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* @license\n * Copyright 2017 Google LLC. All Rights Reserved.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * =============================================================================\n */\n\n// We use the pattern below (as opposed to require('jasmine') to create the\n// jasmine module in order to avoid loading node specific modules which may\n// be ignored in browser environments but cannot be ignored in react-native\n// due to the pre-bundling of dependencies that it must do.\n// tslint:disable-next-line:no-require-imports\nconst jasmineRequire = require('jasmine-core/lib/jasmine-core/jasmine.js');\nconst jasmineCore = jasmineRequire.core(jasmineRequire);\nimport {KernelBackend} from './backends/backend';\nimport {ENGINE} from './engine';\nimport {env, Environment, Flags} from './environment';\n\nError.stackTraceLimit = Infinity;\njasmineCore.DEFAULT_TIMEOUT_INTERVAL = 20000;\n\nexport type Constraints = {\n flags?: Flags,\n predicate?: (testEnv: TestEnv) => boolean,\n};\n\nexport const NODE_ENVS: Constraints = {\n predicate: () => env().platformName === 'node'\n};\nexport const CHROME_ENVS: Constraints = {\n flags: {'IS_CHROME': true}\n};\nexport const BROWSER_ENVS: Constraints = {\n predicate: () => env().platformName === 'browser'\n};\n\nexport const SYNC_BACKEND_ENVS: Constraints = {\n predicate: (testEnv: TestEnv) => testEnv.isDataSync === true\n};\n\nexport const HAS_WORKER = {\n predicate: () => typeof (Worker) !== 'undefined' &&\n typeof (Blob) !== 'undefined' && typeof (URL) !== 'undefined'\n};\n\nexport const HAS_NODE_WORKER = {\n predicate: () => {\n let hasWorker = true;\n try {\n require.resolve('worker_threads');\n } catch {\n hasWorker = false;\n }\n return typeof (process) !== 'undefined' && hasWorker;\n }\n};\n\nexport const ALL_ENVS: Constraints = {};\n\n// Tests whether the current environment satisfies the set of constraints.\nexport function envSatisfiesConstraints(\n env: Environment, testEnv: TestEnv, constraints: Constraints): boolean {\n if (constraints == null) {\n return true;\n }\n\n if (constraints.flags != null) {\n for (const flagName in constraints.flags) {\n const flagValue = constraints.flags[flagName];\n if (env.get(flagName) !== flagValue) {\n return false;\n }\n }\n }\n if (constraints.predicate != null && !constraints.predicate(testEnv)) {\n return false;\n }\n return true;\n}\n\nexport interface TestFilter {\n include?: string;\n startsWith?: string;\n excludes?: string[];\n}\n\n/**\n * Add test filtering logic to Jasmine's specFilter hook.\n *\n * @param testFilters Used for include a test suite, with the ability\n * to selectively exclude some of the tests.\n * Either `include` or `startsWith` must exist for a `TestFilter`.\n * Tests that have the substrings specified by the include or startsWith\n * will be included in the test run, unless one of the substrings specified\n * by `excludes` appears in the name.\n * @param customInclude Function to programatically include a test.\n * If this function returns true, a test will immediately run. Otherwise,\n * `testFilters` is used for fine-grained filtering.\n *\n * If a test is not handled by `testFilters` or `customInclude`, the test will\n * be excluded in the test run.\n */\nexport function setupTestFilters(\n testFilters: TestFilter[], customInclude: (name: string) => boolean) {\n const env = jasmine.getEnv();\n\n // Account for --grep flag passed to karma by saving the existing specFilter.\n const grepFilter = env.specFilter;\n\n /**\n * Filter method that returns boolean, if a given test should run or be\n * ignored based on its name. The exclude list has priority over the\n * include list. Thus, if a test matches both the exclude and the include\n * list, it will be exluded.\n */\n // tslint:disable-next-line: no-any\n env.specFilter = (spec: any) => {\n // Filter out tests if the --grep flag is passed.\n if (!grepFilter(spec)) {\n return false;\n }\n\n const name = spec.getFullName();\n\n if (customInclude(name)) {\n return true;\n }\n\n // Include tests of a test suite unless tests are in excludes list.\n for (let i = 0; i < testFilters.length; ++i) {\n const testFilter = testFilters[i];\n if ((testFilter.include != null &&\n name.indexOf(testFilter.include) > -1) ||\n (testFilter.startsWith != null &&\n name.startsWith(testFilter.startsWith))) {\n if (testFilter.excludes != null) {\n for (let j = 0; j < testFilter.excludes.length; j++) {\n if (name.indexOf(testFilter.excludes[j]) > -1) {\n return false;\n }\n }\n }\n return true;\n }\n }\n\n // Otherwise ignore the test.\n return false;\n };\n}\n\nexport function parseTestEnvFromKarmaFlags(\n args: string[], registeredTestEnvs: TestEnv[]): TestEnv {\n let flags: Flags;\n let testEnvName: string;\n\n args.forEach((arg, i) => {\n if (arg === '--flags') {\n flags = JSON.parse(args[i + 1]);\n } else if (arg === '--testEnv') {\n testEnvName = args[i + 1];\n }\n });\n\n const testEnvNames = registeredTestEnvs.map(env => env.name).join(', ');\n if (flags != null && testEnvName == null) {\n throw new Error(\n '--testEnv flag is required when --flags is present. ' +\n `Available values are [${testEnvNames}].`);\n }\n if (testEnvName == null) {\n return null;\n }\n\n let testEnv: TestEnv;\n registeredTestEnvs.forEach(env => {\n if (env.name === testEnvName) {\n testEnv = env;\n }\n });\n if (testEnv == null) {\n throw new Error(\n `Test environment with name ${testEnvName} not ` +\n `found. Available test environment names are ` +\n `${testEnvNames}`);\n }\n if (flags != null) {\n testEnv.flags = flags;\n }\n\n return testEnv;\n}\n\nexport function describeWithFlags(\n name: string, constraints: Constraints, tests: (env: TestEnv) => void) {\n if (TEST_ENVS.length === 0) {\n throw new Error(\n `Found no test environments. This is likely due to test environment ` +\n `registries never being imported or test environment registries ` +\n `being registered too late.`);\n }\n\n TEST_ENVS.forEach(testEnv => {\n env().setFlags(testEnv.flags);\n if (envSatisfiesConstraints(env(), testEnv, constraints)) {\n const testName =\n name + ' ' + testEnv.name + ' ' + JSON.stringify(testEnv.flags || {});\n executeTests(testName, tests, testEnv);\n }\n });\n}\n\nexport interface TestEnv {\n name: string;\n backendName: string;\n flags?: Flags;\n isDataSync?: boolean;\n}\n\nexport const TEST_ENVS: TestEnv[] = [];\n\n// Whether a call to setTestEnvs has been called so we turn off\n// registration. This allows command line overriding or programmatic\n// overriding of the default registrations.\nlet testEnvSet = false;\nexport function setTestEnvs(testEnvs: TestEnv[]) {\n testEnvSet = true;\n TEST_ENVS.length = 0;\n TEST_ENVS.push(...testEnvs);\n}\n\nexport function registerTestEnv(testEnv: TestEnv) {\n // When using an explicit call to setTestEnvs, turn off registration of\n // test environments because the explicit call will set the test\n // environments.\n if (testEnvSet) {\n return;\n }\n TEST_ENVS.push(testEnv);\n}\n\nfunction executeTests(\n testName: string, tests: (env: TestEnv) => void, testEnv: TestEnv) {\n describe(testName, () => {\n beforeAll(async () => {\n ENGINE.reset();\n if (testEnv.flags != null) {\n env().setFlags(testEnv.flags);\n }\n env().set('IS_TEST', true);\n // Await setting the new backend since it can have async init.\n await ENGINE.setBackend(testEnv.backendName);\n });\n\n beforeEach(() => {\n ENGINE.startScope();\n });\n\n afterEach(() => {\n ENGINE.endScope();\n ENGINE.disposeVariables();\n });\n\n afterAll(() => {\n ENGINE.reset();\n });\n\n tests(testEnv);\n });\n}\n\nexport class TestKernelBackend extends KernelBackend {\n dispose(): void {}\n}\n"]} |