complete unit testing of redux and api layers

webclient/src/store/rooms/rooms.dispatch.spec.ts

@@ -0,0 +1,90 @@
+jest.mock('store/store', () => ({ store: { dispatch: jest.fn() } }));
+jest.mock('redux-form', () => ({
+  reset: jest.fn((form) => ({ type: '@@redux-form/RESET', meta: { form } })),
+}));
+
+import { store } from 'store/store';
+import { reset } from 'redux-form';
+import { Actions } from './rooms.actions';
+import { Dispatch } from './rooms.dispatch';
+import { makeGame, makeMessage, makeRoom, makeUser } from './__mocks__/rooms-fixtures';
+import { GameSortField, SortDirection } from 'types';
+
+beforeEach(() => jest.clearAllMocks());
+
+describe('Dispatch', () => {
+  it('clearStore dispatches Actions.clearStore()', () => {
+    Dispatch.clearStore();
+    expect(store.dispatch).toHaveBeenCalledWith(Actions.clearStore());
+  });
+
+  it('updateRooms dispatches Actions.updateRooms()', () => {
+    const rooms = [makeRoom()];
+    Dispatch.updateRooms(rooms);
+    expect(store.dispatch).toHaveBeenCalledWith(Actions.updateRooms(rooms));
+  });
+
+  it('joinRoom dispatches Actions.joinRoom()', () => {
+    const roomInfo = makeRoom({ roomId: 2 });
+    Dispatch.joinRoom(roomInfo);
+    expect(store.dispatch).toHaveBeenCalledWith(Actions.joinRoom(roomInfo));
+  });
+
+  it('leaveRoom dispatches Actions.leaveRoom()', () => {
+    Dispatch.leaveRoom(3);
+    expect(store.dispatch).toHaveBeenCalledWith(Actions.leaveRoom(3));
+  });
+
+  it('addMessage with message.name falsy → dispatches only Actions.addMessage()', () => {
+    const message = { ...makeMessage(), name: undefined };
+    Dispatch.addMessage(1, message);
+    expect(store.dispatch).toHaveBeenCalledTimes(1);
+    expect(store.dispatch).toHaveBeenCalledWith(Actions.addMessage(1, message));
+  });
+
+  it('addMessage with message.name truthy → dispatches reset("sayMessage") then Actions.addMessage()', () => {
+    const message = { ...makeMessage(), name: 'Alice' };
+    Dispatch.addMessage(1, message);
+    expect(store.dispatch).toHaveBeenNthCalledWith(1, (reset as jest.Mock)('sayMessage'));
+    expect(store.dispatch).toHaveBeenNthCalledWith(2, Actions.addMessage(1, message));
+  });
+
+  it('updateGames dispatches Actions.updateGames()', () => {
+    const games = [makeGame()];
+    Dispatch.updateGames(1, games);
+    expect(store.dispatch).toHaveBeenCalledWith(Actions.updateGames(1, games));
+  });
+
+  it('userJoined dispatches Actions.userJoined()', () => {
+    const user = makeUser();
+    Dispatch.userJoined(1, user);
+    expect(store.dispatch).toHaveBeenCalledWith(Actions.userJoined(1, user));
+  });
+
+  it('userLeft dispatches Actions.userLeft()', () => {
+    Dispatch.userLeft(1, 'Alice');
+    expect(store.dispatch).toHaveBeenCalledWith(Actions.userLeft(1, 'Alice'));
+  });
+
+  it('sortGames dispatches Actions.sortGames()', () => {
+    Dispatch.sortGames(1, GameSortField.START_TIME, SortDirection.ASC);
+    expect(store.dispatch).toHaveBeenCalledWith(
+      Actions.sortGames(1, GameSortField.START_TIME, SortDirection.ASC)
+    );
+  });
+
+  it('removeMessages dispatches Actions.removeMessages()', () => {
+    Dispatch.removeMessages(1, 'Alice', 5);
+    expect(store.dispatch).toHaveBeenCalledWith(Actions.removeMessages(1, 'Alice', 5));
+  });
+
+  it('gameCreated dispatches Actions.gameCreated()', () => {
+    Dispatch.gameCreated(2);
+    expect(store.dispatch).toHaveBeenCalledWith(Actions.gameCreated(2));
+  });
+
+  it('joinedGame dispatches Actions.joinedGame()', () => {
+    Dispatch.joinedGame(1, 5);
+    expect(store.dispatch).toHaveBeenCalledWith(Actions.joinedGame(1, 5));
+  });
+});