@angular/material
Version:
Angular Material
65 lines • 9.44 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { ContentContainerComponentHarness, HarnessPredicate, } from '@angular/cdk/testing';
/** Harness for interacting with a standard Angular Material tab-label in tests. */
export class MatTabHarness extends ContentContainerComponentHarness {
/**
* Gets a `HarnessPredicate` that can be used to search for a `MatTabHarness` that meets
* certain criteria.
* @param options Options for filtering which tab instances are considered a match.
* @return a `HarnessPredicate` configured with the given options.
*/
static with(options = {}) {
return new HarnessPredicate(MatTabHarness, options).addOption('label', options.label, (harness, label) => HarnessPredicate.stringMatches(harness.getLabel(), label));
}
/** Gets the label of the tab. */
async getLabel() {
return (await this.host()).text();
}
/** Gets the aria-label of the tab. */
async getAriaLabel() {
return (await this.host()).getAttribute('aria-label');
}
/** Gets the value of the "aria-labelledby" attribute. */
async getAriaLabelledby() {
return (await this.host()).getAttribute('aria-labelledby');
}
/** Whether the tab is selected. */
async isSelected() {
const hostEl = await this.host();
return (await hostEl.getAttribute('aria-selected')) === 'true';
}
/** Whether the tab is disabled. */
async isDisabled() {
const hostEl = await this.host();
return (await hostEl.getAttribute('aria-disabled')) === 'true';
}
/** Selects the given tab by clicking on the label. Tab cannot be selected if disabled. */
async select() {
await (await this.host()).click();
}
/** Gets the text content of the tab. */
async getTextContent() {
const contentId = await this._getContentId();
const contentEl = await this.documentRootLocatorFactory().locatorFor(`#${contentId}`)();
return contentEl.text();
}
async getRootHarnessLoader() {
const contentId = await this._getContentId();
return this.documentRootLocatorFactory().harnessLoaderFor(`#${contentId}`);
}
/** Gets the element id for the content of the current tab. */
async _getContentId() {
const hostEl = await this.host();
// Tabs never have an empty "aria-controls" attribute.
return (await hostEl.getAttribute('aria-controls'));
}
}
/** The selector for the host element of a `MatTab` instance. */
MatTabHarness.hostSelector = '.mat-tab-label';
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