test(services): add tests for posts fetchers

1 files changed, 26 insertions, 0 deletions

diff --git a/tests/msw/handlers/posts/posts-slugs.handler.ts b/tests/msw/handlers/posts/posts-slugs.handler.ts
new file mode 100644
index 0000000..9aadddb
--- /dev/null
+++ b/tests/msw/handlers/posts/posts-slugs.handler.ts
@@ -0,0 +1,26 @@
+import { type ExecutionResult, graphql as executeGraphql } from 'graphql';
+import { HttpResponse, graphql } from 'msw';
+import type { PostsSlugsResponse } from '../../../../src/services/graphql';
+import { wpPostsFixture } from '../../../fixtures';
+import { schema } from '../../schema';
+
+export const postsSlugsHandler = graphql.query<
+  PostsSlugsResponse,
+  Record<'first', number>
+>('PostsSlugs', async ({ query, variables }) => {
+  const pageParams = new URLSearchParams(window.location.search);
+  const isError = pageParams.get('error') === 'true';
+
+  if (isError) return HttpResponse.json({ data: { posts: null } });
+
+  const { data, errors } = (await executeGraphql({
+    schema,
+    source: query,
+    variableValues: variables,
+    rootValue: {
+      posts: { nodes: wpPostsFixture },
+    },
+  })) as ExecutionResult<PostsSlugsResponse>;
+
+  return HttpResponse.json({ data, errors });
+});