(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
    typeof define === 'function' && define.amd ? define('@angular/cdk/testing', ['exports'], factory) :
    (global = global || self, factory((global.ng = global.ng || {}, global.ng.cdk = global.ng.cdk || {}, global.ng.cdk.testing = {})));
}(this, (function (exports) { 'use strict';

    /*! *****************************************************************************
    Copyright (c) Microsoft Corporation.

    Permission to use, copy, modify, and/or distribute this software for any
    purpose with or without fee is hereby granted.

    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
    REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
    AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
    INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
    LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
    OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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    ***************************************************************************** */
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    /**
     * @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
     */
    /**
     * Base class for component harnesses that all component harness authors should extend. This base
     * component harness provides the basic ability to locate element and sub-component harness. It
     * should be inherited when defining user's own harness.
     */
    var ComponentHarness = /** @class */ (function () {
        function ComponentHarness(locatorFactory) {
            this.locatorFactory = locatorFactory;
        }
        /** Gets a `Promise` for the `TestElement` representing the host element of the component. */
        ComponentHarness.prototype.host = function () {
            return __awaiter(this, void 0, void 0, function () {
                return __generator(this, function (_a) {
                    return [2 /*return*/, this.locatorFactory.rootElement];
                });
            });
        };
        /**
         * Gets a `LocatorFactory` for the document root element. This factory can be used to create
         * locators for elements that a component creates outside of its own root element. (e.g. by
         * appending to document.body).
         */
        ComponentHarness.prototype.documentRootLocatorFactory = function () {
            return this.locatorFactory.documentRootLocatorFactory();
        };
        /**
         * Creates an asynchronous locator function that can be used to find a `ComponentHarness` instance
         * or element under the host element of this `ComponentHarness`.
         * @param queries A list of queries specifying which harnesses and elements to search for:
         *   - A `string` searches for elements matching the CSS selector specified by the string.
         *   - A `ComponentHarness` constructor searches for `ComponentHarness` instances matching the
         *     given class.
         *   - A `HarnessPredicate` searches for `ComponentHarness` instances matching the given
         *     predicate.
         * @return An asynchronous locator function that searches for and returns a `Promise` for the
         *   first element or harness matching the given search criteria. Matches are ordered first by
         *   order in the DOM, and second by order in the queries list. If no matches are found, the
         *   `Promise` rejects. The type that the `Promise` resolves to is a union of all result types for
         *   each query.
         *
         * e.g. Given the following DOM: `<div id="d1" /><div id="d2" />`, and assuming
         * `DivHarness.hostSelector === 'div'`:
         * - `await ch.locatorFor(DivHarness, 'div')()` gets a `DivHarness` instance for `#d1`
         * - `await ch.locatorFor('div', DivHarness)()` gets a `TestElement` instance for `#d1`
         * - `await ch.locatorFor('span')()` throws because the `Promise` rejects.
         */
        ComponentHarness.prototype.locatorFor = function () {
            var _a;
            var queries = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                queries[_i] = arguments[_i];
            }
            return (_a = this.locatorFactory).locatorFor.apply(_a, __spread(queries));
        };
        /**
         * Creates an asynchronous locator function that can be used to find a `ComponentHarness` instance
         * or element under the host element of this `ComponentHarness`.
         * @param queries A list of queries specifying which harnesses and elements to search for:
         *   - A `string` searches for elements matching the CSS selector specified by the string.
         *   - A `ComponentHarness` constructor searches for `ComponentHarness` instances matching the
         *     given class.
         *   - A `HarnessPredicate` searches for `ComponentHarness` instances matching the given
         *     predicate.
         * @return An asynchronous locator function that searches for and returns a `Promise` for the
         *   first element or harness matching the given search criteria. Matches are ordered first by
         *   order in the DOM, and second by order in the queries list. If no matches are found, the
         *   `Promise` is resolved with `null`. The type that the `Promise` resolves to is a union of all
         *   result types for each query or null.
         *
         * e.g. Given the following DOM: `<div id="d1" /><div id="d2" />`, and assuming
         * `DivHarness.hostSelector === 'div'`:
         * - `await ch.locatorForOptional(DivHarness, 'div')()` gets a `DivHarness` instance for `#d1`
         * - `await ch.locatorForOptional('div', DivHarness)()` gets a `TestElement` instance for `#d1`
         * - `await ch.locatorForOptional('span')()` gets `null`.
         */
        ComponentHarness.prototype.locatorForOptional = function () {
            var _a;
            var queries = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                queries[_i] = arguments[_i];
            }
            return (_a = this.locatorFactory).locatorForOptional.apply(_a, __spread(queries));
        };
        /**
         * Creates an asynchronous locator function that can be used to find `ComponentHarness` instances
         * or elements under the host element of this `ComponentHarness`.
         * @param queries A list of queries specifying which harnesses and elements to search for:
         *   - A `string` searches for elements matching the CSS selector specified by the string.
         *   - A `ComponentHarness` constructor searches for `ComponentHarness` instances matching the
         *     given class.
         *   - A `HarnessPredicate` searches for `ComponentHarness` instances matching the given
         *     predicate.
         * @return An asynchronous locator function that searches for and returns a `Promise` for all
         *   elements and harnesses matching the given search criteria. Matches are ordered first by
         *   order in the DOM, and second by order in the queries list. If an element matches more than
         *   one `ComponentHarness` class, the locator gets an instance of each for the same element. If
         *   an element matches multiple `string` selectors, only one `TestElement` instance is returned
         *   for that element. The type that the `Promise` resolves to is an array where each element is
         *   the union of all result types for each query.
         *
         * e.g. Given the following DOM: `<div id="d1" /><div id="d2" />`, and assuming
         * `DivHarness.hostSelector === 'div'` and `IdIsD1Harness.hostSelector === '#d1'`:
         * - `await ch.locatorForAll(DivHarness, 'div')()` gets `[
         *     DivHarness, // for #d1
         *     TestElement, // for #d1
         *     DivHarness, // for #d2
         *     TestElement // for #d2
         *   ]`
         * - `await ch.locatorForAll('div', '#d1')()` gets `[
         *     TestElement, // for #d1
         *     TestElement // for #d2
         *   ]`
         * - `await ch.locatorForAll(DivHarness, IdIsD1Harness)()` gets `[
         *     DivHarness, // for #d1
         *     IdIsD1Harness, // for #d1
         *     DivHarness // for #d2
         *   ]`
         * - `await ch.locatorForAll('span')()` gets `[]`.
         */
        ComponentHarness.prototype.locatorForAll = function () {
            var _a;
            var queries = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                queries[_i] = arguments[_i];
            }
            return (_a = this.locatorFactory).locatorForAll.apply(_a, __spread(queries));
        };
        /**
         * Flushes change detection and async tasks in the Angular zone.
         * In most cases it should not be necessary to call this manually. However, there may be some edge
         * cases where it is needed to fully flush animation events.
         */
        ComponentHarness.prototype.forceStabilize = function () {
            return __awaiter(this, void 0, void 0, function () {
                return __generator(this, function (_a) {
                    return [2 /*return*/, this.locatorFactory.forceStabilize()];
                });
            });
        };
        /**
         * Waits for all scheduled or running async tasks to complete. This allows harness
         * authors to wait for async tasks outside of the Angular zone.
         */
        ComponentHarness.prototype.waitForTasksOutsideAngular = function () {
            return __awaiter(this, void 0, void 0, function () {
                return __generator(this, function (_a) {
                    return [2 /*return*/, this.locatorFactory.waitForTasksOutsideAngular()];
                });
            });
        };
        return ComponentHarness;
    }());
    /**
     * A class used to associate a ComponentHarness class with predicates functions that can be used to
     * filter instances of the class.
     */
    var HarnessPredicate = /** @class */ (function () {
        function HarnessPredicate(harnessType, options) {
            this.harnessType = harnessType;
            this._predicates = [];
            this._descriptions = [];
            this._addBaseOptions(options);
        }
        /**
         * Checks if the specified nullable string value matches the given pattern.
         * @param value The nullable string value to check, or a Promise resolving to the
         *   nullable string value.
         * @param pattern The pattern the value is expected to match. If `pattern` is a string,
         *   `value` is expected to match exactly. If `pattern` is a regex, a partial match is
         *   allowed. If `pattern` is `null`, the value is expected to be `null`.
         * @return Whether the value matches the pattern.
         */
        HarnessPredicate.stringMatches = function (value, pattern) {
            return __awaiter(this, void 0, void 0, function () {
                return __generator(this, function (_a) {
                    switch (_a.label) {
                        case 0: return [4 /*yield*/, value];
                        case 1:
                            value = _a.sent();
                            if (pattern === null) {
                                return [2 /*return*/, value === null];
                            }
                            else if (value === null) {
                                return [2 /*return*/, false];
                            }
                            return [2 /*return*/, typeof pattern === 'string' ? value === pattern : pattern.test(value)];
                    }
                });
            });
        };
        /**
         * Adds a predicate function to be run against candidate harnesses.
         * @param description A description of this predicate that may be used in error messages.
         * @param predicate An async predicate function.
         * @return this (for method chaining).
         */
        HarnessPredicate.prototype.add = function (description, predicate) {
            this._descriptions.push(description);
            this._predicates.push(predicate);
            return this;
        };
        /**
         * Adds a predicate function that depends on an option value to be run against candidate
         * harnesses. If the option value is undefined, the predicate will be ignored.
         * @param name The name of the option (may be used in error messages).
         * @param option The option value.
         * @param predicate The predicate function to run if the option value is not undefined.
         * @return this (for method chaining).
         */
        HarnessPredicate.prototype.addOption = function (name, option, predicate) {
            if (option !== undefined) {
                this.add(name + " = " + _valueAsString(option), function (item) { return predicate(item, option); });
            }
            return this;
        };
        /**
         * Filters a list of harnesses on this predicate.
         * @param harnesses The list of harnesses to filter.
         * @return A list of harnesses that satisfy this predicate.
         */
        HarnessPredicate.prototype.filter = function (harnesses) {
            return __awaiter(this, void 0, void 0, function () {
                var results;
                var _this = this;
                return __generator(this, function (_a) {
                    switch (_a.label) {
                        case 0: return [4 /*yield*/, Promise.all(harnesses.map(function (h) { return _this.evaluate(h); }))];
                        case 1:
                            results = _a.sent();
                            return [2 /*return*/, harnesses.filter(function (_, i) { return results[i]; })];
                    }
                });
            });
        };
        /**
         * Evaluates whether the given harness satisfies this predicate.
         * @param harness The harness to check
         * @return A promise that resolves to true if the harness satisfies this predicate,
         *   and resolves to false otherwise.
         */
        HarnessPredicate.prototype.evaluate = function (harness) {
            return __awaiter(this, void 0, void 0, function () {
                var results;
                return __generator(this, function (_a) {
                    switch (_a.label) {
                        case 0: return [4 /*yield*/, Promise.all(this._predicates.map(function (p) { return p(harness); }))];
                        case 1:
                            results = _a.sent();
                            return [2 /*return*/, results.reduce(function (combined, current) { return combined && current; }, true)];
                    }
                });
            });
        };
        /** Gets a description of this predicate for use in error messages. */
        HarnessPredicate.prototype.getDescription = function () {
            return this._descriptions.join(', ');
        };
        /** Gets the selector used to find candidate elements. */
        HarnessPredicate.prototype.getSelector = function () {
            var _this = this;
            return this._ancestor.split(',')
                .map(function (part) { return (part.trim() + " " + _this.harnessType.hostSelector).trim(); })
                .join(',');
        };
        /** Adds base options common to all harness types. */
        HarnessPredicate.prototype._addBaseOptions = function (options) {
            var _this = this;
            this._ancestor = options.ancestor || '';
            if (this._ancestor) {
                this._descriptions.push("has ancestor matching selector \"" + this._ancestor + "\"");
            }
            var selector = options.selector;
            if (selector !== undefined) {
                this.add("host matches selector \"" + selector + "\"", function (item) { return __awaiter(_this, void 0, void 0, function () {
                    return __generator(this, function (_a) {
                        switch (_a.label) {
                            case 0: return [4 /*yield*/, item.host()];
                            case 1: return [2 /*return*/, (_a.sent()).matchesSelector(selector)];
                        }
                    });
                }); });
            }
        };
        return HarnessPredicate;
    }());
    /** Represent a value as a string for the purpose of logging. */
    function _valueAsString(value) {
        if (value === undefined) {
            return 'undefined';
        }
        // `JSON.stringify` doesn't handle RegExp properly, so we need a custom replacer.
        try {
            return JSON.stringify(value, function (_, v) {
                if (v instanceof RegExp) {
                    return "/" + v.toString() + "/";
                }
                return typeof v === 'string' ? v.replace('/\//g', '\\/') : v;
            }).replace(/"\/\//g, '\\/').replace(/\/\/"/g, '\\/').replace(/\\\//g, '/');
        }
        catch (_a) {
            // `JSON.stringify` will throw if the object is cyclical,
            // in this case the best we can do is report the value as `{...}`.
            return '{...}';
        }
    }

    /**
     * @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
     */
    /**
     * Base harness environment class that can be extended to allow `ComponentHarness`es to be used in
     * different test environments (e.g. testbed, protractor, etc.). This class implements the
     * functionality of both a `HarnessLoader` and `LocatorFactory`. This class is generic on the raw
     * element type, `E`, used by the particular test environment.
     */
    var HarnessEnvironment = /** @class */ (function () {
        function HarnessEnvironment(rawRootElement) {
            this.rawRootElement = rawRootElement;
            this.rootElement = this.createTestElement(rawRootElement);
        }
        // Implemented as part of the `LocatorFactory` interface.
        HarnessEnvironment.prototype.documentRootLocatorFactory = function () {
            return this.createEnvironment(this.getDocumentRoot());
        };
        // Implemented as part of the `LocatorFactory` interface.
        HarnessEnvironment.prototype.locatorFor = function () {
            var _this = this;
            var queries = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                queries[_i] = arguments[_i];
            }
            return function () { return _assertResultFound(_this._getAllHarnessesAndTestElements(queries), _getDescriptionForLocatorForQueries(queries)); };
        };
        // Implemented as part of the `LocatorFactory` interface.
        HarnessEnvironment.prototype.locatorForOptional = function () {
            var _this = this;
            var queries = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                queries[_i] = arguments[_i];
            }
            return function () { return __awaiter(_this, void 0, void 0, function () { return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, this._getAllHarnessesAndTestElements(queries)];
                    case 1: return [2 /*return*/, (_a.sent())[0] || null];
                }
            }); }); };
        };
        // Implemented as part of the `LocatorFactory` interface.
        HarnessEnvironment.prototype.locatorForAll = function () {
            var _this = this;
            var queries = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                queries[_i] = arguments[_i];
            }
            return function () { return _this._getAllHarnessesAndTestElements(queries); };
        };
        // Implemented as part of the `LocatorFactory` interface.
        HarnessEnvironment.prototype.harnessLoaderFor = function (selector) {
            return __awaiter(this, void 0, void 0, function () {
                var _a;
                return __generator(this, function (_b) {
                    switch (_b.label) {
                        case 0:
                            _a = this.createEnvironment;
                            return [4 /*yield*/, _assertResultFound(this.getAllRawElements(selector), [_getDescriptionForHarnessLoaderQuery(selector)])];
                        case 1: return [2 /*return*/, _a.apply(this, [_b.sent()])];
                    }
                });
            });
        };
        // Implemented as part of the `LocatorFactory` interface.
        HarnessEnvironment.prototype.harnessLoaderForOptional = function (selector) {
            return __awaiter(this, void 0, void 0, function () {
                var elements;
                return __generator(this, function (_a) {
                    switch (_a.label) {
                        case 0: return [4 /*yield*/, this.getAllRawElements(selector)];
                        case 1:
                            elements = _a.sent();
                            return [2 /*return*/, elements[0] ? this.createEnvironment(elements[0]) : null];
                    }
                });
            });
        };
        // Implemented as part of the `LocatorFactory` interface.
        HarnessEnvironment.prototype.harnessLoaderForAll = function (selector) {
            return __awaiter(this, void 0, void 0, function () {
                var elements;
                var _this = this;
                return __generator(this, function (_a) {
                    switch (_a.label) {
                        case 0: return [4 /*yield*/, this.getAllRawElements(selector)];
                        case 1:
                            elements = _a.sent();
                            return [2 /*return*/, elements.map(function (element) { return _this.createEnvironment(element); })];
                    }
                });
            });
        };
        // Implemented as part of the `HarnessLoader` interface.
        HarnessEnvironment.prototype.getHarness = function (query) {
            return this.locatorFor(query)();
        };
        // Implemented as part of the `HarnessLoader` interface.
        HarnessEnvironment.prototype.getAllHarnesses = function (query) {
            return this.locatorForAll(query)();
        };
        // Implemented as part of the `HarnessLoader` interface.
        HarnessEnvironment.prototype.getChildLoader = function (selector) {
            return __awaiter(this, void 0, void 0, function () {
                var _a;
                return __generator(this, function (_b) {
                    switch (_b.label) {
                        case 0:
                            _a = this.createEnvironment;
                            return [4 /*yield*/, _assertResultFound(this.getAllRawElements(selector), [_getDescriptionForHarnessLoaderQuery(selector)])];
                        case 1: return [2 /*return*/, _a.apply(this, [_b.sent()])];
                    }
                });
            });
        };
        // Implemented as part of the `HarnessLoader` interface.
        HarnessEnvironment.prototype.getAllChildLoaders = function (selector) {
            return __awaiter(this, void 0, void 0, function () {
                var _this = this;
                return __generator(this, function (_a) {
                    switch (_a.label) {
                        case 0: return [4 /*yield*/, this.getAllRawElements(selector)];
                        case 1: return [2 /*return*/, (_a.sent()).map(function (e) { return _this.createEnvironment(e); })];
                    }
                });
            });
        };
        /** Creates a `ComponentHarness` for the given harness type with the given raw host element. */
        HarnessEnvironment.prototype.createComponentHarness = function (harnessType, element) {
            return new harnessType(this.createEnvironment(element));
        };
        /**
         * Matches the given raw elements with the given list of element and harness queries to produce a
         * list of matched harnesses and test elements.
         */
        HarnessEnvironment.prototype._getAllHarnessesAndTestElements = function (queries) {
            return __awaiter(this, void 0, void 0, function () {
                var _a, allQueries, harnessQueries, elementQueries, harnessTypes, rawElements, skipSelectorCheck, perElementMatches;
                var _b;
                var _this = this;
                return __generator(this, function (_c) {
                    switch (_c.label) {
                        case 0:
                            _a = _parseQueries(queries), allQueries = _a.allQueries, harnessQueries = _a.harnessQueries, elementQueries = _a.elementQueries, harnessTypes = _a.harnessTypes;
                            return [4 /*yield*/, this.getAllRawElements(__spread(elementQueries, harnessQueries.map(function (predicate) { return predicate.getSelector(); })).join(','))];
                        case 1:
                            rawElements = _c.sent();
                            skipSelectorCheck = (elementQueries.length === 0 && harnessTypes.size === 1) ||
                                harnessQueries.length === 0;
                            return [4 /*yield*/, Promise.all(rawElements.map(function (rawElement) { return __awaiter(_this, void 0, void 0, function () {
                                    var testElement, allResultsForElement;
                                    var _this = this;
                                    return __generator(this, function (_a) {
                                        switch (_a.label) {
                                            case 0:
                                                testElement = this.createTestElement(rawElement);
                                                return [4 /*yield*/, Promise.all(
                                                    // For each query, get `null` if it doesn't match, or a `TestElement` or
                                                    // `ComponentHarness` as appropriate if it does match. This gives us everything that
                                                    // matches the current raw element, but it may contain duplicate entries (e.g. multiple
                                                    // `TestElement` or multiple `ComponentHarness` of the same type.
                                                    allQueries.map(function (query) {
                                                        return _this._getQueryResultForElement(query, rawElement, testElement, skipSelectorCheck);
                                                    }))];
                                            case 1:
                                                allResultsForElement = _a.sent();
                                                return [2 /*return*/, _removeDuplicateQueryResults(allResultsForElement)];
                                        }
                                    });
                                }); }))];
                        case 2:
                            perElementMatches = _c.sent();
                            return [2 /*return*/, (_b = []).concat.apply(_b, __spread(perElementMatches))];
                    }
                });
            });
        };
        /**
         * Check whether the given query matches the given element, if it does return the matched
         * `TestElement` or `ComponentHarness`, if it does not, return null. In cases where the caller
         * knows for sure that the query matches the element's selector, `skipSelectorCheck` can be used
         * to skip verification and optimize performance.
         */
        HarnessEnvironment.prototype._getQueryResultForElement = function (query, rawElement, testElement, skipSelectorCheck) {
            if (skipSelectorCheck === void 0) { skipSelectorCheck = false; }
            return __awaiter(this, void 0, void 0, function () {
                var _a, _b, harness;
                return __generator(this, function (_c) {
                    switch (_c.label) {
                        case 0:
                            if (!(typeof query === 'string')) return [3 /*break*/, 3];
                            _a = skipSelectorCheck;
                            if (_a) return [3 /*break*/, 2];
                            return [4 /*yield*/, testElement.matchesSelector(query)];
                        case 1:
                            _a = (_c.sent());
                            _c.label = 2;
                        case 2: return [2 /*return*/, ((_a) ? testElement : null)];
                        case 3:
                            _b = skipSelectorCheck;
                            if (_b) return [3 /*break*/, 5];
                            return [4 /*yield*/, testElement.matchesSelector(query.getSelector())];
                        case 4:
                            _b = (_c.sent());
                            _c.label = 5;
                        case 5:
                            if (!_b) return [3 /*break*/, 7];
                            harness = this.createComponentHarness(query.harnessType, rawElement);
                            return [4 /*yield*/, query.evaluate(harness)];
                        case 6: return [2 /*return*/, (_c.sent()) ? harness : null];
                        case 7: return [2 /*return*/, null];
                    }
                });
            });
        };
        return HarnessEnvironment;
    }());
    /**
     * Parses a list of queries in the format accepted by the `locatorFor*` methods into an easier to
     * work with format.
     */
    function _parseQueries(queries) {
        var e_1, _a;
        var allQueries = [];
        var harnessQueries = [];
        var elementQueries = [];
        var harnessTypes = new Set();
        try {
            for (var queries_1 = __values(queries), queries_1_1 = queries_1.next(); !queries_1_1.done; queries_1_1 = queries_1.next()) {
                var query = queries_1_1.value;
                if (typeof query === 'string') {
                    allQueries.push(query);
                    elementQueries.push(query);
                }
                else {
                    var predicate = query instanceof HarnessPredicate ? query : new HarnessPredicate(query, {});
                    allQueries.push(predicate);
                    harnessQueries.push(predicate);
                    harnessTypes.add(predicate.harnessType);
                }
            }
        }
        catch (e_1_1) { e_1 = { error: e_1_1 }; }
        finally {
            try {
                if (queries_1_1 && !queries_1_1.done && (_a = queries_1.return)) _a.call(queries_1);
            }
            finally { if (e_1) throw e_1.error; }
        }
        return { allQueries: allQueries, harnessQueries: harnessQueries, elementQueries: elementQueries, harnessTypes: harnessTypes };
    }
    /**
     * Removes duplicate query results for a particular element. (e.g. multiple `TestElement`
     * instances or multiple instances of the same `ComponentHarness` class.
     */
    function _removeDuplicateQueryResults(results) {
        return __awaiter(this, void 0, void 0, function () {
            var testElementMatched, matchedHarnessTypes, dedupedMatches, results_1, results_1_1, result;
            var e_2, _a;
            return __generator(this, function (_b) {
                testElementMatched = false;
                matchedHarnessTypes = new Set();
                dedupedMatches = [];
                try {
                    for (results_1 = __values(results), results_1_1 = results_1.next(); !results_1_1.done; results_1_1 = results_1.next()) {
                        result = results_1_1.value;
                        if (!result) {
                            continue;
                        }
                        if (result instanceof ComponentHarness) {
                            if (!matchedHarnessTypes.has(result.constructor)) {
                                matchedHarnessTypes.add(result.constructor);
                                dedupedMatches.push(result);
                            }
                        }
                        else if (!testElementMatched) {
                            testElementMatched = true;
                            dedupedMatches.push(result);
                        }
                    }
                }
                catch (e_2_1) { e_2 = { error: e_2_1 }; }
                finally {
                    try {
                        if (results_1_1 && !results_1_1.done && (_a = results_1.return)) _a.call(results_1);
                    }
                    finally { if (e_2) throw e_2.error; }
                }
                return [2 /*return*/, dedupedMatches];
            });
        });
    }
    /** Verifies that there is at least one result in an array. */
    function _assertResultFound(results, queryDescriptions) {
        return __awaiter(this, void 0, void 0, function () {
            var result;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, results];
                    case 1:
                        result = (_a.sent())[0];
                        if (result == undefined) {
                            throw Error("Failed to find element matching one of the following queries:\n" +
                                queryDescriptions.map(function (desc) { return "(" + desc + ")"; }).join(',\n'));
                        }
                        return [2 /*return*/, result];
                }
            });
        });
    }
    /** Gets a list of description strings from a list of queries. */
    function _getDescriptionForLocatorForQueries(queries) {
        return queries.map(function (query) { return typeof query === 'string' ?
            _getDescriptionForTestElementQuery(query) : _getDescriptionForComponentHarnessQuery(query); });
    }
    /** Gets a description string for a `ComponentHarness` query. */
    function _getDescriptionForComponentHarnessQuery(query) {
        var harnessPredicate = query instanceof HarnessPredicate ? query : new HarnessPredicate(query, {});
        var _a = harnessPredicate.harnessType, name = _a.name, hostSelector = _a.hostSelector;
        var description = name + " with host element matching selector: \"" + hostSelector + "\"";
        var constraints = harnessPredicate.getDescription();
        return description + (constraints ?
            " satisfying the constraints: " + harnessPredicate.getDescription() : '');
    }
    /** Gets a description string for a `TestElement` query. */
    function _getDescriptionForTestElementQuery(selector) {
        return "TestElement for element matching selector: \"" + selector + "\"";
    }
    /** Gets a description string for a `HarnessLoader` query. */
    function _getDescriptionForHarnessLoaderQuery(selector) {
        return "HarnessLoader for element matching selector: \"" + selector + "\"";
    }

    /**
     * @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
     */
    (function (TestKey) {
        TestKey[TestKey["BACKSPACE"] = 0] = "BACKSPACE";
        TestKey[TestKey["TAB"] = 1] = "TAB";
        TestKey[TestKey["ENTER"] = 2] = "ENTER";
        TestKey[TestKey["SHIFT"] = 3] = "SHIFT";
        TestKey[TestKey["CONTROL"] = 4] = "CONTROL";
        TestKey[TestKey["ALT"] = 5] = "ALT";
        TestKey[TestKey["ESCAPE"] = 6] = "ESCAPE";
        TestKey[TestKey["PAGE_UP"] = 7] = "PAGE_UP";
        TestKey[TestKey["PAGE_DOWN"] = 8] = "PAGE_DOWN";
        TestKey[TestKey["END"] = 9] = "END";
        TestKey[TestKey["HOME"] = 10] = "HOME";
        TestKey[TestKey["LEFT_ARROW"] = 11] = "LEFT_ARROW";
        TestKey[TestKey["UP_ARROW"] = 12] = "UP_ARROW";
        TestKey[TestKey["RIGHT_ARROW"] = 13] = "RIGHT_ARROW";
        TestKey[TestKey["DOWN_ARROW"] = 14] = "DOWN_ARROW";
        TestKey[TestKey["INSERT"] = 15] = "INSERT";
        TestKey[TestKey["DELETE"] = 16] = "DELETE";
        TestKey[TestKey["F1"] = 17] = "F1";
        TestKey[TestKey["F2"] = 18] = "F2";
        TestKey[TestKey["F3"] = 19] = "F3";
        TestKey[TestKey["F4"] = 20] = "F4";
        TestKey[TestKey["F5"] = 21] = "F5";
        TestKey[TestKey["F6"] = 22] = "F6";
        TestKey[TestKey["F7"] = 23] = "F7";
        TestKey[TestKey["F8"] = 24] = "F8";
        TestKey[TestKey["F9"] = 25] = "F9";
        TestKey[TestKey["F10"] = 26] = "F10";
        TestKey[TestKey["F11"] = 27] = "F11";
        TestKey[TestKey["F12"] = 28] = "F12";
        TestKey[TestKey["META"] = 29] = "META";
    })(exports.TestKey || (exports.TestKey = {}));

    /**
     * @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
     */

    /**
     * @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
     */

    /**
     * @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
     */

    exports.ComponentHarness = ComponentHarness;
    exports.HarnessEnvironment = HarnessEnvironment;
    exports.HarnessPredicate = HarnessPredicate;

    Object.defineProperty(exports, '__esModule', { value: true });

})));
//# sourceMappingURL=cdk-testing.umd.js.map
