export text filtering from cdk/testing

Author: annieyw

src/cdk/testing/protractor/protractor-element.ts

@@ -7,13 +7,14 @@
  */
 
 import {
+  _getTextWithExcludedElements,
   ElementDimensions,
   ModifierKeys,
   TestElement,
-  TestKey, TextOptions
+  TestKey,
+  TextOptions
 } from '@angular/cdk/testing';
 import {browser, ElementFinder, Key} from 'protractor';
-import {getTextWithExcludedElements} from '../text-filtering';
 
 /** Maps the `TestKey` constants to Protractor's `Key` constants. */
 const keyMap = {
@@ -137,7 +138,7 @@ export class ProtractorElement implements TestElement {
 
   async text(options?: TextOptions): Promise<string> {
     if (options?.exclude) {
-      return browser.executeScript(getTextWithExcludedElements, this.element, options.exclude);
+      return browser.executeScript(_getTextWithExcludedElements, this.element, options.exclude);
     }
     return this.element.getText();
   }

src/cdk/testing/public-api.ts

@@ -10,3 +10,4 @@ export * from './component-harness';
 export * from './harness-environment';
 export * from './test-element';
 export * from './element-dimensions';
+export * from './text-filtering';

src/cdk/testing/testbed/unit-test-element.ts

@@ -8,10 +8,12 @@
 
 import * as keyCodes from '@angular/cdk/keycodes';
 import {
+  _getTextWithExcludedElements,
   ElementDimensions,
   ModifierKeys,
   TestElement,
-  TestKey, TextOptions
+  TestKey,
+  TextOptions
 } from '@angular/cdk/testing';
 import {
   clearElement,
@@ -22,7 +24,6 @@ import {
   triggerFocus,
   typeInElement,
 } from './fake-events';
-import {getTextWithExcludedElements} from '../text-filtering';
 
 /** Maps `TestKey` constants to the `keyCode` and `key` values used by native browser events. */
 const keyMap = {
@@ -135,7 +136,7 @@ export class UnitTestElement implements TestElement {
   async text(options?: TextOptions): Promise<string> {
     await this._stabilize();
     if (options?.exclude) {
-      return getTextWithExcludedElements(this.element, options.exclude);
+      return _getTextWithExcludedElements(this.element, options.exclude);
     }
     return (this.element.textContent || '').trim();
   }

src/cdk/testing/text-filtering.ts

@@ -1,9 +1,17 @@
+/**
+ * @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
+ */
+
 /**
  * Gets text of element excluding certain selectors within the element.
  * @param element Element to get text from,
  * @param excludeSelector Selector identifying which elements to exclude,
  */
-export function getTextWithExcludedElements(element: Element, excludeSelector: string) {
+export function _getTextWithExcludedElements(element: Element, excludeSelector: string) {
   const clone = element.cloneNode(true) as Element;
   const exclusions = clone.querySelectorAll(excludeSelector);
   for (let i = 0; i < exclusions.length; i++) {

tools/public_api_guard/cdk/testing.d.ts

@@ -1,3 +1,5 @@
+export declare function _getTextWithExcludedElements(element: Element, excludeSelector: string): string;
+
 export declare type AsyncFactoryFn<T> = () => Promise<T>;
 
 export declare type AsyncOptionPredicate<T, O> = (item: T, option: O) => Promise<boolean>;