[Backport 2.x] [Dashboard De-Angular] Add more unit tests for utils folder

src/plugins/dashboard/public/application/utils/breadcrumbs.test.tsx

@@ -0,0 +1,45 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ *
+ * Any modifications Copyright OpenSearch Contributors. See
+ * GitHub history for details.
+ */
+
+import { ViewMode } from 'src/plugins/embeddable/public';
+import { setBreadcrumbsForExistingDashboard, setBreadcrumbsForNewDashboard } from './breadcrumbs';
+
+describe('breadcrumbs for ', () => {
+  test('new dashboard in view mode', () => {
+    const text = setBreadcrumbsForNewDashboard(ViewMode.VIEW, false);
+    expect(text[1].text).toBe('New Dashboard');
+  });
+
+  test('new dashboard in edit mode without unsaved changes', () => {
+    const text = setBreadcrumbsForNewDashboard(ViewMode.EDIT, false);
+    expect(text[1].text).toBe('Editing New Dashboard');
+  });
+
+  test('new dashboard in edit mode with unsaved changes', () => {
+    const text = setBreadcrumbsForNewDashboard(ViewMode.EDIT, true);
+    expect(text[1].text).toBe('Editing New Dashboard (unsaved)');
+  });
+
+  test('existing dashboard in view mode', () => {
+    const text = setBreadcrumbsForExistingDashboard('dashboard name', ViewMode.VIEW, false);
+    expect(text[1].text).toBe('dashboard name');
+  });
+
+  test('existing dashboard in edit mode without unsaved changes', () => {
+    const text = setBreadcrumbsForExistingDashboard('dashboard name', ViewMode.EDIT, false);
+    expect(text[1].text).toBe('Editing dashboard name');
+  });
+
+  test('existing dashboard in edit mode with unsaved changes', () => {
+    const text = setBreadcrumbsForExistingDashboard('dashboard name', ViewMode.EDIT, true);
+    expect(text[1].text).toBe('Editing dashboard name (unsaved)');
+  });
+});

src/plugins/dashboard/public/application/utils/create_dashboard_app_state.test.tsx

@@ -0,0 +1,159 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ *
+ * Any modifications Copyright OpenSearch Contributors. See
+ * GitHub history for details.
+ */
+
+import { IOsdUrlStateStorage } from 'src/plugins/opensearch_dashboards_utils/public';
+import { createDashboardGlobalAndAppState, updateStateUrl } from './create_dashboard_app_state';
+import { migrateAppState } from './migrate_app_state';
+import { dashboardAppStateStub } from './stubs';
+import { createDashboardServicesMock } from './mocks';
+import { SavedObjectDashboard } from '../..';
+import { syncQueryStateWithUrl } from 'src/plugins/data/public';
+import { ViewMode } from 'src/plugins/embeddable/public';
+
+const mockStartStateSync = jest.fn();
+const mockStopStateSync = jest.fn();
+const mockStopQueryStateSync = jest.fn();
+
+jest.mock('../../../../opensearch_dashboards_utils/public', () => ({
+  createStateContainer: jest.fn(() => 'stateContainer'),
+  syncState: jest.fn(() => ({
+    start: mockStartStateSync,
+    stop: mockStopStateSync,
+  })),
+}));
+
+jest.mock('../../../../data/public', () => ({
+  syncQueryStateWithUrl: jest.fn(() => ({
+    stop: mockStopQueryStateSync,
+  })),
+}));
+
+jest.mock('./migrate_app_state', () => ({
+  migrateAppState: jest.fn(() => 'migratedAppState'),
+}));
+
+const { createStateContainer, syncState } = jest.requireMock(
+  '../../../../opensearch_dashboards_utils/public'
+);
+
+const osdUrlStateStorage = ({
+  set: jest.fn(),
+  get: jest.fn(() => ({ linked: false })),
+  flush: jest.fn(),
+} as unknown) as IOsdUrlStateStorage;
+
+describe('createDashboardGlobalAndAppState', () => {
+  const mockServices = createDashboardServicesMock();
+
+  const savedDashboardInstance = {
+    id: '',
+    timeRestore: true,
+    lastSavedTitle: 'title',
+    searchSource: {},
+    getQuery: () => {},
+    getFilters: () => {},
+  } as SavedObjectDashboard;
+
+  const {
+    stateContainer,
+    stopStateSync,
+    stopSyncingQueryServiceStateWithUrl,
+  } = createDashboardGlobalAndAppState({
+    stateDefaults: dashboardAppStateStub,
+    osdUrlStateStorage,
+    services: mockServices,
+    savedDashboardInstance,
+  });
+  const transitions = createStateContainer.mock.calls[0][1];
+
+  test('should initialize dashboard app state', () => {
+    expect(osdUrlStateStorage.get).toHaveBeenCalledWith('_a');
+    expect(migrateAppState).toHaveBeenCalledWith(
+      {
+        ...dashboardAppStateStub,
+        linked: false,
+      },
+      mockServices.opensearchDashboardsVersion,
+      mockServices.usageCollection
+    );
+    expect(osdUrlStateStorage.set).toHaveBeenCalledWith('_a', 'migratedAppState', {
+      replace: true,
+    });
+    expect(createStateContainer).toHaveBeenCalled();
+    expect(syncState).toHaveBeenCalled();
+    expect(syncQueryStateWithUrl).toHaveBeenCalled();
+    expect(mockStartStateSync).toHaveBeenCalled();
+  });
+
+  test('should return the stateContainer and stopStateSync and stopSyncingQueryServiceStateWithUrl', () => {
+    expect(stateContainer).toBe('stateContainer');
+    stopStateSync();
+    stopSyncingQueryServiceStateWithUrl();
+    expect(stopStateSync).toHaveBeenCalledTimes(1);
+    expect(stopSyncingQueryServiceStateWithUrl).toHaveBeenCalledTimes(1);
+  });
+
+  describe('stateContainer transitions', () => {
+    test('set', () => {
+      const newQuery = { query: '', language: '' };
+      expect(transitions.set(dashboardAppStateStub)('query', newQuery)).toEqual({
+        ...dashboardAppStateStub,
+        query: newQuery,
+      });
+    });
+
+    test('setOption', () => {
+      const newOptions = {
+        hidePanelTitles: true,
+      };
+      expect(
+        transitions.setOption(dashboardAppStateStub)('hidePanelTitles', newOptions.hidePanelTitles)
+      ).toEqual({
+        ...dashboardAppStateStub,
+        options: {
+          ...dashboardAppStateStub.options,
+          ...newOptions,
+        },
+      });
+    });
+
+    test('setDashboard', () => {
+      const newDashboard = {
+        fullScreenMode: true,
+        title: 'new title',
+        description: 'New Dashboard Test Description',
+        timeRestore: true,
+        query: { query: '', language: 'kuery' },
+        viewMode: ViewMode.VIEW,
+      };
+      expect(transitions.setDashboard(dashboardAppStateStub)(newDashboard)).toEqual({
+        ...dashboardAppStateStub,
+        ...newDashboard,
+      });
+    });
+  });
+});
+
+describe('updateStateUrl', () => {
+  const dashboardAppState = {
+    ...dashboardAppStateStub,
+    viewMode: ViewMode.VIEW,
+  };
+  updateStateUrl({ osdUrlStateStorage, state: dashboardAppState, replace: true });
+
+  test('update URL to not contain panels', () => {
+    const { panels, ...statesWithoutPanels } = dashboardAppState;
+    expect(osdUrlStateStorage.set).toHaveBeenCalledWith('_a', statesWithoutPanels, {
+      replace: true,
+    });
+    expect(osdUrlStateStorage.flush).toHaveBeenCalledWith({ replace: true });
+  });
+});