feat(ng-mocks): ngMocks.throwOnConsole

README.md

@@ -2516,6 +2516,7 @@ describe('MockInstance', () => {
 - [`.faster()`](#ngmocksfaster)
 - [`.flushTestBed()`](#ngmocksflushtestbed)
 - [`.reset()`](#ngmocksreset)
+- [`.throwOnConsole()`](#ngmocksthrowonconsole)
 
 #### ngMocks.guts
 
@@ -2859,6 +2860,13 @@ ngMocks.stub(instance, {
 
 [to the top](#table-of-contents)
 
+#### ngMocks.throwOnConsole
+
+`ngMocks.throwOnConsole()` stubs `console.warn` and `console.error` to throw an error instead of printing into console.
+It is useful in `Ivy` enabled mode, because then some errors are printed instead of being thrown.
+
+[to the top](#table-of-contents)
+
 ### Helper functions
 
 `ng-mocks` provides several functions which help with **detection of mock objects**.

lib/mock-builder/mock-builder.promise.spec.ts

@@ -9,6 +9,7 @@ import {
   Pipe,
   PipeTransform,
 } from '@angular/core';
+import { ngMocks } from 'ng-mocks';
 
 import { getTestBedInjection } from '../common/core.helpers';
 
@@ -47,22 +48,7 @@ class TargetDirective {}
 class TargetModule {}
 
 describe('MockBuilderPromise', () => {
-  // Thanks Ivy, it doesn't throw an error and we have to use injector.
-  let backupWarn: typeof console.warn;
-  let backupError: typeof console.error;
-
-  beforeAll(() => {
-    backupWarn = console.warn;
-    backupError = console.error;
-    console.error = console.warn = (...args: any[]) => {
-      throw new Error(args.join(' '));
-    };
-  });
-
-  afterAll(() => {
-    console.error = backupError;
-    console.warn = backupWarn;
-  });
+  ngMocks.throwOnConsole();
 
   it('skips dependencies in kept providers', async () => {
     await MockBuilder().keep(TargetService, { dependency: true });

lib/mock-helper/mock-helper.throw-on-console.ts

@@ -0,0 +1,20 @@
+// tslint:disable no-console
+
+// Thanks Ivy, it doesn't throw an error and we have to use injector.
+export default (): void => {
+  let backupWarn: typeof console.warn;
+  let backupError: typeof console.error;
+
+  beforeAll(() => {
+    backupWarn = console.warn;
+    backupError = console.error;
+    console.error = console.warn = (...args: any[]) => {
+      throw new Error(args.join(' '));
+    };
+  });
+
+  afterAll(() => {
+    console.error = backupError;
+    console.warn = backupWarn;
+  });
+};

lib/mock-helper/mock-helper.ts

@@ -26,6 +26,7 @@ import mockHelperInput from './mock-helper.input';
 import mockHelperOutput from './mock-helper.output';
 import mockHelperReset from './mock-helper.reset';
 import mockHelperStub from './mock-helper.stub';
+import mockHelperThrowOnConsole from './mock-helper.throw-on-console';
 
 /**
  * @see https://github.com/ike18t/ng-mocks#ngmocks
@@ -266,6 +267,13 @@ export const ngMocks: {
    * @see https://github.com/ike18t/ng-mocks#ngmocksstub
    */
   stub<I extends object>(instance: I, overrides: Partial<I>): I;
+
+  /**
+   * Thanks Ivy, it doesn't throw an error and we have to use injector.
+   *
+   * @see https://github.com/ike18t/ng-mocks#ngmocksthrowonconsole
+   */
+  throwOnConsole(): void;
 } = {
   autoSpy: mockHelperAutoSpy,
   defaultExclude: mockHelperDefaultExclude,
@@ -285,4 +293,5 @@ export const ngMocks: {
   output: mockHelperOutput,
   reset: mockHelperReset,
   stub: mockHelperStub,
+  throwOnConsole: mockHelperThrowOnConsole,
 };

tests/correct-module-exports-11/test.spec.ts

@@ -28,22 +28,7 @@ class ExternalComponent {}
 class TargetModule {}
 
 describe('correct-module-exports-11:proper', () => {
-  // Thanks Ivy, it doesn't throw an error.
-  let backupWarn: typeof console.warn;
-  let backupError: typeof console.error;
-
-  beforeAll(() => {
-    backupWarn = console.warn;
-    backupError = console.error;
-    console.error = console.warn = (...args: any[]) => {
-      throw new Error(args.join(' '));
-    };
-  });
-
-  afterAll(() => {
-    console.error = backupError;
-    console.warn = backupWarn;
-  });
+  ngMocks.throwOnConsole();
 
   beforeEach(() =>
     TestBed.configureTestingModule({

tests/export-all/test.spec.ts

@@ -9,7 +9,7 @@ import {
   PipeTransform,
 } from '@angular/core';
 import { TestBed } from '@angular/core/testing';
-import { MockBuilder, MockRender } from 'ng-mocks';
+import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';
 
 @Pipe({
   name: 'target',
@@ -38,22 +38,7 @@ class TargetComponent {
 class TargetModule {}
 
 describe('export-all', () => {
-  // Thanks Ivy, it doesn't throw an error and we have to use injector.
-  let backupWarn: typeof console.warn;
-  let backupError: typeof console.error;
-
-  beforeAll(() => {
-    backupWarn = console.warn;
-    backupError = console.error;
-    console.error = console.warn = (...args: any[]) => {
-      throw new Error(args.join(' '));
-    };
-  });
-
-  afterAll(() => {
-    console.error = backupError;
-    console.warn = backupWarn;
-  });
+  ngMocks.throwOnConsole();
 
   // The goal is to get access to declarations of the mock TargetModule
   // when TargetComponent is used externally.

tests/internal-only-nested/test.spec.ts

@@ -1,26 +1,11 @@
 // tslint:disable no-console
 
-import { MockBuilder, MockRender } from 'ng-mocks';
+import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';
 
 import { InternalComponent, TargetModule } from './fixtures';
 
 describe('InternalOnlyNested:real', () => {
-  // Thanks Ivy, it doesn't throw an error and we have to use injector.
-  let backupWarn: typeof console.warn;
-  let backupError: typeof console.error;
-
-  beforeAll(() => {
-    backupWarn = console.warn;
-    backupError = console.error;
-    console.error = console.warn = (...args: any[]) => {
-      throw new Error(args.join(' '));
-    };
-  });
-
-  afterAll(() => {
-    console.error = backupError;
-    console.warn = backupWarn;
-  });
+  ngMocks.throwOnConsole();
 
   beforeEach(() => MockBuilder(TargetModule));
 

tests/internal-only/test.spec.ts

@@ -1,26 +1,11 @@
 // tslint:disable no-console
 
-import { MockBuilder, MockRender } from 'ng-mocks';
+import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';
 
 import { InternalComponent, TargetModule } from './fixtures';
 
 describe('InternalOnly:real', () => {
-  // Thanks Ivy, it doesn't throw an error and we have to use injector.
-  let backupWarn: typeof console.warn;
-  let backupError: typeof console.error;
-
-  beforeAll(() => {
-    backupWarn = console.warn;
-    backupError = console.error;
-    console.error = console.warn = (...args: any[]) => {
-      throw new Error(args.join(' '));
-    };
-  });
-
-  afterAll(() => {
-    console.error = backupError;
-    console.warn = backupWarn;
-  });
+  ngMocks.throwOnConsole();
 
   beforeEach(() => MockBuilder(TargetModule));
 

tests/internal-vs-external/test.spec.ts

@@ -1,6 +1,6 @@
 // tslint:disable no-console
 
-import { MockBuilder, MockRender } from 'ng-mocks';
+import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';
 
 import {
   ExternalComponent,
@@ -9,22 +9,7 @@ import {
 } from './fixtures';
 
 describe('InternalVsExternal:real', () => {
-  // Thanks Ivy, it doesn't throw an error and we have to use injector.
-  let backupWarn: typeof console.warn;
-  let backupError: typeof console.error;
-
-  beforeAll(() => {
-    backupWarn = console.warn;
-    backupError = console.error;
-    console.error = console.warn = (...args: any[]) => {
-      throw new Error(args.join(' '));
-    };
-  });
-
-  afterAll(() => {
-    console.error = backupError;
-    console.warn = backupWarn;
-  });
+  ngMocks.throwOnConsole();
 
   beforeEach(() => MockBuilder(TargetModule));
 
@@ -43,22 +28,7 @@ describe('InternalVsExternal:real', () => {
 });
 
 describe('InternalVsExternal:mock', () => {
-  // Thanks Ivy, it doesn't throw an error and we have to use injector.
-  let backupWarn: typeof console.warn;
-  let backupError: typeof console.error;
-
-  beforeAll(() => {
-    backupWarn = console.warn;
-    backupError = console.error;
-    console.error = console.warn = (...args: any[]) => {
-      throw new Error(args.join(' '));
-    };
-  });
-
-  afterAll(() => {
-    console.error = backupError;
-    console.warn = backupWarn;
-  });
+  ngMocks.throwOnConsole();
 
   beforeEach(() => MockBuilder().mock(TargetModule));
 

tests/issue-175/test.spec.ts

@@ -1,8 +1,6 @@
-// tslint:disable no-console
-
 import { NgModule } from '@angular/core';
 import { TestBed } from '@angular/core/testing';
-import { MockBuilder, MockRender } from 'ng-mocks';
+import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';
 
 import {
   Target1Component,
@@ -17,22 +15,7 @@ import {
 } from './fixtures';
 
 describe('issue-175', () => {
-  // Thanks Ivy, it doesn't throw an error and we have to use injector.
-  let backupWarn: typeof console.warn;
-  let backupError: typeof console.error;
-
-  beforeAll(() => {
-    backupWarn = console.warn;
-    backupError = console.error;
-    console.error = console.warn = (...args: any[]) => {
-      throw new Error(args.join(' '));
-    };
-  });
-
-  afterAll(() => {
-    console.error = backupError;
-    console.warn = backupWarn;
-  });
+  ngMocks.throwOnConsole();
 
   describe('module', () => {
     beforeEach(() =>

tests/ng-mocks-default-exclude/test.override.spec.ts

@@ -25,6 +25,8 @@ class Target2Component {
 class TargetModule {}
 
 describe('ng-mocks-default-exclude:override', () => {
+  ngMocks.throwOnConsole();
+
   afterAll(() => {
     ngMocks.defaultWipe(Target1Component);
     ngMocks.defaultWipe(Target2Component);

tests/ng-mocks-default-exclude/test.spec.ts

@@ -33,6 +33,8 @@ class TargetModule {}
 ngMocks.defaultExclude(TargetComponent);
 
 describe('ng-mocks-default-exclude', () => {
+  ngMocks.throwOnConsole();
+
   describe('MockComponent', () => {
     beforeEach(() =>
       TestBed.configureTestingModule({

tests/ng-mocks-default-keep-modules/test.spec.ts

@@ -14,6 +14,8 @@ ngMocks.defaultKeep(Target2Module);
 ngMocks.defaultReplace(Target1Component, Fake1Component);
 
 describe('ng-mocks-default-keep-modules', () => {
+  ngMocks.throwOnConsole();
+
   beforeEach(() => {
     return TestBed.configureTestingModule({
       imports: [MockModule(Target3Module)],

tests/ng-mocks-default-keep/test.spec.ts

@@ -33,6 +33,8 @@ class TargetModule {}
 ngMocks.defaultKeep(TargetComponent);
 
 describe('ng-mocks-default-keep', () => {
+  ngMocks.throwOnConsole();
+
   describe('MockComponent', () => {
     beforeEach(() =>
       TestBed.configureTestingModule({

tests/ng-mocks-default-replace/test.component.spec.ts

@@ -33,6 +33,8 @@ class TargetModule {}
 ngMocks.defaultReplace(TargetComponent, FakeComponent);
 
 describe('ng-mocks-default-replace:component', () => {
+  ngMocks.throwOnConsole();
+
   describe('MockComponent', () => {
     beforeEach(() =>
       TestBed.configureTestingModule({

tests/ng-mocks-default-replace/test.directive.spec.ts

@@ -33,6 +33,8 @@ class TargetModule {}
 ngMocks.defaultReplace(TargetDirective, FakeDirective);
 
 describe('ng-mocks-default-replace:directive', () => {
+  ngMocks.throwOnConsole();
+
   describe('MockDirective', () => {
     beforeEach(() =>
       TestBed.configureTestingModule({
@@ -42,7 +44,7 @@ describe('ng-mocks-default-replace:directive', () => {
 
     it('works as usual', () => {
       const fixture = MockRender('<target></target>');
-      expect(fixture.nativeElement.innerHTML).toEqual(
+      expect(fixture.nativeElement.innerHTML).toContain(
         '<target></target>',
       );
     });
@@ -99,7 +101,7 @@ describe('ng-mocks-default-replace:directive', () => {
 
     it('switches to mock', () => {
       const fixture = MockRender('<target></target>');
-      expect(fixture.nativeElement.innerHTML).toEqual(
+      expect(fixture.nativeElement.innerHTML).toContain(
         '<target></target>',
       );
     });
@@ -148,7 +150,7 @@ describe('ng-mocks-default-replace:directive', () => {
 
     it('switches to mock', () => {
       const fixture = MockRender('<target></target>');
-      expect(fixture.nativeElement.innerHTML).toEqual(
+      expect(fixture.nativeElement.innerHTML).toContain(
         '<target></target>',
       );
     });

tests/ng-mocks-default-replace/test.pipe.spec.ts

@@ -35,6 +35,8 @@ class TargetModule {}
 ngMocks.defaultReplace(TargetPipe, FakePipe);
 
 describe('ng-mocks-default-replace:pipe', () => {
+  ngMocks.throwOnConsole();
+
   describe('MockPipe', () => {
     beforeEach(() =>
       TestBed.configureTestingModule({