fix(a14): root providers for ApplicationModule #1932

Author: satanTime

libs/ng-mocks/src/lib/common/core.config.ts

@@ -11,11 +11,24 @@ export default {
     // https://github.com/ike18t/ng-mocks/issues/538
     'Sanitizer',
     'DomSanitizer',
+
+    // ApplicationModule, A14 made them global at root level
+    'ApplicationInitStatus',
+    'ApplicationRef',
+    'Compiler',
+    'IterableDiffers',
+    'KeyValueDiffers',
   ],
   neverMockToken: [
     'InjectionToken Set Injector scope.', // INJECTOR_SCOPE // ivy only
     'InjectionToken EventManagerPlugins', // EVENT_MANAGER_PLUGINS
     'InjectionToken HammerGestureConfig', // HAMMER_GESTURE_CONFIG
+
+    // ApplicationModule, A14 made them global at root level
+    'InjectionToken AppId', // APP_ID
+    'InjectionToken DefaultCurrencyCode', // DEFAULT_CURRENCY_CODE
+    'InjectionToken LocaleId', // LOCALE_ID
+    'InjectionToken SCHEDULER_TOKEN', // SCHEDULER
   ],
   onMockInstanceRestoreNeed: 'warn',
   onTestBedFlushNeed: 'warn',

tests/providedin-root/test.spec.ts

@@ -0,0 +1,105 @@
+import {
+  Component,
+  Inject,
+  Injectable,
+  InjectionToken,
+  LOCALE_ID,
+  VERSION,
+} from '@angular/core';
+import { TestBed } from '@angular/core/testing';
+import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';
+
+const TOKEN = new (InjectionToken as any)('TOKEN', {
+  factory: () => 'ROOT_TOKEN',
+  providedIn: 'root',
+});
+
+@((Injectable as any)({
+  providedIn: 'root',
+}))
+class Service {
+  public readonly value: string = 'ROOT_SERVICE';
+}
+
+@Component({
+  selector: 'target',
+  template: ':{{ service.value }}:{{ token }}:{{localeId}}:',
+})
+class TargetComponent {
+  public constructor(
+    public service: Service,
+    @Inject(TOKEN) public token: string,
+    @Inject(LOCALE_ID) public localeId: string,
+  ) {}
+}
+
+// tokens provided on the root level, shouldn't be mocked unless it's explicitly specified.
+// @see https://github.com/ike18t/ng-mocks/issues/1932
+describe('providedIn:root', () => {
+  if (parseInt(VERSION.major, 10) <= 5) {
+    it('a5', () => {
+      // pending('Need Angular > 5');
+      expect(true).toBeTruthy();
+    });
+
+    return;
+  }
+
+  describe('native', () => {
+    beforeEach(() =>
+      TestBed.configureTestingModule({
+        declarations: [TargetComponent],
+      }),
+    );
+
+    it('finds token the root token', () => {
+      const fixture = MockRender(TargetComponent);
+      expect(ngMocks.formatHtml(fixture)).toEqual(
+        '<target>:ROOT_SERVICE:ROOT_TOKEN:en-US:</target>',
+      );
+    });
+  });
+
+  describe('MockBuilder:default', () => {
+    beforeEach(() => MockBuilder(TargetComponent));
+
+    it('mocks all root provides apart from ApplicationModule:LOCALE_ID', () => {
+      const fixture = MockRender(TargetComponent);
+      expect(ngMocks.formatHtml(fixture)).toEqual(
+        '<target>:::en-US:</target>',
+      );
+    });
+  });
+
+  describe('MockBuilder:keep', () => {
+    beforeEach(() =>
+      MockBuilder(TargetComponent)
+        .keep(Service)
+        .keep(TOKEN)
+        .keep(LOCALE_ID),
+    );
+
+    it('keeps all original values', () => {
+      const fixture = MockRender(TargetComponent);
+      expect(ngMocks.formatHtml(fixture)).toEqual(
+        '<target>:ROOT_SERVICE:ROOT_TOKEN:en-US:</target>',
+      );
+    });
+  });
+
+  describe('MockBuilder:mock', () => {
+    beforeEach(() =>
+      MockBuilder(TargetComponent)
+        .mock(Service, { value: 'MOCK_SERVICE' })
+        .mock(TOKEN, 'MOCK_TOKEN')
+        .mock(LOCALE_ID, 'MOCK_LOCALE_ID'),
+    );
+
+    it('mocks all values', () => {
+      const fixture = MockRender(TargetComponent);
+      expect(ngMocks.formatHtml(fixture)).toEqual(
+        '<target>:MOCK_SERVICE:MOCK_TOKEN:MOCK_LOCALE_ID:</target>',
+      );
+    });
+  });
+});