test(contents): add unit tests for ContentsController and ContentsService with mocked dependencies

backend/src/contents/contents.service.spec.ts

@@ -23,6 +23,7 @@ describe("ContentsService", () => {
 		incrementViews: jest.fn(),
 		incrementUsage: jest.fn(),
 		softDelete: jest.fn(),
+		softDeleteAdmin: jest.fn(),
 		findOne: jest.fn(),
 		findBySlug: jest.fn(),
 	};
@@ -147,4 +148,81 @@ describe("ContentsService", () => {
 			expect(result[0].views).toBe(1);
 		});
 	});
+
+	describe("incrementUsage", () => {
+		it("should increment usage", async () => {
+			mockContentsRepository.incrementUsage.mockResolvedValue([
+				{ id: "1", usageCount: 1 },
+			]);
+			await service.incrementUsage("1");
+			expect(mockContentsRepository.incrementUsage).toHaveBeenCalledWith("1");
+		});
+	});
+
+	describe("remove", () => {
+		it("should soft delete content", async () => {
+			mockContentsRepository.softDelete.mockResolvedValue({ id: "1" });
+			await service.remove("1", "u1");
+			expect(mockContentsRepository.softDelete).toHaveBeenCalledWith("1", "u1");
+		});
+	});
+
+	describe("removeAdmin", () => {
+		it("should soft delete content without checking owner", async () => {
+			mockContentsRepository.softDeleteAdmin.mockResolvedValue({ id: "1" });
+			await service.removeAdmin("1");
+			expect(mockContentsRepository.softDeleteAdmin).toHaveBeenCalledWith("1");
+		});
+	});
+
+	describe("findOne", () => {
+		it("should return content by id", async () => {
+			mockContentsRepository.findOne.mockResolvedValue({
+				id: "1",
+				storageKey: "k",
+				author: { avatarUrl: "a" },
+			});
+			mockS3Service.getPublicUrl.mockReturnValue("url");
+			const result = await service.findOne("1");
+			expect(result.id).toBe("1");
+			expect(result.url).toBe("url");
+		});
+
+		it("should return content by slug", async () => {
+			mockContentsRepository.findOne.mockResolvedValue({
+				id: "1",
+				slug: "s",
+				storageKey: "k",
+			});
+			const result = await service.findOne("s");
+			expect(result.slug).toBe("s");
+		});
+	});
+
+	describe("generateBotHtml", () => {
+		it("should generate html with og tags", () => {
+			const content = { title: "Title", storageKey: "k" };
+			mockS3Service.getPublicUrl.mockReturnValue("url");
+			const html = service.generateBotHtml(content as any);
+			expect(html).toContain("<title>Title</title>");
+			expect(html).toContain('content="Title"');
+			expect(html).toContain('content="url"');
+		});
+	});
+
+	describe("ensureUniqueSlug", () => {
+		it("should return original slug if unique", async () => {
+			mockContentsRepository.findBySlug.mockResolvedValue(null);
+			const slug = (service as any).ensureUniqueSlug("My Title");
+			await expect(slug).resolves.toBe("my-title");
+		});
+
+		it("should append counter if not unique", async () => {
+			mockContentsRepository.findBySlug
+				.mockResolvedValueOnce({ id: "1" })
+				.mockResolvedValueOnce(null);
+			const slug = await (service as any).ensureUniqueSlug("My Title");
+			expect(slug).toBe("my-title-1");
+		});
+	});
 });