[Refactor] Test 코드 및 Data 레이어 코드 리팩토링

Mark-In-Tests/Test/UseCase/DeleteFolderUseCaseTests.swift

@@ -0,0 +1,289 @@
+//
+//  DeleteFolderUseCaseTests.swift
+//  Mark-In-Tests
+//
+//  Created by 이정동 on 6/6/25.
+//
+
+import Testing
+
+@testable import Mark_In
+
+struct DeleteFolderUseCaseTests {
+
+  @Test
+  func test_인증된_유저_정보가_없을_때_unauthenticated_에러를_반환한다() async throws {
+    // Given: 준비
+    let stubAuthUserManager = StubAuthUserManager(userID: nil)
+    let mockLinkRepository = MockLinkRepository()
+    let mockFolderRepository = MockFolderRepository()
+
+    let sut = DeleteFolderUseCaseImpl(
+      authUserManager: stubAuthUserManager,
+      linkRepository: mockLinkRepository,
+      folderRepository: mockFolderRepository
+    )
+
+    // When: 실행
+    var thrownError: Error?
+    do {
+      try await sut.execute(folderID: "", includingChildren: false)
+    } catch {
+      thrownError = error
+    }
+
+    // Then: 검증
+    #expect(thrownError as? AuthError == AuthError.unauthenticated)
+
+    // TearDown: 해제
+
+  }
+
+  @Test
+  func test_인증된_유저_정보가_있다면_에러를_반환하지_않는다() async throws {
+    // Given: 준비
+    let stubAuthUserManager = StubAuthUserManager(userID: "testUser")
+    let mockLinkRepository = MockLinkRepository()
+    let mockFolderRepository = MockFolderRepository()
+
+    let sut = DeleteFolderUseCaseImpl(
+      authUserManager: stubAuthUserManager,
+      linkRepository: mockLinkRepository,
+      folderRepository: mockFolderRepository
+    )
+
+    // When: 실행
+    var thrownError: Error?
+    do {
+      try await sut.execute(folderID: "", includingChildren: false)
+    } catch {
+      thrownError = error
+    }
+
+    // Then: 검증
+    #expect(thrownError as? AuthError == nil)
+
+    // TearDown: 해제
+
+  }
+
+  @Test
+  func test_includeChildren이_true이면_linkRepository의_deleteAllInFolder를_호출한다() async throws {
+    // Given: 준비
+    let stubAuthUserManager = StubAuthUserManager(userID: "testUser")
+    let mockLinkRepository = MockLinkRepository()
+    let mockFolderRepository = MockFolderRepository()
+
+    let sut = DeleteFolderUseCaseImpl(
+      authUserManager: stubAuthUserManager,
+      linkRepository: mockLinkRepository,
+      folderRepository: mockFolderRepository
+    )
+
+    // When: 실행
+    try await sut.execute(folderID: "", includingChildren: true)
+
+    // Then: 검증
+    let deleteAllInFolderCallCount = mockLinkRepository.deleteAllInFolderCallCount
+    #expect(deleteAllInFolderCallCount == 1)
+
+    // TearDown: 해제
+
+  }
+
+  @Test
+  func test_includeChildren이_false이면_linkRepository의_moveLinksInFolder를_호출한다() async throws {
+    // Given: 준비
+    let stubAuthUserManager = StubAuthUserManager(userID: "testUser")
+    let mockLinkRepository = MockLinkRepository()
+    let mockFolderRepository = MockFolderRepository()
+
+    let sut = DeleteFolderUseCaseImpl(
+      authUserManager: stubAuthUserManager,
+      linkRepository: mockLinkRepository,
+      folderRepository: mockFolderRepository
+    )
+
+    // When: 실행
+    try await sut.execute(folderID: "", includingChildren: false)
+
+    // Then: 검증
+    let moveLinksInFolderCallCount = mockLinkRepository.moveLinksInFolderCallCount
+    #expect(moveLinksInFolderCallCount == 1)
+
+    // TearDown: 해제
+
+  }
+
+  @Test
+  func test_폴더ID가_존재할_경우_folderRepository의_delete를_호출한다() async throws {
+    // Given: 준비
+    let stubAuthUserManager = StubAuthUserManager(userID: "testUser")
+    let mockLinkRepository = MockLinkRepository()
+    let mockFolderRepository = MockFolderRepository()
+
+    let sut = DeleteFolderUseCaseImpl(
+      authUserManager: stubAuthUserManager,
+      linkRepository: mockLinkRepository,
+      folderRepository: mockFolderRepository
+    )
+
+    // When: 실행
+    try await sut.execute(folderID: "testFolder", includingChildren: false)
+
+    // Then: 검증
+    let deleteCallCount = mockFolderRepository.deleteCallCount
+    #expect(deleteCallCount == 1)
+
+    // TearDown: 해제
+
+  }
+
+  @Test
+  func test_폴더ID가_존재하지_않을_경우_folderRepository의_delete를_호출하지_않는다() async throws {
+    // Given: 준비
+    let stubAuthUserManager = StubAuthUserManager(userID: "testUser")
+    let mockLinkRepository = MockLinkRepository()
+    let mockFolderRepository = MockFolderRepository()
+
+    let sut = DeleteFolderUseCaseImpl(
+      authUserManager: stubAuthUserManager,
+      linkRepository: mockLinkRepository,
+      folderRepository: mockFolderRepository
+    )
+
+    // When: 실행
+    try await sut.execute(folderID: nil, includingChildren: false)
+
+    // Then: 검증
+    let deleteCallCount = mockFolderRepository.deleteCallCount
+    #expect(deleteCallCount == 0)
+
+    // TearDown: 해제
+
+  }
+
+
+  @Test
+  func test_includingChildren이_true면_링크들을_삭제한다() async throws {
+    // Given: 준비
+    let userID = "testUser"
+    let folderID = "testFolderID"
+
+    let stubAuthUserManager = StubAuthUserManager(userID: userID)
+    let fakeLinkRepo = FakeLinkRepository()
+      .withTestLinks(userID: userID, folderID: folderID, count: 5)
+    let fakeFolderRepo = FakeFolderRepository()
+      .withTestFolder(userID: userID, folderID: folderID)
+      .withTestFolders(userID: userID, count: 2)
+
+    let sut = DeleteFolderUseCaseImpl(
+      authUserManager: stubAuthUserManager,
+      linkRepository: fakeLinkRepo,
+      folderRepository: fakeFolderRepo
+    )
+
+    // When: 실행
+    _ = try await sut.execute(folderID: folderID, includingChildren: true)
+
+    // Then: 검증
+    let links = fakeLinkRepo.data[userID]!
+
+    #expect(links.filter { $0.folderID == folderID }.isEmpty)
+
+    // TearDown: 해제
+
+  }
+
+  @Test
+  func test_includingChildren이_false면_링크들을_기본_폴더로_이동한다() async throws {
+    // Given: 준비
+    let userID = "testUser"
+    let folderID = "testFolderID"
+    let defaultFolderID: String? = nil
+
+    let stubAuthUserManager = StubAuthUserManager(userID: userID)
+    let fakeLinkRepo = FakeLinkRepository()
+      .withTestLinks(userID: userID, folderID: folderID, count: 5)
+    let fakeFolderRepo = FakeFolderRepository()
+      .withTestFolder(userID: userID, folderID: folderID)
+      .withTestFolder(userID: userID, folderID: defaultFolderID)
+
+    let sut = DeleteFolderUseCaseImpl(
+      authUserManager: stubAuthUserManager,
+      linkRepository: fakeLinkRepo,
+      folderRepository: fakeFolderRepo
+    )
+
+    // When: 실행
+    _ = try await sut.execute(folderID: folderID, includingChildren: false)
+
+    // Then: 검증
+    let links = fakeLinkRepo.data[userID]!
+
+    #expect(links.filter { $0.folderID == defaultFolderID }.count == 5)
+
+    // TearDown: 해제
+
+  }
+
+  @Test
+  func test_folderID가_nil이면_폴더는_삭제되지_않는다() async throws {
+    // Given: 준비
+    let userID = "testUser"
+    let folderID: String? = nil
+
+    let stubAuthUserManager = StubAuthUserManager(userID: userID)
+    let fakeLinkRepo = FakeLinkRepository()
+      .withTestLinks(userID: userID, folderID: folderID, count: 5)
+    let fakeFolderRepo = FakeFolderRepository()
+      .withTestFolder(userID: userID, folderID: folderID)
+
+    let sut = DeleteFolderUseCaseImpl(
+      authUserManager: stubAuthUserManager,
+      linkRepository: fakeLinkRepo,
+      folderRepository: fakeFolderRepo
+    )
+
+    // When: 실행
+    _ = try await sut.execute(folderID: folderID, includingChildren: false)
+
+    // Then: 검증
+    let folders = fakeFolderRepo.data[userID]!
+
+    #expect(folders.contains { $0.id == folderID })
+
+    // TearDown: 해제
+
+  }
+
+  @Test
+  func test_folderID가_존재하면_폴더를_삭제한다() async throws {
+    // Given: 준비
+    let userID = "testUser"
+    let folderID = "testFolder"
+
+    let stubAuthUserManager = StubAuthUserManager(userID: userID)
+    let fakeLinkRepo = FakeLinkRepository()
+      .withTestLinks(userID: userID, folderID: folderID, count: 5)
+    let fakeFolderRepo = FakeFolderRepository()
+      .withTestFolder(userID: userID, folderID: folderID)
+
+    let sut = DeleteFolderUseCaseImpl(
+      authUserManager: stubAuthUserManager,
+      linkRepository: fakeLinkRepo,
+      folderRepository: fakeFolderRepo
+    )
+
+    // When: 실행
+    _ = try await sut.execute(folderID: folderID, includingChildren: false)
+
+    // Then: 검증
+    let folders = fakeFolderRepo.data[userID]!
+
+    #expect(folders.contains { $0.id == folderID } == false)
+
+    // TearDown: 해제
+
+  }
+}

Mark-In/Sources/Data/Tests/FakeFolderRepository.swift → Mark-In-Tests/Testing/Repository/FakeFolderRepository.swift

@@ -5,6 +5,7 @@
 //  Created by 이정동 on 6/6/25.
 //
 
+@testable import Mark_In
 import Foundation
 
 final class FakeFolderRepository: FolderRepository {

Mark-In/Sources/Data/Tests/FakeLinkRepository.swift → Mark-In-Tests/Testing/Repository/FakeLinkRepository.swift

@@ -5,6 +5,7 @@
 //  Created by 이정동 on 6/6/25.
 //
 
+@testable import Mark_In
 import Foundation
 
 final class FakeLinkRepository: LinkRepository {

Mark-In-Tests/Testing/Repository/MockFolderRepository.swift

@@ -0,0 +1,30 @@
+//
+//  MockFolderRepository.swift
+//  Mark-In-Tests
+//
+//  Created by 이정동 on 6/17/25.
+//
+
+@testable import Mark_In
+import Foundation
+
+final class MockFolderRepository: FolderRepository {
+
+  var deleteCallCount: Int = 0
+
+  func create(userID: String, folder: WriteFolder) async throws -> Folder {
+    return Folder(name: "", createdAt: Date())
+  }
+
+  func fetchAll(userID: String) async throws -> [Folder] {
+    return []
+  }
+
+  func delete(userID: String, folderID: String) async throws {
+    deleteCallCount += 1
+  }
+
+  func deleteAll(userID: String) async throws {
+
+  }
+}

Mark-In-Tests/Testing/Repository/MockLinkRepository.swift

@@ -0,0 +1,43 @@
+//
+//  MockLinkRepository.swift
+//  Mark-In-Tests
+//
+//  Created by 이정동 on 6/17/25.
+//
+
+@testable import Mark_In
+import Foundation
+
+final class MockLinkRepository: LinkRepository {
+
+  var moveLinksInFolderCallCount: Int = 0
+  var deleteAllInFolderCallCount: Int = 0
+
+  func create(userID: String, link: WriteLink) async throws -> WebLink {
+    return WebLink(id: "", url: "", isPinned: false, createdAt: Date())
+  }
+
+  func fetchAll(userID: String) async throws -> [WebLink] {
+    return []
+  }
+
+  func moveLinkInFolder(userID: String, target linkID: String, to folderID: String?) async throws {
+
+  }
+
+  func moveLinksInFolder(userID: String, fromFolderID: String?, toFolderID: String?) async throws {
+    moveLinksInFolderCallCount += 1
+  }
+
+  func delete(userID: String, linkID: String) async throws {
+
+  }
+
+  func deleteAllInFolder(userID: String, folderID: String?) async throws {
+    deleteAllInFolderCallCount += 1
+  }
+
+  func deleteAll(userID: String) async throws {
+
+  }
+}