source: trip-planner-front/node_modules/@angular/material/esm2015/tabs/testing/tab-group-harness.js

/**
 * @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, parallel } from '@angular/cdk/testing';
import { MatTabHarness } from './tab-harness';
/** Harness for interacting with a standard mat-tab-group in tests. */
export class MatTabGroupHarness extends ComponentHarness {
    /**
     * Gets a `HarnessPredicate` that can be used to search for a `MatTabGroupHarness` that meets
     * certain criteria.
     * @param options Options for filtering which tab group instances are considered a match.
     * @return a `HarnessPredicate` configured with the given options.
     */
    static with(options = {}) {
        return new HarnessPredicate(MatTabGroupHarness, options)
            .addOption('selectedTabLabel', options.selectedTabLabel, (harness, label) => __awaiter(this, void 0, void 0, function* () {
            const selectedTab = yield harness.getSelectedTab();
            return HarnessPredicate.stringMatches(yield selectedTab.getLabel(), label);
        }));
    }
    /**
     * Gets the list of tabs in the tab group.
     * @param filter Optionally filters which tabs are included.
     */
    getTabs(filter = {}) {
        return __awaiter(this, void 0, void 0, function* () {
            return this.locatorForAll(MatTabHarness.with(filter))();
        });
    }
    /** Gets the selected tab of the tab group. */
    getSelectedTab() {
        return __awaiter(this, void 0, void 0, function* () {
            const tabs = yield this.getTabs();
            const isSelected = yield parallel(() => tabs.map(t => t.isSelected()));
            for (let i = 0; i < tabs.length; i++) {
                if (isSelected[i]) {
                    return tabs[i];
                }
            }
            throw new Error('No selected tab could be found.');
        });
    }
    /**
     * Selects a tab in this tab group.
     * @param filter An optional filter to apply to the child tabs. The first tab matching the filter
     *     will be selected.
     */
    selectTab(filter = {}) {
        return __awaiter(this, void 0, void 0, function* () {
            const tabs = yield this.getTabs(filter);
            if (!tabs.length) {
                throw Error(`Cannot find mat-tab matching filter ${JSON.stringify(filter)}`);
            }
            yield tabs[0].select();
        });
    }
}
/** The selector for the host element of a `MatTabGroup` instance. */
MatTabGroupHarness.hostSelector = '.mat-tab-group';
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