Set up custom navigation history for component test

packages/app/app/containers/PlaylistViewContainer/PlaylistViewContainer.test.tsx

@@ -6,7 +6,13 @@ import { createMemoryHistory } from 'history';
 import { store as electronStore } from '@nuclear/core';
 
 import { buildElectronStoreState, buildStoreState } from '../../../test/storeBuilders';
-import { AnyProps, configureMockStore, setupI18Next, TestRouterProvider, TestStoreProvider } from '../../../test/testUtils';
+import {
+  AnyProps,
+  configureMockStore,
+  setupI18Next,
+  TestRouterProvider,
+  TestStoreProvider
+} from '../../../test/testUtils';
 import MainContentContainer from '../MainContentContainer';
 import { onReorder } from '.';
 
@@ -185,7 +191,13 @@ describe('Playlist view container', () => {
   });
 
   it('should delete a single track from the playlist', async () => {
-    const { component, store } = mountComponent();
+    const { component, history, store } = mountComponent(
+      undefined,
+      [
+        '/playlist/test-playlist-id',
+        '/previous-location'
+      ]
+    );
     await waitFor(() => component.getAllByTestId('delete-button')[0].click());
 
     const state = store.getState();
@@ -196,6 +208,9 @@ describe('Playlist view container', () => {
         name: 'test track 22'
       })
     ]);
+    // FIXME: the expectations below don't work because the history instance is only the initial state, and not the modified state
+    expect(history.length).toBe(1);
+    expect(history.location).toBe('/previous-location');
   });
 
   it('should delete a single track from the playlist when there are its duplicates', async () => {
@@ -242,7 +257,7 @@ describe('Playlist view container', () => {
     ]);
   });
 
-  const mountComponent = (initialStore?: AnyProps, initStore = true) => {
+  const mountComponent = (initialStore?: AnyProps, initialHistory?: string[], initStore = true) => {
     const initialState = initialStore ||
       buildStoreState()
         .withPlugins()
@@ -257,7 +272,7 @@ describe('Playlist view container', () => {
     });
 
     const history = createMemoryHistory({
-      initialEntries: ['/playlist/test-playlist-id']
+      initialEntries: initialHistory || ['/playlist/test-playlist-id']
     });
 
     const store = configureMockStore(initialState);