86 lines
3.0 KiB
TypeScript
86 lines
3.0 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.dev/license
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*/
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import {
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ComponentHarness,
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ComponentHarnessConstructor,
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HarnessPredicate,
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} from '@angular/cdk/testing';
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import {coerceNumberProperty} from '@angular/cdk/coercion';
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import {SliderHarnessFilters, ThumbPosition} from './slider-harness-filters';
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import {MatSliderThumbHarness} from './slider-thumb-harness';
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/** Harness for interacting with a MDC mat-slider in tests. */
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export class MatSliderHarness extends ComponentHarness {
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static hostSelector = '.mat-mdc-slider';
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/**
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* Gets a `HarnessPredicate` that can be used to search for a slider with specific attributes.
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* @param options Options for filtering which input instances are considered a match.
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* @return a `HarnessPredicate` configured with the given options.
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*/
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static with<T extends MatSliderHarness>(
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this: ComponentHarnessConstructor<T>,
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options: SliderHarnessFilters = {},
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): HarnessPredicate<T> {
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return new HarnessPredicate(this, options)
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.addOption('isRange', options.isRange, async (harness, value) => {
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return (await harness.isRange()) === value;
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})
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.addOption('disabled', options.disabled, async (harness, disabled) => {
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return (await harness.isDisabled()) === disabled;
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});
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}
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/** Gets the start thumb of the slider (only applicable for range sliders). */
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async getStartThumb(): Promise<MatSliderThumbHarness> {
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if (!(await this.isRange())) {
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throw Error(
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'`getStartThumb` is only applicable for range sliders. ' +
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'Did you mean to use `getEndThumb`?',
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);
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}
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return this.locatorFor(MatSliderThumbHarness.with({position: ThumbPosition.START}))();
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}
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/** Gets the thumb (for single point sliders), or the end thumb (for range sliders). */
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async getEndThumb(): Promise<MatSliderThumbHarness> {
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return this.locatorFor(MatSliderThumbHarness.with({position: ThumbPosition.END}))();
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}
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/** Gets whether the slider is a range slider. */
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async isRange(): Promise<boolean> {
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return await (await this.host()).hasClass('mdc-slider--range');
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}
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/** Gets whether the slider is disabled. */
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async isDisabled(): Promise<boolean> {
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return await (await this.host()).hasClass('mdc-slider--disabled');
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}
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/** Gets the value step increments of the slider. */
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async getStep(): Promise<number> {
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// The same step value is forwarded to both thumbs.
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const startHost = await (await this.getEndThumb()).host();
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return coerceNumberProperty(await startHost.getProperty<string>('step'));
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}
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/** Gets the maximum value of the slider. */
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async getMaxValue(): Promise<number> {
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return (await this.getEndThumb()).getMaxValue();
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}
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/** Gets the minimum value of the slider. */
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async getMinValue(): Promise<number> {
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const startThumb = (await this.isRange())
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? await this.getStartThumb()
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: await this.getEndThumb();
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return startThumb.getMinValue();
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}
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}
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