add tests

src/store/messages/utils.matrix.test.ts

@@ -0,0 +1,144 @@
+import { expectSaga } from 'redux-saga-test-plan';
+import * as matchers from 'redux-saga-test-plan/matchers';
+
+import { mapMessageSenders } from './utils.matrix';
+import { getZEROUsers } from '../channels-list/api';
+import { chat } from '../../lib/chat';
+
+const featureFlags = { enableMatrix: true };
+jest.mock('../../lib/feature-flags', () => ({
+  featureFlags: featureFlags,
+}));
+
+const chatClient = { getMessageByRoomId: () => {} };
+
+describe(mapMessageSenders, () => {
+  let messages: any;
+  let users: any;
+
+  beforeEach(() => {
+    users = [
+      {
+        userId: 'user-1',
+        matrixId: 'matrix-user-1',
+        firstName: 'Test',
+        lastName: 'User 1',
+        profileImage: 'image-url-1',
+      },
+      {
+        userId: 'user-2',
+        matrixId: 'matrix-user-2',
+        firstName: 'Test',
+        lastName: 'User 2',
+        profileImage: 'image-url-2',
+      },
+    ];
+
+    messages = [
+      { id: 1, message: 'message-1', sender: { userId: 'matrix-user-1', firstName: '' } },
+      { id: 2, message: 'message-2', sender: { userId: 'matrix-user-2', firstName: '' } },
+    ];
+  });
+
+  it('calls getZEROUsersAPI with matrixIds if users are not present in local redux state', async () => {
+    const initialState = {
+      normalized: {
+        users: {
+          'user-1': users[0],
+        },
+      },
+    };
+
+    await expectSaga(mapMessageSenders, messages, 'channel-id')
+      .withState(initialState)
+      .call(getZEROUsers, ['matrix-user-2'])
+      .run();
+  });
+
+  it('maps message senders to ZERO users if present in state', async () => {
+    const initialState = {
+      normalized: {
+        users: {
+          'user-1': users[0],
+          'user-2': users[1],
+        },
+      },
+    };
+
+    await expectSaga(mapMessageSenders, messages, 'channel-id').withState(initialState).run();
+
+    expect(messages[0].sender).toEqual({
+      userId: 'user-1',
+      matrixId: 'matrix-user-1',
+      firstName: 'Test',
+      lastName: 'User 1',
+      profileImage: 'image-url-1',
+    });
+    expect(messages[1].sender).toEqual({
+      userId: 'user-2',
+      matrixId: 'matrix-user-2',
+      firstName: 'Test',
+      lastName: 'User 2',
+      profileImage: 'image-url-2',
+    });
+  });
+
+  it('sets the parentMessage to message if present in state', async () => {
+    const initialState = {
+      normalized: {
+        users: {
+          'user-1': users[0],
+          'user-2': users[1],
+        },
+      },
+    };
+
+    const parentMessage = messages[0];
+    messages[1].parentMessageId = parentMessage.id; // make 2nd message in the list a reply to the first
+
+    await expectSaga(mapMessageSenders, messages, 'channel-id').withState(initialState).run();
+
+    expect(messages[1].parentMessage).toEqual(messages[0]); // check if the parent message is assigned properly
+  });
+
+  it('calls matrix API to fetch parent message if not present in state', async () => {
+    const initialState = {
+      normalized: {
+        users: {
+          'user-1': users[0],
+          'user-2': users[1],
+        },
+      },
+    };
+
+    const oldMessage = {
+      id: 'some-very-old-message-id',
+      sender: { userId: 'matrix-user-1', firstName: '' },
+      message: 'parent message',
+    };
+    messages[1].parentMessageId = oldMessage.id; // 2nd message's parent is a very old message (so not present in current list)
+
+    await expectSaga(mapMessageSenders, messages, 'channel-id')
+      .provide([
+        [matchers.call.fn(chat.get), chatClient],
+        [matchers.call.fn(chatClient.getMessageByRoomId), oldMessage],
+      ])
+      .withState(initialState)
+      .call(chat.get)
+      .call([chatClient, chatClient.getMessageByRoomId], 'channel-id', 'some-very-old-message-id')
+      .run();
+
+    expect(messages[1].parentMessage).toEqual({
+      id: 'some-very-old-message-id',
+      // parent message's sender is also mapped to a ZERO user
+      sender: {
+        userId: 'user-1',
+        matrixId: 'matrix-user-1',
+        firstName: 'Test',
+        lastName: 'User 1',
+        profileImage: 'image-url-1',
+      },
+      message: 'parent message',
+    });
+  });
+});