| /* |
| * Copyright (C) 2015-2017 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| TestHarness = class TestHarness extends WI.Object |
| { |
| constructor() |
| { |
| super(); |
| |
| this._logCount = 0; |
| this._failureObjects = new Map; |
| this._failureObjectIdentifier = 1; |
| |
| // Options that are set per-test for debugging purposes. |
| this.forceDebugLogging = false; |
| |
| // Options that are set per-test to ensure deterministic output. |
| this.suppressStackTraces = false; |
| } |
| |
| completeTest() |
| { |
| throw new Error("Must be implemented by subclasses."); |
| } |
| |
| addResult() |
| { |
| throw new Error("Must be implemented by subclasses."); |
| } |
| |
| debugLog() |
| { |
| throw new Error("Must be implemented by subclasses."); |
| } |
| |
| // If 'callback' is a function, it will be with the arguments |
| // callback(error, result, wasThrown). Otherwise, a promise is |
| // returned that resolves with 'result' or rejects with 'error'. |
| |
| // The options object accepts the following keys and values: |
| // 'remoteObjectOnly': if true, do not unwrap the result payload to a |
| // primitive value even if possible. Useful if testing WI.RemoteObject directly. |
| evaluateInPage(string, callback, options={}) |
| { |
| throw new Error("Must be implemented by subclasses."); |
| } |
| |
| debug() |
| { |
| throw new Error("Must be implemented by subclasses."); |
| } |
| |
| createAsyncSuite(name) |
| { |
| return new AsyncTestSuite(this, name); |
| } |
| |
| createSyncSuite(name) |
| { |
| return new SyncTestSuite(this, name); |
| } |
| |
| get logCount() |
| { |
| return this._logCount; |
| } |
| |
| log(message) |
| { |
| ++this._logCount; |
| |
| if (this.forceDebugLogging) |
| this.debugLog(message); |
| else |
| this.addResult(message); |
| } |
| |
| newline() |
| { |
| this.log(""); |
| } |
| |
| json(object, filter) |
| { |
| this.log(JSON.stringify(object, filter || null, 2)); |
| } |
| |
| assert(condition, message) |
| { |
| if (condition) |
| return; |
| |
| let stringifiedMessage = TestHarness.messageAsString(message); |
| this.log("ASSERT: " + stringifiedMessage); |
| } |
| |
| expectThat(actual, message) |
| { |
| this._expect(TestHarness.ExpectationType.True, !!actual, message, actual); |
| } |
| |
| expectTrue(actual, message) |
| { |
| this._expect(TestHarness.ExpectationType.True, !!actual, message, actual); |
| } |
| |
| expectFalse(actual, message) |
| { |
| this._expect(TestHarness.ExpectationType.False, !actual, message, actual); |
| } |
| |
| expectNull(actual, message) |
| { |
| this._expect(TestHarness.ExpectationType.Null, actual === null, message, actual, null); |
| } |
| |
| expectNotNull(actual, message) |
| { |
| this._expect(TestHarness.ExpectationType.NotNull, actual !== null, message, actual); |
| } |
| |
| expectEqual(actual, expected, message) |
| { |
| this._expect(TestHarness.ExpectationType.Equal, expected === actual, message, actual, expected); |
| } |
| |
| expectNotEqual(actual, expected, message) |
| { |
| this._expect(TestHarness.ExpectationType.NotEqual, expected !== actual, message, actual, expected); |
| } |
| |
| expectShallowEqual(actual, expected, message) |
| { |
| this._expect(TestHarness.ExpectationType.ShallowEqual, Object.shallowEqual(actual, expected), message, actual, expected); |
| } |
| |
| expectNotShallowEqual(actual, expected, message) |
| { |
| this._expect(TestHarness.ExpectationType.NotShallowEqual, !Object.shallowEqual(actual, expected), message, actual, expected); |
| } |
| |
| expectEqualWithAccuracy(actual, expected, accuracy, message) |
| { |
| console.assert(typeof expected === "number"); |
| console.assert(typeof actual === "number"); |
| |
| this._expect(TestHarness.ExpectationType.EqualWithAccuracy, Math.abs(expected - actual) <= accuracy, message, actual, expected, accuracy); |
| } |
| |
| expectLessThan(actual, expected, message) |
| { |
| this._expect(TestHarness.ExpectationType.LessThan, actual < expected, message, actual, expected); |
| } |
| |
| expectLessThanOrEqual(actual, expected, message) |
| { |
| this._expect(TestHarness.ExpectationType.LessThanOrEqual, actual <= expected, message, actual, expected); |
| } |
| |
| expectGreaterThan(actual, expected, message) |
| { |
| this._expect(TestHarness.ExpectationType.GreaterThan, actual > expected, message, actual, expected); |
| } |
| |
| expectGreaterThanOrEqual(actual, expected, message) |
| { |
| this._expect(TestHarness.ExpectationType.GreaterThanOrEqual, actual >= expected, message, actual, expected); |
| } |
| |
| pass(message) |
| { |
| let stringifiedMessage = TestHarness.messageAsString(message); |
| this.log("PASS: " + stringifiedMessage); |
| } |
| |
| fail(message) |
| { |
| let stringifiedMessage = TestHarness.messageAsString(message); |
| this.log("FAIL: " + stringifiedMessage); |
| } |
| |
| passOrFail(condition, message) |
| { |
| if (condition) |
| this.pass(message); |
| else |
| this.fail(message); |
| } |
| |
| // Use this to expect an exception. To further examine the exception, |
| // chain onto the result with .then() and add your own test assertions. |
| // The returned promise is rejected if an exception was not thrown. |
| expectException(work) |
| { |
| if (typeof work !== "function") |
| throw new Error("Invalid argument to catchException: work must be a function."); |
| |
| let expectAndDumpError = (e) => { |
| this.expectNotNull(e, "Should produce an exception."); |
| if (!e) |
| return; |
| |
| if (e instanceof Error || !(e instanceof Object)) |
| this.log(e.toString()); |
| else { |
| try { |
| this.json(e); |
| } catch { |
| this.log(e.constructor.name); |
| } |
| } |
| } |
| |
| let error = null; |
| let result = null; |
| try { |
| result = work(); |
| } catch (caughtError) { |
| error = caughtError; |
| } finally { |
| // If 'work' returns a promise, it will settle (resolve or reject) by itself. |
| // Invert the promise's settled state to match the expectation of the caller. |
| if (result instanceof Promise) { |
| return result.then((resolvedValue) => { |
| expectAndDumpError(null); |
| return Promise.reject(resolvedValue); |
| }, (e) => { // Don't chain the .catch as it will log the value we just rejected. |
| expectAndDumpError(e); |
| return Promise.resolve(e); |
| }); |
| } |
| |
| // If a promise is not produced, turn the exception into a resolved promise, and a |
| // resolved value into a rejected value (since an exception was expected). |
| expectAndDumpError(error); |
| return error ? Promise.resolve(error) : Promise.reject(result); |
| } |
| } |
| |
| // Protected |
| |
| static messageAsString(message) |
| { |
| if (message instanceof Element) |
| return message.textContent; |
| |
| return typeof message !== "string" ? JSON.stringify(message) : message; |
| } |
| |
| static sanitizeURL(url) |
| { |
| if (!url) |
| return "(unknown)"; |
| |
| let lastPathSeparator = Math.max(url.lastIndexOf("/"), url.lastIndexOf("\\")); |
| let location = lastPathSeparator > 0 ? url.substr(lastPathSeparator + 1) : url; |
| if (!location.length) |
| location = "(unknown)"; |
| |
| // Clean up the location so it is bracketed or in parenthesis. |
| if (url.indexOf("[native code]") !== -1) |
| location = "[native code]"; |
| |
| return location; |
| } |
| |
| static sanitizeStackFrame(frame, i) |
| { |
| // Most frames are of the form "functionName@file:///foo/bar/File.js:345". |
| // But, some frames do not have a functionName. Get rid of the file path. |
| let nameAndURLSeparator = frame.indexOf("@"); |
| let frameName = nameAndURLSeparator > 0 ? frame.substr(0, nameAndURLSeparator) : "(anonymous)"; |
| |
| let lastPathSeparator = Math.max(frame.lastIndexOf("/"), frame.lastIndexOf("\\")); |
| let frameLocation = lastPathSeparator > 0 ? frame.substr(lastPathSeparator + 1) : frame; |
| if (!frameLocation.length) |
| frameLocation = "unknown"; |
| |
| // Clean up the location so it is bracketed or in parenthesis. |
| if (frame.indexOf("[native code]") !== -1) |
| frameLocation = "[native code]"; |
| else |
| frameLocation = "(" + frameLocation + ")"; |
| |
| return `#${i}: ${frameName} ${frameLocation}`; |
| } |
| |
| sanitizeStack(stack) |
| { |
| if (this.suppressStackTraces) |
| return "(suppressed)"; |
| |
| if (!stack || typeof stack !== "string") |
| return "(unknown)"; |
| |
| return stack.split("\n").map(TestHarness.sanitizeStackFrame).join("\n"); |
| } |
| |
| // Private |
| |
| _expect(type, condition, message, ...values) |
| { |
| console.assert(values.length > 0, "Should have an 'actual' value."); |
| |
| if (!message || !condition) { |
| values = values.map(this._expectationValueAsString.bind(this)); |
| message = message || this._expectationMessageFormat(type).format(...values); |
| } |
| |
| if (condition) { |
| this.pass(message); |
| return; |
| } |
| |
| message += "\n Expected: " + this._expectedValueFormat(type).format(...values.slice(1)); |
| message += "\n Actual: " + values[0]; |
| |
| this.fail(message); |
| } |
| |
| _expectationValueAsString(value) |
| { |
| let instanceIdentifier = (object) => { |
| let id = this._failureObjects.get(object); |
| if (!id) { |
| id = this._failureObjectIdentifier++; |
| this._failureObjects.set(object, id); |
| } |
| return "#" + id; |
| }; |
| |
| const maximumValueStringLength = 200; |
| const defaultValueString = String(new Object); // [object Object] |
| |
| // Special case for numbers, since JSON.stringify converts Infinity and NaN to null. |
| if (typeof value === "number") |
| return value; |
| |
| try { |
| let valueString = JSON.stringify(value); |
| if (valueString.length <= maximumValueStringLength) |
| return valueString; |
| } catch { } |
| |
| try { |
| let valueString = String(value); |
| if (valueString === defaultValueString && value.constructor && value.constructor.name !== "Object") |
| return value.constructor.name + " instance " + instanceIdentifier(value); |
| return valueString; |
| } catch { |
| return defaultValueString; |
| } |
| } |
| |
| _expectationMessageFormat(type) |
| { |
| switch (type) { |
| case TestHarness.ExpectationType.True: |
| return "expectThat(%s)"; |
| case TestHarness.ExpectationType.False: |
| return "expectFalse(%s)"; |
| case TestHarness.ExpectationType.Null: |
| return "expectNull(%s)"; |
| case TestHarness.ExpectationType.NotNull: |
| return "expectNotNull(%s)"; |
| case TestHarness.ExpectationType.Equal: |
| return "expectEqual(%s, %s)"; |
| case TestHarness.ExpectationType.NotEqual: |
| return "expectNotEqual(%s, %s)"; |
| case TestHarness.ExpectationType.ShallowEqual: |
| return "expectShallowEqual(%s, %s)"; |
| case TestHarness.ExpectationType.NotShallowEqual: |
| return "expectNotShallowEqual(%s, %s)"; |
| case TestHarness.ExpectationType.EqualWithAccuracy: |
| return "expectEqualWithAccuracy(%s, %s, %s)"; |
| case TestHarness.ExpectationType.LessThan: |
| return "expectLessThan(%s, %s)"; |
| case TestHarness.ExpectationType.LessThanOrEqual: |
| return "expectLessThanOrEqual(%s, %s)"; |
| case TestHarness.ExpectationType.GreaterThan: |
| return "expectGreaterThan(%s, %s)"; |
| case TestHarness.ExpectationType.GreaterThanOrEqual: |
| return "expectGreaterThanOrEqual(%s, %s)"; |
| default: |
| console.error("Unknown TestHarness.ExpectationType type: " + type); |
| return null; |
| } |
| } |
| |
| _expectedValueFormat(type) |
| { |
| switch (type) { |
| case TestHarness.ExpectationType.True: |
| return "truthy"; |
| case TestHarness.ExpectationType.False: |
| return "falsey"; |
| case TestHarness.ExpectationType.NotNull: |
| return "not null"; |
| case TestHarness.ExpectationType.NotEqual: |
| case TestHarness.ExpectationType.NotShallowEqual: |
| return "not %s"; |
| case TestHarness.ExpectationType.EqualWithAccuracy: |
| return "%s +/- %s"; |
| case TestHarness.ExpectationType.LessThan: |
| return "less than %s"; |
| case TestHarness.ExpectationType.LessThanOrEqual: |
| return "less than or equal to %s"; |
| case TestHarness.ExpectationType.GreaterThan: |
| return "greater than %s"; |
| case TestHarness.ExpectationType.GreaterThanOrEqual: |
| return "greater than or equal to %s"; |
| default: |
| return "%s"; |
| } |
| } |
| }; |
| |
| TestHarness.ExpectationType = { |
| True: Symbol("expect-true"), |
| False: Symbol("expect-false"), |
| Null: Symbol("expect-null"), |
| NotNull: Symbol("expect-not-null"), |
| Equal: Symbol("expect-equal"), |
| NotEqual: Symbol("expect-not-equal"), |
| ShallowEqual: Symbol("expect-shallow-equal"), |
| NotShallowEqual: Symbol("expect-not-shallow-equal"), |
| EqualWithAccuracy: Symbol("expect-equal-with-accuracy"), |
| LessThan: Symbol("expect-less-than"), |
| LessThanOrEqual: Symbol("expect-less-than-or-equal"), |
| GreaterThan: Symbol("expect-greater-than"), |
| GreaterThanOrEqual: Symbol("expect-greater-than-or-equal"), |
| }; |
