@angular/material
Version:
Angular Material
90 lines • 14.1 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';
/** Harness for interacting with a standard Angular Material step in tests. */
export class MatStepHarness extends ContentContainerComponentHarness {
/**
* Gets a `HarnessPredicate` that can be used to search for a `MatStepHarness` that meets
* certain criteria.
* @param options Options for filtering which steps are considered a match.
* @return a `HarnessPredicate` configured with the given options.
*/
static with(options = {}) {
return new HarnessPredicate(MatStepHarness, options)
.addOption('label', options.label, (harness, label) => HarnessPredicate.stringMatches(harness.getLabel(), label))
.addOption('selected', options.selected, async (harness, selected) => (await harness.isSelected()) === selected)
.addOption('completed', options.completed, async (harness, completed) => (await harness.isCompleted()) === completed)
.addOption('invalid', options.invalid, async (harness, invalid) => (await harness.hasErrors()) === invalid);
}
/** Gets the label of the step. */
async getLabel() {
return (await this.locatorFor('.mat-step-text-label')()).text();
}
/** Gets the `aria-label` of the step. */
async getAriaLabel() {
return (await this.host()).getAttribute('aria-label');
}
/** Gets the value of the `aria-labelledby` attribute. */
async getAriaLabelledby() {
return (await this.host()).getAttribute('aria-labelledby');
}
/** Whether the step is selected. */
async isSelected() {
const host = await this.host();
return (await host.getAttribute('aria-selected')) === 'true';
}
/** Whether the step has been filled out. */
async isCompleted() {
const state = await this._getIconState();
return state === 'done' || (state === 'edit' && !(await this.isSelected()));
}
/**
* Whether the step is currently showing its error state. Note that this doesn't mean that there
* are or aren't any invalid form controls inside the step, but that the step is showing its
* error-specific styling which depends on there being invalid controls, as well as the
* `ErrorStateMatcher` determining that an error should be shown and that the `showErrors`
* option was enabled through the `STEPPER_GLOBAL_OPTIONS` injection token.
*/
async hasErrors() {
return (await this._getIconState()) === 'error';
}
/** Whether the step is optional. */
async isOptional() {
// If the node with the optional text is present, it means that the step is optional.
const optionalNode = await this.locatorForOptional('.mat-step-optional')();
return !!optionalNode;
}
/**
* Selects the given step by clicking on the label. The step may not be selected
* if the stepper doesn't allow it (e.g. if there are validation errors).
*/
async select() {
await (await this.host()).click();
}
async getRootHarnessLoader() {
const contentId = await (await this.host()).getAttribute('aria-controls');
return this.documentRootLocatorFactory().harnessLoaderFor(`#${contentId}`);
}
/**
* Gets the state of the step. Note that we have a `StepState` which we could use to type the
* return value, but it's basically the same as `string`, because the type has `| string`.
*/
async _getIconState() {
// The state is exposed on the icon with a class that looks like `mat-step-icon-state-{{state}}`
const icon = await this.locatorFor('.mat-step-icon')();
const classes = (await icon.getAttribute('class'));
const match = classes.match(/mat-step-icon-state-([a-z]+)/);
if (!match) {
throw Error(`Could not determine step state from "${classes}".`);
}
return match[1];
}
}
/** The selector for the host element of a `MatStep` instance. */
MatStepHarness.hostSelector = '.mat-step-header';
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {\n  ContentContainerComponentHarness,\n  HarnessPredicate,\n  HarnessLoader,\n} from '@angular/cdk/testing';\nimport {StepHarnessFilters} from './step-harness-filters';\n\n/** Harness for interacting with a standard Angular Material step in tests. */\nexport class MatStepHarness extends ContentContainerComponentHarness<string> {\n  /** The selector for the host element of a `MatStep` instance. */\n  static hostSelector = '.mat-step-header';\n\n  /**\n   * Gets a `HarnessPredicate` that can be used to search for a `MatStepHarness` that meets\n   * certain criteria.\n   * @param options Options for filtering which steps are considered a match.\n   * @return a `HarnessPredicate` configured with the given options.\n   */\n  static with(options: StepHarnessFilters = {}): HarnessPredicate<MatStepHarness> {\n    return new HarnessPredicate(MatStepHarness, options)\n      .addOption('label', options.label, (harness, label) =>\n        HarnessPredicate.stringMatches(harness.getLabel(), label),\n      )\n      .addOption(\n        'selected',\n        options.selected,\n        async (harness, selected) => (await harness.isSelected()) === selected,\n      )\n      .addOption(\n        'completed',\n        options.completed,\n        async (harness, completed) => (await harness.isCompleted()) === completed,\n      )\n      .addOption(\n        'invalid',\n        options.invalid,\n        async (harness, invalid) => (await harness.hasErrors()) === invalid,\n      );\n  }\n\n  /** Gets the label of the step. */\n  async getLabel(): Promise<string> {\n    return (await this.locatorFor('.mat-step-text-label')()).text();\n  }\n\n  /** Gets the `aria-label` of the step. */\n  async getAriaLabel(): Promise<string | null> {\n    return (await this.host()).getAttribute('aria-label');\n  }\n\n  /** Gets the value of the `aria-labelledby` attribute. */\n  async getAriaLabelledby(): Promise<string | null> {\n    return (await this.host()).getAttribute('aria-labelledby');\n  }\n\n  /** Whether the step is selected. */\n  async isSelected(): Promise<boolean> {\n    const host = await this.host();\n    return (await host.getAttribute('aria-selected')) === 'true';\n  }\n\n  /** Whether the step has been filled out. */\n  async isCompleted(): Promise<boolean> {\n    const state = await this._getIconState();\n    return state === 'done' || (state === 'edit' && !(await this.isSelected()));\n  }\n\n  /**\n   * Whether the step is currently showing its error state. Note that this doesn't mean that there\n   * are or aren't any invalid form controls inside the step, but that the step is showing its\n   * error-specific styling which depends on there being invalid controls, as well as the\n   * `ErrorStateMatcher` determining that an error should be shown and that the `showErrors`\n   * option was enabled through the `STEPPER_GLOBAL_OPTIONS` injection token.\n   */\n  async hasErrors(): Promise<boolean> {\n    return (await this._getIconState()) === 'error';\n  }\n\n  /** Whether the step is optional. */\n  async isOptional(): Promise<boolean> {\n    // If the node with the optional text is present, it means that the step is optional.\n    const optionalNode = await this.locatorForOptional('.mat-step-optional')();\n    return !!optionalNode;\n  }\n\n  /**\n   * Selects the given step by clicking on the label. The step may not be selected\n   * if the stepper doesn't allow it (e.g. if there are validation errors).\n   */\n  async select(): Promise<void> {\n    await (await this.host()).click();\n  }\n\n  protected override async getRootHarnessLoader(): Promise<HarnessLoader> {\n    const contentId = await (await this.host()).getAttribute('aria-controls');\n    return this.documentRootLocatorFactory().harnessLoaderFor(`#${contentId}`);\n  }\n\n  /**\n   * Gets the state of the step. Note that we have a `StepState` which we could use to type the\n   * return value, but it's basically the same as `string`, because the type has `| string`.\n   */\n  private async _getIconState(): Promise<string> {\n    // The state is exposed on the icon with a class that looks like `mat-step-icon-state-{{state}}`\n    const icon = await this.locatorFor('.mat-step-icon')();\n    const classes = (await icon.getAttribute('class'))!;\n    const match = classes.match(/mat-step-icon-state-([a-z]+)/);\n\n    if (!match) {\n      throw Error(`Could not determine step state from \"${classes}\".`);\n    }\n\n    return match[1];\n  }\n}\n"]}