register, login, create and manage sites and pages

2026-06-30 11:13:55 +05:45
commit 65f38d68c5
110 changed files with 28049 additions and 0 deletions
--- a/backend/src/test/java/com/indie/config/GlobalExceptionHandlerTest.java
+++ b/backend/src/test/java/com/indie/config/GlobalExceptionHandlerTest.java
@@ -0,0 +1,45 @@
+package com.indie.config;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ProblemDetail;
+import org.springframework.validation.BeanPropertyBindingResult;
+import org.springframework.validation.FieldError;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class GlobalExceptionHandlerTest {
+
+    private final GlobalExceptionHandler handler = new GlobalExceptionHandler();
+
+    @Test
+    void illegalArgumentReturns400() {
+        ProblemDetail detail = handler.handleBadRequest(new IllegalArgumentException("bad input"));
+
+        assertEquals(HttpStatus.BAD_REQUEST.value(), detail.getStatus());
+        assertEquals("bad input", detail.getDetail());
+    }
+
+    @Test
+    void validationReturns400WithJoinedMessages() {
+        BeanPropertyBindingResult bindingResult = new BeanPropertyBindingResult(new Object(), "obj");
+        bindingResult.addError(new FieldError("obj", "email", "Email is required"));
+        bindingResult.addError(new FieldError("obj", "password", "Password is required"));
+        MethodArgumentNotValidException ex = new MethodArgumentNotValidException(null, bindingResult);
+
+        ProblemDetail detail = handler.handleValidation(ex);
+
+        assertEquals(HttpStatus.BAD_REQUEST.value(), detail.getStatus());
+        assertTrue(detail.getDetail().contains("Email is required"));
+        assertTrue(detail.getDetail().contains("Password is required"));
+    }
+
+    @Test
+    void generalExceptionReturns500() {
+        ProblemDetail detail = handler.handleGeneral(new RuntimeException("oops"));
+
+        assertEquals(HttpStatus.INTERNAL_SERVER_ERROR.value(), detail.getStatus());
+        assertEquals("An unexpected error occurred", detail.getDetail());
+    }
+}
--- a/backend/src/test/java/com/indie/config/UserPrincipalTest.java
+++ b/backend/src/test/java/com/indie/config/UserPrincipalTest.java
@@ -0,0 +1,45 @@
+package com.indie.config;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class UserPrincipalTest {
+
+    private final UUID id = UUID.randomUUID();
+    private final UserPrincipal principal = new UserPrincipal(id, "test@example.com", "Test User");
+
+    @Test
+    void getUsernameReturnsEmail() {
+        assertEquals("test@example.com", principal.getUsername());
+    }
+
+    @Test
+    void getPasswordReturnsNull() {
+        assertNull(principal.getPassword());
+    }
+
+    @Test
+    void authoritiesContainUserRole() {
+        var authorities = principal.getAuthorities();
+        assertEquals(1, authorities.size());
+        assertEquals("ROLE_USER", authorities.iterator().next().getAuthority());
+    }
+
+    @Test
+    void accountIsAlwaysEnabled() {
+        assertTrue(principal.isEnabled());
+        assertTrue(principal.isAccountNonExpired());
+        assertTrue(principal.isAccountNonLocked());
+        assertTrue(principal.isCredentialsNonExpired());
+    }
+
+    @Test
+    void recordComponents() {
+        assertEquals(id, principal.id());
+        assertEquals("test@example.com", principal.email());
+        assertEquals("Test User", principal.name());
+    }
+}
--- a/backend/src/test/java/com/indie/controller/AuthControllerTest.java
+++ b/backend/src/test/java/com/indie/controller/AuthControllerTest.java
@@ -0,0 +1,141 @@
+package com.indie.controller;
+
+import com.indie.config.GlobalExceptionHandler;
+import com.indie.dto.AuthResponse;
+import com.indie.dto.AuthResponse.UserInfo;
+import com.indie.dto.LoginRequest;
+import com.indie.dto.RefreshTokenRequest;
+import com.indie.dto.RegisterRequest;
+import com.indie.model.AuthProvider;
+import com.indie.service.AuthService;
+import com.indie.support.TestSecurityConfig;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.context.annotation.Import;
+import org.springframework.http.MediaType;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.util.UUID;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.when;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+@WebMvcTest(AuthController.class)
+@Import({GlobalExceptionHandler.class, TestSecurityConfig.class})
+class AuthControllerTest {
+
+    private final MockMvc mockMvc;
+    private final ObjectMapper objectMapper;
+
+    @MockBean
+    private AuthService authService;
+
+    AuthControllerTest(@Autowired MockMvc mockMvc, @Autowired ObjectMapper objectMapper) {
+        this.mockMvc = mockMvc;
+        this.objectMapper = objectMapper;
+    }
+
+    @Test
+    void registerReturns201() throws Exception {
+        AuthResponse response = AuthResponse.builder()
+                .accessToken("at-123")
+                .refreshToken("rt-456")
+                .tokenType("Bearer")
+                .user(new UserInfo(UUID.randomUUID(), "test@example.com", "Test", null, AuthProvider.LOCAL))
+                .build();
+        when(authService.register(any(RegisterRequest.class))).thenReturn(response);
+
+        RegisterRequest request = new RegisterRequest();
+        request.setEmail("test@example.com");
+        request.setPassword("password123");
+        request.setName("Test");
+
+        mockMvc.perform(post("/api/auth/register")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isCreated())
+                .andExpect(jsonPath("$.accessToken").value("at-123"))
+                .andExpect(jsonPath("$.refreshToken").value("rt-456"))
+                .andExpect(jsonPath("$.tokenType").value("Bearer"))
+                .andExpect(jsonPath("$.user.email").value("test@example.com"));
+    }
+
+    @Test
+    void registerReturns400OnValidationError() throws Exception {
+        RegisterRequest request = new RegisterRequest();
+
+        mockMvc.perform(post("/api/auth/register")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isBadRequest());
+    }
+
+    @Test
+    void loginReturns200() throws Exception {
+        AuthResponse response = AuthResponse.builder()
+                .accessToken("at-123")
+                .refreshToken("rt-456")
+                .tokenType("Bearer")
+                .user(new UserInfo(UUID.randomUUID(), "login@example.com", "Login User", null, AuthProvider.LOCAL))
+                .build();
+        when(authService.login(any(LoginRequest.class))).thenReturn(response);
+
+        LoginRequest request = new LoginRequest();
+        request.setEmail("login@example.com");
+        request.setPassword("password123");
+
+        mockMvc.perform(post("/api/auth/login")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.accessToken").value("at-123"))
+                .andExpect(jsonPath("$.user.email").value("login@example.com"));
+    }
+
+    @Test
+    void loginReturns400OnInvalidCredentials() throws Exception {
+        when(authService.login(any(LoginRequest.class)))
+                .thenThrow(new IllegalArgumentException("Invalid email or password"));
+
+        LoginRequest request = new LoginRequest();
+        request.setEmail("bad@example.com");
+        request.setPassword("wrong");
+
+        mockMvc.perform(post("/api/auth/login")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isBadRequest())
+                .andExpect(jsonPath("$.detail").value("Invalid email or password"));
+    }
+
+    @Test
+    void refreshReturns200() throws Exception {
+        AuthResponse response = AuthResponse.builder()
+                .accessToken("new-at")
+                .refreshToken("new-rt")
+                .tokenType("Bearer")
+                .user(new UserInfo(UUID.randomUUID(), "user@example.com", "User", null, AuthProvider.LOCAL))
+                .build();
+        when(authService.refreshToken(any(RefreshTokenRequest.class))).thenReturn(response);
+
+        RefreshTokenRequest request = new RefreshTokenRequest();
+        request.setRefreshToken("valid-refresh-token");
+
+        mockMvc.perform(post("/api/auth/refresh")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.accessToken").value("new-at"));
+    }
+
+    @Test
+    void logoutReturns204() throws Exception {
+        mockMvc.perform(post("/api/auth/logout"))
+                .andExpect(status().isNoContent());
+    }
+}
--- a/backend/src/test/java/com/indie/controller/PageControllerTest.java
+++ b/backend/src/test/java/com/indie/controller/PageControllerTest.java
@@ -0,0 +1,201 @@
+package com.indie.controller;
+
+import com.indie.config.GlobalExceptionHandler;
+import com.indie.config.JwtAuthenticationToken;
+import com.indie.config.UserPrincipal;
+import com.indie.dto.PageRequest;
+import com.indie.model.Page;
+import com.indie.model.Site;
+import com.indie.model.SiteStatus;
+import com.indie.repository.PageRepository;
+import com.indie.repository.SiteRepository;
+import com.indie.support.TestSecurityConfig;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.context.annotation.Import;
+import org.springframework.http.MediaType;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.when;
+import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.authentication;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+@WebMvcTest(PageController.class)
+@Import({GlobalExceptionHandler.class, TestSecurityConfig.class})
+class PageControllerTest {
+
+    private final MockMvc mockMvc;
+    private final ObjectMapper objectMapper;
+
+    @MockBean
+    private PageRepository pageRepository;
+
+    @MockBean
+    private SiteRepository siteRepository;
+
+    private UUID userId;
+
+    PageControllerTest(@Autowired MockMvc mockMvc, @Autowired ObjectMapper objectMapper) {
+        this.mockMvc = mockMvc;
+        this.objectMapper = objectMapper;
+    }
+    private UUID siteId;
+    private UserPrincipal principal;
+    private JwtAuthenticationToken auth;
+
+    @BeforeEach
+    void setUp() {
+        userId = UUID.randomUUID();
+        siteId = UUID.randomUUID();
+        principal = new UserPrincipal(userId, "user@test.com", "Test User");
+        auth = new JwtAuthenticationToken(principal, "test-token");
+    }
+
+    @Test
+    void listPagesReturns200() throws Exception {
+        Site site = Site.builder().id(siteId).userId(userId).name("Site").build();
+        when(siteRepository.findById(siteId)).thenReturn(Optional.of(site));
+
+        Page page = Page.builder()
+                .id(UUID.randomUUID())
+                .siteId(siteId)
+                .title("Home")
+                .slug("home")
+                .orderIndex(0)
+                .build();
+        when(pageRepository.findBySiteIdOrderByOrderIndexAsc(siteId))
+                .thenReturn(List.of(page));
+
+        mockMvc.perform(get("/api/sites/{siteId}/pages", siteId)
+                        .with(authentication(auth)))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$[0].title").value("Home"))
+                .andExpect(jsonPath("$[0].slug").value("home"));
+    }
+
+    @Test
+    void createPageReturns201() throws Exception {
+        Site site = Site.builder().id(siteId).userId(userId).name("Site").build();
+        when(siteRepository.findById(siteId)).thenReturn(Optional.of(site));
+        when(pageRepository.existsBySiteIdAndSlug(siteId, "about")).thenReturn(false);
+
+        Page saved = Page.builder()
+                .id(UUID.randomUUID())
+                .siteId(siteId)
+                .title("About")
+                .slug("about")
+                .orderIndex(1)
+                .createdAt(LocalDateTime.now())
+                .build();
+        when(pageRepository.save(any(Page.class))).thenReturn(saved);
+
+        PageRequest request = new PageRequest();
+        request.setTitle("About");
+        request.setSlug("about");
+        request.setOrderIndex(1);
+
+        mockMvc.perform(post("/api/sites/{siteId}/pages", siteId)
+                        .with(authentication(auth))
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isCreated())
+                .andExpect(jsonPath("$.title").value("About"))
+                .andExpect(jsonPath("$.slug").value("about"));
+    }
+
+    @Test
+    void createPageReturns400OnDuplicateSlug() throws Exception {
+        Site site = Site.builder().id(siteId).userId(userId).name("Site").build();
+        when(siteRepository.findById(siteId)).thenReturn(Optional.of(site));
+        when(pageRepository.existsBySiteIdAndSlug(siteId, "home")).thenReturn(true);
+
+        PageRequest request = new PageRequest();
+        request.setTitle("Home");
+        request.setSlug("home");
+        request.setOrderIndex(0);
+
+        mockMvc.perform(post("/api/sites/{siteId}/pages", siteId)
+                        .with(authentication(auth))
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isBadRequest())
+                .andExpect(jsonPath("$.detail").value("A page with this slug already exists"));
+    }
+
+    @Test
+    void deletePageReturns204() throws Exception {
+        Site site = Site.builder().id(siteId).userId(userId).name("Site").build();
+        when(siteRepository.findById(siteId)).thenReturn(Optional.of(site));
+
+        UUID pageId = UUID.randomUUID();
+        Page page = Page.builder()
+                .id(pageId)
+                .siteId(siteId)
+                .title("To Delete")
+                .slug("to-delete")
+                .orderIndex(0)
+                .build();
+        when(pageRepository.findById(pageId)).thenReturn(Optional.of(page));
+
+        mockMvc.perform(delete("/api/sites/{siteId}/pages/{pageId}", siteId, pageId)
+                        .with(authentication(auth)))
+                .andExpect(status().isNoContent());
+    }
+
+    @Test
+    void updatePageReturns200() throws Exception {
+        Site site = Site.builder().id(siteId).userId(userId).name("Site").build();
+        when(siteRepository.findById(siteId)).thenReturn(Optional.of(site));
+
+        UUID pageId = UUID.randomUUID();
+        Page existing = Page.builder()
+                .id(pageId)
+                .siteId(siteId)
+                .title("Old Title")
+                .slug("old-slug")
+                .orderIndex(0)
+                .build();
+        when(pageRepository.findById(pageId)).thenReturn(Optional.of(existing));
+        when(pageRepository.existsBySiteIdAndSlug(siteId, "new-slug")).thenReturn(false);
+        when(pageRepository.save(any(Page.class))).thenAnswer(invocation -> invocation.getArgument(0));
+
+        PageRequest request = new PageRequest();
+        request.setTitle("New Title");
+        request.setSlug("new-slug");
+        request.setOrderIndex(1);
+
+        mockMvc.perform(put("/api/sites/{siteId}/pages/{pageId}", siteId, pageId)
+                        .with(authentication(auth))
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.title").value("New Title"))
+                .andExpect(jsonPath("$.slug").value("new-slug"));
+    }
+
+    @Test
+    void listPagesReturns400OnWrongSiteOwner() throws Exception {
+        Site site = Site.builder()
+                .id(siteId)
+                .userId(UUID.randomUUID())
+                .name("Not Mine")
+                .build();
+        when(siteRepository.findById(siteId)).thenReturn(Optional.of(site));
+
+        mockMvc.perform(get("/api/sites/{siteId}/pages", siteId)
+                        .with(authentication(auth)))
+                .andExpect(status().isBadRequest())
+                .andExpect(jsonPath("$.detail").value("Site not found"));
+    }
+}
--- a/backend/src/test/java/com/indie/controller/SiteControllerTest.java
+++ b/backend/src/test/java/com/indie/controller/SiteControllerTest.java
@@ -0,0 +1,195 @@
+package com.indie.controller;
+
+import com.indie.config.GlobalExceptionHandler;
+import com.indie.config.JwtAuthenticationToken;
+import com.indie.config.UserPrincipal;
+import com.indie.dto.SiteRequest;
+import com.indie.model.Site;
+import com.indie.model.SiteStatus;
+import com.indie.repository.SiteRepository;
+import com.indie.support.TestSecurityConfig;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.context.annotation.Import;
+import org.springframework.http.MediaType;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.when;
+import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.authentication;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+@WebMvcTest(SiteController.class)
+@Import({GlobalExceptionHandler.class, TestSecurityConfig.class})
+class SiteControllerTest {
+
+    private final MockMvc mockMvc;
+    private final ObjectMapper objectMapper;
+
+    @MockBean
+    private SiteRepository siteRepository;
+
+    private UUID userId;
+
+    SiteControllerTest(@Autowired MockMvc mockMvc, @Autowired ObjectMapper objectMapper) {
+        this.mockMvc = mockMvc;
+        this.objectMapper = objectMapper;
+    }
+    private UserPrincipal principal;
+    private JwtAuthenticationToken auth;
+
+    @BeforeEach
+    void setUp() {
+        userId = UUID.randomUUID();
+        principal = new UserPrincipal(userId, "user@test.com", "Test User");
+        auth = new JwtAuthenticationToken(principal, "test-token");
+    }
+
+    @Test
+    void listSitesReturns200() throws Exception {
+        Site site = Site.builder()
+                .id(UUID.randomUUID())
+                .userId(userId)
+                .name("My Site")
+                .status(SiteStatus.DRAFT)
+                .build();
+        when(siteRepository.findByUserIdOrderByCreatedAtDesc(userId))
+                .thenReturn(List.of(site));
+
+        mockMvc.perform(get("/api/sites")
+                        .with(authentication(auth)))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$[0].name").value("My Site"))
+                .andExpect(jsonPath("$[0].status").value("DRAFT"));
+    }
+
+    @Test
+    void createSiteReturns201() throws Exception {
+        Site saved = Site.builder()
+                .id(UUID.randomUUID())
+                .userId(userId)
+                .name("New Site")
+                .description("Description")
+                .subdomain("new-site")
+                .status(SiteStatus.DRAFT)
+                .createdAt(LocalDateTime.now())
+                .updatedAt(LocalDateTime.now())
+                .build();
+        when(siteRepository.existsBySubdomain("new-site")).thenReturn(false);
+        when(siteRepository.save(any(Site.class))).thenReturn(saved);
+
+        SiteRequest request = new SiteRequest();
+        request.setName("New Site");
+        request.setDescription("Description");
+        request.setSubdomain("new-site");
+
+        mockMvc.perform(post("/api/sites")
+                        .with(authentication(auth))
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isCreated())
+                .andExpect(jsonPath("$.name").value("New Site"))
+                .andExpect(jsonPath("$.subdomain").value("new-site"));
+    }
+
+    @Test
+    void createSiteReturns400OnDuplicateSubdomain() throws Exception {
+        when(siteRepository.existsBySubdomain("taken")).thenReturn(true);
+
+        SiteRequest request = new SiteRequest();
+        request.setName("Site");
+        request.setSubdomain("taken");
+
+        mockMvc.perform(post("/api/sites")
+                        .with(authentication(auth))
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isBadRequest());
+    }
+
+    @Test
+    void getSiteReturns200() throws Exception {
+        UUID siteId = UUID.randomUUID();
+        Site site = Site.builder()
+                .id(siteId)
+                .userId(userId)
+                .name("My Site")
+                .status(SiteStatus.PUBLISHED)
+                .build();
+        when(siteRepository.findById(siteId)).thenReturn(Optional.of(site));
+
+        mockMvc.perform(get("/api/sites/{id}", siteId)
+                        .with(authentication(auth)))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.name").value("My Site"))
+                .andExpect(jsonPath("$.status").value("PUBLISHED"));
+    }
+
+    @Test
+    void getSiteReturns400OnWrongOwner() throws Exception {
+        UUID siteId = UUID.randomUUID();
+        Site site = Site.builder()
+                .id(siteId)
+                .userId(UUID.randomUUID())
+                .name("Not Mine")
+                .build();
+        when(siteRepository.findById(siteId)).thenReturn(Optional.of(site));
+
+        mockMvc.perform(get("/api/sites/{id}", siteId)
+                        .with(authentication(auth)))
+                .andExpect(status().isBadRequest())
+                .andExpect(jsonPath("$.detail").value("Site not found"));
+    }
+
+    @Test
+    void deleteSiteReturns204() throws Exception {
+        UUID siteId = UUID.randomUUID();
+        Site site = Site.builder()
+                .id(siteId)
+                .userId(userId)
+                .name("To Delete")
+                .build();
+        when(siteRepository.findById(siteId)).thenReturn(Optional.of(site));
+
+        mockMvc.perform(delete("/api/sites/{id}", siteId)
+                        .with(authentication(auth)))
+                .andExpect(status().isNoContent());
+    }
+
+    @Test
+    void updateSiteReturns200() throws Exception {
+        UUID siteId = UUID.randomUUID();
+        Site existing = Site.builder()
+                .id(siteId)
+                .userId(userId)
+                .name("Old Name")
+                .subdomain("old-sub")
+                .status(SiteStatus.DRAFT)
+                .build();
+        when(siteRepository.findById(siteId)).thenReturn(Optional.of(existing));
+        when(siteRepository.existsBySubdomain("new-sub")).thenReturn(false);
+        when(siteRepository.save(any(Site.class))).thenAnswer(invocation -> invocation.getArgument(0));
+
+        SiteRequest request = new SiteRequest();
+        request.setName("New Name");
+        request.setSubdomain("new-sub");
+
+        mockMvc.perform(put("/api/sites/{id}", siteId)
+                        .with(authentication(auth))
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.name").value("New Name"))
+                .andExpect(jsonPath("$.subdomain").value("new-sub"));
+    }
+}
--- a/backend/src/test/java/com/indie/dto/PageResponseTest.java
+++ b/backend/src/test/java/com/indie/dto/PageResponseTest.java
@@ -0,0 +1,57 @@
+package com.indie.dto;
+
+import com.indie.model.Page;
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class PageResponseTest {
+
+    @Test
+    void fromMapsAllFields() {
+        UUID id = UUID.randomUUID();
+        UUID siteId = UUID.randomUUID();
+        LocalDateTime now = LocalDateTime.now();
+
+        Page page = Page.builder()
+                .id(id)
+                .siteId(siteId)
+                .title("About")
+                .slug("about")
+                .seoTitle("About Us")
+                .seoDescription("Learn about us")
+                .orderIndex(1)
+                .createdAt(now)
+                .build();
+
+        PageResponse response = PageResponse.from(page);
+
+        assertEquals(id, response.getId());
+        assertEquals(siteId, response.getSiteId());
+        assertEquals("About", response.getTitle());
+        assertEquals("about", response.getSlug());
+        assertEquals("About Us", response.getSeoTitle());
+        assertEquals("Learn about us", response.getSeoDescription());
+        assertEquals(1, response.getOrderIndex());
+        assertEquals(now, response.getCreatedAt());
+    }
+
+    @Test
+    void fromHandlesNullOptionalFields() {
+        Page page = Page.builder()
+                .id(UUID.randomUUID())
+                .siteId(UUID.randomUUID())
+                .title("Home")
+                .slug("home")
+                .orderIndex(0)
+                .build();
+
+        PageResponse response = PageResponse.from(page);
+
+        assertNull(response.getSeoTitle());
+        assertNull(response.getSeoDescription());
+    }
+}
--- a/backend/src/test/java/com/indie/dto/SiteResponseTest.java
+++ b/backend/src/test/java/com/indie/dto/SiteResponseTest.java
@@ -0,0 +1,65 @@
+package com.indie.dto;
+
+import com.indie.model.Site;
+import com.indie.model.SiteStatus;
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDateTime;
+import java.util.Map;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class SiteResponseTest {
+
+    @Test
+    void fromMapsAllFields() {
+        UUID id = UUID.randomUUID();
+        UUID userId = UUID.randomUUID();
+        LocalDateTime now = LocalDateTime.now();
+        Map<String, Object> theme = Map.of("primaryColor", "#000");
+
+        Site site = Site.builder()
+                .id(id)
+                .userId(userId)
+                .name("My Site")
+                .description("A test site")
+                .subdomain("mysite")
+                .themeConfig(theme)
+                .status(SiteStatus.PUBLISHED)
+                .publishedAt(now)
+                .createdAt(now)
+                .updatedAt(now)
+                .build();
+
+        SiteResponse response = SiteResponse.from(site);
+
+        assertEquals(id, response.getId());
+        assertEquals(userId, response.getUserId());
+        assertEquals("My Site", response.getName());
+        assertEquals("A test site", response.getDescription());
+        assertEquals("mysite", response.getSubdomain());
+        assertEquals(theme, response.getThemeConfig());
+        assertEquals(SiteStatus.PUBLISHED, response.getStatus());
+        assertEquals(now, response.getPublishedAt());
+        assertEquals(now, response.getCreatedAt());
+        assertEquals(now, response.getUpdatedAt());
+    }
+
+    @Test
+    void fromHandlesNullOptionalFields() {
+        Site site = Site.builder()
+                .id(UUID.randomUUID())
+                .userId(UUID.randomUUID())
+                .name("Site")
+                .status(SiteStatus.DRAFT)
+                .build();
+
+        SiteResponse response = SiteResponse.from(site);
+
+        assertNull(response.getDescription());
+        assertNull(response.getSubdomain());
+        assertNull(response.getThemeConfig());
+        assertNull(response.getPublishedAt());
+    }
+}
--- a/backend/src/test/java/com/indie/model/ComponentTest.java
+++ b/backend/src/test/java/com/indie/model/ComponentTest.java
@@ -0,0 +1,39 @@
+package com.indie.model;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class ComponentTest {
+
+    @Test
+    void prePersistSetsId() {
+        Component component = new Component();
+        component.setPageId(UUID.randomUUID());
+        component.setType(ComponentType.HEADING);
+        component.setOrderIndex(0);
+
+        assertNull(component.getId());
+
+        component.onCreate();
+
+        assertNotNull(component.getId());
+    }
+
+    @Test
+    void prePersistDoesNotOverrideExistingId() {
+        UUID existingId = UUID.randomUUID();
+        Component component = Component.builder()
+                .id(existingId)
+                .pageId(UUID.randomUUID())
+                .type(ComponentType.TEXT)
+                .orderIndex(0)
+                .build();
+
+        component.onCreate();
+
+        assertEquals(existingId, component.getId());
+    }
+}
--- a/backend/src/test/java/com/indie/model/PageTest.java
+++ b/backend/src/test/java/com/indie/model/PageTest.java
@@ -0,0 +1,57 @@
+package com.indie.model;
+
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class PageTest {
+
+    @Test
+    void prePersistSetsIdAndCreatedAt() {
+        Page page = new Page();
+        page.setSiteId(UUID.randomUUID());
+        page.setTitle("Home");
+        page.setSlug("home");
+        page.setOrderIndex(0);
+
+        assertNull(page.getId());
+        assertNull(page.getCreatedAt());
+
+        page.onCreate();
+
+        assertNotNull(page.getId());
+        assertNotNull(page.getCreatedAt());
+    }
+
+    @Test
+    void prePersistDoesNotOverrideExistingId() {
+        UUID existingId = UUID.randomUUID();
+        Page page = Page.builder()
+                .id(existingId)
+                .siteId(UUID.randomUUID())
+                .title("Home")
+                .slug("home")
+                .orderIndex(0)
+                .build();
+
+        page.onCreate();
+
+        assertEquals(existingId, page.getId());
+    }
+
+    @Test
+    void noUpdatedAtField() {
+        Page page = Page.builder()
+                .siteId(UUID.randomUUID())
+                .title("Home")
+                .slug("home")
+                .orderIndex(0)
+                .build();
+        page.onCreate();
+
+        assertNotNull(page.getCreatedAt());
+    }
+}
--- a/backend/src/test/java/com/indie/model/SiteTest.java
+++ b/backend/src/test/java/com/indie/model/SiteTest.java
@@ -0,0 +1,68 @@
+package com.indie.model;
+
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class SiteTest {
+
+    @Test
+    void prePersistSetsIdCreatedAtUpdatedAtAndDefaultStatus() {
+        Site site = new Site();
+        site.setUserId(UUID.randomUUID());
+        site.setName("Test Site");
+
+        assertNull(site.getId());
+        assertNull(site.getCreatedAt());
+        assertNull(site.getUpdatedAt());
+
+        site.onCreate();
+
+        assertNotNull(site.getId());
+        assertNotNull(site.getCreatedAt());
+        assertNotNull(site.getUpdatedAt());
+        assertEquals(SiteStatus.DRAFT, site.getStatus());
+    }
+
+    @Test
+    void prePersistDoesNotOverrideExistingId() {
+        UUID existingId = UUID.randomUUID();
+        Site site = Site.builder()
+                .id(existingId)
+                .userId(UUID.randomUUID())
+                .name("Test")
+                .build();
+
+        site.onCreate();
+
+        assertEquals(existingId, site.getId());
+    }
+
+    @Test
+    void preUpdateSetsUpdatedAt() {
+        Site site = Site.builder()
+                .userId(UUID.randomUUID())
+                .name("Test")
+                .build();
+        site.onCreate();
+
+        LocalDateTime original = site.getUpdatedAt();
+
+        site.onUpdate();
+
+        assertTrue(site.getUpdatedAt().isAfter(original));
+    }
+
+    @Test
+    void builderSetsDefaultStatus() {
+        Site site = Site.builder()
+                .userId(UUID.randomUUID())
+                .name("Test")
+                .build();
+
+        assertEquals(SiteStatus.DRAFT, site.getStatus());
+    }
+}
--- a/backend/src/test/java/com/indie/model/UserTest.java
+++ b/backend/src/test/java/com/indie/model/UserTest.java
@@ -0,0 +1,71 @@
+package com.indie.model;
+
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class UserTest {
+
+    @Test
+    void prePersistSetsIdCreatedAtAndUpdatedAt() {
+        User user = new User();
+        user.setEmail("test@example.com");
+        user.setName("Test User");
+        user.setProvider(AuthProvider.LOCAL);
+
+        assertNull(user.getId());
+        assertNull(user.getCreatedAt());
+        assertNull(user.getUpdatedAt());
+
+        user.onCreate();
+
+        assertNotNull(user.getId());
+        assertNotNull(user.getCreatedAt());
+        assertNotNull(user.getUpdatedAt());
+    }
+
+    @Test
+    void prePersistDoesNotOverrideExistingId() {
+        User user = User.builder()
+                .id(UUID.randomUUID())
+                .email("test@example.com")
+                .name("Test")
+                .provider(AuthProvider.LOCAL)
+                .build();
+
+        UUID existingId = user.getId();
+        user.onCreate();
+
+        assertEquals(existingId, user.getId());
+    }
+
+    @Test
+    void preUpdateSetsUpdatedAt() {
+        User user = User.builder()
+                .email("test@example.com")
+                .name("Test")
+                .provider(AuthProvider.LOCAL)
+                .build();
+        user.onCreate();
+
+        LocalDateTime original = user.getUpdatedAt();
+
+        user.onUpdate();
+
+        assertTrue(user.getUpdatedAt().isAfter(original));
+    }
+
+    @Test
+    void builderDefaults() {
+        User user = User.builder()
+                .email("test@example.com")
+                .name("Test")
+                .provider(AuthProvider.LOCAL)
+                .build();
+
+        assertFalse(user.isEmailVerified());
+    }
+}
--- a/backend/src/test/java/com/indie/repository/ComponentRepositoryTest.java
+++ b/backend/src/test/java/com/indie/repository/ComponentRepositoryTest.java
@@ -0,0 +1,92 @@
+package com.indie.repository;
+
+import com.indie.model.Component;
+import com.indie.model.ComponentType;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+
+import java.util.List;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+@DataJpaTest
+class ComponentRepositoryTest {
+
+    private final ComponentRepository componentRepository;
+
+    ComponentRepositoryTest(@Autowired ComponentRepository componentRepository) {
+        this.componentRepository = componentRepository;
+    }
+
+    @Test
+    void saveAndFindById() {
+        Component component = Component.builder()
+                .pageId(UUID.randomUUID())
+                .type(ComponentType.HEADING)
+                .orderIndex(0)
+                .build();
+
+        Component saved = componentRepository.save(component);
+
+        assertNotNull(saved.getId());
+
+        var found = componentRepository.findById(saved.getId());
+        assertTrue(found.isPresent());
+        assertEquals(ComponentType.HEADING, found.get().getType());
+    }
+
+    @Test
+    void findByPageIdOrderByOrderIndexAsc() {
+        UUID pageId = UUID.randomUUID();
+
+        Component c1 = Component.builder().pageId(pageId).type(ComponentType.TEXT).orderIndex(1).build();
+        Component c2 = Component.builder().pageId(pageId).type(ComponentType.HEADING).orderIndex(0).build();
+        componentRepository.save(c1);
+        componentRepository.save(c2);
+
+        List<Component> components = componentRepository.findByPageIdOrderByOrderIndexAsc(pageId);
+
+        assertEquals(2, components.size());
+        assertEquals(ComponentType.HEADING, components.get(0).getType());
+        assertEquals(ComponentType.TEXT, components.get(1).getType());
+    }
+
+    @Test
+    void findByPageIdReturnsEmptyForUnknownPage() {
+        List<Component> components = componentRepository.findByPageIdOrderByOrderIndexAsc(UUID.randomUUID());
+        assertTrue(components.isEmpty());
+    }
+
+    @Test
+    void deleteByPageId() {
+        UUID pageId = UUID.randomUUID();
+
+        Component c1 = Component.builder().pageId(pageId).type(ComponentType.BUTTON).orderIndex(0).build();
+        Component c2 = Component.builder().pageId(pageId).type(ComponentType.TEXT).orderIndex(1).build();
+        componentRepository.save(c1);
+        componentRepository.save(c2);
+
+        componentRepository.deleteByPageId(pageId);
+
+        List<Component> remaining = componentRepository.findByPageIdOrderByOrderIndexAsc(pageId);
+        assertTrue(remaining.isEmpty());
+    }
+
+    @Test
+    void deleteByPageIdOnlyDeletesForGivenPage() {
+        UUID pageId1 = UUID.randomUUID();
+        UUID pageId2 = UUID.randomUUID();
+
+        Component c1 = Component.builder().pageId(pageId1).type(ComponentType.GALLERY).orderIndex(0).build();
+        Component c2 = Component.builder().pageId(pageId2).type(ComponentType.IMAGE).orderIndex(0).build();
+        componentRepository.save(c1);
+        componentRepository.save(c2);
+
+        componentRepository.deleteByPageId(pageId1);
+
+        assertEquals(1, componentRepository.findByPageIdOrderByOrderIndexAsc(pageId2).size());
+        assertEquals(0, componentRepository.findByPageIdOrderByOrderIndexAsc(pageId1).size());
+    }
+}
--- a/backend/src/test/java/com/indie/repository/PageRepositoryTest.java
+++ b/backend/src/test/java/com/indie/repository/PageRepositoryTest.java
@@ -0,0 +1,101 @@
+package com.indie.repository;
+
+import com.indie.model.Page;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+@DataJpaTest
+class PageRepositoryTest {
+
+    private final PageRepository pageRepository;
+
+    PageRepositoryTest(@Autowired PageRepository pageRepository) {
+        this.pageRepository = pageRepository;
+    }
+
+    @Test
+    void saveAndFindById() {
+        Page page = Page.builder()
+                .siteId(UUID.randomUUID())
+                .title("Home")
+                .slug("home")
+                .orderIndex(0)
+                .build();
+
+        Page saved = pageRepository.save(page);
+
+        assertNotNull(saved.getId());
+
+        Optional<Page> found = pageRepository.findById(saved.getId());
+        assertTrue(found.isPresent());
+        assertEquals("Home", found.get().getTitle());
+    }
+
+    @Test
+    void findBySiteIdOrderByOrderIndexAsc() {
+        UUID siteId = UUID.randomUUID();
+
+        Page page1 = Page.builder().siteId(siteId).title("About").slug("about").orderIndex(1).build();
+        Page page2 = Page.builder().siteId(siteId).title("Home").slug("home").orderIndex(0).build();
+        pageRepository.save(page1);
+        pageRepository.save(page2);
+
+        List<Page> pages = pageRepository.findBySiteIdOrderByOrderIndexAsc(siteId);
+
+        assertEquals(2, pages.size());
+        assertEquals("home", pages.get(0).getSlug());
+        assertEquals("about", pages.get(1).getSlug());
+    }
+
+    @Test
+    void findBySiteIdReturnsEmptyForUnknownSite() {
+        List<Page> pages = pageRepository.findBySiteIdOrderByOrderIndexAsc(UUID.randomUUID());
+        assertTrue(pages.isEmpty());
+    }
+
+    @Test
+    void findBySiteIdAndSlug() {
+        UUID siteId = UUID.randomUUID();
+        Page page = Page.builder()
+                .siteId(siteId)
+                .title("Contact")
+                .slug("contact")
+                .orderIndex(2)
+                .build();
+        pageRepository.save(page);
+
+        Optional<Page> found = pageRepository.findBySiteIdAndSlug(siteId, "contact");
+        assertTrue(found.isPresent());
+        assertEquals("Contact", found.get().getTitle());
+    }
+
+    @Test
+    void findBySiteIdAndSlugReturnsEmptyWhenNotMatching() {
+        Optional<Page> found = pageRepository.findBySiteIdAndSlug(UUID.randomUUID(), "nonexistent");
+        assertTrue(found.isEmpty());
+    }
+
+    @Test
+    void existsBySiteIdAndSlug() {
+        UUID siteId = UUID.randomUUID();
+        Page page = Page.builder()
+                .siteId(siteId)
+                .title("Blog")
+                .slug("blog")
+                .orderIndex(0)
+                .build();
+        pageRepository.save(page);
+
+        assertTrue(pageRepository.existsBySiteIdAndSlug(siteId, "blog"));
+        assertFalse(pageRepository.existsBySiteIdAndSlug(siteId, "nonexistent"));
+    }
+
+
+}
--- a/backend/src/test/java/com/indie/repository/SiteRepositoryTest.java
+++ b/backend/src/test/java/com/indie/repository/SiteRepositoryTest.java
@@ -0,0 +1,89 @@
+package com.indie.repository;
+
+import com.indie.model.Site;
+import com.indie.model.SiteStatus;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+@DataJpaTest
+class SiteRepositoryTest {
+
+    private final SiteRepository siteRepository;
+
+    SiteRepositoryTest(@Autowired SiteRepository siteRepository) {
+        this.siteRepository = siteRepository;
+    }
+
+    @Test
+    void saveAndFindById() {
+        Site site = Site.builder()
+                .userId(UUID.randomUUID())
+                .name("Test Site")
+                .build();
+
+        Site saved = siteRepository.save(site);
+
+        assertNotNull(saved.getId());
+        assertEquals(SiteStatus.DRAFT, saved.getStatus());
+
+        Optional<Site> found = siteRepository.findById(saved.getId());
+        assertTrue(found.isPresent());
+        assertEquals("Test Site", found.get().getName());
+    }
+
+    @Test
+    void findByUserIdOrderByCreatedAtDesc() {
+        UUID userId = UUID.randomUUID();
+
+        Site site1 = Site.builder().userId(userId).name("Site 1").build();
+        Site site2 = Site.builder().userId(userId).name("Site 2").build();
+        siteRepository.save(site1);
+        siteRepository.save(site2);
+
+        List<Site> sites = siteRepository.findByUserIdOrderByCreatedAtDesc(userId);
+
+        assertEquals(2, sites.size());
+        assertTrue(sites.get(0).getCreatedAt().isAfter(sites.get(1).getCreatedAt())
+                || sites.get(0).getCreatedAt().equals(sites.get(1).getCreatedAt()));
+    }
+
+    @Test
+    void findByUserIdReturnsEmptyForUnknownUser() {
+        List<Site> sites = siteRepository.findByUserIdOrderByCreatedAtDesc(UUID.randomUUID());
+        assertTrue(sites.isEmpty());
+    }
+
+    @Test
+    void findBySubdomain() {
+        Site site = Site.builder()
+                .userId(UUID.randomUUID())
+                .name("Site")
+                .subdomain("mysubdomain")
+                .build();
+        siteRepository.save(site);
+
+        Optional<Site> found = siteRepository.findBySubdomain("mysubdomain");
+        assertTrue(found.isPresent());
+        assertEquals("Site", found.get().getName());
+    }
+
+    @Test
+    void existsBySubdomain() {
+        Site site = Site.builder()
+                .userId(UUID.randomUUID())
+                .name("Site")
+                .subdomain("exists-sub")
+                .build();
+        siteRepository.save(site);
+
+        assertTrue(siteRepository.existsBySubdomain("exists-sub"));
+        assertFalse(siteRepository.existsBySubdomain("no-sub"));
+    }
+}
--- a/backend/src/test/java/com/indie/repository/UserRepositoryTest.java
+++ b/backend/src/test/java/com/indie/repository/UserRepositoryTest.java
@@ -0,0 +1,89 @@
+package com.indie.repository;
+
+import com.indie.model.AuthProvider;
+import com.indie.model.User;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+
+import java.util.Optional;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+@DataJpaTest
+class UserRepositoryTest {
+
+    private final UserRepository userRepository;
+
+    UserRepositoryTest(@Autowired UserRepository userRepository) {
+        this.userRepository = userRepository;
+    }
+
+    @Test
+    void saveAndFindById() {
+        User user = User.builder()
+                .email("test@example.com")
+                .name("Test User")
+                .provider(AuthProvider.LOCAL)
+                .build();
+
+        User saved = userRepository.save(user);
+
+        assertNotNull(saved.getId());
+
+        Optional<User> found = userRepository.findById(saved.getId());
+        assertTrue(found.isPresent());
+        assertEquals("test@example.com", found.get().getEmail());
+    }
+
+    @Test
+    void findByEmail() {
+        User user = User.builder()
+                .email("find@example.com")
+                .name("Find Me")
+                .provider(AuthProvider.LOCAL)
+                .build();
+        userRepository.save(user);
+
+        Optional<User> found = userRepository.findByEmail("find@example.com");
+        assertTrue(found.isPresent());
+        assertEquals("Find Me", found.get().getName());
+    }
+
+    @Test
+    void findByEmailReturnsEmptyWhenNotFound() {
+        Optional<User> found = userRepository.findByEmail("doesnotexist@example.com");
+        assertTrue(found.isEmpty());
+    }
+
+    @Test
+    void findByProviderAndProviderId() {
+        User user = User.builder()
+                .email("oauth@example.com")
+                .name("OAuth User")
+                .provider(AuthProvider.GOOGLE)
+                .providerId("google-123")
+                .build();
+        userRepository.save(user);
+
+        Optional<User> found = userRepository.findByProviderAndProviderId(AuthProvider.GOOGLE, "google-123");
+        assertTrue(found.isPresent());
+        assertEquals("oauth@example.com", found.get().getEmail());
+    }
+
+    @Test
+    void existsByEmail() {
+        User user = User.builder()
+                .email("exists@example.com")
+                .name("Exists")
+                .provider(AuthProvider.LOCAL)
+                .build();
+        userRepository.save(user);
+
+        assertTrue(userRepository.existsByEmail("exists@example.com"));
+        assertFalse(userRepository.existsByEmail("noone@example.com"));
+    }
+
+
+}
--- a/backend/src/test/java/com/indie/service/AuthServiceTest.java
+++ b/backend/src/test/java/com/indie/service/AuthServiceTest.java
@@ -0,0 +1,190 @@
+package com.indie.service;
+
+import com.indie.dto.AuthResponse;
+import com.indie.dto.LoginRequest;
+import com.indie.dto.RefreshTokenRequest;
+import com.indie.dto.RegisterRequest;
+import com.indie.model.AuthProvider;
+import com.indie.model.User;
+import com.indie.support.FakeJwtConfig;
+import com.indie.support.FakeUserRepository;
+import com.indie.support.StubPasswordEncoder;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class AuthServiceTest {
+
+    private FakeUserRepository userRepository;
+    private AuthService authService;
+
+    @BeforeEach
+    void setUp() {
+        userRepository = new FakeUserRepository();
+        authService = new AuthService(userRepository, new StubPasswordEncoder(), new FakeJwtConfig());
+    }
+
+    @Test
+    void registerCreatesUserAndReturnsTokens() {
+        RegisterRequest request = new RegisterRequest();
+        request.setEmail("new@example.com");
+        request.setPassword("password123");
+        request.setName("New User");
+
+        AuthResponse response = authService.register(request);
+
+        assertNotNull(response.getAccessToken());
+        assertNotNull(response.getRefreshToken());
+        assertEquals("Bearer", response.getTokenType());
+        assertEquals("new@example.com", response.getUser().getEmail());
+        assertEquals("New User", response.getUser().getName());
+        assertEquals(AuthProvider.LOCAL, response.getUser().getProvider());
+    }
+
+    @Test
+    void registerThrowsOnDuplicateEmail() {
+        RegisterRequest request = new RegisterRequest();
+        request.setEmail("dup@example.com");
+        request.setPassword("password123");
+        request.setName("User");
+        authService.register(request);
+
+        RegisterRequest duplicate = new RegisterRequest();
+        duplicate.setEmail("dup@example.com");
+        duplicate.setPassword("password456");
+        duplicate.setName("Other");
+
+        IllegalArgumentException ex = assertThrows(IllegalArgumentException.class,
+                () -> authService.register(duplicate));
+        assertEquals("Email already registered", ex.getMessage());
+    }
+
+    @Test
+    void registerNormalizesEmailCase() {
+        RegisterRequest request = new RegisterRequest();
+        request.setEmail("UpperCase@Example.com");
+        request.setPassword("password123");
+        request.setName("User");
+
+        AuthResponse response = authService.register(request);
+
+        assertEquals("uppercase@example.com", response.getUser().getEmail());
+    }
+
+    @Test
+    void loginWithValidCredentialsReturnsTokens() {
+        RegisterRequest reg = new RegisterRequest();
+        reg.setEmail("login@example.com");
+        reg.setPassword("password123");
+        reg.setName("Login User");
+        authService.register(reg);
+
+        LoginRequest login = new LoginRequest();
+        login.setEmail("login@example.com");
+        login.setPassword("password123");
+
+        AuthResponse response = authService.login(login);
+
+        assertNotNull(response.getAccessToken());
+        assertNotNull(response.getRefreshToken());
+        assertEquals("login@example.com", response.getUser().getEmail());
+    }
+
+    @Test
+    void loginThrowsOnWrongPassword() {
+        RegisterRequest reg = new RegisterRequest();
+        reg.setEmail("wrongpw@example.com");
+        reg.setPassword("correctpw");
+        reg.setName("User");
+        authService.register(reg);
+
+        LoginRequest login = new LoginRequest();
+        login.setEmail("wrongpw@example.com");
+        login.setPassword("wrongpw");
+
+        IllegalArgumentException ex = assertThrows(IllegalArgumentException.class,
+                () -> authService.login(login));
+        assertEquals("Invalid email or password", ex.getMessage());
+    }
+
+    @Test
+    void loginThrowsOnNonExistentEmail() {
+        LoginRequest login = new LoginRequest();
+        login.setEmail("nonexistent@example.com");
+        login.setPassword("password123");
+
+        IllegalArgumentException ex = assertThrows(IllegalArgumentException.class,
+                () -> authService.login(login));
+        assertEquals("Invalid email or password", ex.getMessage());
+    }
+
+    @Test
+    void loginThrowsOnOAuthUserTryingPasswordLogin() {
+        User oauthUser = User.builder()
+                .email("oauth@example.com")
+                .name("OAuth User")
+                .provider(AuthProvider.GOOGLE)
+                .providerId("google-123")
+                .build();
+        userRepository.save(oauthUser);
+
+        LoginRequest login = new LoginRequest();
+        login.setEmail("oauth@example.com");
+        login.setPassword("anypassword");
+
+        IllegalArgumentException ex = assertThrows(IllegalArgumentException.class,
+                () -> authService.login(login));
+        assertEquals("Please sign in with google", ex.getMessage());
+    }
+
+    @Test
+    void refreshTokenReturnsNewTokens() {
+        RegisterRequest reg = new RegisterRequest();
+        reg.setEmail("refresh@example.com");
+        reg.setPassword("password123");
+        reg.setName("Refresh User");
+        AuthResponse initial = authService.register(reg);
+
+        RefreshTokenRequest refreshRequest = new RefreshTokenRequest();
+        refreshRequest.setRefreshToken(initial.getRefreshToken());
+
+        AuthResponse response = authService.refreshToken(refreshRequest);
+
+        assertNotNull(response.getAccessToken());
+        assertNotNull(response.getRefreshToken());
+        assertEquals("refresh@example.com", response.getUser().getEmail());
+    }
+
+    @Test
+    void refreshTokenThrowsOnInvalidToken() {
+        RefreshTokenRequest request = new RefreshTokenRequest();
+        request.setRefreshToken("invalid-token-here");
+
+        IllegalArgumentException ex = assertThrows(IllegalArgumentException.class,
+                () -> authService.refreshToken(request));
+        assertEquals("Invalid or expired refresh token", ex.getMessage());
+    }
+
+    @Test
+    void refreshTokenThrowsWhenUserDeleted() {
+        User user = User.builder()
+                .email("deleted@example.com")
+                .name("Deleted")
+                .provider(AuthProvider.LOCAL)
+                .build();
+        userRepository.save(user);
+
+        FakeJwtConfig jwtConfig = new FakeJwtConfig();
+        String token = jwtConfig.generateRefreshToken(user);
+
+        userRepository.deleteById(user.getId());
+
+        RefreshTokenRequest request = new RefreshTokenRequest();
+        request.setRefreshToken(token);
+
+        IllegalArgumentException ex = assertThrows(IllegalArgumentException.class,
+                () -> authService.refreshToken(request));
+        assertEquals("Invalid or expired refresh token", ex.getMessage());
+    }
+}
--- a/backend/src/test/java/com/indie/service/OAuth2UserServiceTest.java
+++ b/backend/src/test/java/com/indie/service/OAuth2UserServiceTest.java
@@ -0,0 +1,129 @@
+package com.indie.service;
+
+import com.indie.model.AuthProvider;
+import com.indie.model.User;
+import com.indie.support.FakeUserRepository;
+import com.indie.support.TestOAuth2User;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class OAuth2UserServiceTest {
+
+    private FakeUserRepository userRepository;
+    private OAuth2UserService oAuth2UserService;
+
+    @BeforeEach
+    void setUp() {
+        userRepository = new FakeUserRepository();
+        oAuth2UserService = new OAuth2UserService(userRepository);
+    }
+
+    @Test
+    void getProviderIdForGoogleReturnsSub() {
+        TestOAuth2User oAuth2User = new TestOAuth2User(Map.of("sub", "google-123"));
+        assertEquals("google-123", oAuth2UserService.getProviderId(oAuth2User, AuthProvider.GOOGLE));
+    }
+
+    @Test
+    void getProviderIdForGitHubReturnsId() {
+        TestOAuth2User oAuth2User = new TestOAuth2User(Map.of("id", 456));
+        assertEquals("456", oAuth2UserService.getProviderId(oAuth2User, AuthProvider.GITHUB));
+    }
+
+    @Test
+    void getAvatarUrlForGoogleReturnsPicture() {
+        TestOAuth2User oAuth2User = new TestOAuth2User(Map.of("picture", "https://example.com/avatar.jpg"));
+        assertEquals("https://example.com/avatar.jpg",
+                oAuth2UserService.getAvatarUrl(oAuth2User, AuthProvider.GOOGLE));
+    }
+
+    @Test
+    void getAvatarUrlForGitHubReturnsAvatarUrl() {
+        TestOAuth2User oAuth2User = new TestOAuth2User(Map.of("avatar_url", "https://github.com/avatar.png"));
+        assertEquals("https://github.com/avatar.png",
+                oAuth2UserService.getAvatarUrl(oAuth2User, AuthProvider.GITHUB));
+    }
+
+    @Test
+    void getAvatarUrlForOpenIdReturnsNull() {
+        TestOAuth2User oAuth2User = new TestOAuth2User(Map.of());
+        assertNull(oAuth2UserService.getAvatarUrl(oAuth2User, AuthProvider.OPENID));
+    }
+
+    @Test
+    void getAttributeReturnsStringValue() {
+        TestOAuth2User oAuth2User = new TestOAuth2User(Map.of("email", "test@example.com"));
+        assertEquals("test@example.com", oAuth2UserService.getAttribute(oAuth2User, "email"));
+    }
+
+    @Test
+    void getAttributeReturnsNullWhenMissing() {
+        TestOAuth2User oAuth2User = new TestOAuth2User(Map.of());
+        assertNull(oAuth2UserService.getAttribute(oAuth2User, "missing"));
+    }
+
+    @Test
+    void findOrCreateUserCreatesNewUser() {
+        User user = oAuth2UserService.findOrCreateUser(
+                AuthProvider.GOOGLE, "google-789",
+                "new@example.com", "New User", "https://example.com/avatar.jpg");
+
+        assertNotNull(user.getId());
+        assertEquals("new@example.com", user.getEmail());
+        assertEquals("New User", user.getName());
+        assertEquals(AuthProvider.GOOGLE, user.getProvider());
+        assertEquals("google-789", user.getProviderId());
+        assertTrue(user.isEmailVerified());
+    }
+
+    @Test
+    void findOrCreateUserUpdatesExistingOAuthUser() {
+        User existing = User.builder()
+                .email("existing@example.com")
+                .name("Old Name")
+                .provider(AuthProvider.GOOGLE)
+                .providerId("google-456")
+                .build();
+        userRepository.save(existing);
+
+        User updated = oAuth2UserService.findOrCreateUser(
+                AuthProvider.GOOGLE, "google-456",
+                "existing@example.com", "Updated Name", "https://example.com/new-avatar.jpg");
+
+        assertEquals("Updated Name", updated.getName());
+        assertEquals("https://example.com/new-avatar.jpg", updated.getAvatarUrl());
+    }
+
+    @Test
+    void findOrCreateUserLinksLocalUserToOAuth() {
+        User localUser = User.builder()
+                .email("link@example.com")
+                .name("Link User")
+                .provider(AuthProvider.LOCAL)
+                .password("hashedpw")
+                .build();
+        userRepository.save(localUser);
+
+        User linked = oAuth2UserService.findOrCreateUser(
+                AuthProvider.GITHUB, "github-789",
+                "link@example.com", "Link User", "https://github.com/avatar.png");
+
+        assertEquals(AuthProvider.GITHUB, linked.getProvider());
+        assertEquals("github-789", linked.getProviderId());
+        assertTrue(linked.isEmailVerified());
+    }
+
+    @Test
+    void findOrCreateUserGeneratesEmailWhenMissing() {
+        User user = oAuth2UserService.findOrCreateUser(
+                AuthProvider.GITHUB, "github-nomail",
+                null, "No Email", null);
+
+        assertTrue(user.getEmail().contains("github-nomail"));
+        assertTrue(user.getEmail().endsWith("@github.indie"));
+    }
+}
--- a/backend/src/test/java/com/indie/support/FakeComponentRepository.java
+++ b/backend/src/test/java/com/indie/support/FakeComponentRepository.java
@@ -0,0 +1,40 @@
+package com.indie.support;
+
+import com.indie.model.Component;
+import com.indie.repository.ComponentRepository;
+
+import java.util.Comparator;
+import java.util.List;
+import java.util.UUID;
+
+public class FakeComponentRepository extends InMemoryRepository<Component, UUID> implements ComponentRepository {
+
+    @Override
+    protected UUID getId(Component entity) {
+        return entity.getId();
+    }
+
+    @Override
+    protected Component setId(Component entity, UUID id) {
+        entity.setId(id);
+        return entity;
+    }
+
+    @Override
+    protected UUID generateId() {
+        return UUID.randomUUID();
+    }
+
+    @Override
+    public List<Component> findByPageIdOrderByOrderIndexAsc(UUID pageId) {
+        return store.values().stream()
+                .filter(c -> c.getPageId().equals(pageId))
+                .sorted(Comparator.comparingInt(Component::getOrderIndex))
+                .toList();
+    }
+
+    @Override
+    public void deleteByPageId(UUID pageId) {
+        store.values().removeIf(c -> c.getPageId().equals(pageId));
+    }
+}
--- a/backend/src/test/java/com/indie/support/FakeJwtConfig.java
+++ b/backend/src/test/java/com/indie/support/FakeJwtConfig.java
@@ -0,0 +1,49 @@
+package com.indie.support;
+
+import com.indie.config.TokenService;
+import com.indie.model.User;
+import io.jsonwebtoken.Claims;
+import io.jsonwebtoken.Jwts;
+
+import javax.crypto.SecretKey;
+import java.util.Date;
+
+import static io.jsonwebtoken.Jwts.SIG.HS256;
+
+public class FakeJwtConfig implements TokenService {
+
+    private static final long ACCESS_EXPIRATION = 900_000;
+    private static final long REFRESH_EXPIRATION = 604_800_000;
+    private static final SecretKey SECRET_KEY = HS256.key().build();
+
+    @Override
+    public String generateAccessToken(User user) {
+        return generateToken(user, ACCESS_EXPIRATION);
+    }
+
+    @Override
+    public String generateRefreshToken(User user) {
+        return generateToken(user, REFRESH_EXPIRATION);
+    }
+
+    private String generateToken(User user, long expiration) {
+        Date now = new Date();
+        return Jwts.builder()
+                .subject(user.getId().toString())
+                .claim("email", user.getEmail())
+                .claim("name", user.getName())
+                .issuedAt(now)
+                .expiration(new Date(now.getTime() + expiration))
+                .signWith(SECRET_KEY)
+                .compact();
+    }
+
+    @Override
+    public Claims validateToken(String token) {
+        return Jwts.parser()
+                .verifyWith(SECRET_KEY)
+                .build()
+                .parseSignedClaims(token)
+                .getPayload();
+    }
+}
--- a/backend/src/test/java/com/indie/support/FakePageRepository.java
+++ b/backend/src/test/java/com/indie/support/FakePageRepository.java
@@ -0,0 +1,49 @@
+package com.indie.support;
+
+import com.indie.model.Page;
+import com.indie.repository.PageRepository;
+
+import java.util.Comparator;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+public class FakePageRepository extends InMemoryRepository<Page, UUID> implements PageRepository {
+
+    @Override
+    protected UUID getId(Page entity) {
+        return entity.getId();
+    }
+
+    @Override
+    protected Page setId(Page entity, UUID id) {
+        entity.setId(id);
+        return entity;
+    }
+
+    @Override
+    protected UUID generateId() {
+        return UUID.randomUUID();
+    }
+
+    @Override
+    public List<Page> findBySiteIdOrderByOrderIndexAsc(UUID siteId) {
+        return store.values().stream()
+                .filter(p -> p.getSiteId().equals(siteId))
+                .sorted(Comparator.comparingInt(Page::getOrderIndex))
+                .toList();
+    }
+
+    @Override
+    public Optional<Page> findBySiteIdAndSlug(UUID siteId, String slug) {
+        return store.values().stream()
+                .filter(p -> p.getSiteId().equals(siteId) && p.getSlug().equals(slug))
+                .findFirst();
+    }
+
+    @Override
+    public boolean existsBySiteIdAndSlug(UUID siteId, String slug) {
+        return store.values().stream()
+                .anyMatch(p -> p.getSiteId().equals(siteId) && p.getSlug().equals(slug));
+    }
+}
--- a/backend/src/test/java/com/indie/support/FakeSiteRepository.java
+++ b/backend/src/test/java/com/indie/support/FakeSiteRepository.java
@@ -0,0 +1,49 @@
+package com.indie.support;
+
+import com.indie.model.Site;
+import com.indie.repository.SiteRepository;
+
+import java.util.Comparator;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+public class FakeSiteRepository extends InMemoryRepository<Site, UUID> implements SiteRepository {
+
+    @Override
+    protected UUID getId(Site entity) {
+        return entity.getId();
+    }
+
+    @Override
+    protected Site setId(Site entity, UUID id) {
+        entity.setId(id);
+        return entity;
+    }
+
+    @Override
+    protected UUID generateId() {
+        return UUID.randomUUID();
+    }
+
+    @Override
+    public List<Site> findByUserIdOrderByCreatedAtDesc(UUID userId) {
+        return store.values().stream()
+                .filter(s -> s.getUserId().equals(userId))
+                .sorted(Comparator.comparing(Site::getCreatedAt).reversed())
+                .toList();
+    }
+
+    @Override
+    public Optional<Site> findBySubdomain(String subdomain) {
+        return store.values().stream()
+                .filter(s -> subdomain.equals(s.getSubdomain()))
+                .findFirst();
+    }
+
+    @Override
+    public boolean existsBySubdomain(String subdomain) {
+        return store.values().stream()
+                .anyMatch(s -> subdomain.equals(s.getSubdomain()));
+    }
+}
--- a/backend/src/test/java/com/indie/support/FakeUserRepository.java
+++ b/backend/src/test/java/com/indie/support/FakeUserRepository.java
@@ -0,0 +1,47 @@
+package com.indie.support;
+
+import com.indie.model.AuthProvider;
+import com.indie.model.User;
+import com.indie.repository.UserRepository;
+
+import java.util.Optional;
+import java.util.UUID;
+
+public class FakeUserRepository extends InMemoryRepository<User, UUID> implements UserRepository {
+
+    @Override
+    protected UUID getId(User entity) {
+        return entity.getId();
+    }
+
+    @Override
+    protected User setId(User entity, UUID id) {
+        entity.setId(id);
+        return entity;
+    }
+
+    @Override
+    protected UUID generateId() {
+        return UUID.randomUUID();
+    }
+
+    @Override
+    public Optional<User> findByEmail(String email) {
+        return store.values().stream()
+                .filter(u -> u.getEmail().equals(email))
+                .findFirst();
+    }
+
+    @Override
+    public Optional<User> findByProviderAndProviderId(AuthProvider provider, String providerId) {
+        return store.values().stream()
+                .filter(u -> u.getProvider() == provider && providerId.equals(u.getProviderId()))
+                .findFirst();
+    }
+
+    @Override
+    public boolean existsByEmail(String email) {
+        return store.values().stream()
+                .anyMatch(u -> u.getEmail().equals(email));
+    }
+}
--- a/backend/src/test/java/com/indie/support/InMemoryRepository.java
+++ b/backend/src/test/java/com/indie/support/InMemoryRepository.java
@@ -0,0 +1,209 @@
+package com.indie.support;
+
+import org.springframework.data.domain.Example;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.repository.query.FluentQuery;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.function.Function;
+
+public abstract class InMemoryRepository<T, ID> implements JpaRepository<T, ID> {
+
+    protected final Map<ID, T> store = new ConcurrentHashMap<>();
+
+    protected abstract ID getId(T entity);
+
+    protected abstract T setId(T entity, ID id);
+
+    protected abstract ID generateId();
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public <S extends T> S save(S entity) {
+        ID id = getId(entity);
+        if (id == null) {
+            id = generateId();
+            setId(entity, id);
+        }
+        store.put(id, entity);
+        return entity;
+    }
+
+    @Override
+    public <S extends T> List<S> saveAll(Iterable<S> entities) {
+        List<S> saved = new ArrayList<>();
+        for (S entity : entities) {
+            saved.add(save(entity));
+        }
+        return saved;
+    }
+
+    @Override
+    public Optional<T> findById(ID id) {
+        return Optional.ofNullable(store.get(id));
+    }
+
+    @Override
+    public boolean existsById(ID id) {
+        return store.containsKey(id);
+    }
+
+    @Override
+    public List<T> findAll() {
+        return new ArrayList<>(store.values());
+    }
+
+    @Override
+    public List<T> findAllById(Iterable<ID> ids) {
+        List<T> result = new ArrayList<>();
+        for (ID id : ids) {
+            T entity = store.get(id);
+            if (entity != null) {
+                result.add(entity);
+            }
+        }
+        return result;
+    }
+
+    @Override
+    public long count() {
+        return store.size();
+    }
+
+    @Override
+    public void deleteById(ID id) {
+        store.remove(id);
+    }
+
+    @Override
+    public void delete(T entity) {
+        ID id = getId(entity);
+        if (id != null) {
+            store.remove(id);
+        }
+    }
+
+    @Override
+    public void deleteAll(Iterable<? extends T> entities) {
+        for (T entity : entities) {
+            delete(entity);
+        }
+    }
+
+    @Override
+    public void deleteAllById(Iterable<? extends ID> ids) {
+        for (ID id : ids) {
+            store.remove(id);
+        }
+    }
+
+    @Override
+    public void deleteAll() {
+        store.clear();
+    }
+
+    @Override
+    public void deleteAllInBatch() {
+        store.clear();
+    }
+
+    @Override
+    public void deleteAllInBatch(Iterable<T> entities) {
+        for (T entity : entities) {
+            delete(entity);
+        }
+    }
+
+    @Override
+    public void deleteAllByIdInBatch(Iterable<ID> ids) {
+        for (ID id : ids) {
+            store.remove(id);
+        }
+    }
+
+    @Override
+    public void flush() {
+    }
+
+    @Override
+    public <S extends T> S saveAndFlush(S entity) {
+        return save(entity);
+    }
+
+    @Override
+    public <S extends T> List<S> saveAllAndFlush(Iterable<S> entities) {
+        return saveAll(entities);
+    }
+
+    @Override
+    public List<T> findAll(Sort sort) {
+        throw new UnsupportedOperationException("Not implemented in fake");
+    }
+
+    @Override
+    public Page<T> findAll(Pageable pageable) {
+        throw new UnsupportedOperationException("Not implemented in fake");
+    }
+
+    @Override
+    public T getReferenceById(ID id) {
+        return store.get(id);
+    }
+
+    @Override
+    public T getById(ID id) {
+        return store.get(id);
+    }
+
+    @Override
+    @Deprecated
+    public T getOne(ID id) {
+        return store.get(id);
+    }
+
+    @Override
+    public <S extends T> Optional<S> findOne(Example<S> example) {
+        throw new UnsupportedOperationException("Not implemented in fake");
+    }
+
+    @Override
+    public <S extends T> List<S> findAll(Example<S> example) {
+        throw new UnsupportedOperationException("Not implemented in fake");
+    }
+
+    @Override
+    public <S extends T> List<S> findAll(Example<S> example, Sort sort) {
+        throw new UnsupportedOperationException("Not implemented in fake");
+    }
+
+    @Override
+    public <S extends T> Page<S> findAll(Example<S> example, Pageable pageable) {
+        throw new UnsupportedOperationException("Not implemented in fake");
+    }
+
+    @Override
+    public <S extends T> long count(Example<S> example) {
+        throw new UnsupportedOperationException("Not implemented in fake");
+    }
+
+    @Override
+    public <S extends T> boolean exists(Example<S> example) {
+        throw new UnsupportedOperationException("Not implemented in fake");
+    }
+
+    @Override
+    public <S extends T, R> R findBy(Example<S> example, Function<FluentQuery.FetchableFluentQuery<S>, R> queryFunction) {
+        throw new UnsupportedOperationException("Not implemented in fake");
+    }
+
+    public void clear() {
+        store.clear();
+    }
+}
--- a/backend/src/test/java/com/indie/support/StubPasswordEncoder.java
+++ b/backend/src/test/java/com/indie/support/StubPasswordEncoder.java
@@ -0,0 +1,18 @@
+package com.indie.support;
+
+import org.springframework.security.crypto.password.PasswordEncoder;
+
+public class StubPasswordEncoder implements PasswordEncoder {
+
+    private static final String PREFIX = "{stub}";
+
+    @Override
+    public String encode(CharSequence rawPassword) {
+        return PREFIX + rawPassword;
+    }
+
+    @Override
+    public boolean matches(CharSequence rawPassword, String encodedPassword) {
+        return encodedPassword.equals(PREFIX + rawPassword);
+    }
+}
--- a/backend/src/test/java/com/indie/support/TestOAuth2User.java
+++ b/backend/src/test/java/com/indie/support/TestOAuth2User.java
@@ -0,0 +1,38 @@
+package com.indie.support;
+
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+import org.springframework.security.oauth2.core.user.OAuth2User;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+public class TestOAuth2User implements OAuth2User {
+
+    private final Map<String, Object> attributes;
+
+    public TestOAuth2User(Map<String, Object> attributes) {
+        this.attributes = attributes;
+    }
+
+    @Override
+    public Map<String, Object> getAttributes() {
+        return attributes;
+    }
+
+    @Override
+    public Collection<? extends GrantedAuthority> getAuthorities() {
+        return List.of(new SimpleGrantedAuthority("ROLE_USER"));
+    }
+
+    @Override
+    public String getName() {
+        Object sub = attributes.get("sub");
+        if (sub != null) return sub.toString();
+        Object id = attributes.get("id");
+        if (id != null) return id.toString();
+        return "test-user";
+    }
+}
--- a/backend/src/test/java/com/indie/support/TestSecurityConfig.java
+++ b/backend/src/test/java/com/indie/support/TestSecurityConfig.java
@@ -0,0 +1,21 @@
+package com.indie.support;
+
+import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
+import org.springframework.security.config.http.SessionCreationPolicy;
+import org.springframework.security.web.SecurityFilterChain;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+
+@TestConfiguration
+public class TestSecurityConfig {
+
+    @Bean
+    public SecurityFilterChain testFilterChain(HttpSecurity http) throws Exception {
+        http
+                .csrf(AbstractHttpConfigurer::disable)
+                .authorizeHttpRequests(auth -> auth.anyRequest().permitAll())
+                .sessionManagement(sm -> sm.sessionCreationPolicy(SessionCreationPolicy.STATELESS));
+        return http.build();
+    }
+}
--- a/backend/src/test/resources/application.yml
+++ b/backend/src/test/resources/application.yml
@@ -0,0 +1,16 @@
+spring:
+  datasource:
+    url: jdbc:h2:mem:testdb;MODE=PostgreSQL;DATABASE_TO_LOWER=TRUE
+    driver-class-name: org.h2.Driver
+    username: sa
+    password:
+  jpa:
+    hibernate:
+      ddl-auto: create-drop
+    properties:
+      hibernate:
+        dialect: org.hibernate.dialect.H2Dialect
+        hbm2ddl:
+          create_namespaces: true
+    show-sql: true
+    open-in-view: false