@angular/material
Version:
Angular Material
61 lines • 7.26 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 { __awaiter } from "tslib";
import { ComponentHarness, HarnessPredicate } from '@angular/cdk/testing';
import { MatTabLinkHarness } from './tab-link-harness';
/** Harness for interacting with a standard mat-tab-nav-bar in tests. */
export class MatTabNavBarHarness extends ComponentHarness {
/**
* Gets a `HarnessPredicate` that can be used to search for a `MatTabNavBar` that meets
* certain criteria.
* @param options Options for filtering which tab nav bar instances are considered a match.
* @return a `HarnessPredicate` configured with the given options.
*/
static with(options = {}) {
return new HarnessPredicate(MatTabNavBarHarness, options);
}
/**
* Gets the list of links in the nav bar.
* @param filter Optionally filters which links are included.
*/
getLinks(filter = {}) {
return __awaiter(this, void 0, void 0, function* () {
return this.locatorForAll(MatTabLinkHarness.with(filter))();
});
}
/** Gets the active link in the nav bar. */
getActiveLink() {
return __awaiter(this, void 0, void 0, function* () {
const links = yield this.getLinks();
const isActive = yield Promise.all(links.map(t => t.isActive()));
for (let i = 0; i < links.length; i++) {
if (isActive[i]) {
return links[i];
}
}
throw new Error('No active link could be found.');
});
}
/**
* Clicks a link inside the nav bar.
* @param filter An optional filter to apply to the child link. The first link matching the filter
* will be clicked.
*/
clickLink(filter = {}) {
return __awaiter(this, void 0, void 0, function* () {
const tabs = yield this.getLinks(filter);
if (!tabs.length) {
throw Error(`Cannot find mat-tab-link matching filter ${JSON.stringify(filter)}`);
}
yield tabs[0].click();
});
}
}
/** The selector for the host element of a `MatTabNavBar` instance. */
MatTabNavBarHarness.hostSelector = '.mat-tab-nav-bar';
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