test(multiple): clean up some unnecessary imports (#31605)

Cleaning up some `imports` from `configureTestingModule` that aren't necessary now that we're fully standalone. This is an initial test to see if anything goes wrong. I'll roll it out to the other tests in a follow-up.

Author: crisbeto

src/cdk-experimental/accordion/accordion.spec.ts

@@ -1,7 +1,6 @@
 import {Component, DebugElement, signal, model} from '@angular/core';
 import {ComponentFixture, TestBed} from '@angular/core/testing';
 import {By} from '@angular/platform-browser';
-import {BidiModule} from '@angular/cdk/bidi';
 import {provideFakeDirectionality, runAccessibilityChecks} from '@angular/cdk/testing/private';
 import {_IdGenerator} from '@angular/cdk/a11y';
 import {
@@ -97,7 +96,6 @@ describe('CdkAccordionGroup', () => {
   beforeEach(() => {
     TestBed.configureTestingModule({
       providers: [provideFakeDirectionality('ltr'), _IdGenerator],
-      imports: [BidiModule, AccordionGroupExample],
     });
 
     fixture = TestBed.createComponent(AccordionGroupExample);

src/cdk-experimental/combobox/combobox.spec.ts

@@ -23,12 +23,6 @@ describe('Combobox', () => {
     let applyButton: DebugElement;
     let applyButtonElement: HTMLElement;
 
-    beforeEach(waitForAsync(() => {
-      TestBed.configureTestingModule({
-        imports: [CdkComboboxModule, ComboboxToggle],
-      });
-    }));
-
     beforeEach(() => {
       fixture = TestBed.createComponent(ComboboxToggle);
       fixture.detectChanges();
@@ -189,11 +183,7 @@ describe('Combobox', () => {
     let combobox: DebugElement;
     let comboboxInstance: CdkCombobox;
 
-    beforeEach(waitForAsync(() => {
-      TestBed.configureTestingModule({
-        imports: [CdkComboboxModule, ComboboxToggle],
-      });
-    }));
+    beforeEach(waitForAsync(() => {}));
 
     beforeEach(() => {
       fixture = TestBed.createComponent(ComboboxToggle);
@@ -259,11 +249,7 @@ describe('Combobox', () => {
     let comboboxInstance: CdkCombobox;
     let comboboxElement: HTMLElement;
 
-    beforeEach(waitForAsync(() => {
-      TestBed.configureTestingModule({
-        imports: [CdkComboboxModule, ComboboxToggle],
-      });
-    }));
+    beforeEach(waitForAsync(() => {}));
 
     beforeEach(() => {
       fixture = TestBed.createComponent(ComboboxToggle);

src/cdk-experimental/deferred-content/deferred-content.spec.ts

@@ -1,18 +1,12 @@
 import {Component, DebugElement, Directive, effect, inject, signal} from '@angular/core';
-import {ComponentFixture, TestBed, waitForAsync} from '@angular/core/testing';
+import {ComponentFixture, TestBed} from '@angular/core/testing';
 import {DeferredContent, DeferredContentAware} from './deferred-content';
 import {By} from '@angular/platform-browser';
 
 describe('DeferredContent', () => {
   let fixture: ComponentFixture<TestComponent>;
   let collapsible: DebugElement;
 
-  beforeEach(waitForAsync(() => {
-    TestBed.configureTestingModule({
-      imports: [TestComponent],
-    });
-  }));
-
   beforeEach(() => {
     fixture = TestBed.createComponent(TestComponent);
     collapsible = fixture.debugElement.query(By.directive(Collapsible));

src/cdk-experimental/listbox/listbox.spec.ts

@@ -2,7 +2,7 @@ import {Component, DebugElement, signal} from '@angular/core';
 import {CdkListbox, CdkOption} from './listbox';
 import {ComponentFixture, TestBed, fakeAsync, tick} from '@angular/core/testing';
 import {By} from '@angular/platform-browser';
-import {BidiModule, Direction} from '@angular/cdk/bidi';
+import {Direction} from '@angular/cdk/bidi';
 import {provideFakeDirectionality, runAccessibilityChecks} from '@angular/cdk/testing/private';
 
 interface ModifierKeys {
@@ -65,7 +65,6 @@ describe('CdkListbox', () => {
   }) {
     TestBed.configureTestingModule({
       providers: [provideFakeDirectionality(opts?.textDirection ?? 'ltr')],
-      imports: [BidiModule, ListboxExample],
     });
 
     fixture = TestBed.createComponent(ListboxExample);
@@ -98,7 +97,6 @@ describe('CdkListbox', () => {
   function setupDefaultListbox() {
     TestBed.configureTestingModule({
       providers: [provideFakeDirectionality('ltr')],
-      imports: [BidiModule, DefaultListboxExample],
     });
 
     const defaultFixture = TestBed.createComponent(DefaultListboxExample);

src/cdk-experimental/radio-group/radio-group.spec.ts

@@ -2,7 +2,7 @@ import {Component, DebugElement, signal} from '@angular/core';
 import {CdkRadioButton, CdkRadioGroup} from './radio-group';
 import {ComponentFixture, TestBed} from '@angular/core/testing';
 import {By} from '@angular/platform-browser';
-import {BidiModule, Direction} from '@angular/cdk/bidi';
+import {Direction} from '@angular/cdk/bidi';
 import {provideFakeDirectionality, runAccessibilityChecks} from '@angular/cdk/testing/private';
 
 describe('CdkRadioGroup', () => {
@@ -45,7 +45,6 @@ describe('CdkRadioGroup', () => {
   }) {
     TestBed.configureTestingModule({
       providers: [provideFakeDirectionality(opts?.textDirection ?? 'ltr')],
-      imports: [BidiModule, RadioGroupExample],
     });
 
     fixture = TestBed.createComponent(RadioGroupExample);
@@ -85,7 +84,6 @@ describe('CdkRadioGroup', () => {
   function setupDefaultRadioGroup() {
     TestBed.configureTestingModule({
       providers: [provideFakeDirectionality('ltr')],
-      imports: [BidiModule, DefaultRadioGroupExample],
     });
 
     const fixture = TestBed.createComponent(DefaultRadioGroupExample);

src/cdk-experimental/scrolling/virtual-scroll-viewport.spec.ts

@@ -1,6 +1,6 @@
 import {CdkVirtualScrollViewport, ScrollingModule} from '@angular/cdk/scrolling';
 import {Component, Input, ViewChild, ViewEncapsulation} from '@angular/core';
-import {ComponentFixture, TestBed, fakeAsync, flush, waitForAsync} from '@angular/core/testing';
+import {ComponentFixture, TestBed, fakeAsync, flush} from '@angular/core/testing';
 import {ScrollingModule as ExperimentalScrollingModule} from './scrolling-module';
 
 describe('CdkVirtualScrollViewport', () => {
@@ -9,12 +9,6 @@ describe('CdkVirtualScrollViewport', () => {
     let testComponent: AutoSizeVirtualScroll;
     let viewport: CdkVirtualScrollViewport;
 
-    beforeEach(waitForAsync(() => {
-      TestBed.configureTestingModule({
-        imports: [ScrollingModule, ExperimentalScrollingModule, AutoSizeVirtualScroll],
-      });
-    }));
-
     beforeEach(() => {
       fixture = TestBed.createComponent(AutoSizeVirtualScroll);
       testComponent = fixture.componentInstance;

src/cdk-experimental/selection/selection.spec.ts

@@ -1,7 +1,7 @@
 import {AsyncPipe} from '@angular/common';
 import {CdkTableModule} from '@angular/cdk/table';
 import {ChangeDetectorRef, Component, ElementRef, ViewChild, inject} from '@angular/core';
-import {waitForAsync, ComponentFixture, fakeAsync, flush, TestBed} from '@angular/core/testing';
+import {ComponentFixture, fakeAsync, flush, TestBed} from '@angular/core/testing';
 
 import {CdkSelection} from './selection';
 import {CdkSelectionModule} from './selection-module';
@@ -11,12 +11,6 @@ describe('CdkSelection', () => {
   let fixture: ComponentFixture<ListWithMultiSelection>;
   let component: ListWithMultiSelection;
 
-  beforeEach(waitForAsync(() => {
-    TestBed.configureTestingModule({
-      imports: [CdkSelectionModule, ListWithMultiSelection],
-    });
-  }));
-
   beforeEach(() => {
     fixture = TestBed.createComponent(ListWithMultiSelection);
     component = fixture.componentInstance;
@@ -237,12 +231,6 @@ describe('CdkSelection with multiple = false', () => {
   let fixture: ComponentFixture<ListWithSingleSelection>;
   let component: ListWithSingleSelection;
 
-  beforeEach(waitForAsync(() => {
-    TestBed.configureTestingModule({
-      imports: [CdkSelectionModule, ListWithSingleSelection],
-    });
-  }));
-
   beforeEach(() => {
     fixture = TestBed.createComponent(ListWithSingleSelection);
     component = fixture.componentInstance;
@@ -302,12 +290,6 @@ describe('cdkSelectionColumn', () => {
   let fixture: ComponentFixture<MultiSelectTableWithSelectionColumn>;
   let component: MultiSelectTableWithSelectionColumn;
 
-  beforeEach(waitForAsync(() => {
-    TestBed.configureTestingModule({
-      imports: [CdkSelectionModule, CdkTableModule, MultiSelectTableWithSelectionColumn],
-    });
-  }));
-
   beforeEach(fakeAsync(() => {
     fixture = TestBed.createComponent(MultiSelectTableWithSelectionColumn);
     component = fixture.componentInstance;
@@ -397,12 +379,6 @@ describe('cdkSelectionColumn with multiple = false', () => {
   let fixture: ComponentFixture<SingleSelectTableWithSelectionColumn>;
   let component: SingleSelectTableWithSelectionColumn;
 
-  beforeEach(waitForAsync(() => {
-    TestBed.configureTestingModule({
-      imports: [CdkSelectionModule, CdkTableModule, SingleSelectTableWithSelectionColumn],
-    });
-  }));
-
   beforeEach(() => {
     fixture = TestBed.createComponent(SingleSelectTableWithSelectionColumn);
     component = fixture.componentInstance;

src/cdk-experimental/table-scroll-container/table-scroll-container.spec.ts

@@ -18,19 +18,12 @@ describe('CdkTableScrollContainer', () => {
   let headerRows: HTMLElement[];
   let footerRows: HTMLElement[];
 
-  function createComponent<T>(
-    componentType: Type<T>,
-    declarations: any[] = [],
-  ): ComponentFixture<T> {
-    TestBed.configureTestingModule({
-      imports: [CdkTableModule, CdkTableScrollContainerModule, componentType, ...declarations],
-    });
-
+  function createComponent<T>(componentType: Type<T>): ComponentFixture<T> {
     return TestBed.createComponent<T>(componentType);
   }
 
-  function setupTableTestApp(componentType: Type<any>, declarations: any[] = []) {
-    fixture = createComponent(componentType, declarations);
+  function setupTableTestApp(componentType: Type<any>) {
+    fixture = createComponent(componentType);
     component = fixture.componentInstance;
     fixture.detectChanges();
 

src/cdk-experimental/tabs/tabs.spec.ts

@@ -1,7 +1,7 @@
 import {Component, DebugElement, signal} from '@angular/core';
 import {ComponentFixture, TestBed} from '@angular/core/testing';
 import {By} from '@angular/platform-browser';
-import {BidiModule, Direction} from '@angular/cdk/bidi';
+import {Direction} from '@angular/cdk/bidi';
 import {provideFakeDirectionality, runAccessibilityChecks} from '@angular/cdk/testing/private';
 import {CdkTabs, CdkTabList, CdkTab, CdkTabPanel, CdkTabContent} from './tabs';
 
@@ -63,7 +63,6 @@ describe('CdkTabs', () => {
   function setupTestTabs(options: {textDirection?: Direction} = {}) {
     TestBed.configureTestingModule({
       providers: [provideFakeDirectionality(options.textDirection ?? 'ltr')],
-      imports: [BidiModule, TestTabsComponent],
     });
 
     fixture = TestBed.createComponent(TestTabsComponent);

src/cdk-experimental/tree/tree.spec.ts

@@ -1,7 +1,7 @@
 import {Component, signal} from '@angular/core';
 import {ComponentFixture, TestBed} from '@angular/core/testing';
 import {By} from '@angular/platform-browser';
-import {BidiModule, Direction} from '@angular/cdk/bidi';
+import {Direction} from '@angular/cdk/bidi';
 import {provideFakeDirectionality, runAccessibilityChecks} from '@angular/cdk/testing/private';
 import {CdkTree, CdkTreeItem, CdkTreeItemGroup, CdkTreeItemGroupContent} from './tree';
 
@@ -53,7 +53,6 @@ describe('CdkTree', () => {
 
   function setupTestTree(textDirection: Direction = 'ltr') {
     TestBed.configureTestingModule({
-      imports: [TestTreeComponent, BidiModule],
       providers: [provideFakeDirectionality(textDirection)],
     });