5 files changed, 143 insertions, 0 deletions
diff --git a/tests/msw/handlers/topics/index.ts b/tests/msw/handlers/topics/index.ts
new file mode 100644
index 0000000..e29694b
--- /dev/null
+++ b/tests/msw/handlers/topics/index.ts
@@ -0,0 +1,11 @@
+import { topicHandler } from './topic.handler';
+import { topicsCountHandler } from './topics-count.handler';
+import { topicsListHandler } from './topics-list.handler';
+import { topicsSlugsHandler } from './topics-slugs.handler';
+
+export const topicsHandlers = [
+  topicHandler,
+  topicsCountHandler,
+  topicsListHandler,
+  topicsSlugsHandler,
+];
diff --git a/tests/msw/handlers/topics/topic.handler.ts b/tests/msw/handlers/topics/topic.handler.ts
new file mode 100644
index 0000000..5df00ea
--- /dev/null
+++ b/tests/msw/handlers/topics/topic.handler.ts
@@ -0,0 +1,21 @@
+import { type ExecutionResult, graphql as executeGraphql } from 'graphql';
+import { HttpResponse, graphql } from 'msw';
+import type { TopicResponse } from '../../../../src/services/graphql';
+import { wpTopicsFixture } from '../../../fixtures';
+import { schema } from '../../schema';
+
+export const topicHandler = graphql.query<
+  TopicResponse,
+  Record<'slug', string>
+>('Topic', async ({ query, variables }) => {
+  const { data, errors } = (await executeGraphql({
+    schema,
+    source: query,
+    variableValues: variables,
+    rootValue: {
+      topic: wpTopicsFixture.find((wpTopic) => wpTopic.slug === variables.slug),
+    },
+  })) as ExecutionResult<TopicResponse>;
+
+  return HttpResponse.json({ data, errors });
+});
diff --git a/tests/msw/handlers/topics/topics-count.handler.ts b/tests/msw/handlers/topics/topics-count.handler.ts
new file mode 100644
index 0000000..7e3dab9
--- /dev/null
+++ b/tests/msw/handlers/topics/topics-count.handler.ts
@@ -0,0 +1,43 @@
+import { type ExecutionResult, graphql as executeGraphql } from 'graphql';
+import { HttpResponse, graphql } from 'msw';
+import type { TopicsCountResponse } from '../../../../src/services/graphql';
+import type { GraphQLPostWhere } from '../../../../src/types';
+import { wpTopicsFixture } from '../../../fixtures';
+import { getConnection } from '../../../utils/graphql';
+import { schema } from '../../schema';
+
+export const topicsCountHandler = graphql.query<
+  TopicsCountResponse,
+  GraphQLPostWhere
+>('TopicsCount', async ({ query, variables }) => {
+  const pageParams = new URLSearchParams(window.location.search);
+  const isError = pageParams.get('error') === 'true';
+
+  if (isError) return HttpResponse.json({ data: { topics: null } });
+
+  const { data, errors } = (await executeGraphql({
+    schema,
+    source: query,
+    variableValues: variables,
+    rootValue: {
+      topics({ search, title }: typeof variables) {
+        const filteredTopicsByTitle = title
+          ? wpTopicsFixture.filter((topic) => topic.title.includes(title))
+          : wpTopicsFixture;
+        const filteredTopics = search
+          ? filteredTopicsByTitle.filter((topic) =>
+              topic.title.includes(search)
+            )
+          : filteredTopicsByTitle;
+
+        return getConnection({
+          after: null,
+          data: filteredTopics,
+          first: undefined,
+        });
+      },
+    },
+  })) as ExecutionResult<TopicsCountResponse>;
+
+  return HttpResponse.json({ data, errors });
+});
diff --git a/tests/msw/handlers/topics/topics-list.handler.ts b/tests/msw/handlers/topics/topics-list.handler.ts
new file mode 100644
index 0000000..5e3e31a
--- /dev/null
+++ b/tests/msw/handlers/topics/topics-list.handler.ts
@@ -0,0 +1,42 @@
+import { type ExecutionResult, graphql as executeGraphql } from 'graphql';
+import { HttpResponse, graphql } from 'msw';
+import type {
+  FetchTopicsListInput,
+  TopicsListResponse,
+} from '../../../../src/services/graphql';
+import { wpTopicsFixture } from '../../../fixtures';
+import { getConnection } from '../../../utils/graphql';
+import { schema } from '../../schema';
+
+export const topicsListHandler = graphql.query<
+  TopicsListResponse,
+  FetchTopicsListInput
+>('TopicsList', async ({ query, variables }) => {
+  const pageParams = new URLSearchParams(window.location.search);
+  const isError = pageParams.get('error') === 'true';
+
+  if (isError) return HttpResponse.json({ data: { topics: null } });
+
+  const { data, errors } = (await executeGraphql({
+    schema,
+    source: query,
+    variableValues: variables,
+    rootValue: {
+      topics({ after, first, where }: typeof variables) {
+        const { search, title } = where ?? {};
+        const filteredTopicsByTitle = title
+          ? wpTopicsFixture.filter((topic) => topic.title.includes(title))
+          : wpTopicsFixture;
+        const filteredTopics = search
+          ? filteredTopicsByTitle.filter((topic) =>
+              topic.title.includes(search)
+            )
+          : filteredTopicsByTitle;
+
+        return getConnection({ after, data: filteredTopics, first });
+      },
+    },
+  })) as ExecutionResult<TopicsListResponse>;
+
+  return HttpResponse.json({ data, errors });
+});
diff --git a/tests/msw/handlers/topics/topics-slugs.handler.ts b/tests/msw/handlers/topics/topics-slugs.handler.ts
new file mode 100644
index 0000000..960e411
--- /dev/null
+++ b/tests/msw/handlers/topics/topics-slugs.handler.ts
@@ -0,0 +1,26 @@
+import { type ExecutionResult, graphql as executeGraphql } from 'graphql';
+import { HttpResponse, graphql } from 'msw';
+import type { TopicsSlugsResponse } from '../../../../src/services/graphql';
+import { wpTopicsFixture } from '../../../fixtures';
+import { schema } from '../../schema';
+
+export const topicsSlugsHandler = graphql.query<
+  TopicsSlugsResponse,
+  Record<'first', number>
+>('TopicsSlugs', async ({ query, variables }) => {
+  const pageParams = new URLSearchParams(window.location.search);
+  const isError = pageParams.get('error') === 'true';
+
+  if (isError) return HttpResponse.json({ data: { topics: null } });
+
+  const { data, errors } = (await executeGraphql({
+    schema,
+    source: query,
+    variableValues: variables,
+    rootValue: {
+      topics: { nodes: wpTopicsFixture },
+    },
+  })) as ExecutionResult<TopicsSlugsResponse>;
+
+  return HttpResponse.json({ data, errors });
+});