@angular/material
Version:
Angular Material
67 lines • 10 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 { ComponentHarness, HarnessPredicate, } from '@angular/cdk/testing';
import { coerceNumberProperty } from '@angular/cdk/coercion';
import { ThumbPosition } from './slider-harness-filters';
import { MatSliderThumbHarness } from './slider-thumb-harness';
/** Harness for interacting with a MDC mat-slider in tests. */
export class MatSliderHarness extends ComponentHarness {
static { this.hostSelector = '.mat-mdc-slider'; }
/**
* Gets a `HarnessPredicate` that can be used to search for a slider with specific attributes.
* @param options Options for filtering which input instances are considered a match.
* @return a `HarnessPredicate` configured with the given options.
*/
static with(options = {}) {
return new HarnessPredicate(this, options)
.addOption('isRange', options.isRange, async (harness, value) => {
return (await harness.isRange()) === value;
})
.addOption('disabled', options.disabled, async (harness, disabled) => {
return (await harness.isDisabled()) === disabled;
});
}
/** Gets the start thumb of the slider (only applicable for range sliders). */
async getStartThumb() {
if (!(await this.isRange())) {
throw Error('`getStartThumb` is only applicable for range sliders. ' +
'Did you mean to use `getEndThumb`?');
}
return this.locatorFor(MatSliderThumbHarness.with({ position: ThumbPosition.START }))();
}
/** Gets the thumb (for single point sliders), or the end thumb (for range sliders). */
async getEndThumb() {
return this.locatorFor(MatSliderThumbHarness.with({ position: ThumbPosition.END }))();
}
/** Gets whether the slider is a range slider. */
async isRange() {
return await (await this.host()).hasClass('mdc-slider--range');
}
/** Gets whether the slider is disabled. */
async isDisabled() {
return await (await this.host()).hasClass('mdc-slider--disabled');
}
/** Gets the value step increments of the slider. */
async getStep() {
// The same step value is forwarded to both thumbs.
const startHost = await (await this.getEndThumb()).host();
return coerceNumberProperty(await startHost.getProperty('step'));
}
/** Gets the maximum value of the slider. */
async getMaxValue() {
return (await this.getEndThumb()).getMaxValue();
}
/** Gets the minimum value of the slider. */
async getMinValue() {
const startThumb = (await this.isRange())
? await this.getStartThumb()
: await this.getEndThumb();
return startThumb.getMinValue();
}
}
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