.github/workflows/build.yaml

@@ -0,0 +1,54 @@
+name: Build & Test
+
+on:
+  workflow_call:
+    outputs:
+      artifact-name:
+        description: "Uploaded artifact name for downstream jobs"
+        value: ${{ jobs.build.outputs.artifact-name }}
+
+jobs:
+  build:
+    name: Build & Test
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    permissions:
+      contents: read
+    outputs:
+      artifact-name: ${{ steps.meta.outputs.artifact-name }}
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@v6
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v5
+        with:
+          distribution: temurin
+          java-version: "21"
+          cache: gradle
+
+      - name: Set up Gradle
+        uses: gradle/actions/setup-gradle@v6
+
+      - name: Run CI quality gate
+        run: ./gradlew clean check bootJar --stacktrace --no-daemon
+
+      - name: Set artifact name
+        id: meta
+        run: echo "artifact-name=build-${{ github.run_id }}-${{ github.run_attempt }}" >> "$GITHUB_OUTPUT"
+
+      - name: Upload build artifacts
+        if: always()
+        uses: actions/upload-artifact@v7
+        with:
+          name: ${{ steps.meta.outputs.artifact-name }}
+          path: |
+            build/libs/*.jar
+            build/reports/detekt/**
+            build/reports/ktlint/**
+            build/reports/jacoco/**
+            build/reports/**
+            build/test-results/**
+            build/jacoco/**
+          retention-days: 7
+          if-no-files-found: error

.github/workflows/ci.yaml

@@ -0,0 +1,86 @@
+name: CI
+run-name: "${{ github.ref_name }} - ${{ github.event_name }} by @${{ github.actor }}"
+
+on:
+  push:
+    branches: [develop, main]
+    tags: ["v*"]
+  pull_request:
+    branches: [develop, main]
+
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  trufflehog:
+    name: TruffleHog Secret Scan
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+      - name: Run TruffleHog
+        uses: trufflesecurity/trufflehog@main
+        with:
+          extra_args: --results=verified,unknown
+
+  build:
+    name: Build & Test
+    needs: [trufflehog]
+    uses: ./.github/workflows/build.yaml
+
+  docker:
+    name: Docker
+    needs: build
+    if: github.event_name == 'pull_request' || github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/')
+    uses: ./.github/workflows/docker.yaml
+    permissions:
+      contents: read
+      packages: write
+    with:
+      push: ${{ github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/') }}
+    secrets: inherit
+
+  notify-main:
+    name: Notify Main Build
+    needs: docker
+    if: github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Send Telegram notification
+        env:
+          TOKEN: ${{ secrets.TELEGRAM_BOT_TOKEN }}
+          CHAT_ID: ${{ secrets.TELEGRAM_CHAT_ID }}
+          REPO: ${{ github.repository }}
+          SHA: ${{ github.sha }}
+          DIGEST: ${{ needs.docker.outputs.image-digest }}
+        run: |
+          COMMIT_URL="https://github.com/${REPO}/commit/${SHA}"
+          MSG="*${REPO}* - main branch CI succeeded"
+          MSG="${MSG}%0A🔗 [Commit](${COMMIT_URL})"
+          if [ -n "${DIGEST}" ]; then
+            MSG="${MSG}%0AImage: \`ghcr.io/${REPO}@${DIGEST}\`"
+          fi
+          curl -sf -X POST \
+            "https://api.telegram.org/bot${TOKEN}/sendMessage" \
+            -d "chat_id=${CHAT_ID}" \
+            -d "parse_mode=Markdown" \
+            -d "text=${MSG}"
+
+  release:
+    name: Release
+    needs: docker
+    if: startsWith(github.ref, 'refs/tags/v')
+    permissions:
+      contents: write
+    uses: ./.github/workflows/release.yaml
+    with:
+      version: ${{ github.ref_name }}
+      image-digest: ${{ needs.docker.outputs.image-digest }}
+    secrets: inherit

.github/workflows/docker.yaml

@@ -0,0 +1,77 @@
+name: Docker Build & Push
+
+on:
+  workflow_call:
+    inputs:
+      push:
+        description: "Push image to GHCR"
+        type: boolean
+        required: true
+    outputs:
+      image-digest:
+        description: "Pushed image digest (sha256:…)"
+        value: ${{ jobs.docker.outputs.image-digest }}
+      image-tags:
+        description: "Comma-separated list of applied tags"
+        value: ${{ jobs.docker.outputs.image-tags }}
+
+jobs:
+  docker:
+    name: Docker Build & Push
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    outputs:
+      image-digest: ${{ steps.build-push.outputs.digest }}
+      image-tags: ${{ steps.meta.outputs.tags }}
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@v6
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v4
+
+      - name: Build image (no push)
+        if: inputs.push == false
+        uses: docker/build-push-action@v7
+        with:
+          context: .
+          file: ./Containerfile
+          push: false
+          provenance: false
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Log in to GHCR
+        if: inputs.push == true
+        uses: docker/login-action@v4
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract Docker metadata
+        if: inputs.push == true
+        id: meta
+        uses: docker/metadata-action@v6
+        with:
+          images: ghcr.io/${{ github.repository }}
+          tags: |
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=ref,event=branch
+            type=ref,event=pr
+            type=sha,prefix=sha-
+
+      - name: Build and push image
+        if: inputs.push == true
+        id: build-push
+        uses: docker/build-push-action@v7
+        with:
+          context: .
+          file: ./Containerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          provenance: false
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

.github/workflows/release.yaml

@@ -0,0 +1,58 @@
+name: Release & Notify
+
+on:
+  workflow_call:
+    inputs:
+      version:
+        description: "Tag name, e.g. v1.2.3"
+        type: string
+        required: true
+      image-digest:
+        description: "Docker image digest from docker job"
+        type: string
+        required: false
+        default: ""
+    secrets:
+      TELEGRAM_BOT_TOKEN:
+        required: true
+      TELEGRAM_CHAT_ID:
+        required: true
+
+jobs:
+  release:
+    name: GitHub Release
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - name: Create GitHub Release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+        run: |
+          if gh release view "${{ inputs.version }}" >/dev/null 2>&1; then
+            echo "Release ${{ inputs.version }} already exists. Skipping creation."
+          else
+            gh release create "${{ inputs.version }}" \
+              --generate-notes \
+              --title "${{ inputs.version }}"
+          fi
+
+      - name: Send Telegram notification
+        env:
+          TOKEN: ${{ secrets.TELEGRAM_BOT_TOKEN }}
+          CHAT_ID: ${{ secrets.TELEGRAM_CHAT_ID }}
+          VERSION: ${{ inputs.version }}
+          REPO: ${{ github.repository }}
+          DIGEST: ${{ inputs.image-digest }}
+        run: |
+          RELEASE_URL="https://github.com/${REPO}/releases/tag/${VERSION}"
+          MSG="*${REPO}* - released *${VERSION}*"
+          MSG="${MSG}%0A🔗 [Release notes](${RELEASE_URL})"
+          if [ -n "${DIGEST}" ]; then
+            MSG="${MSG}%0AImage: \`ghcr.io/${REPO}@${DIGEST}\`"
+          fi
+          curl -sf -X POST \
+            "https://api.telegram.org/bot${TOKEN}/sendMessage" \
+            -d "chat_id=${CHAT_ID}" \
+            -d "parse_mode=Markdown" \
+            -d "text=${MSG}"

.gitignore

@@ -42,6 +42,9 @@ gradle-app.setting
 *.tar.gz
 *.rar
 
+# Gradle wrapper
+!gradle/wrapper/gradle-wrapper.jar
+
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
 replay_pid*

.idea/kotlinc.xml

@@ -2,6 +2,6 @@
 <project version="4">
   <component name="KotlinJpsPluginSettings">
     <option name="externalSystemId" value="Gradle" />
-    <option name="version" value="2.1.20" />
+    <option name="version" value="2.0.21" />
   </component>
 </project>

Containerfile

@@ -26,13 +26,7 @@ RUN --mount=type=cache,target=${GRADLE_USER_HOME} \
 COPY src src
 
 RUN --mount=type=cache,target=${GRADLE_USER_HOME} \
-    ./gradlew --no-daemon build \
-      -x test \
-      -x detekt \
-      -x ktlintCheck \
-      -x ktlintKotlinScriptCheck \
-      -x ktlintMainSourceSetCheck \
-      -x ktlintTestSourceSetCheck
+    ./gradlew --no-daemon bootJar
 
 RUN mkdir -p ${APP_HOME}/dist \
     && cp ${APP_HOME}/build/libs/*.jar ${APP_HOME}/dist/${JAR_NAME} \
@@ -60,6 +54,7 @@ COPY --from=builder --chown=app:app /workspace/dist/app.jar /app/app.jar
 USER app
 
 ENV JAVA_OPTS="-Xms256m -Xmx512m -XX:+UseG1GC" \
+    SPRING_AOT_ENABLED=true \
     SERVER_PORT=8080 \
     PATH="/app:$PATH"
 
@@ -70,4 +65,4 @@ HEALTHCHECK --interval=30s --timeout=3s --start-period=30s --retries=3 \
 
 STOPSIGNAL SIGTERM
 
-ENTRYPOINT ["sh", "-c", "exec java ${JAVA_OPTS} -Dserver.port=${SERVER_PORT} -jar /app/app.jar"]
+ENTRYPOINT ["sh", "-c", "exec java ${JAVA_OPTS} -Dspring.aot.enabled=${SPRING_AOT_ENABLED} -Dserver.port=${SERVER_PORT} -jar /app/app.jar"]

build.gradle.kts

@@ -15,6 +15,8 @@ plugins {
     jacoco
 }
 
+apply(plugin = "org.springframework.boot.aot")
+
 apply(from = "$rootDir/gradle/docker.gradle.kts")
 
 group = "com.project"
@@ -56,6 +58,7 @@ dependencies {
     testImplementation(libs.spring.boot.starter.test)
     testImplementation(libs.kotlin.test.junit5)
     testImplementation(libs.spring.grpc.test)
+    testImplementation(libs.mockk)
     testRuntimeOnly(libs.junit.platform.launcher)
 }
 

gradle/libs.versions.toml

@@ -11,6 +11,7 @@ spring-grpc = "1.0.1"
 protoc = "3.25.1"
 grpc-java = "1.60.0"
 springdoc = "2.8.6"
+mockk = "1.13.12"
 
 [libraries]
 spring-boot-starter-web = { module = "org.springframework.boot:spring-boot-starter-web" }
@@ -33,6 +34,7 @@ flyway-database-postgresql = { module = "org.flywaydb:flyway-database-postgresql
 kotlin-reflect = { module = "org.jetbrains.kotlin:kotlin-reflect" }
 kotlin-test-junit5 = { module = "org.jetbrains.kotlin:kotlin-test-junit5" }
 junit-platform-launcher = { module = "org.junit.platform:junit-platform-launcher" }
+mockk = { module = "io.mockk:mockk", version.ref = "mockk" }
 
 sentry-bom = { module = "io.sentry:sentry-bom", version.ref = "sentry" }
 sentry-spring-boot-starter = { module = "io.sentry:sentry-spring-boot-starter-jakarta" }

src/main/kotlin/com/project/movienight/adapters/persistence/entity/UserEntity.kt

@@ -0,0 +1,37 @@
+package com.project.movienight.adapters.persistence.entity
+
+import com.project.movienight.domain.model.AuthProvider
+import com.project.movienight.domain.model.User
+import java.time.LocalDateTime
+import java.util.UUID
+
+data class UserEntity(
+    val id: UUID,
+    val name: String,
+    val email: String,
+    val provider: String?,
+    val providerId: String?,
+    val createdAt: LocalDateTime,
+)
+
+fun UserEntity.toDomain(): User =
+    User(
+        id = id,
+        name = name,
+        email = email,
+        library = null,
+    )
+
+fun User.toEntity(
+    provider: AuthProvider? = null,
+    providerId: String? = null,
+    createdAt: LocalDateTime = LocalDateTime.now(),
+): UserEntity =
+    UserEntity(
+        id = id,
+        name = name,
+        email = email,
+        provider = provider?.name,
+        providerId = providerId,
+        createdAt = createdAt,
+    )

src/main/kotlin/com/project/movienight/adapters/persistence/jdbc/UserRepository.kt

@@ -1,6 +1,10 @@
 package com.project.movienight.adapters.persistence.jdbc
 
+import com.project.movienight.adapters.persistence.entity.UserEntity
+import com.project.movienight.adapters.persistence.entity.toDomain
+import com.project.movienight.adapters.persistence.entity.toEntity
 import com.project.movienight.application.ports.output.UserRepositoryPort
+import com.project.movienight.domain.model.AuthProvider
 import com.project.movienight.domain.model.User
 import org.springframework.jdbc.core.JdbcTemplate
 import org.springframework.stereotype.Repository
@@ -11,58 +15,80 @@ import java.util.UUID
 class UserRepository(
     private val jdbc: JdbcTemplate,
 ) : UserRepositoryPort {
-    private val userRowMapper = { rs: ResultSet, _: Int ->
-        User(
+    private val userEntityRowMapper = { rs: ResultSet, _: Int ->
+        UserEntity(
             id = UUID.fromString(rs.getString("id")),
             name = rs.getString("name"),
             email = rs.getString("email"),
-            library = null,
+            provider = rs.getString("provider"),
+            providerId = rs.getString("provider_id"),
+            createdAt = rs.getTimestamp("created_at").toLocalDateTime(),
         )
     }
 
     override fun save(user: User): User {
+        val entity = user.toEntity()
         val updatedRows =
             jdbc.update(
                 """
                 UPDATE users
-                SET name = ?, email = ?
+                SET name = ?, email = ?, provider = ?, provider_id = ?
                 WHERE id = ?
                 """.trimIndent(),
-                user.name,
-                user.email,
-                user.id,
+                entity.name,
+                entity.email,
+                entity.provider,
+                entity.providerId,
+                entity.id,
             )
         if (updatedRows == 0) {
             jdbc.update(
                 """
-                INSERT INTO users (id, name, email)
-                VALUES (?, ?, ?)
+                INSERT INTO users (id, name, email, provider, provider_id, created_at)
+                VALUES (?, ?, ?, ?, ?, ?)
                 """.trimIndent(),
-                user.id,
-                user.name,
-                user.email,
+                entity.id,
+                entity.name,
+                entity.email,
+                entity.provider,
+                entity.providerId,
+                entity.createdAt,
             )
         }
         return user
     }
 
     override fun findById(id: UUID): User? {
-        val users =
+        val entities =
             jdbc.query(
-                "SELECT id, name, email FROM users WHERE id = ?",
-                userRowMapper,
+                "SELECT id, name, email, provider, provider_id, created_at FROM users WHERE id = ?",
+                userEntityRowMapper,
                 id,
             )
-        return users.firstOrNull()
+        return entities.firstOrNull()?.toDomain()
     }
 
     override fun findAll(): List<User> =
         jdbc.query(
-            "SELECT id, name, email FROM users",
-            userRowMapper,
-        )
+            "SELECT id, name, email, provider, provider_id, created_at FROM users",
+            userEntityRowMapper,
+        ).map { it.toDomain() }
 
     override fun deleteById(id: UUID) {
         jdbc.update("DELETE FROM users WHERE id = ?", id)
     }
+
+    override fun findByProviderAndProviderId(
+        provider: AuthProvider,
+        providerId: String,
+    ): User? {
+        val entities =
+            jdbc.query(
+                "SELECT id, name, email, provider, provider_id, created_at FROM users WHERE provider = ? AND provider_id = ?",
+                userEntityRowMapper,
+                provider.name,
+                providerId,
+            )
+        return entities.firstOrNull()?.toDomain()
+    }
 }

src/main/kotlin/com/project/movienight/adapters/web/FilmController.kt

@@ -57,11 +57,10 @@ class FilmController(
         FilmResponse.fromDomain(
             editFilmUseCase.edit(
                 id = id,
-                command =
-                    EditFilmCommand(
-                        title = request.title,
-                        description = request.description,
-                    ),
+                command = EditFilmCommand(
+                    title = request.title,
+                    description = request.description,
+                ),
             ),
         )
 

src/main/kotlin/com/project/movienight/adapters/web/UserController.kt

@@ -8,8 +8,11 @@ import com.project.movienight.application.ports.input.CreateUserUseCase
 import com.project.movienight.application.ports.input.DeleteUserUseCase
 import com.project.movienight.application.ports.input.EditUserCommand
 import com.project.movienight.application.ports.input.EditUserUseCase
+import com.project.movienight.application.ports.input.GetAllUsersUseCase
+import com.project.movienight.application.ports.input.GetUserByIdUseCase
 import org.springframework.http.HttpStatus
 import org.springframework.web.bind.annotation.DeleteMapping
+import org.springframework.web.bind.annotation.GetMapping
 import org.springframework.web.bind.annotation.PatchMapping
 import org.springframework.web.bind.annotation.PathVariable
 import org.springframework.web.bind.annotation.PostMapping
@@ -25,6 +28,8 @@ class UserController(
     private val createUserUseCase: CreateUserUseCase,
     private val editUserUseCase: EditUserUseCase,
     private val deleteUserUseCase: DeleteUserUseCase,
+    private val getUserByIdUseCase: GetUserByIdUseCase,
+    private val getAllUsersUseCase: GetAllUsersUseCase,
 ) {
     @PostMapping
     @ResponseStatus(HttpStatus.CREATED)
@@ -40,6 +45,16 @@ class UserController(
             ),
         )
 
+    @GetMapping
+    fun getAll(): List<UserResponse> =
+        getAllUsersUseCase.getAll().map { UserResponse.fromDomain(it) }
+
+    @GetMapping("/{id}")
+    fun getById(
+        @PathVariable id: UUID,
+    ): UserResponse =
+        UserResponse.fromDomain(getUserByIdUseCase.getById(id))
+
     @PatchMapping("/{id}")
     fun edit(
         @PathVariable id: UUID,
@@ -48,10 +63,9 @@ class UserController(
         UserResponse.fromDomain(
             editUserUseCase.edit(
                 id = id,
-                command =
-                    EditUserCommand(
-                        name = request.name,
-                    ),
+                command = EditUserCommand(
+                    name = request.name,
+                ),
             ),
         )
 

src/main/kotlin/com/project/movienight/application/ports/input/UserUseCase.kt

@@ -26,3 +26,11 @@ data class EditUserCommand(
 interface DeleteUserUseCase {
     fun delete(id: UUID)
 }
+
+interface GetUserByIdUseCase {
+    fun getById(id: UUID): User
+}
+
+interface GetAllUsersUseCase {
+    fun getAll(): List<User>
+}

src/main/kotlin/com/project/movienight/application/ports/output/UserRepositoryPort.kt

@@ -1,5 +1,6 @@
 package com.project.movienight.application.ports.output
 
+import com.project.movienight.domain.model.AuthProvider
 import com.project.movienight.domain.model.User
 import java.util.UUID
 
@@ -11,4 +12,9 @@ interface UserRepositoryPort {
     fun findAll(): List<User>
 
     fun deleteById(id: UUID)
+
+    fun findByProviderAndProviderId(
+        provider: AuthProvider,
+        providerId: String,
+    ): User?
 }

src/main/kotlin/com/project/movienight/application/services/FilmService.kt

@@ -36,19 +36,15 @@ class FilmService(
             throw BlockedValueException(target = "Film", field = "description")
         }
 
-        val film =
-            Film(
-                id = idGenerator.generateId(),
-                title = command.title,
-                description = command.description,
-            )
+        val film = Film(
+            id = idGenerator.generateId(),
+            title = command.title,
+            description = command.description,
+        )
         return filmRepository.save(film)
     }
 
-    override fun edit(
-        id: UUID,
-        command: EditFilmCommand,
-    ): Film {
+    override fun edit(id: UUID, command: EditFilmCommand): Film {
         if (filmConfig.isBlocked(command.title)) {
             throw BlockedValueException(target = "Film", field = "title")
         }

src/main/kotlin/com/project/movienight/application/services/UserService.kt

@@ -5,6 +5,8 @@ import com.project.movienight.application.ports.input.CreateUserUseCase
 import com.project.movienight.application.ports.input.DeleteUserUseCase
 import com.project.movienight.application.ports.input.EditUserCommand
 import com.project.movienight.application.ports.input.EditUserUseCase
+import com.project.movienight.application.ports.input.GetAllUsersUseCase
+import com.project.movienight.application.ports.input.GetUserByIdUseCase
 import com.project.movienight.application.ports.output.IdGenerator
 import com.project.movienight.application.ports.output.UserRepositoryPort
 import com.project.movienight.config.UserServiceProperties
@@ -21,19 +23,21 @@ class UserService(
     private val userConfig: UserServiceProperties,
 ) : CreateUserUseCase,
     EditUserUseCase,
-    DeleteUserUseCase {
+    DeleteUserUseCase,
+    GetUserByIdUseCase,
+    GetAllUsersUseCase {
+
     override fun create(command: CreateUserCommand): User {
         if (userConfig.isBlocked(command.name)) {
             throw BlockedValueException(target = "User", field = "name")
         }
 
-        val user =
-            User(
-                id = idGenerator.generateId(),
-                name = command.name,
-                email = command.email,
-                library = null,
-            )
+        val user = User(
+            id = idGenerator.generateId(),
+            name = command.name,
+            email = command.email,
+            library = null,
+        )
         return userRepository.save(user)
     }
 
@@ -46,15 +50,18 @@ class UserService(
         }
 
         var user = userRepository.findById(id) ?: throw EntityNotFoundException(entity = "User", id = id.toString())
-
         user = user.copy(name = command.name)
-
         return userRepository.save(user)
     }
 
     override fun delete(id: UUID) {
         userRepository.findById(id) ?: throw EntityNotFoundException(entity = "User", id = id.toString())
-
         userRepository.deleteById(id)
     }
+
+    override fun getById(id: UUID): User {
+        return userRepository.findById(id) ?: throw EntityNotFoundException(entity = "User", id = id.toString())
+    }
+
+    override fun getAll(): List<User> = userRepository.findAll()
 }

src/main/kotlin/com/project/movienight/domain/model/AuthProvider.kt

@@ -0,0 +1,7 @@
+package com.project.movienight.domain.model
+
+enum class AuthProvider {
+    GOOGLE,
+    YANDEX,
+    VK,
+}

src/test/kotlin/com/project/movienight/adapters/persistence/entity/UserEntityMappingTest.kt

@@ -0,0 +1,81 @@
+package com.project.movienight.adapters.persistence.entity
+
+import com.project.movienight.domain.model.AuthProvider
+import com.project.movienight.domain.model.User
+import org.junit.jupiter.api.Test
+import java.time.LocalDateTime
+import java.util.UUID
+import kotlin.test.assertEquals
+import kotlin.test.assertNull
+
+class UserEntityMappingTest {
+
+    @Test
+    fun `toDomain maps UserEntity correctly`() {
+        val entity = UserEntity(
+            id = UUID.randomUUID(),
+            name = "John Pork",
+            email = "john@email.com",
+            provider = "GOOGLE",
+            providerId = "google1234",
+            createdAt = LocalDateTime.now(),
+        )
+        val user = entity.toDomain()
+
+        assertEquals(entity.id, user.id)
+        assertEquals(entity.name, user.name)
+        assertEquals(entity.email, user.email)
+        assertNull(user.library)
+    }
+
+    @Test
+    fun `toEntity maps User with OAuth provider`() {
+        val user = User(
+            id = UUID.randomUUID(),
+            name = "Jane",
+            email = "jane@mail.com",
+            library = null
+        )
+
+        val entity = user.toEntity(AuthProvider.YANDEX, "yandex456")
+
+        assertEquals(user.id, entity.id)
+        assertEquals(user.name, entity.name)
+        assertEquals(user.email, entity.email)
+        assertEquals("YANDEX", entity.provider)
+        assertEquals("yandex456", entity.providerId)
+    }
+
+    @Test
+    fun `toEntity maps User without OAuth provider`() {
+        val user = User(
+            id = UUID.randomUUID(),
+            name = "Bob",
+            email = "bob@mail.com",
+            library = null
+        )
+
+        val entity = user.toEntity()
+
+        assertNull(entity.provider)
+        assertNull(entity.providerId)
+    }
+
+    @Test
+    fun `mapping is reversible for basic fields`() {
+        val original = User(
+            id = UUID.randomUUID(),
+            name = "Alice",
+            email = "alice@email.com",
+            library = null
+        )
+
+        val mapped = original.toEntity().toDomain()
+
+        assertEquals(original.id, mapped.id)
+        assertEquals(original.name, mapped.name)
+        assertEquals(original.email, mapped.email)
+    }
+
+
+}

src/test/kotlin/com/project/movienight/adapters/persistence/jdbc/FilmLibraryRepositoryIntegrationTest.kt

@@ -0,0 +1,220 @@
+package com.project.movienight.adapters.persistence.jdbc
+
+import com.project.movienight.domain.model.Film
+import com.project.movienight.domain.model.FilmLibrary
+import com.project.movienight.domain.model.User
+import org.junit.jupiter.api.AfterEach
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertFalse
+import org.junit.jupiter.api.Assertions.assertNotNull
+import org.junit.jupiter.api.Assertions.assertNull
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.jdbc.core.JdbcTemplate
+import org.springframework.test.context.ActiveProfiles
+import java.util.UUID
+
+@SpringBootTest
+@ActiveProfiles("test")
+class FilmLibraryRepositoryIntegrationTest {
+    @Autowired
+    private lateinit var filmLibraryRepository: FilmLibraryRepository
+
+    @Autowired
+    private lateinit var userRepository: UserRepository
+
+    @Autowired
+    private lateinit var filmRepository: FilmRepository
+
+    @Autowired
+    private lateinit var jdbcTemplate: JdbcTemplate
+
+    private lateinit var testUser: User
+    private lateinit var testFilm: Film
+
+    @BeforeEach
+    fun setup() {
+        cleanDatabase()
+        createTestData()
+    }
+
+    @AfterEach
+    fun cleanup() {
+        cleanDatabase()
+    }
+
+    private fun cleanDatabase() {
+        jdbcTemplate.execute("DELETE FROM favorites")
+        jdbcTemplate.execute("DELETE FROM films")
+        jdbcTemplate.execute("DELETE FROM users")
+    }
+
+    private fun createTestData() {
+        testUser = User(UUID.randomUUID(), "Иван Иванов", "ivan@example.com", null)
+        testFilm = Film(UUID.randomUUID(), "Начало", "Захватывающий триллер")
+        userRepository.save(testUser)
+        filmRepository.save(testFilm)
+    }
+
+    @Test
+    fun `should save new film library entry and return saved entry`() {
+        val entry =
+            FilmLibrary(
+                id = UUID.randomUUID(),
+                userId = testUser.id,
+                filmId = testFilm.id,
+                comment = "Отличный фильм!",
+                isViewed = false,
+            )
+
+        val savedEntry = filmLibraryRepository.save(entry)
+
+        assertNotNull(savedEntry)
+        assertEquals(entry.id, savedEntry.id)
+        assertEquals(entry.userId, savedEntry.userId)
+        assertEquals(entry.filmId, savedEntry.filmId)
+        assertEquals(entry.comment, savedEntry.comment)
+        assertEquals(entry.isViewed, savedEntry.isViewed)
+    }
+
+    @Test
+    fun `should update existing film library entry`() {
+        val entryId = UUID.randomUUID()
+        val originalEntry = FilmLibrary(entryId, testUser.id, testFilm.id, "Хочу посмотреть", false)
+        filmLibraryRepository.save(originalEntry)
+
+        val updatedEntry = FilmLibrary(entryId, testUser.id, testFilm.id, "Уже посмотрел, потрясающе!", true)
+        val result = filmLibraryRepository.save(updatedEntry)
+
+        assertEquals(entryId, result.id)
+        assertEquals("Уже посмотрел, потрясающе!", result.comment)
+        assertTrue(result.isViewed)
+
+        val foundEntry = filmLibraryRepository.findById(entryId)
+        assertNotNull(foundEntry)
+        assertEquals("Уже посмотрел, потрясающе!", foundEntry?.comment)
+        assertTrue(foundEntry?.isViewed ?: false)
+    }
+
+    @Test
+    fun `should find film library entry by id`() {
+        val entry = FilmLibrary(UUID.randomUUID(), testUser.id, testFilm.id, "Обязательно посмотреть", false)
+        filmLibraryRepository.save(entry)
+
+        val foundEntry = filmLibraryRepository.findById(entry.id)
+
+        assertNotNull(foundEntry)
+        assertEquals(entry.id, foundEntry?.id)
+        assertEquals(entry.userId, foundEntry?.userId)
+        assertEquals(entry.filmId, foundEntry?.filmId)
+        assertEquals(entry.comment, foundEntry?.comment)
+        assertEquals(entry.isViewed, foundEntry?.isViewed)
+    }
+
+    @Test
+    fun `should return null when film library entry not found by id`() {
+        val nonExistentId = UUID.randomUUID()
+
+        val foundEntry = filmLibraryRepository.findById(nonExistentId)
+
+        assertNull(foundEntry)
+    }
+
+    @Test
+    fun `should find all film library entries`() {
+        val entry1 = FilmLibrary(UUID.randomUUID(), testUser.id, testFilm.id, "Комментарий 1", false)
+        val entry2 = FilmLibrary(UUID.randomUUID(), testUser.id, testFilm.id, "Комментарий 2", true)
+        val entry3 = FilmLibrary(UUID.randomUUID(), testUser.id, testFilm.id, null, false)
+
+        filmLibraryRepository.save(entry1)
+        filmLibraryRepository.save(entry2)
+        filmLibraryRepository.save(entry3)
+
+        val allEntries = filmLibraryRepository.findAll()
+
+        assertEquals(3, allEntries.size)
+        assertTrue(allEntries.any { it.id == entry1.id })
+        assertTrue(allEntries.any { it.id == entry2.id })
+        assertTrue(allEntries.any { it.id == entry3.id })
+    }
+
+    @Test
+    fun `should return empty list when no film library entries exist`() {
+        val allEntries = filmLibraryRepository.findAll()
+
+        assertTrue(allEntries.isEmpty())
+    }
+
+    @Test
+    fun `should delete film library entry by id`() {
+        val entry = FilmLibrary(UUID.randomUUID(), testUser.id, testFilm.id, "Для удаления", false)
+        filmLibraryRepository.save(entry)
+
+        filmLibraryRepository.deleteById(entry.id)
+
+        val foundEntry = filmLibraryRepository.findById(entry.id)
+        assertNull(foundEntry)
+    }
+
+    @Test
+    fun `should not throw exception when deleting non-existent entry`() {
+        val nonExistentId = UUID.randomUUID()
+
+        filmLibraryRepository.deleteById(nonExistentId)
+    }
+
+    @Test
+    fun `should save entry with null comment`() {
+        val entry = FilmLibrary(UUID.randomUUID(), testUser.id, testFilm.id, null, false)
+
+        val savedEntry = filmLibraryRepository.save(entry)
+
+        assertNotNull(savedEntry)
+        assertNull(savedEntry.comment)
+    }
+
+    @Test
+    fun `should save entry with isViewed true`() {
+        val entry = FilmLibrary(UUID.randomUUID(), testUser.id, testFilm.id, "Посмотрел", true)
+
+        val savedEntry = filmLibraryRepository.save(entry)
+
+        assertNotNull(savedEntry)
+        assertTrue(savedEntry.isViewed)
+    }
+
+    @Test
+    fun `should save entry with isViewed false`() {
+        val entry = FilmLibrary(UUID.randomUUID(), testUser.id, testFilm.id, "Еще не смотрел", false)
+
+        val savedEntry = filmLibraryRepository.save(entry)
+
+        assertNotNull(savedEntry)
+        assertFalse(savedEntry.isViewed)
+    }
+
+    @Test
+    fun `should cascade delete entries when user is deleted`() {
+        val entry = FilmLibrary(UUID.randomUUID(), testUser.id, testFilm.id, "Любимый фильм пользователя", false)
+        filmLibraryRepository.save(entry)
+
+        userRepository.deleteById(testUser.id)
+
+        val foundEntry = filmLibraryRepository.findById(entry.id)
+        assertNull(foundEntry)
+    }
+
+    @Test
+    fun `should cascade delete entries when film is deleted`() {
+        val entry = FilmLibrary(UUID.randomUUID(), testUser.id, testFilm.id, "Запись о фильме", false)
+        filmLibraryRepository.save(entry)
+
+        filmRepository.deleteById(testFilm.id)
+
+        val foundEntry = filmLibraryRepository.findById(entry.id)
+        assertNull(foundEntry)
+    }
+}

src/test/kotlin/com/project/movienight/adapters/persistence/jdbc/FilmRepositoryIntegrationTest.kt

@@ -0,0 +1,153 @@
+package com.project.movienight.adapters.persistence.jdbc
+
+import com.project.movienight.domain.model.Film
+import org.junit.jupiter.api.AfterEach
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertNotNull
+import org.junit.jupiter.api.Assertions.assertNull
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.jdbc.core.JdbcTemplate
+import org.springframework.test.context.ActiveProfiles
+import java.util.UUID
+
+@SpringBootTest
+@ActiveProfiles("test")
+class FilmRepositoryIntegrationTest {
+    @Autowired
+    private lateinit var filmRepository: FilmRepository
+
+    @Autowired
+    private lateinit var jdbcTemplate: JdbcTemplate
+
+    @BeforeEach
+    fun setup() {
+        cleanDatabase()
+    }
+
+    @AfterEach
+    fun cleanup() {
+        cleanDatabase()
+    }
+
+    private fun cleanDatabase() {
+        jdbcTemplate.execute("DELETE FROM favorites")
+        jdbcTemplate.execute("DELETE FROM films")
+        jdbcTemplate.execute("DELETE FROM users")
+    }
+
+    @Test
+    fun `should save new film and return saved film`() {
+        val film =
+            Film(
+                id = UUID.randomUUID(),
+                title = "Начало",
+                description = "Захватывающий триллер о снах внутри снов",
+            )
+
+        val savedFilm = filmRepository.save(film)
+
+        assertNotNull(savedFilm)
+        assertEquals(film.id, savedFilm.id)
+        assertEquals(film.title, savedFilm.title)
+        assertEquals(film.description, savedFilm.description)
+    }
+
+    @Test
+    fun `should update existing film`() {
+        val filmId = UUID.randomUUID()
+        val originalFilm = Film(filmId, "Начало", "Оригинальное описание")
+        filmRepository.save(originalFilm)
+
+        val updatedFilm = Film(filmId, "Начало (Обновлено)", "Обновленное описание с дополнительными деталями")
+        val result = filmRepository.save(updatedFilm)
+
+        assertEquals(filmId, result.id)
+        assertEquals("Начало (Обновлено)", result.title)
+        assertEquals("Обновленное описание с дополнительными деталями", result.description)
+
+        val foundFilm = filmRepository.findById(filmId)
+        assertNotNull(foundFilm)
+        assertEquals("Начало (Обновлено)", foundFilm?.title)
+        assertEquals("Обновленное описание с дополнительными деталями", foundFilm?.description)
+    }
+
+    @Test
+    fun `should find film by id`() {
+        val film = Film(UUID.randomUUID(), "Матрица", "Хакер узнает правду о реальности")
+        filmRepository.save(film)
+
+        val foundFilm = filmRepository.findById(film.id)
+
+        assertNotNull(foundFilm)
+        assertEquals(film.id, foundFilm?.id)
+        assertEquals(film.title, foundFilm?.title)
+        assertEquals(film.description, foundFilm?.description)
+    }
+
+    @Test
+    fun `should return null when film not found by id`() {
+        val nonExistentId = UUID.randomUUID()
+
+        val foundFilm = filmRepository.findById(nonExistentId)
+
+        assertNull(foundFilm)
+    }
+
+    @Test
+    fun `should find all films`() {
+        val film1 = Film(UUID.randomUUID(), "Начало", "Сны внутри снов")
+        val film2 = Film(UUID.randomUUID(), "Матрица", "Реальность не то, чем кажется")
+        val film3 = Film(UUID.randomUUID(), "Интерстеллар", "Путешествие сквозь пространство и время")
+
+        filmRepository.save(film1)
+        filmRepository.save(film2)
+        filmRepository.save(film3)
+
+        val allFilms = filmRepository.findAll()
+
+        assertEquals(3, allFilms.size)
+        assertTrue(allFilms.any { it.id == film1.id })
+        assertTrue(allFilms.any { it.id == film2.id })
+        assertTrue(allFilms.any { it.id == film3.id })
+    }
+
+    @Test
+    fun `should return empty list when no films exist`() {
+        val allFilms = filmRepository.findAll()
+
+        assertTrue(allFilms.isEmpty())
+    }
+
+    @Test
+    fun `should delete film by id`() {
+        val film = Film(UUID.randomUUID(), "Начало", "Сны внутри снов")
+        filmRepository.save(film)
+
+        filmRepository.deleteById(film.id)
+
+        val foundFilm = filmRepository.findById(film.id)
+        assertNull(foundFilm)
+    }
+
+    @Test
+    fun `should not throw exception when deleting non-existent film`() {
+        val nonExistentId = UUID.randomUUID()
+
+        filmRepository.deleteById(nonExistentId)
+    }
+
+    @Test
+    fun `should save film with long description`() {
+        val longDescription = "А".repeat(1000)
+        val film = Film(UUID.randomUUID(), "Тестовый фильм", longDescription)
+
+        val savedFilm = filmRepository.save(film)
+
+        assertNotNull(savedFilm)
+        assertEquals(longDescription, savedFilm.description)
+    }
+}

src/test/kotlin/com/project/movienight/adapters/persistence/jdbc/UserRepositoryIntegrationTest.kt

@@ -0,0 +1,160 @@
+package com.project.movienight.adapters.persistence.jdbc
+
+import com.project.movienight.domain.model.User
+import org.junit.jupiter.api.AfterEach
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertNotNull
+import org.junit.jupiter.api.Assertions.assertNull
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.jdbc.core.JdbcTemplate
+import org.springframework.test.context.ActiveProfiles
+import java.util.UUID
+
+@SpringBootTest
+@ActiveProfiles("test")
+class UserRepositoryIntegrationTest {
+    @Autowired
+    private lateinit var userRepository: UserRepository
+
+    @Autowired
+    private lateinit var jdbcTemplate: JdbcTemplate
+
+    @BeforeEach
+    fun setup() {
+        cleanDatabase()
+    }
+
+    @AfterEach
+    fun cleanup() {
+        cleanDatabase()
+    }
+
+    private fun cleanDatabase() {
+        jdbcTemplate.execute("DELETE FROM favorites")
+        jdbcTemplate.execute("DELETE FROM films")
+        jdbcTemplate.execute("DELETE FROM users")
+    }
+
+    @Test
+    fun `should save new user and return saved user`() {
+        val user =
+            User(
+                id = UUID.randomUUID(),
+                name = "John Doe",
+                email = "john@example.com",
+                library = null,
+            )
+
+        val savedUser = userRepository.save(user)
+
+        assertNotNull(savedUser)
+        assertEquals(user.id, savedUser.id)
+        assertEquals(user.name, savedUser.name)
+        assertEquals(user.email, savedUser.email)
+    }
+
+    @Test
+    fun `should update existing user`() {
+        // given
+        val userId = UUID.randomUUID()
+        val originalUser = User(userId, "John Doe", "john@example.com", null)
+        userRepository.save(originalUser)
+
+        val updatedUser = User(userId, "Jane Doe", "jane@example.com", null)
+        val result = userRepository.save(updatedUser)
+
+        assertEquals(userId, result.id)
+        assertEquals("Jane Doe", result.name)
+        assertEquals("jane@example.com", result.email)
+
+        val foundUser = userRepository.findById(userId)
+        assertNotNull(foundUser)
+        assertEquals("Jane Doe", foundUser?.name)
+        assertEquals("jane@example.com", foundUser?.email)
+    }
+
+    @Test
+    fun `should find user by id`() {
+        // given
+        val user = User(UUID.randomUUID(), "John Doe", "john@example.com", null)
+        userRepository.save(user)
+
+        // when
+        val foundUser = userRepository.findById(user.id)
+
+        // then
+        assertNotNull(foundUser)
+        assertEquals(user.id, foundUser?.id)
+        assertEquals(user.name, foundUser?.name)
+        assertEquals(user.email, foundUser?.email)
+    }
+
+    @Test
+    fun `should return null when user not found by id`() {
+        // given
+        val nonExistentId = UUID.randomUUID()
+
+        // when
+        val foundUser = userRepository.findById(nonExistentId)
+
+        // then
+        assertNull(foundUser)
+    }
+
+    @Test
+    fun `should find all users`() {
+        // given
+        val user1 = User(UUID.randomUUID(), "John Doe", "john@example.com", null)
+        val user2 = User(UUID.randomUUID(), "Jane Smith", "jane@example.com", null)
+        val user3 = User(UUID.randomUUID(), "Bob Johnson", "bob@example.com", null)
+
+        userRepository.save(user1)
+        userRepository.save(user2)
+        userRepository.save(user3)
+
+        // when
+        val allUsers = userRepository.findAll()
+
+        // then
+        assertEquals(3, allUsers.size)
+        assertTrue(allUsers.any { it.id == user1.id })
+        assertTrue(allUsers.any { it.id == user2.id })
+        assertTrue(allUsers.any { it.id == user3.id })
+    }
+
+    @Test
+    fun `should return empty list when no users exist`() {
+        // when
+        val allUsers = userRepository.findAll()
+
+        // then
+        assertTrue(allUsers.isEmpty())
+    }
+
+    @Test
+    fun `should delete user by id`() {
+        // given
+        val user = User(UUID.randomUUID(), "John Doe", "john@example.com", null)
+        userRepository.save(user)
+
+        // when
+        userRepository.deleteById(user.id)
+
+        // then
+        val foundUser = userRepository.findById(user.id)
+        assertNull(foundUser)
+    }
+
+    @Test
+    fun `should not throw exception when deleting non-existent user`() {
+        // given
+        val nonExistentId = UUID.randomUUID()
+
+        // when & then (no exception should be thrown)
+        userRepository.deleteById(nonExistentId)
+    }
+}

src/test/kotlin/com/project/movienight/application/services/FilmLibraryServiceTest.kt

@@ -0,0 +1,301 @@
+package com.project.movienight.application.services
+
+import com.project.movienight.application.ports.input.AddFilmToLibraryCommand
+import com.project.movienight.application.ports.input.CreateFilmLibraryCommand
+import com.project.movienight.application.ports.input.GetFilmLibraryQuery
+import com.project.movienight.application.ports.input.RemoveFilmFromLibraryCommand
+import com.project.movienight.application.ports.output.FilmLibraryRepositoryPort
+import com.project.movienight.application.ports.output.IdGenerator
+import com.project.movienight.domain.exception.DomainException
+import com.project.movienight.domain.exception.EntityNotFoundException
+import com.project.movienight.domain.model.FilmLibrary
+import io.mockk.every
+import io.mockk.justRun
+import io.mockk.mockk
+import io.mockk.verify
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertNotNull
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertThrows
+import java.util.UUID
+
+class FilmLibraryServiceTest {
+    private lateinit var filmLibraryRepository: FilmLibraryRepositoryPort
+    private lateinit var idGenerator: IdGenerator
+    private lateinit var filmLibraryService: FilmLibraryService
+
+    @BeforeEach
+    fun setup() {
+        filmLibraryRepository = mockk()
+        idGenerator = mockk()
+        filmLibraryService = FilmLibraryService(filmLibraryRepository, idGenerator)
+    }
+
+    @Test
+    fun `should create new film library when user has no library`() {
+        val userId = UUID.randomUUID()
+        val libraryId = UUID.randomUUID()
+        val filmId = UUID.randomUUID()
+        val command = CreateFilmLibraryCommand(userId = userId, name = "My Films")
+        val expectedLibrary =
+            FilmLibrary(
+                id = libraryId,
+                userId = userId,
+                filmId = filmId,
+                comment = "My Films",
+                isViewed = false,
+            )
+
+        every { filmLibraryRepository.findAll() } returns emptyList()
+        every { idGenerator.generateId() } returnsMany listOf(libraryId, filmId)
+        every {
+            filmLibraryRepository.save(
+                match {
+                    it.userId == userId && it.comment == "My Films" && it.isViewed == false
+                },
+            )
+        } returns expectedLibrary
+
+        val result = filmLibraryService.create(command)
+
+        assertNotNull(result)
+        assertEquals(libraryId, result.id)
+        assertEquals(userId, result.userId)
+        assertEquals(filmId, result.filmId)
+        assertEquals("My Films", result.comment)
+
+        verify(exactly = 1) { filmLibraryRepository.findAll() }
+        verify(exactly = 2) { idGenerator.generateId() }
+        verify(exactly = 1) { filmLibraryRepository.save(any()) }
+    }
+
+    @Test
+    fun `should return existing library when user already has one`() {
+        val userId = UUID.randomUUID()
+        val existingLibrary =
+            FilmLibrary(
+                id = UUID.randomUUID(),
+                userId = userId,
+                filmId = UUID.randomUUID(),
+                comment = "Existing Library",
+                isViewed = false,
+            )
+        val command = CreateFilmLibraryCommand(userId = userId, name = "New Library")
+
+        every { filmLibraryRepository.findAll() } returns listOf(existingLibrary)
+
+        val result = filmLibraryService.create(command)
+
+        assertEquals(existingLibrary, result)
+
+        verify(exactly = 1) { filmLibraryRepository.findAll() }
+        verify(exactly = 0) { idGenerator.generateId() }
+        verify(exactly = 0) { filmLibraryRepository.save(any()) }
+    }
+
+    @Test
+    fun `should add film to new library when user has no library`() {
+        val userId = UUID.randomUUID()
+        val filmId = UUID.randomUUID()
+        val libraryId = UUID.randomUUID()
+        val command = AddFilmToLibraryCommand(userId = userId, filmId = filmId)
+        val expectedLibrary =
+            FilmLibrary(
+                id = libraryId,
+                userId = userId,
+                filmId = filmId,
+                comment = null,
+                isViewed = false,
+            )
+
+        every { filmLibraryRepository.findAll() } returns emptyList()
+        every { idGenerator.generateId() } returns libraryId
+        every {
+            filmLibraryRepository.save(
+                match {
+                    it.userId == userId && it.filmId == filmId && it.comment == null && it.isViewed == false
+                },
+            )
+        } returns expectedLibrary
+
+        val result = filmLibraryService.addFilm(command)
+
+        assertNotNull(result)
+        assertEquals(filmId, result.filmId)
+        assertEquals(userId, result.userId)
+
+        verify(exactly = 1) { filmLibraryRepository.findAll() }
+        verify(exactly = 1) { idGenerator.generateId() }
+        verify(exactly = 1) { filmLibraryRepository.save(any()) }
+    }
+
+    @Test
+    fun `should add film to existing library`() {
+        val userId = UUID.randomUUID()
+        val oldFilmId = UUID.randomUUID()
+        val newFilmId = UUID.randomUUID()
+        val existingLibrary =
+            FilmLibrary(
+                id = UUID.randomUUID(),
+                userId = userId,
+                filmId = oldFilmId,
+                comment = "My Library",
+                isViewed = true,
+            )
+        val command = AddFilmToLibraryCommand(userId = userId, filmId = newFilmId)
+        val updatedLibrary = existingLibrary.copy(filmId = newFilmId, isViewed = false)
+
+        every { filmLibraryRepository.findAll() } returns listOf(existingLibrary)
+        every {
+            filmLibraryRepository.save(
+                match {
+                    it.filmId == newFilmId && it.isViewed == false
+                },
+            )
+        } returns updatedLibrary
+
+        val result = filmLibraryService.addFilm(command)
+
+        assertEquals(newFilmId, result.filmId)
+        assertEquals(false, result.isViewed)
+
+        verify(exactly = 1) { filmLibraryRepository.findAll() }
+        verify(exactly = 0) { idGenerator.generateId() }
+        verify(exactly = 1) { filmLibraryRepository.save(any()) }
+    }
+
+    @Test
+    fun `should remove film from library successfully`() {
+        val userId = UUID.randomUUID()
+        val filmId = UUID.randomUUID()
+        val libraryId = UUID.randomUUID()
+        val existingLibrary =
+            FilmLibrary(
+                id = libraryId,
+                userId = userId,
+                filmId = filmId,
+                comment = "My Library",
+                isViewed = false,
+            )
+        val command = RemoveFilmFromLibraryCommand(userId = userId, filmId = filmId)
+
+        every { filmLibraryRepository.findAll() } returns listOf(existingLibrary)
+        justRun { filmLibraryRepository.deleteById(libraryId) }
+
+        val result = filmLibraryService.removeFilm(command)
+
+        assertEquals(existingLibrary, result)
+
+        verify(exactly = 1) { filmLibraryRepository.findAll() }
+        verify(exactly = 1) { filmLibraryRepository.deleteById(libraryId) }
+    }
+
+    @Test
+    fun `should throw EntityNotFoundException when removing film from non-existent library`() {
+        val userId = UUID.randomUUID()
+        val filmId = UUID.randomUUID()
+        val command = RemoveFilmFromLibraryCommand(userId = userId, filmId = filmId)
+
+        every { filmLibraryRepository.findAll() } returns emptyList()
+
+        assertThrows<EntityNotFoundException> {
+            filmLibraryService.removeFilm(command)
+        }
+
+        verify(exactly = 1) { filmLibraryRepository.findAll() }
+        verify(exactly = 0) { filmLibraryRepository.deleteById(any()) }
+    }
+
+    @Test
+    fun `should throw DomainException when removing film that is not in library`() {
+        val userId = UUID.randomUUID()
+        val libraryFilmId = UUID.randomUUID()
+        val differentFilmId = UUID.randomUUID()
+        val existingLibrary =
+            FilmLibrary(
+                id = UUID.randomUUID(),
+                userId = userId,
+                filmId = libraryFilmId,
+                comment = "My Library",
+                isViewed = false,
+            )
+        val command = RemoveFilmFromLibraryCommand(userId = userId, filmId = differentFilmId)
+
+        every { filmLibraryRepository.findAll() } returns listOf(existingLibrary)
+
+        assertThrows<DomainException> {
+            filmLibraryService.removeFilm(command)
+        }
+
+        verify(exactly = 1) { filmLibraryRepository.findAll() }
+        verify(exactly = 0) { filmLibraryRepository.deleteById(any()) }
+    }
+
+    @Test
+    fun `should throw EntityNotFoundException when libraryId does not match`() {
+        val userId = UUID.randomUUID()
+        val filmId = UUID.randomUUID()
+        val actualLibraryId = UUID.randomUUID()
+        val wrongLibraryId = UUID.randomUUID()
+        val existingLibrary =
+            FilmLibrary(
+                id = actualLibraryId,
+                userId = userId,
+                filmId = filmId,
+                comment = "My Library",
+                isViewed = false,
+            )
+        val command =
+            RemoveFilmFromLibraryCommand(
+                userId = userId,
+                filmId = filmId,
+                libraryId = wrongLibraryId,
+            )
+
+        every { filmLibraryRepository.findAll() } returns listOf(existingLibrary)
+
+        assertThrows<EntityNotFoundException> {
+            filmLibraryService.removeFilm(command)
+        }
+
+        verify(exactly = 1) { filmLibraryRepository.findAll() }
+        verify(exactly = 0) { filmLibraryRepository.deleteById(any()) }
+    }
+
+    @Test
+    fun `should get library successfully`() {
+        val userId = UUID.randomUUID()
+        val existingLibrary =
+            FilmLibrary(
+                id = UUID.randomUUID(),
+                userId = userId,
+                filmId = UUID.randomUUID(),
+                comment = "My Library",
+                isViewed = false,
+            )
+        val query = GetFilmLibraryQuery(userId = userId)
+
+        every { filmLibraryRepository.findAll() } returns listOf(existingLibrary)
+
+        val result = filmLibraryService.getLibrary(query)
+
+        assertEquals(existingLibrary, result)
+
+        verify(exactly = 1) { filmLibraryRepository.findAll() }
+    }
+
+    @Test
+    fun `should throw EntityNotFoundException when getting non-existent library`() {
+        val userId = UUID.randomUUID()
+        val query = GetFilmLibraryQuery(userId = userId)
+
+        every { filmLibraryRepository.findAll() } returns emptyList()
+
+        assertThrows<EntityNotFoundException> {
+            filmLibraryService.getLibrary(query)
+        }
+
+        verify(exactly = 1) { filmLibraryRepository.findAll() }
+    }
+}

src/test/kotlin/com/project/movienight/application/services/FilmServiceTest.kt

@@ -0,0 +1,181 @@
+package com.project.movienight.application.services
+
+import com.project.movienight.application.ports.input.CreateFilmCommand
+import com.project.movienight.application.ports.input.EditFilmCommand
+import com.project.movienight.application.ports.output.FilmRepositoryPort
+import com.project.movienight.application.ports.output.IdGenerator
+import com.project.movienight.config.FilmServiceProperties
+import com.project.movienight.domain.exception.BlockedValueException
+import com.project.movienight.domain.exception.EntityNotFoundException
+import com.project.movienight.domain.model.Film
+import io.mockk.every
+import io.mockk.justRun
+import io.mockk.mockk
+import io.mockk.verify
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertNotNull
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertThrows
+import java.util.UUID
+
+class FilmServiceTest {
+    private lateinit var filmRepository: FilmRepositoryPort
+    private lateinit var idGenerator: IdGenerator
+    private lateinit var filmConfig: FilmServiceProperties
+    private lateinit var filmService: FilmService
+
+    @BeforeEach
+    fun setup() {
+        filmRepository = mockk()
+        idGenerator = mockk()
+        filmConfig = mockk()
+        filmService = FilmService(filmRepository, idGenerator, filmConfig)
+    }
+
+    @Test
+    fun `should create film successfully`() {
+        val command = CreateFilmCommand(title = "Inception", description = "A mind-bending thriller")
+        val filmId = UUID.randomUUID()
+        val expectedFilm = Film(id = filmId, title = "Inception", description = "A mind-bending thriller")
+
+        every { filmConfig.isBlocked("Inception") } returns false
+        every { filmConfig.isBlocked("A mind-bending thriller") } returns false
+        every { idGenerator.generateId() } returns filmId
+        every { filmRepository.save(any()) } returns expectedFilm
+
+        val result = filmService.create(command)
+
+        assertNotNull(result)
+        assertEquals(filmId, result.id)
+        assertEquals("Inception", result.title)
+        assertEquals("A mind-bending thriller", result.description)
+
+        verify(exactly = 1) { filmConfig.isBlocked("Inception") }
+        verify(exactly = 1) { filmConfig.isBlocked("A mind-bending thriller") }
+        verify(exactly = 1) { idGenerator.generateId() }
+        verify(exactly = 1) { filmRepository.save(any()) }
+    }
+
+    @Test
+    fun `should throw BlockedValueException when creating film with blocked title`() {
+        val command = CreateFilmCommand(title = "censored", description = "Some description")
+
+        every { filmConfig.isBlocked("censored") } returns true
+        every { filmConfig.isBlocked("Some description") } returns false
+
+        assertThrows<BlockedValueException> {
+            filmService.create(command)
+        }
+
+        verify(exactly = 1) { filmConfig.isBlocked("censored") }
+        verify(exactly = 0) { filmConfig.isBlocked("Some description") }
+        verify(exactly = 0) { idGenerator.generateId() }
+        verify(exactly = 0) { filmRepository.save(any()) }
+    }
+
+    @Test
+    fun `should throw BlockedValueException when creating film with blocked description`() {
+        val command = CreateFilmCommand(title = "Good Film", description = "python")
+
+        every { filmConfig.isBlocked("Good Film") } returns false
+        every { filmConfig.isBlocked("python") } returns true
+
+        assertThrows<BlockedValueException> {
+            filmService.create(command)
+        }
+
+        verify(exactly = 1) { filmConfig.isBlocked("Good Film") }
+        verify(exactly = 1) { filmConfig.isBlocked("python") }
+        verify(exactly = 0) { idGenerator.generateId() }
+        verify(exactly = 0) { filmRepository.save(any()) }
+    }
+
+    @Test
+    fun `should edit film successfully`() {
+        val filmId = UUID.randomUUID()
+        val command = EditFilmCommand(title = "Inception 2", description = "The sequel")
+        val existingFilm = Film(id = filmId, title = "Inception", description = "A mind-bending thriller")
+        val updatedFilm = Film(id = filmId, title = "Inception 2", description = "The sequel")
+
+        every { filmConfig.isBlocked("Inception 2") } returns false
+        every { filmConfig.isBlocked("The sequel") } returns false
+        every { filmRepository.findById(filmId) } returns existingFilm
+        every { filmRepository.save(any()) } returns updatedFilm
+
+        val result = filmService.edit(filmId, command)
+
+        assertNotNull(result)
+        assertEquals(filmId, result.id)
+        assertEquals("Inception 2", result.title)
+        assertEquals("The sequel", result.description)
+
+        verify(exactly = 1) { filmConfig.isBlocked("Inception 2") }
+        verify(exactly = 1) { filmConfig.isBlocked("The sequel") }
+        verify(exactly = 1) { filmRepository.findById(filmId) }
+        verify(exactly = 1) { filmRepository.save(any()) }
+    }
+
+    @Test
+    fun `should throw BlockedValueException when editing film with blocked title`() {
+        val filmId = UUID.randomUUID()
+        val command = EditFilmCommand(title = "epstein", description = "Some description")
+
+        every { filmConfig.isBlocked("epstein") } returns true
+
+        assertThrows<BlockedValueException> {
+            filmService.edit(filmId, command)
+        }
+
+        verify(exactly = 1) { filmConfig.isBlocked("epstein") }
+        verify(exactly = 0) { filmRepository.findById(any()) }
+        verify(exactly = 0) { filmRepository.save(any()) }
+    }
+
+    @Test
+    fun `should throw EntityNotFoundException when editing non-existent film`() {
+        val filmId = UUID.randomUUID()
+        val command = EditFilmCommand(title = "New Title", description = "New Description")
+
+        every { filmConfig.isBlocked("New Title") } returns false
+        every { filmConfig.isBlocked("New Description") } returns false
+        every { filmRepository.findById(filmId) } returns null
+
+        assertThrows<EntityNotFoundException> {
+            filmService.edit(filmId, command)
+        }
+
+        verify(exactly = 1) { filmConfig.isBlocked("New Title") }
+        verify(exactly = 1) { filmConfig.isBlocked("New Description") }
+        verify(exactly = 1) { filmRepository.findById(filmId) }
+        verify(exactly = 0) { filmRepository.save(any()) }
+    }
+
+    @Test
+    fun `should delete film successfully`() {
+        val filmId = UUID.randomUUID()
+        val existingFilm = Film(id = filmId, title = "Inception", description = "A mind-bending thriller")
+
+        every { filmRepository.findById(filmId) } returns existingFilm
+        justRun { filmRepository.deleteById(filmId) }
+
+        filmService.delete(filmId)
+
+        verify(exactly = 1) { filmRepository.findById(filmId) }
+        verify(exactly = 1) { filmRepository.deleteById(filmId) }
+    }
+
+    @Test
+    fun `should throw EntityNotFoundException when deleting non-existent film`() {
+        val filmId = UUID.randomUUID()
+
+        every { filmRepository.findById(filmId) } returns null
+
+        assertThrows<EntityNotFoundException> {
+            filmService.delete(filmId)
+        }
+
+        verify(exactly = 1) { filmRepository.findById(filmId) }
+        verify(exactly = 0) { filmRepository.deleteById(any()) }
+    }
+}

src/test/kotlin/com/project/movienight/application/services/UserServiceTest.kt

@@ -0,0 +1,155 @@
+package com.project.movienight.application.services
+
+import com.project.movienight.application.ports.input.CreateUserCommand
+import com.project.movienight.application.ports.input.EditUserCommand
+import com.project.movienight.application.ports.output.IdGenerator
+import com.project.movienight.application.ports.output.UserRepositoryPort
+import com.project.movienight.config.UserServiceProperties
+import com.project.movienight.domain.exception.BlockedValueException
+import com.project.movienight.domain.exception.EntityNotFoundException
+import com.project.movienight.domain.model.User
+import io.mockk.every
+import io.mockk.justRun
+import io.mockk.mockk
+import io.mockk.verify
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertNotNull
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertThrows
+import java.util.UUID
+
+class UserServiceTest {
+    private lateinit var userRepository: UserRepositoryPort
+    private lateinit var idGenerator: IdGenerator
+    private lateinit var userConfig: UserServiceProperties
+    private lateinit var userService: UserService
+
+    @BeforeEach
+    fun setup() {
+        userRepository = mockk()
+        idGenerator = mockk()
+        userConfig = mockk()
+        userService = UserService(userRepository, idGenerator, userConfig)
+    }
+
+    @Test
+    fun `should create user successfully`() {
+        val command = CreateUserCommand(name = "John Doe", email = "john@example.com")
+        val userId = UUID.randomUUID()
+        val expectedUser = User(id = userId, name = "John Doe", email = "john@example.com", library = null)
+
+        every { userConfig.isBlocked("John Doe") } returns false
+        every { idGenerator.generateId() } returns userId
+        every { userRepository.save(any()) } returns expectedUser
+
+        val result = userService.create(command)
+
+        assertNotNull(result)
+        assertEquals(userId, result.id)
+        assertEquals("John Doe", result.name)
+        assertEquals("john@example.com", result.email)
+
+        verify(exactly = 1) { userConfig.isBlocked("John Doe") }
+        verify(exactly = 1) { idGenerator.generateId() }
+        verify(exactly = 1) { userRepository.save(any()) }
+    }
+
+    @Test
+    fun `should throw BlockedValueException when creating user with blocked name`() {
+        val command = CreateUserCommand(name = "admin", email = "admin@example.com")
+
+        every { userConfig.isBlocked("admin") } returns true
+
+        assertThrows<BlockedValueException> {
+            userService.create(command)
+        }
+
+        verify(exactly = 1) { userConfig.isBlocked("admin") }
+        verify(exactly = 0) { idGenerator.generateId() }
+        verify(exactly = 0) { userRepository.save(any()) }
+    }
+
+    @Test
+    fun `should edit user successfully`() {
+        val userId = UUID.randomUUID()
+        val command = EditUserCommand(name = "Jane Doe")
+        val existingUser = User(id = userId, name = "John Doe", email = "john@example.com", library = null)
+        val updatedUser = User(id = userId, name = "Jane Doe", email = "john@example.com", library = null)
+
+        every { userConfig.isBlocked("Jane Doe") } returns false
+        every { userRepository.findById(userId) } returns existingUser
+        every { userRepository.save(any()) } returns updatedUser
+
+        val result = userService.edit(userId, command)
+
+        assertNotNull(result)
+        assertEquals(userId, result.id)
+        assertEquals("Jane Doe", result.name)
+
+        verify(exactly = 1) { userConfig.isBlocked("Jane Doe") }
+        verify(exactly = 1) { userRepository.findById(userId) }
+        verify(exactly = 1) { userRepository.save(any()) }
+    }
+
+    @Test
+    fun `should throw BlockedValueException when editing user with blocked name`() {
+        val userId = UUID.randomUUID()
+        val command = EditUserCommand(name = "root")
+
+        every { userConfig.isBlocked("root") } returns true
+
+        assertThrows<BlockedValueException> {
+            userService.edit(userId, command)
+        }
+
+        verify(exactly = 1) { userConfig.isBlocked("root") }
+        verify(exactly = 0) { userRepository.findById(any()) }
+        verify(exactly = 0) { userRepository.save(any()) }
+    }
+
+    @Test
+    fun `should throw EntityNotFoundException when editing non-existent user`() {
+        val userId = UUID.randomUUID()
+        val command = EditUserCommand(name = "Jane Doe")
+
+        every { userConfig.isBlocked("Jane Doe") } returns false
+        every { userRepository.findById(userId) } returns null
+
+        assertThrows<EntityNotFoundException> {
+            userService.edit(userId, command)
+        }
+
+        verify(exactly = 1) { userConfig.isBlocked("Jane Doe") }
+        verify(exactly = 1) { userRepository.findById(userId) }
+        verify(exactly = 0) { userRepository.save(any()) }
+    }
+
+    @Test
+    fun `should delete user successfully`() {
+        val userId = UUID.randomUUID()
+        val existingUser = User(id = userId, name = "John Doe", email = "john@example.com", library = null)
+
+        every { userRepository.findById(userId) } returns existingUser
+        justRun { userRepository.deleteById(userId) }
+
+        userService.delete(userId)
+
+        verify(exactly = 1) { userRepository.findById(userId) }
+        verify(exactly = 1) { userRepository.deleteById(userId) }
+    }
+
+    @Test
+    fun `should throw EntityNotFoundException when deleting non-existent user`() {
+        val userId = UUID.randomUUID()
+
+        every { userRepository.findById(userId) } returns null
+
+        assertThrows<EntityNotFoundException> {
+            userService.delete(userId)
+        }
+
+        verify(exactly = 1) { userRepository.findById(userId) }
+        verify(exactly = 0) { userRepository.deleteById(any()) }
+    }
+}

src/test/resources/application-test.yaml

@@ -0,0 +1,28 @@
+spring:
+  application:
+    name: MovieNight-Test
+  datasource:
+    url: jdbc:h2:mem:testdb;MODE=PostgreSQL;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
+    username: sa
+    password:
+    driver-class-name: org.h2.Driver
+  flyway:
+    enabled: true
+    url: jdbc:h2:mem:testdb;MODE=PostgreSQL;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
+    locations: classpath:db/migration
+    baseline-on-migrate: true
+  h2:
+    console:
+      enabled: false
+
+services:
+  user:
+    blocked-names:
+      - admin
+      - root
+      - system
+  film:
+    blocked-patterns:
+      - censored
+      - epstein
+      - python