feat: Add unit tests for resolvers and services, update dependencies, and remove unused scripts.

src/resolvers/queries/home.spec.ts

@@ -0,0 +1,91 @@
+import { env } from "cloudflare:workers";
+import { GraphQLError } from "graphql";
+import { describe, expect, it, vi } from "vitest";
+
+import type { GraphQLContext } from "~/context";
+
+import { home } from "./home";
+
+enum HomeCategory {
+  WATCHING,
+  PLANNING,
+}
+
+describe("home resolver", () => {
+  const mockContext = {
+    user: { name: "testuser" },
+    aniListToken: "test-token",
+  } as GraphQLContext;
+
+  it("should fetch WATCHING titles using CURRENT status filter", async () => {
+    const mockResponse = { some: "data" };
+    const mockStub = {
+      getTitles: vi.fn().mockResolvedValue(mockResponse),
+    };
+
+    // @ts-expect-error - Partial mock
+    env.ANILIST_DO = {
+      getByName: vi.fn().mockResolvedValue(mockStub),
+    };
+
+    const result = await home(
+      null,
+      { category: HomeCategory.WATCHING },
+      mockContext,
+    );
+
+    expect(result).toEqual(mockResponse);
+    expect(env.ANILIST_DO.getByName).toHaveBeenCalledWith("GLOBAL");
+    expect(mockStub.getTitles).toHaveBeenCalledWith(
+      "testuser",
+      1,
+      ["CURRENT"],
+      "test-token",
+    );
+  });
+
+  it("should fetch PLANNING titles using PLANNING, PAUSED, REPEATING status filters", async () => {
+    const mockResponse = { some: "data" };
+    const mockStub = {
+      getTitles: vi.fn().mockResolvedValue(mockResponse),
+    };
+
+    // @ts-expect-error - Partial mock
+    env.ANILIST_DO = {
+      getByName: vi.fn().mockResolvedValue(mockStub),
+    };
+
+    const result = await home(
+      null,
+      { category: HomeCategory.PLANNING, page: 2 },
+      mockContext,
+    );
+
+    expect(result).toEqual(mockResponse);
+    expect(mockStub.getTitles).toHaveBeenCalledWith(
+      "testuser",
+      2,
+      ["PLANNING", "PAUSED", "REPEATING"],
+      "test-token",
+    );
+  });
+
+  it("should throw GraphQLError if Durable Object response is null", async () => {
+    const mockStub = {
+      getTitles: vi.fn().mockResolvedValue(null),
+    };
+
+    // @ts-expect-error - Partial mock
+    env.ANILIST_DO = {
+      getByName: vi.fn().mockResolvedValue(mockStub),
+    };
+
+    await expect(
+      home(null, { category: HomeCategory.WATCHING }, mockContext),
+    ).rejects.toThrow(
+      new GraphQLError("Failed to fetch 0 titles", {
+        extensions: { code: "INTERNAL_SERVER_ERROR" },
+      }),
+    );
+  });
+});