@angular/material
Version:
Angular Material
69 lines • 10.7 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';
import { coerceBooleanProperty, coerceNumberProperty } from '@angular/cdk/coercion';
/** Harness for interacting with a standard Angular Material tree node. */
export class MatTreeNodeHarness extends ContentContainerComponentHarness {
constructor() {
super(...arguments);
this._toggle = this.locatorForOptional('[matTreeNodeToggle]');
}
/**
* Gets a `HarnessPredicate` that can be used to search for a tree node with specific attributes.
* @param options Options for narrowing the search
* @return a `HarnessPredicate` configured with the given options.
*/
static with(options = {}) {
return getNodePredicate(MatTreeNodeHarness, options);
}
/** Whether the tree node is expanded. */
async isExpanded() {
return coerceBooleanProperty(await (await this.host()).getAttribute('aria-expanded'));
}
/** Whether the tree node is disabled. */
async isDisabled() {
return coerceBooleanProperty(await (await this.host()).getProperty('aria-disabled'));
}
/** Gets the level of the tree node. Note that this gets the aria-level and is 1 indexed. */
async getLevel() {
return coerceNumberProperty(await (await this.host()).getAttribute('aria-level'));
}
/** Gets the tree node's text. */
async getText() {
return (await this.host()).text({ exclude: '.mat-tree-node, .mat-nested-tree-node, button' });
}
/** Toggles node between expanded/collapsed. Only works when node is not disabled. */
async toggle() {
const toggle = await this._toggle();
if (toggle) {
return toggle.click();
}
}
/** Expands the node if it is collapsed. Only works when node is not disabled. */
async expand() {
if (!(await this.isExpanded())) {
await this.toggle();
}
}
/** Collapses the node if it is expanded. Only works when node is not disabled. */
async collapse() {
if (await this.isExpanded()) {
await this.toggle();
}
}
}
/** The selector of the host element of a `MatTreeNode` instance. */
MatTreeNodeHarness.hostSelector = '.mat-tree-node, .mat-nested-tree-node';
function getNodePredicate(type, options) {
return new HarnessPredicate(type, options)
.addOption('text', options.text, (harness, text) => HarnessPredicate.stringMatches(harness.getText(), text))
.addOption('disabled', options.disabled, async (harness, disabled) => (await harness.isDisabled()) === disabled)
.addOption('expanded', options.expanded, async (harness, expanded) => (await harness.isExpanded()) === expanded)
.addOption('level', options.level, async (harness, level) => (await harness.getLevel()) === level);
}
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