/
combobox.spec.ts
443 lines (327 loc) · 13.2 KB
/
combobox.spec.ts
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import {
Component,
DebugElement,
Directive, ElementRef,
Inject,
InjectionToken,
Input,
OnInit,
Optional,
ViewChild
} from '@angular/core';
import {ComponentFixture, TestBed, async} from '@angular/core/testing';
import {By} from '@angular/platform-browser';
import {CdkComboboxModule} from './combobox-module';
import {CdkCombobox} from './combobox';
import {dispatchKeyboardEvent, dispatchMouseEvent} from '@angular/cdk/testing/private';
import {
AriaHasPopupValue,
CdkComboboxPanel} from '@angular/cdk-experimental/combobox/combobox-panel';
import {DOWN_ARROW, ESCAPE} from '@angular/cdk/keycodes';
describe('Combobox', () => {
describe('with a basic toggle trigger', () => {
let fixture: ComponentFixture<ComboboxToggle>;
let testComponent: ComboboxToggle;
let combobox: DebugElement;
let comboboxInstance: CdkCombobox<unknown>;
let comboboxElement: HTMLElement;
let dialog: DebugElement;
let dialogInstance: FakeDialogContent<unknown>;
let dialogElement: HTMLElement;
let applyButton: DebugElement;
let applyButtonElement: HTMLElement;
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [CdkComboboxModule],
declarations: [ComboboxToggle, FakeDialogContent],
}).compileComponents();
}));
beforeEach(() => {
fixture = TestBed.createComponent(ComboboxToggle);
fixture.detectChanges();
testComponent = fixture.debugElement.componentInstance;
combobox = fixture.debugElement.query(By.directive(CdkCombobox));
comboboxInstance = combobox.injector.get<CdkCombobox<unknown>>(CdkCombobox);
comboboxElement = combobox.nativeElement;
});
it('should have the combobox role', () => {
expect(comboboxElement.getAttribute('role')).toBe('combobox');
});
it('should update the aria disabled attribute', () => {
comboboxInstance.disabled = true;
fixture.detectChanges();
expect(comboboxElement.getAttribute('aria-disabled')).toBe('true');
comboboxInstance.disabled = false;
fixture.detectChanges();
expect(comboboxElement.getAttribute('aria-disabled')).toBe('false');
});
it('should have aria-owns and aria-haspopup attributes', () => {
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
dialog = fixture.debugElement.query(By.directive(FakeDialogContent));
dialogInstance = dialog.injector.get<FakeDialogContent<unknown>>(FakeDialogContent);
expect(comboboxElement.getAttribute('aria-owns')).toBe(dialogInstance.dialogId);
expect(comboboxElement.getAttribute('aria-haspopup')).toBe('dialog');
});
it('should update aria-expanded attribute upon toggle of panel', () => {
expect(comboboxElement.getAttribute('aria-expanded')).toBe('false');
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(comboboxElement.getAttribute('aria-expanded')).toBe('true');
comboboxInstance.close();
fixture.detectChanges();
expect(comboboxElement.getAttribute('aria-expanded')).toBe('false');
});
it('should toggle focus upon toggling the panel', () => {
comboboxElement.focus();
testComponent.actions = 'toggle';
fixture.detectChanges();
expect(document.activeElement).toEqual(comboboxElement);
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeTrue();
dialog = fixture.debugElement.query(By.directive(FakeDialogContent));
dialogElement = dialog.nativeElement;
expect(document.activeElement).toBe(dialogElement);
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(document.activeElement).not.toEqual(dialogElement);
});
it('should have a panel that is closed by default', () => {
expect(comboboxInstance.hasPanel()).toBeTrue();
expect(comboboxInstance.isOpen()).toBeFalse();
});
it('should have an open action of click by default', () => {
expect(comboboxInstance.isOpen()).toBeFalse();
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeTrue();
});
it('should not open panel when disabled', () => {
expect(comboboxInstance.isOpen()).toBeFalse();
comboboxInstance.disabled = true;
fixture.detectChanges();
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeFalse();
});
it('should update textContent on close of panel', () => {
expect(comboboxInstance.isOpen()).toBeFalse();
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeTrue();
testComponent.inputElement.nativeElement.value = 'testing input';
fixture.detectChanges();
applyButton = fixture.debugElement.query(By.css('#applyButton'));
applyButtonElement = applyButton.nativeElement;
dispatchMouseEvent(applyButtonElement, 'click');
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeFalse();
expect(comboboxElement.textContent).toEqual('testing input');
});
it('should close panel on outside click', () => {
expect(comboboxInstance.isOpen()).toBeFalse();
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeTrue();
const otherDiv = fixture.debugElement.query(By.css('#other-content'));
const otherDivElement = otherDiv.nativeElement;
dispatchMouseEvent(otherDivElement, 'click');
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeFalse();
});
it('should clean up the overlay on destroy', () => {
expect(document.querySelectorAll('.cdk-overlay-pane').length).toBe(0);
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(document.querySelectorAll('.cdk-overlay-pane').length).toBe(1);
fixture.destroy();
expect(document.querySelectorAll('.cdk-overlay-pane').length).toBe(0);
});
});
describe('with a coerce open action property function', () => {
let fixture: ComponentFixture<ComboboxToggle>;
let testComponent: ComboboxToggle;
let combobox: DebugElement;
let comboboxInstance: CdkCombobox<unknown>;
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [CdkComboboxModule],
declarations: [ComboboxToggle, FakeDialogContent],
}).compileComponents();
}));
beforeEach(() => {
fixture = TestBed.createComponent(ComboboxToggle);
fixture.detectChanges();
testComponent = fixture.debugElement.componentInstance;
combobox = fixture.debugElement.query(By.directive(CdkCombobox));
comboboxInstance = combobox.injector.get<CdkCombobox<unknown>>(CdkCombobox);
});
it('should coerce single string into open action', () => {
const openActions = comboboxInstance.openActions;
expect(openActions.length).toBe(1);
expect(openActions[0]).toBe('click');
});
it('should coerce actions separated by space', () => {
testComponent.actions = 'focus click';
fixture.detectChanges();
const openActions = comboboxInstance.openActions;
expect(openActions.length).toBe(2);
expect(openActions[0]).toBe('focus');
expect(openActions[1]).toBe('click');
});
it('should coerce actions separated by comma', () => {
testComponent.actions = 'focus,click,downKey';
fixture.detectChanges();
const openActions = comboboxInstance.openActions;
expect(openActions.length).toBe(3);
expect(openActions[0]).toBe('focus');
expect(openActions[1]).toBe('click');
expect(openActions[2]).toBe('downKey');
});
it('should coerce actions separated by commas and spaces', () => {
testComponent.actions = 'focus click,downKey';
fixture.detectChanges();
const openActions = comboboxInstance.openActions;
expect(openActions.length).toBe(3);
expect(openActions[0]).toBe('focus');
expect(openActions[1]).toBe('click');
expect(openActions[2]).toBe('downKey');
});
it('should throw error when given invalid open action', () => {
expect(() => {
testComponent.actions = 'invalidAction';
fixture.detectChanges();
}).toThrow();
});
});
describe('with various open actions', () => {
let fixture: ComponentFixture<ComboboxToggle>;
let testComponent: ComboboxToggle;
let combobox: DebugElement;
let comboboxInstance: CdkCombobox<unknown>;
let comboboxElement: HTMLElement;
beforeEach(async(() => {
TestBed.configureTestingModule({
imports: [CdkComboboxModule],
declarations: [ComboboxToggle, FakeDialogContent],
}).compileComponents();
}));
beforeEach(() => {
fixture = TestBed.createComponent(ComboboxToggle);
fixture.detectChanges();
testComponent = fixture.debugElement.componentInstance;
combobox = fixture.debugElement.query(By.directive(CdkCombobox));
comboboxInstance = combobox.injector.get<CdkCombobox<unknown>>(CdkCombobox);
comboboxElement = combobox.nativeElement;
});
it('should open panel with focus open action', () => {
testComponent.actions = 'focus';
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeFalse();
comboboxElement.focus();
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeTrue();
});
it('should open panel with click open action', () => {
testComponent.actions = 'click';
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeFalse();
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeTrue();
});
it('should open panel with downKey open action', () => {
testComponent.actions = 'downKey';
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeFalse();
dispatchKeyboardEvent(comboboxElement, 'keydown', DOWN_ARROW);
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeTrue();
});
it('should toggle panel with toggle open action', () => {
testComponent.actions = 'toggle';
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeFalse();
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeTrue();
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeFalse();
});
it('should close panel on escape key', () => {
testComponent.actions = 'click';
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeFalse();
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeTrue();
dispatchKeyboardEvent(comboboxElement, 'keydown', ESCAPE);
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeFalse();
});
it('should handle multiple open actions', () => {
testComponent.actions = 'click downKey';
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeFalse();
dispatchMouseEvent(comboboxElement, 'click');
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeTrue();
dispatchKeyboardEvent(comboboxElement, 'keydown', ESCAPE);
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeFalse();
dispatchKeyboardEvent(comboboxElement, 'keydown', DOWN_ARROW);
fixture.detectChanges();
expect(comboboxInstance.isOpen()).toBeTrue();
});
});
});
@Component({
template: `
<button cdkCombobox #toggleCombobox class="example-combobox"
[cdkComboboxTriggerFor]="panel"
[openActions]="actions">
No Value
</button>
<div id="other-content"></div>
<ng-template cdkComboboxPanel #panel="cdkComboboxPanel">
<div dialogContent #dialog="dialogContent" [parentPanel]="panel">
<input #input>
<button id="applyButton" (click)="panel.closePanel(input.value)">Apply</button>
</div>
</ng-template>`,
})
class ComboboxToggle {
@ViewChild('input') inputElement: ElementRef<HTMLInputElement>;
actions: string = 'click';
}
export const PANEL = new InjectionToken<CdkComboboxPanel>('CdkComboboxPanel');
let id = 0;
@Directive({
selector: '[dialogContent]',
exportAs: 'dialogContent',
host: {
'[attr.role]': 'role',
'[id]': 'dialogId',
'tabIndex': '-1'
}
})
export class FakeDialogContent<V> implements OnInit {
dialogId = `dialog-${id++}`;
role = 'dialog';
@Input('parentPanel') private readonly _explicitPanel: CdkComboboxPanel;
constructor(
@Optional() @Inject(PANEL) readonly _parentPanel?: CdkComboboxPanel<V>,
) { }
ngOnInit() {
this.registerWithPanel();
}
registerWithPanel(): void {
if (this._parentPanel === null || this._parentPanel === undefined) {
this._explicitPanel._registerContent(this.dialogId, this.role as AriaHasPopupValue);
} else {
this._parentPanel._registerContent(this.dialogId, this.role as AriaHasPopupValue);
}
}
}