/**
 * @license
 * Copyright 2017 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */
import { KernelBackend } from './backends/backend';
import { Environment, Flags } from './environment';
export declare type Constraints = {
    flags?: Flags;
    predicate?: (testEnv: TestEnv) => boolean;
};
export declare const NODE_ENVS: Constraints;
export declare const CHROME_ENVS: Constraints;
export declare const BROWSER_ENVS: Constraints;
export declare const SYNC_BACKEND_ENVS: Constraints;
export declare const HAS_WORKER: {
    predicate: () => boolean;
};
export declare const HAS_NODE_WORKER: {
    predicate: () => boolean;
};
export declare const ALL_ENVS: Constraints;
export declare function envSatisfiesConstraints(env: Environment, testEnv: TestEnv, constraints: Constraints): boolean;
export interface TestFilter {
    include?: string;
    startsWith?: string;
    excludes?: string[];
}
/**
 * Add test filtering logic to Jasmine's specFilter hook.
 *
 * @param testFilters Used for include a test suite, with the ability
 *     to selectively exclude some of the tests.
 *     Either `include` or `startsWith` must exist for a `TestFilter`.
 *     Tests that have the substrings specified by the include or startsWith
 *     will be included in the test run, unless one of the substrings specified
 *     by `excludes` appears in the name.
 * @param customInclude Function to programatically include a test.
 *     If this function returns true, a test will immediately run. Otherwise,
 *     `testFilters` is used for fine-grained filtering.
 *
 * If a test is not handled by `testFilters` or `customInclude`, the test will
 * be excluded in the test run.
 */
export declare function setupTestFilters(testFilters: TestFilter[], customInclude: (name: string) => boolean): void;
export declare function parseTestEnvFromKarmaFlags(args: string[], registeredTestEnvs: TestEnv[]): TestEnv;
export declare function describeWithFlags(name: string, constraints: Constraints, tests: (env: TestEnv) => void): void;
export interface TestEnv {
    name: string;
    backendName: string;
    flags?: Flags;
    isDataSync?: boolean;
}
export declare const TEST_ENVS: TestEnv[];
export declare function setTestEnvs(testEnvs: TestEnv[]): void;
export declare function registerTestEnv(testEnv: TestEnv): void;
export declare class TestKernelBackend extends KernelBackend {
    dispose(): void;
}