| 1 | 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{\n Task,\n CancellablePromise,\n isPromiseLike,\n isTask\n} from '@theintern/common';\n\nimport { Executor } from './executors/Executor';\nimport Deferred from './Deferred';\nimport { InternError } from './types';\nimport { Remote } from './executors/Node';\nimport Suite from './Suite';\n\n/**\n * A Test is a single unit or functional test.\n */\nexport default class Test implements TestProperties {\n /** The name of this test */\n name!: string;\n\n /** This test's parent Suite */\n parent!: Suite;\n\n /** If this test was skipped, this will contain a message indicating why */\n skipped: string | undefined;\n\n /** The test function that is run by this Test */\n test!: TestFunction;\n\n /** The error that caused this Test to fail */\n error: InternError | undefined;\n\n protected _hasPassed = false;\n\n protected _isAsync = false;\n\n protected _timeout: number | undefined;\n\n protected _runTask: CancellablePromise<any> | undefined;\n\n protected _timeElapsed: number | undefined;\n\n // Use type 'any' because we may be running under Node (NodeJS.Timer) or a\n // browser (number)\n protected _timer: any | undefined;\n\n protected _usesRemote = false;\n\n constructor(\n options: TestOptions & { timeElapsed?: number; hasPassed?: boolean }\n ) {\n if (!options.name || !options.test) {\n throw new Error('A Test requires a name and a test function');\n }\n\n ['timeElapsed', 'hasPassed'].forEach(property => {\n const name = <keyof TestOptions>property;\n if (options[name] != null) {\n (<any>this)[`_${name}`] = options[name];\n }\n delete options[name];\n });\n\n Object.assign(this, options);\n }\n\n /**\n * The executor running this test.\n */\n get executor(): Executor {\n return this.parent && this.parent.executor;\n }\n\n /**\n * True if the test function completed successfully\n */\n get hasPassed() {\n return this._hasPassed;\n }\n\n /**\n * The unique identifier of the test, assuming all combinations of suite +\n * test are unique.\n */\n get id() {\n let name: string[] = [];\n let suiteOrTest: Suite | Test = this;\n\n do {\n suiteOrTest.name != null && name.unshift(suiteOrTest.name);\n } while ((suiteOrTest = suiteOrTest.parent as Suite | Test));\n\n return name.join(' - ');\n }\n\n /**\n * If true, this Test's test function is async\n */\n get isAsync() {\n return this._isAsync;\n }\n\n /**\n * The unique identifier of the test's parent.\n */\n get parentId() {\n return this.parent.id;\n }\n\n /**\n * The WebDriver interface for driving a remote environment.\n * @see Suite#remote\n */\n get remote(): Remote {\n this._usesRemote = true;\n return this.parent.remote;\n }\n\n /**\n * An identifier for the test session this Test is running in.\n */\n get sessionId() {\n return this.parent.sessionId;\n }\n\n /**\n * The number of milliseconds the test function took to complete.\n */\n get timeElapsed() {\n return this._timeElapsed;\n }\n\n /**\n * The number of milliseconds this test can run before it will be canceled.\n */\n get timeout() {\n if (this._timeout != null) {\n return this._timeout;\n }\n if (this.parent && this.parent.timeout != null) {\n return this.parent.timeout;\n }\n return 30000;\n }\n\n set timeout(value) {\n this._timeout = value;\n }\n\n /**\n * This is a convenience function that generates and returns a special\n * [[lib/Deferred.Deferred]] that can be used for asynchronous testing.\n *\n * Once this method is called, a test is assumed to be asynchronous no\n * matter its return value (the generated Deferred's promise will always be\n * used as the implied return value if a promise is not returned by the test\n * function).\n *\n * The optional `numCallsUntilResolution` argument to `async` affects how the\n * callback method operates. By default, the Deferred is resolved (assuming\n * it hasn’t already been rejected) the first time the function returned by\n * `callback` is called. If `numCallsUntilResolution` is set (it must be a\n * value > 0), the function returned by `callback` must be called\n * `numCallsUntilResolution` times before the Deferred resolves.\n *\n * @param timeout If provided, the amount of time to wait before rejecting\n * the test with a timeout error, in milliseconds.\n * @param numCallsUntilResolution The number of times that resolve needs to\n * be called before the Deferred is actually resolved.\n * @returns a lib/Deferred that can be used to resolve the test\n */\n async(timeout?: number, numCallsUntilResolution?: number): Deferred<any> {\n this._isAsync = true;\n\n if (timeout != null) {\n this.timeout = timeout;\n }\n\n let remainingCalls = numCallsUntilResolution || 1;\n const dfd = new Deferred();\n const oldResolve = dfd.resolve;\n\n /**\n * Eventually resolves the deferred, once `resolve` has been called as\n * many times as specified by the `numCallsUntilResolution` parameter of\n * the original `async` call.\n */\n dfd.resolve = function<T>(this: any, value?: T) {\n --remainingCalls;\n if (remainingCalls === 0) {\n oldResolve.call(this, value);\n } else if (remainingCalls < 0) {\n throw new Error('resolve called too many times');\n }\n };\n\n // A test may call this function multiple times and should always get\n // the same Deferred\n this.async = function() {\n return dfd;\n };\n\n return dfd;\n }\n\n /**\n * During an asynchronous test run, restarts the timeout timer.\n */\n restartTimeout(timeout?: number) {\n if (timeout != null) {\n this.timeout = timeout;\n }\n\n if (this._runTask) {\n if (this._timer) {\n clearTimeout(this._timer);\n }\n this._timer = setTimeout(() => {\n this._timer = undefined;\n if (this._runTask) {\n const error = new Error(`Timeout reached on ${this.id}#`);\n error.name = 'TimeoutError';\n this.error = error;\n this._runTask.cancel();\n }\n }, this.timeout);\n }\n }\n\n /**\n * Runs the test.\n */\n run() {\n let startTime: number;\n\n // Cancel any currently running test\n if (this._runTask) {\n this._runTask.cancel();\n this._runTask = undefined;\n }\n\n if (this._timer) {\n clearTimeout(this._timer);\n this._timer = undefined;\n }\n\n // Reset some state in case someone tries to re-run the same test\n this._usesRemote = false;\n this._hasPassed = false;\n this._isAsync = false;\n this._timeElapsed = 0;\n this._runTask = undefined;\n this.async = Object.getPrototypeOf(this).async;\n this.error = undefined;\n this.skipped = undefined;\n\n return this.executor\n .emit('testStart', this)\n .then(() => {\n startTime = Date.now();\n })\n .then<void>(() => {\n let result: PromiseLike<any> | void = this.test(this);\n\n // Someone called `this.async`, so this test is async; we have\n // to prefer one or the other, so prefer the promise returned\n // from the test function if it exists, otherwise get the one\n // that was generated by `Test#async`\n if (this.isAsync) {\n if (!isPromiseLike(result)) {\n result = this.async().promise;\n } else {\n // If the user called this.async and returned a\n // thenable, wait for the first one to resolve or\n // reject.\n result = Task.race([this.async().promise, result]);\n }\n }\n\n if (isPromiseLike(result)) {\n // Even if a user did not call `this.async`, we still mark\n // this test as asynchronous if a promise was returned\n this._isAsync = true;\n\n // Wrap the runTask in another Task so that a canceled test\n // can be treated like a skip.\n return new Task((resolve, reject) => {\n this._runTask = new Task(\n (resolve, reject) => {\n let settled = false;\n\n if (isPromiseLike(result)) {\n result.then(\n () => {\n settled = true;\n resolve();\n },\n error => {\n settled = true;\n reject(error);\n }\n );\n }\n\n // Most promise implementations that allow\n // cancellation don't signal that a promise was\n // canceled. In order to ensure that a timed out\n // test is never accidentally resolved, reject a\n // canceled test, treating it as a skipped test.\n if (isTask(result)) {\n result\n // Reject with SKIP in case we got here\n // before the promise resolved\n .finally(() => {\n if (!settled) {\n this.skipped = 'Canceled';\n reject(SKIP);\n }\n })\n // If the result rejected, consume the\n // error; it's handled above\n .catch(_error => {});\n }\n },\n () => {\n // Only cancel the result if it's actually a\n // Task\n if (isTask(result)) {\n result.cancel();\n }\n // If the test task was canceled between the\n // time it failed and the time it resolved,\n // reject it\n if (this.error) {\n reject(this.error);\n }\n }\n ).then(() => {\n resolve();\n }, reject);\n\n this.restartTimeout();\n });\n }\n })\n .finally(() => {\n // If we got here but the test task hasn't finished, the test\n // was canceled\n if (this._runTask) {\n this._runTask.cancel();\n }\n\n this._runTask = undefined;\n this._timeElapsed = Date.now() - startTime;\n\n // Ensure the timeout timer is cleared so the testing process\n // doesn't hang at exit\n if (this._timer) {\n clearTimeout(this._timer);\n this._timer = undefined;\n }\n })\n .then(() => {\n // Test completed successfully -- potentially passed\n if (this._usesRemote && !this.isAsync) {\n throw new Error(\n 'Remote used in synchronous test! Tests using this.remote must ' +\n 'return a promise or resolve a this.async deferred.'\n );\n }\n this._hasPassed = true;\n })\n .catch(error => {\n // There was an error running the test; could be a skip, could\n // be an assertion failure\n if (error !== SKIP) {\n this.error = error;\n throw error;\n }\n })\n .finally(() => this.executor.emit('testEnd', this));\n }\n\n /**\n * Skips this test.\n *\n * Calling this function will cause a test to halt immediately. If a message\n * was provided, a reporter may report the test as skipped. Skipped tests\n * are not treated as passing or failing.\n *\n * @param message If provided, will be stored in this test's `skipped`\n * property.\n */\n skip(message: string = 'skipped') {\n this.skipped = message;\n throw SKIP;\n }\n\n /**\n * Return a JSON-representation of this test\n */\n toJSON() {\n const json: { [key: string]: any } = {};\n const properties: (keyof Test)[] = [\n 'id',\n 'parentId',\n 'name',\n 'sessionId',\n 'timeElapsed',\n 'timeout',\n 'hasPassed',\n 'skipped'\n ];\n\n properties.forEach(key => {\n const value = this[key];\n if (typeof value !== 'undefined') {\n json[key] = value;\n }\n });\n\n if (this.error) {\n json.error = {\n name: this.error.name,\n message: this.error.message,\n stack: this.error.stack,\n showDiff: Boolean(this.error.showDiff)\n };\n\n if (this.error.showDiff) {\n json.error.actual = this.error.actual;\n json.error.expected = this.error.expected;\n }\n }\n\n return json;\n }\n}\n\nexport function isTest(value: any): value is Test {\n return (\n value != null &&\n typeof value.test === 'function' &&\n typeof value.hasPassed === 'boolean'\n );\n}\n\nexport function isTestOptions(value: any): value is TestOptions {\n return (\n value != null &&\n !(value instanceof Test) &&\n value.name != null &&\n value.test != null\n );\n}\n\nexport interface TestFunction {\n (this: Test, test: Test): void | PromiseLike<any>;\n}\n\nexport function isTestFunction(value: any): value is TestFunction {\n return typeof value === 'function';\n}\n\nexport interface TestProperties {\n hasPassed: boolean;\n name: string;\n parent: Suite;\n skipped: string | undefined;\n test: TestFunction;\n timeout: number;\n}\n\nexport type TestOptions = Partial<TestProperties> & {\n name: string;\n test: TestFunction;\n};\n\nexport const SKIP: any = {};\n"]} |