refactor(hooks): replace useGithubApi with useGithubRepoMeta

* use GraphQL API instead of REST (the inconvenient however is that we
now need an authorization token...)
* move fetcher in services
* add tests
* mock response using MSW

1 files changed, 59 insertions, 0 deletions

diff --git a/src/utils/hooks/use-github-repo-meta/use-github-repo-meta.test.ts b/src/utils/hooks/use-github-repo-meta/use-github-repo-meta.test.ts
new file mode 100644
index 0000000..d796f69
--- /dev/null
+++ b/src/utils/hooks/use-github-repo-meta/use-github-repo-meta.test.ts
@@ -0,0 +1,59 @@
+import {
+  afterEach,
+  beforeEach,
+  describe,
+  expect,
+  it,
+  jest,
+} from '@jest/globals';
+import { renderHook, waitFor } from '@testing-library/react';
+import { githubRepos } from '../../../../tests/fixtures';
+import { useGithubRepoMeta } from './use-github-repo-meta';
+
+describe('useGithubRepoMeta', () => {
+  beforeEach(() => {
+    /* Not sure why it is needed, but without it Jest was complaining with
+     * `Jest worker encountered 4 child process exceptions`... Maybe because of
+     * useSWR? */
+    jest.useFakeTimers({
+      doNotFake: ['queueMicrotask'],
+    });
+  });
+
+  afterEach(() => {
+    jest.runOnlyPendingTimers();
+    jest.useRealTimers();
+  });
+
+  /* eslint-disable max-statements */
+  it('fetches the requested repository', async () => {
+    const { result } = renderHook(() =>
+      useGithubRepoMeta({
+        name: githubRepos[0].name,
+        owner: githubRepos[0].owner,
+      })
+    );
+
+    // Inaccurate assertions count because of waitFor...
+    //expect.assertions(11);
+    expect.hasAssertions();
+
+    expect(result.current.meta).toBeUndefined();
+    expect(result.current.isError).toBe(false);
+    expect(result.current.isLoading).toBe(true);
+    expect(result.current.isValidating).toBe(true);
+
+    jest.advanceTimersToNextTimer();
+
+    await waitFor(() => expect(result.current.meta).toBeDefined());
+    expect(result.current.meta?.createdAt).toBe(githubRepos[0].createdAt);
+    expect(result.current.meta?.stargazerCount).toBe(
+      githubRepos[0].stargazerCount
+    );
+    expect(result.current.meta?.updatedAt).toBe(githubRepos[0].updatedAt);
+    expect(result.current.isError).toBe(false);
+    expect(result.current.isLoading).toBe(false);
+    expect(result.current.isValidating).toBe(false);
+  });
+  /* eslint-enable max-statements */
+});