feat: add test coverage for upload file messages (posts)

src/store/posts/saga.test.ts

@@ -148,6 +148,52 @@ describe(createOptimisticPost, () => {
   });
 });
 
+describe(uploadFileMessages, () => {
+  it('uploads an uploadable file', async () => {
+    const imageCreationResponse = { id: 'image-message-id', optimisticId: 'optimistic-id' };
+    const upload = jest.fn().mockReturnValue(imageCreationResponse);
+    const uploadable = { upload, optimisticMessage: { id: 'optimistic-id' } } as any;
+    const channelId = 'channel-id';
+
+    const initialState = new StoreBuilder().withConversationList({
+      id: channelId,
+      messages: [{ id: 'optimistic-id' } as any],
+    });
+
+    const { storeState } = await expectSaga(uploadFileMessages, channelId, '', [uploadable], true)
+      .withReducer(rootReducer, initialState.build())
+      .run();
+
+    const channel = denormalizeChannel(channelId, storeState);
+    expect(channel.messages).toHaveLength(1);
+    expect(channel.messages[0].id).toEqual('optimistic-id');
+  });
+
+  it('first media file sets its rootMessageId', async () => {
+    const imageCreationResponse = { id: 'image-message-id' };
+    const upload1 = jest.fn().mockReturnValue(imageCreationResponse);
+    const upload2 = jest.fn().mockReturnValue(imageCreationResponse);
+    const uploadable1 = { upload: upload1, optimisticMessage: { id: 'id-1' } } as any;
+    const uploadable2 = { upload: upload2, optimisticMessage: { id: 'id-2' } } as any;
+    const channelId = 'channel-id';
+    const rootMessageId = 'root-message-id';
+
+    await expectSaga(
+      uploadFileMessages,
+      channelId,
+      rootMessageId,
+      [
+        uploadable1,
+        uploadable2,
+      ],
+      true
+    ).run();
+
+    expect(upload1).toHaveBeenCalledWith(channelId, rootMessageId, true);
+    expect(upload2).toHaveBeenCalledWith(channelId, '', true);
+  });
+});
+
 describe(fetchPosts, () => {
   function subject(...args: Parameters<typeof expectSaga>) {
     return expectSaga(...args).provide([

src/store/posts/saga.ts

@@ -1,4 +1,4 @@
-import { takeLatest, call, put, select } from 'redux-saga/effects';
+import { takeLatest, call, select } from 'redux-saga/effects';
 import uniqBy from 'lodash.uniqby';
 
 import { SagaActionTypes } from '.';