test(material/slide-toggle): clean up unnecessary imports in tests

Removes imports from tests that aren't necessary anymore, because we're using standalone.

Author: crisbeto

src/material/slide-toggle/slide-toggle.spec.ts

@@ -16,22 +16,6 @@ import {MatSlideToggle, MatSlideToggleChange, MatSlideToggleModule} from './inde
 import {MAT_SLIDE_TOGGLE_DEFAULT_OPTIONS} from './slide-toggle-config';
 
 describe('MatSlideToggle without forms', () => {
-  beforeEach(() => {
-    TestBed.configureTestingModule({
-      imports: [
-        MatSlideToggleModule,
-        BidiModule,
-        SlideToggleBasic,
-        SlideToggleCheckedAndDisabledAttr,
-        SlideToggleWithTabindexAttr,
-        SlideToggleWithoutLabel,
-        SlideToggleProjectedLabel,
-        TextBindingComponent,
-        SlideToggleWithStaticAriaAttributes,
-      ],
-    });
-  });
-
   describe('basic behavior', () => {
     let fixture: ComponentFixture<any>;
 
@@ -539,20 +523,6 @@ describe('MatSlideToggle without forms', () => {
 });
 
 describe('MatSlideToggle with forms', () => {
-  beforeEach(() => {
-    TestBed.configureTestingModule({
-      imports: [
-        MatSlideToggleModule,
-        FormsModule,
-        ReactiveFormsModule,
-        SlideToggleWithForm,
-        SlideToggleWithModel,
-        SlideToggleWithFormControl,
-        SlideToggleWithModelAndChangeEvent,
-      ],
-    });
-  });
-
   describe('using ngModel', () => {
     let fixture: ComponentFixture<SlideToggleWithModel>;
 
@@ -958,14 +928,6 @@ class SlideToggleWithTabindexAttr {
   disabled = false;
 }
 
-@Component({
-  template: `<mat-slide-toggle>{{label}}</mat-slide-toggle>`,
-  imports: [MatSlideToggleModule, BidiModule],
-})
-class SlideToggleWithoutLabel {
-  label: string;
-}
-
 @Component({
   template: `<mat-slide-toggle [(ngModel)]="checked" (change)="onChange()"></mat-slide-toggle>`,
   imports: [MatSlideToggleModule, FormsModule, ReactiveFormsModule],
@@ -975,21 +937,6 @@ class SlideToggleWithModelAndChangeEvent {
   onChange: () => void = () => {};
 }
 
-@Component({
-  template: `<mat-slide-toggle><some-text></some-text></mat-slide-toggle>`,
-  imports: [MatSlideToggleModule, BidiModule],
-})
-class SlideToggleProjectedLabel {}
-
-@Component({
-  selector: 'some-text',
-  template: `<span>{{text}}</span>`,
-  imports: [MatSlideToggleModule, BidiModule],
-})
-class TextBindingComponent {
-  text: string = 'Some text';
-}
-
 @Component({
   template: `
     <mat-slide-toggle aria-label="Slide toggle" aria-labelledby="something"></mat-slide-toggle>

src/material/slide-toggle/testing/slide-toggle-harness.spec.ts

@@ -11,10 +11,6 @@ describe('MatSlideToggleHarness', () => {
   let loader: HarnessLoader;
 
   beforeEach(() => {
-    TestBed.configureTestingModule({
-      imports: [MatSlideToggleModule, ReactiveFormsModule, SlideToggleHarnessTest],
-    });
-
     fixture = TestBed.createComponent(SlideToggleHarnessTest);
     fixture.detectChanges();
     loader = TestbedHarnessEnvironment.loader(fixture);