diff --git a/backend/src/users/repositories/users.repository.spec.ts b/backend/src/users/repositories/users.repository.spec.ts
new file mode 100644
index 0000000..41df83a
--- /dev/null
+++ b/backend/src/users/repositories/users.repository.spec.ts
@@ -0,0 +1,150 @@
+import { Test, TestingModule } from "@nestjs/testing";
+import { DatabaseService } from "../../database/database.service";
+import { UsersRepository } from "./users.repository";
+
+describe("UsersRepository", () => {
+	let repository: UsersRepository;
+	let _databaseService: DatabaseService;
+
+	const mockDb = {
+		insert: jest.fn().mockReturnThis(),
+		values: jest.fn().mockReturnThis(),
+		returning: jest.fn().mockResolvedValue([{ uuid: "u1" }]),
+		select: jest.fn().mockReturnThis(),
+		from: jest.fn().mockReturnThis(),
+		where: jest.fn().mockReturnThis(),
+		limit: jest.fn().mockReturnThis(),
+		offset: jest.fn().mockReturnThis(),
+		update: jest.fn().mockReturnThis(),
+		set: jest.fn().mockReturnThis(),
+		delete: jest.fn().mockReturnThis(),
+		transaction: jest.fn(),
+	};
+
+	beforeEach(async () => {
+		const module: TestingModule = await Test.createTestingModule({
+			providers: [
+				UsersRepository,
+				{
+					provide: DatabaseService,
+					useValue: { db: mockDb },
+				},
+			],
+		}).compile();
+
+		repository = module.get<UsersRepository>(UsersRepository);
+		_databaseService = module.get<DatabaseService>(DatabaseService);
+		jest.clearAllMocks();
+	});
+
+	it("should be defined", () => {
+		expect(repository).toBeDefined();
+	});
+
+	describe("create", () => {
+		it("should insert a user", async () => {
+			const data = {
+				username: "u",
+				email: "e",
+				passwordHash: "p",
+				emailHash: "eh",
+			};
+			await repository.create(data);
+			expect(mockDb.insert).toHaveBeenCalled();
+			expect(mockDb.values).toHaveBeenCalledWith(data);
+		});
+	});
+
+	describe("findByEmailHash", () => {
+		it("should select user by email hash", async () => {
+			mockDb.limit.mockResolvedValueOnce([{ uuid: "u1" }]);
+			const result = await repository.findByEmailHash("hash");
+			expect(result.uuid).toBe("u1");
+			expect(mockDb.select).toHaveBeenCalled();
+			expect(mockDb.where).toHaveBeenCalled();
+		});
+	});
+
+	describe("findOneWithPrivateData", () => {
+		it("should select user with private data", async () => {
+			mockDb.limit.mockResolvedValueOnce([{ uuid: "u1" }]);
+			const result = await repository.findOneWithPrivateData("u1");
+			expect(result.uuid).toBe("u1");
+		});
+	});
+
+	describe("countAll", () => {
+		it("should return count", async () => {
+			mockDb.from.mockResolvedValueOnce([{ count: 5 }]);
+			const result = await repository.countAll();
+			expect(result).toBe(5);
+		});
+	});
+
+	describe("findAll", () => {
+		it("should select users with limit and offset", async () => {
+			mockDb.offset.mockResolvedValueOnce([{ uuid: "u1" }]);
+			const result = await repository.findAll(10, 0);
+			expect(result[0].uuid).toBe("u1");
+			expect(mockDb.limit).toHaveBeenCalledWith(10);
+			expect(mockDb.offset).toHaveBeenCalledWith(0);
+		});
+	});
+
+	describe("findByUsername", () => {
+		it("should find by username", async () => {
+			mockDb.limit.mockResolvedValueOnce([{ uuid: "u1" }]);
+			const result = await repository.findByUsername("u");
+			expect(result.uuid).toBe("u1");
+		});
+	});
+
+	describe("update", () => {
+		it("should update user", async () => {
+			mockDb.returning.mockResolvedValueOnce([{ uuid: "u1" }]);
+			await repository.update("u1", { displayName: "New" });
+			expect(mockDb.update).toHaveBeenCalled();
+			expect(mockDb.set).toHaveBeenCalled();
+		});
+	});
+
+	describe("getTwoFactorSecret", () => {
+		it("should return secret", async () => {
+			mockDb.limit.mockResolvedValueOnce([{ secret: "s" }]);
+			const result = await repository.getTwoFactorSecret("u1");
+			expect(result).toBe("s");
+		});
+	});
+
+	describe("getUserContents", () => {
+		it("should return contents", async () => {
+			mockDb.where.mockResolvedValueOnce([{ id: "c1" }]);
+			const result = await repository.getUserContents("u1");
+			expect(result[0].id).toBe("c1");
+		});
+	});
+
+	describe("softDeleteUserAndContents", () => {
+		it("should run transaction", async () => {
+			const mockTx = {
+				update: jest.fn().mockReturnThis(),
+				set: jest.fn().mockReturnThis(),
+				where: jest.fn().mockReturnThis(),
+				returning: jest.fn().mockResolvedValue([{ uuid: "u1" }]),
+			};
+			mockDb.transaction.mockImplementation(async (cb) => cb(mockTx));
+
+			const result = await repository.softDeleteUserAndContents("u1");
+			expect(result[0].uuid).toBe("u1");
+			expect(mockTx.update).toHaveBeenCalledTimes(2);
+		});
+	});
+
+	describe("purgeDeleted", () => {
+		it("should delete old deleted users", async () => {
+			mockDb.returning.mockResolvedValueOnce([{ uuid: "u1" }]);
+			const _result = await repository.purgeDeleted(new Date());
+			expect(mockDb.delete).toHaveBeenCalled();
+		});
+	});
+});
diff --git a/backend/src/users/users.controller.spec.ts b/backend/src/users/users.controller.spec.ts
new file mode 100644
index 0000000..30169d5
--- /dev/null
+++ b/backend/src/users/users.controller.spec.ts
@@ -0,0 +1,192 @@
+jest.mock("uuid", () => ({
+	v4: jest.fn(() => "mocked-uuid"),
+}));
+
+jest.mock("@noble/post-quantum/ml-kem.js", () => ({
+	ml_kem768: {
+		keygen: jest.fn(),
+		encapsulate: jest.fn(),
+		decapsulate: jest.fn(),
+	},
+}));
+
+jest.mock("jose", () => ({
+	SignJWT: jest.fn().mockReturnValue({
+		setProtectedHeader: jest.fn().mockReturnThis(),
+		setIssuedAt: jest.fn().mockReturnThis(),
+		setExpirationTime: jest.fn().mockReturnThis(),
+		sign: jest.fn().mockResolvedValue("mocked-jwt"),
+	}),
+	jwtVerify: jest.fn(),
+}));
+
+import { CACHE_MANAGER } from "@nestjs/cache-manager";
+import { Test, TestingModule } from "@nestjs/testing";
+import { AuthService } from "../auth/auth.service";
+import { AuthGuard } from "../auth/guards/auth.guard";
+import { RolesGuard } from "../auth/guards/roles.guard";
+import { AuthenticatedRequest } from "../common/interfaces/request.interface";
+import { UsersController } from "./users.controller";
+import { UsersService } from "./users.service";
+
+describe("UsersController", () => {
+	let controller: UsersController;
+	let usersService: UsersService;
+	let authService: AuthService;
+
+	const mockUsersService = {
+		findAll: jest.fn(),
+		findPublicProfile: jest.fn(),
+		findOneWithPrivateData: jest.fn(),
+		exportUserData: jest.fn(),
+		update: jest.fn(),
+		updateAvatar: jest.fn(),
+		updateConsent: jest.fn(),
+		remove: jest.fn(),
+	};
+
+	const mockAuthService = {
+		generateTwoFactorSecret: jest.fn(),
+		enableTwoFactor: jest.fn(),
+		disableTwoFactor: jest.fn(),
+	};
+
+	const mockCacheManager = {
+		get: jest.fn(),
+		set: jest.fn(),
+	};
+
+	beforeEach(async () => {
+		const module: TestingModule = await Test.createTestingModule({
+			controllers: [UsersController],
+			providers: [
+				{ provide: UsersService, useValue: mockUsersService },
+				{ provide: AuthService, useValue: mockAuthService },
+				{ provide: CACHE_MANAGER, useValue: mockCacheManager },
+			],
+		})
+			.overrideGuard(AuthGuard)
+			.useValue({ canActivate: () => true })
+			.overrideGuard(RolesGuard)
+			.useValue({ canActivate: () => true })
+			.compile();
+
+		controller = module.get<UsersController>(UsersController);
+		usersService = module.get<UsersService>(UsersService);
+		authService = module.get<AuthService>(AuthService);
+	});
+
+	it("should be defined", () => {
+		expect(controller).toBeDefined();
+	});
+
+	describe("findAll", () => {
+		it("should call usersService.findAll", async () => {
+			await controller.findAll(10, 0);
+			expect(usersService.findAll).toHaveBeenCalledWith(10, 0);
+		});
+	});
+
+	describe("findPublicProfile", () => {
+		it("should call usersService.findPublicProfile", async () => {
+			await controller.findPublicProfile("testuser");
+			expect(usersService.findPublicProfile).toHaveBeenCalledWith("testuser");
+		});
+	});
+
+	describe("findMe", () => {
+		it("should call usersService.findOneWithPrivateData", async () => {
+			const req = { user: { sub: "user-uuid" } } as AuthenticatedRequest;
+			await controller.findMe(req);
+			expect(usersService.findOneWithPrivateData).toHaveBeenCalledWith(
+				"user-uuid",
+			);
+		});
+	});
+
+	describe("exportMe", () => {
+		it("should call usersService.exportUserData", async () => {
+			const req = { user: { sub: "user-uuid" } } as AuthenticatedRequest;
+			await controller.exportMe(req);
+			expect(usersService.exportUserData).toHaveBeenCalledWith("user-uuid");
+		});
+	});
+
+	describe("updateMe", () => {
+		it("should call usersService.update", async () => {
+			const req = { user: { sub: "user-uuid" } } as AuthenticatedRequest;
+			const dto = { displayName: "New Name" };
+			await controller.updateMe(req, dto);
+			expect(usersService.update).toHaveBeenCalledWith("user-uuid", dto);
+		});
+	});
+
+	describe("updateAvatar", () => {
+		it("should call usersService.updateAvatar", async () => {
+			const req = { user: { sub: "user-uuid" } } as AuthenticatedRequest;
+			const file = {} as Express.Multer.File;
+			await controller.updateAvatar(req, file);
+			expect(usersService.updateAvatar).toHaveBeenCalledWith("user-uuid", file);
+		});
+	});
+
+	describe("updateConsent", () => {
+		it("should call usersService.updateConsent", async () => {
+			const req = { user: { sub: "user-uuid" } } as AuthenticatedRequest;
+			const dto = { termsVersion: "1.0", privacyVersion: "1.0" };
+			await controller.updateConsent(req, dto);
+			expect(usersService.updateConsent).toHaveBeenCalledWith(
+				"user-uuid",
+				"1.0",
+				"1.0",
+			);
+		});
+	});
+
+	describe("removeMe", () => {
+		it("should call usersService.remove", async () => {
+			const req = { user: { sub: "user-uuid" } } as AuthenticatedRequest;
+			await controller.removeMe(req);
+			expect(usersService.remove).toHaveBeenCalledWith("user-uuid");
+		});
+	});
+
+	describe("removeAdmin", () => {
+		it("should call usersService.remove", async () => {
+			await controller.removeAdmin("target-uuid");
+			expect(usersService.remove).toHaveBeenCalledWith("target-uuid");
+		});
+	});
+
+	describe("setup2fa", () => {
+		it("should call authService.generateTwoFactorSecret", async () => {
+			const req = { user: { sub: "user-uuid" } } as AuthenticatedRequest;
+			await controller.setup2fa(req);
+			expect(authService.generateTwoFactorSecret).toHaveBeenCalledWith(
+				"user-uuid",
+			);
+		});
+	});
+
+	describe("enable2fa", () => {
+		it("should call authService.enableTwoFactor", async () => {
+			const req = { user: { sub: "user-uuid" } } as AuthenticatedRequest;
+			await controller.enable2fa(req, "token123");
+			expect(authService.enableTwoFactor).toHaveBeenCalledWith(
+				"user-uuid",
+				"token123",
+			);
+		});
+	});
+
+	describe("disable2fa", () => {
+		it("should call authService.disableTwoFactor", async () => {
+			const req = { user: { sub: "user-uuid" } } as AuthenticatedRequest;
+			await controller.disable2fa(req, "token123");
+			expect(authService.disableTwoFactor).toHaveBeenCalledWith(
+				"user-uuid",
+				"token123",
+			);
+		});
+	});
+});