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{"version":3,"file":"testing.mjs","sources":["../../../../../../src/cdk/testing/change-detection.ts","../../../../../../src/cdk/testing/component-harness.ts","../../../../../../src/cdk/testing/harness-environment.ts","../../../../../../src/cdk/testing/test-element.ts","../../../../../../src/cdk/testing/test-element-errors.ts","../../../../../../src/cdk/testing/text-filtering.ts"],"sourcesContent":["/**\n * @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 {BehaviorSubject, Subscription} from 'rxjs';\n\n/** Represents the status of auto change detection. */\nexport interface AutoChangeDetectionStatus {\n /** Whether auto change detection is disabled. */\n isDisabled: boolean;\n /**\n * An optional callback, if present it indicates that change detection should be run immediately,\n * while handling the status change. The callback should then be called as soon as change\n * detection is done.\n */\n onDetectChangesNow?: () => void;\n}\n\n/** Subject used to dispatch and listen for changes to the auto change detection status . */\nconst autoChangeDetectionSubject = new BehaviorSubject<AutoChangeDetectionStatus>({\n isDisabled: false,\n});\n\n/** The current subscription to `autoChangeDetectionSubject`. */\nlet autoChangeDetectionSubscription: Subscription | null;\n\n/**\n * The default handler for auto change detection status changes. This handler will be used if the\n * specific environment does not install its own.\n * @param status The new auto change detection status.\n */\nfunction defaultAutoChangeDetectionHandler(status: AutoChangeDetectionStatus) {\n status.onDetectChangesNow?.();\n}\n\n/**\n * Allows a test `HarnessEnvironment` to install its own handler for auto change detection status\n * changes.\n * @param handler The handler for the auto change detection status.\n */\nexport function handleAutoChangeDetectionStatus(\n handler: (status: AutoChangeDetectionStatus) => void,\n) {\n stopHandlingAutoChangeDetectionStatus();\n autoChangeDetectionSubscription = autoChangeDetectionSubject.subscribe(handler);\n}\n\n/** Allows a `HarnessEnvironment` to stop handling auto change detection status changes. */\nexport function stopHandlingAutoChangeDetectionStatus() {\n autoChangeDetectionSubscription?.unsubscribe();\n autoChangeDetectionSubscription = null;\n}\n\n/**\n * Batches together triggering of change detection over the duration of the given function.\n * @param fn The function to call with batched change detection.\n * @param triggerBeforeAndAfter Optionally trigger change detection once before and after the batch\n * operation. If false, change detection will not be triggered.\n * @return The result of the given function.\n */\nasync function batchChangeDetection<T>(fn: () => Promise<T>, triggerBeforeAndAfter: boolean) {\n // If change detection batching is already in progress, just run the function.\n if (autoChangeDetectionSubject.getValue().isDisabled) {\n return await fn();\n }\n\n // If nothing is handling change detection batching, install the default handler.\n if (!autoChangeDetectionSubscription) {\n handleAutoChangeDetectionStatus(defaultAutoChangeDetectionHandler);\n }\n\n if (triggerBeforeAndAfter) {\n await new Promise(resolve =>\n autoChangeDetectionSubject.next({\n isDisabled: true,\n onDetectChangesNow: resolve as () => void,\n }),\n );\n // The function passed in may throw (e.g. if the user wants to make an expectation of an error\n // being thrown. If this happens, we need to make sure we still re-enable change detection, so\n // we wrap it in a `finally` block.\n try {\n return await fn();\n } finally {\n await new Promise(resolve =>\n autoChangeDetectionSubject.next({\n isDisabled: false,\n onDetectChangesNow: resolve as () => void,\n }),\n );\n }\n } else {\n autoChangeDetectionSubject.next({isDisabled: tru
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