fix(services,types): make queries and types coherent for Topic

* some nodes was missing in topicQuery
* a node was mispelled in topicsListQuery
* add tests for all topics fetchers

1 files changed, 26 insertions, 0 deletions

diff --git a/src/services/graphql/fetchers/topics/fetch-topics-count.test.ts b/src/services/graphql/fetchers/topics/fetch-topics-count.test.ts
new file mode 100644
index 0000000..0e3bb90
--- /dev/null
+++ b/src/services/graphql/fetchers/topics/fetch-topics-count.test.ts
@@ -0,0 +1,26 @@
+import { afterEach, describe, expect, it } from '@jest/globals';
+import { wpTopicsFixture } from '../../../../../tests/fixtures';
+import { fetchTopicsCount } from './fetch-topics-count';
+
+describe('fetch-topics-count', () => {
+  afterEach(() => {
+    window.history.replaceState({}, '', '/');
+  });
+
+  it('returns the WordPress topics count using GraphQL', async () => {
+    const result = await fetchTopicsCount();
+
+    expect.assertions(1);
+
+    expect(result).toBe(wpTopicsFixture.length);
+  });
+
+  it('rejects with an error when no topics are found', async () => {
+    window.history.replaceState({}, '', '/?error=true');
+    expect.assertions(1);
+
+    await expect(async () => fetchTopicsCount()).rejects.toEqual(
+      new Error('Unable to find the total number of topics.')
+    );
+  });
+});