|  | // Copyright 2008 the V8 project authors. All rights reserved. | 
|  | // Redistribution and use in source and binary forms, with or without | 
|  | // modification, are permitted provided that the following conditions are | 
|  | // met: | 
|  | // | 
|  | //     * Redistributions of source code must retain the above copyright | 
|  | //       notice, this list of conditions and the following disclaimer. | 
|  | //     * 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. | 
|  | //     * Neither the name of Google Inc. nor the names of its | 
|  | //       contributors may be used to endorse or promote products derived | 
|  | //       from this software without specific prior written permission. | 
|  | // | 
|  | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT | 
|  | // OWNER OR 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. | 
|  |  | 
|  | function MjsUnitAssertionError(message) { | 
|  | this.message = message; | 
|  | // Temporarily install a custom stack trace formatter and restore the | 
|  | // previous value. | 
|  | let prevPrepareStackTrace = Error.prepareStackTrace; | 
|  | try { | 
|  | Error.prepareStackTrace = MjsUnitAssertionError.prepareStackTrace; | 
|  | // This allows fetching the stack trace using TryCatch::StackTrace. | 
|  | this.stack = new Error("MjsUnitAssertionError").stack; | 
|  | } finally { | 
|  | Error.prepareStackTrace = prevPrepareStackTrace; | 
|  | } | 
|  | } | 
|  |  | 
|  | /* | 
|  | * This file is included in all mini jsunit test cases.  The test | 
|  | * framework expects lines that signal failed tests to start with | 
|  | * the f-word and ignore all other lines. | 
|  | */ | 
|  |  | 
|  | MjsUnitAssertionError.prototype.toString = function () { | 
|  | return this.message + "\n\nStack: " + this.stack; | 
|  | }; | 
|  |  | 
|  |  | 
|  | // Expected and found values the same objects, or the same primitive | 
|  | // values. | 
|  | // For known primitive values, please use assertEquals. | 
|  | var assertSame; | 
|  |  | 
|  | // Inverse of assertSame. | 
|  | var assertNotSame; | 
|  |  | 
|  | // Expected and found values are identical primitive values or functions | 
|  | // or similarly structured objects (checking internal properties | 
|  | // of, e.g., Number and Date objects, the elements of arrays | 
|  | // and the properties of non-Array objects). | 
|  | var assertEquals; | 
|  |  | 
|  | // Deep equality predicate used by assertEquals. | 
|  | var deepEquals; | 
|  |  | 
|  | // Expected and found values are not identical primitive values or functions | 
|  | // or similarly structured objects (checking internal properties | 
|  | // of, e.g., Number and Date objects, the elements of arrays | 
|  | // and the properties of non-Array objects). | 
|  | var assertNotEquals; | 
|  |  | 
|  | // The difference between expected and found value is within certain tolerance. | 
|  | var assertEqualsDelta; | 
|  |  | 
|  | // The found object is an Array with the same length and elements | 
|  | // as the expected object. The expected object doesn't need to be an Array, | 
|  | // as long as it's "array-ish". | 
|  | var assertArrayEquals; | 
|  |  | 
|  | // The found object must have the same enumerable properties as the | 
|  | // expected object. The type of object isn't checked. | 
|  | var assertPropertiesEqual; | 
|  |  | 
|  | // Assert that the string conversion of the found value is equal to | 
|  | // the expected string. Only kept for backwards compatibility, please | 
|  | // check the real structure of the found value. | 
|  | var assertToStringEquals; | 
|  |  | 
|  | // Checks that the found value is true. Use with boolean expressions | 
|  | // for tests that doesn't have their own assertXXX function. | 
|  | var assertTrue; | 
|  |  | 
|  | // Checks that the found value is false. | 
|  | var assertFalse; | 
|  |  | 
|  | // Checks that the found value is null. Kept for historical compatibility, | 
|  | // please just use assertEquals(null, expected). | 
|  | var assertNull; | 
|  |  | 
|  | // Checks that the found value is *not* null. | 
|  | var assertNotNull; | 
|  |  | 
|  | // Assert that the passed function or eval code throws an exception. | 
|  | // The optional second argument is an exception constructor that the | 
|  | // thrown exception is checked against with "instanceof". | 
|  | // The optional third argument is a message type string or RegExp object that is | 
|  | // compared to the message of the thrown exception. | 
|  | var assertThrows; | 
|  |  | 
|  | // Assert that the passed function throws an exception. | 
|  | // The exception is checked against the second argument using assertEquals. | 
|  | var assertThrowsEquals; | 
|  |  | 
|  | // Assert that the passed promise does not resolve, but eventually throws an | 
|  | // exception. The optional second argument is an exception constructor that the | 
|  | // thrown exception is checked against with "instanceof". | 
|  | // The optional third argument is a message type string or RegExp object that is | 
|  | // compared to the message of the thrown exception. | 
|  | var assertThrowsAsync; | 
|  |  | 
|  | // Assert that the passed function or eval code does not throw an exception. | 
|  | var assertDoesNotThrow; | 
|  |  | 
|  | // Asserts that the found value is an instance of the constructor passed | 
|  | // as the second argument. | 
|  | var assertInstanceof; | 
|  |  | 
|  | // Assert that this code is never executed (i.e., always fails if executed). | 
|  | var assertUnreachable; | 
|  |  | 
|  | // Assert that the function code is (not) optimized.  If "no sync" is passed | 
|  | // as second argument, we do not wait for the concurrent optimization thread to | 
|  | // finish when polling for optimization status. | 
|  | // Only works with --allow-natives-syntax. | 
|  | var assertOptimized; | 
|  | var assertUnoptimized; | 
|  |  | 
|  | // Assert that a string contains another expected substring. | 
|  | var assertContains; | 
|  |  | 
|  | // Assert that a string matches a given regex. | 
|  | var assertMatches; | 
|  |  | 
|  | // Assert that a promise resolves or rejects. | 
|  | // Parameters: | 
|  | // {promise} - the promise | 
|  | // {success} - optional - a callback which is called with the result of the | 
|  | //             resolving promise. | 
|  | //  {fail} -   optional - a callback which is called with the result of the | 
|  | //             rejecting promise. If the promise is rejected but no {fail} | 
|  | //             callback is set, the error is propagated out of the promise | 
|  | //             chain. | 
|  | var assertPromiseResult; | 
|  |  | 
|  | var promiseTestChain; | 
|  | var promiseTestCount = 0; | 
|  |  | 
|  | // These bits must be in sync with bits defined in Runtime_GetOptimizationStatus | 
|  | var V8OptimizationStatus = { | 
|  | kIsFunction: 1 << 0, | 
|  | kNeverOptimize: 1 << 1, | 
|  | kAlwaysOptimize: 1 << 2, | 
|  | kMaybeDeopted: 1 << 3, | 
|  | kOptimized: 1 << 4, | 
|  | kTurboFanned: 1 << 5, | 
|  | kInterpreted: 1 << 6, | 
|  | kMarkedForOptimization: 1 << 7, | 
|  | kMarkedForConcurrentOptimization: 1 << 8, | 
|  | kOptimizingConcurrently: 1 << 9, | 
|  | kIsExecuting: 1 << 10, | 
|  | kTopmostFrameIsTurboFanned: 1 << 11, | 
|  | kLiteMode: 1 << 12, | 
|  | kMarkedForDeoptimization: 1 << 13, | 
|  | }; | 
|  |  | 
|  | // Returns true if --lite-mode is on and we can't ever turn on optimization. | 
|  | var isNeverOptimizeLiteMode; | 
|  |  | 
|  | // Returns true if --no-opt mode is on. | 
|  | var isNeverOptimize; | 
|  |  | 
|  | // Returns true if --always-opt mode is on. | 
|  | var isAlwaysOptimize; | 
|  |  | 
|  | // Returns true if given function in interpreted. | 
|  | var isInterpreted; | 
|  |  | 
|  | // Returns true if given function is optimized. | 
|  | var isOptimized; | 
|  |  | 
|  | // Returns true if given function is compiled by TurboFan. | 
|  | var isTurboFanned; | 
|  |  | 
|  | // Monkey-patchable all-purpose failure handler. | 
|  | var failWithMessage; | 
|  |  | 
|  | // Returns the formatted failure text.  Used by test-async.js. | 
|  | var formatFailureText; | 
|  |  | 
|  | // Returns a pretty-printed string representation of the passed value. | 
|  | var prettyPrinted; | 
|  |  | 
|  | (function () {  // Scope for utility functions. | 
|  |  | 
|  | var ObjectPrototypeToString = Object.prototype.toString; | 
|  | var NumberPrototypeValueOf = Number.prototype.valueOf; | 
|  | var BooleanPrototypeValueOf = Boolean.prototype.valueOf; | 
|  | var StringPrototypeValueOf = String.prototype.valueOf; | 
|  | var DatePrototypeValueOf = Date.prototype.valueOf; | 
|  | var RegExpPrototypeToString = RegExp.prototype.toString; | 
|  | var ArrayPrototypeForEach = Array.prototype.forEach; | 
|  | var ArrayPrototypeJoin = Array.prototype.join; | 
|  | var ArrayPrototypeMap = Array.prototype.map; | 
|  | var ArrayPrototypePush = Array.prototype.push; | 
|  | var JSONStringify = JSON.stringify; | 
|  |  | 
|  | var BigIntPrototypeValueOf; | 
|  | // TODO(neis): Remove try-catch once BigInts are enabled by default. | 
|  | try { | 
|  | BigIntPrototypeValueOf = BigInt.prototype.valueOf; | 
|  | } catch (e) {} | 
|  |  | 
|  | function classOf(object) { | 
|  | // Argument must not be null or undefined. | 
|  | var string = ObjectPrototypeToString.call(object); | 
|  | // String has format [object <ClassName>]. | 
|  | return string.substring(8, string.length - 1); | 
|  | } | 
|  |  | 
|  |  | 
|  | function ValueOf(value) { | 
|  | switch (classOf(value)) { | 
|  | case "Number": | 
|  | return NumberPrototypeValueOf.call(value); | 
|  | case "BigInt": | 
|  | return BigIntPrototypeValueOf.call(value); | 
|  | case "String": | 
|  | return StringPrototypeValueOf.call(value); | 
|  | case "Boolean": | 
|  | return BooleanPrototypeValueOf.call(value); | 
|  | case "Date": | 
|  | return DatePrototypeValueOf.call(value); | 
|  | default: | 
|  | return value; | 
|  | } | 
|  | } | 
|  |  | 
|  |  | 
|  | prettyPrinted = function prettyPrinted(value) { | 
|  | switch (typeof value) { | 
|  | case "string": | 
|  | return JSONStringify(value); | 
|  | case "bigint": | 
|  | return String(value) + "n"; | 
|  | case "number": | 
|  | if (value === 0 && (1 / value) < 0) return "-0"; | 
|  | // FALLTHROUGH. | 
|  | case "boolean": | 
|  | case "undefined": | 
|  | case "function": | 
|  | case "symbol": | 
|  | return String(value); | 
|  | case "object": | 
|  | if (value === null) return "null"; | 
|  | var objectClass = classOf(value); | 
|  | switch (objectClass) { | 
|  | case "Number": | 
|  | case "BigInt": | 
|  | case "String": | 
|  | case "Boolean": | 
|  | case "Date": | 
|  | return objectClass + "(" + prettyPrinted(ValueOf(value)) + ")"; | 
|  | case "RegExp": | 
|  | return RegExpPrototypeToString.call(value); | 
|  | case "Array": | 
|  | var mapped = ArrayPrototypeMap.call( | 
|  | value, prettyPrintedArrayElement); | 
|  | var joined = ArrayPrototypeJoin.call(mapped, ","); | 
|  | return "[" + joined + "]"; | 
|  | case "Uint8Array": | 
|  | case "Int8Array": | 
|  | case "Int16Array": | 
|  | case "Uint16Array": | 
|  | case "Uint32Array": | 
|  | case "Int32Array": | 
|  | case "Float32Array": | 
|  | case "Float64Array": | 
|  | var joined = ArrayPrototypeJoin.call(value, ","); | 
|  | return objectClass + "([" + joined + "])"; | 
|  | case "Object": | 
|  | break; | 
|  | default: | 
|  | return objectClass + "(" + String(value) + ")"; | 
|  | } | 
|  | // classOf() returned "Object". | 
|  | var name = value.constructor.name; | 
|  | if (name) return name + "()"; | 
|  | return "Object()"; | 
|  | default: | 
|  | return "-- unknown value --"; | 
|  | } | 
|  | } | 
|  |  | 
|  |  | 
|  | function prettyPrintedArrayElement(value, index, array) { | 
|  | if (value === undefined && !(index in array)) return ""; | 
|  | return prettyPrinted(value); | 
|  | } | 
|  |  | 
|  |  | 
|  | failWithMessage = function failWithMessage(message) { | 
|  | throw new MjsUnitAssertionError(message); | 
|  | } | 
|  |  | 
|  | formatFailureText = function(expectedText, found, name_opt) { | 
|  | var message = "Fail" + "ure"; | 
|  | if (name_opt) { | 
|  | // Fix this when we ditch the old test runner. | 
|  | message += " (" + name_opt + ")"; | 
|  | } | 
|  |  | 
|  | var foundText = prettyPrinted(found); | 
|  | if (expectedText.length <= 40 && foundText.length <= 40) { | 
|  | message += ": expected <" + expectedText + "> found <" + foundText + ">"; | 
|  | } else { | 
|  | message += ":\nexpected:\n" + expectedText + "\nfound:\n" + foundText; | 
|  | } | 
|  | return message; | 
|  | } | 
|  |  | 
|  | function fail(expectedText, found, name_opt) { | 
|  | return failWithMessage(formatFailureText(expectedText, found, name_opt)); | 
|  | } | 
|  |  | 
|  |  | 
|  | function deepObjectEquals(a, b) { | 
|  | var aProps = Object.keys(a); | 
|  | aProps.sort(); | 
|  | var bProps = Object.keys(b); | 
|  | bProps.sort(); | 
|  | if (!deepEquals(aProps, bProps)) { | 
|  | return false; | 
|  | } | 
|  | for (var i = 0; i < aProps.length; i++) { | 
|  | if (!deepEquals(a[aProps[i]], b[aProps[i]])) { | 
|  | return false; | 
|  | } | 
|  | } | 
|  | return true; | 
|  | } | 
|  |  | 
|  |  | 
|  | deepEquals = function deepEquals(a, b) { | 
|  | if (a === b) { | 
|  | // Check for -0. | 
|  | if (a === 0) return (1 / a) === (1 / b); | 
|  | return true; | 
|  | } | 
|  | if (typeof a !== typeof b) return false; | 
|  | if (typeof a === "number") return isNaN(a) && isNaN(b); | 
|  | if (typeof a !== "object" && typeof a !== "function") return false; | 
|  | // Neither a nor b is primitive. | 
|  | var objectClass = classOf(a); | 
|  | if (objectClass !== classOf(b)) return false; | 
|  | if (objectClass === "RegExp") { | 
|  | // For RegExp, just compare pattern and flags using its toString. | 
|  | return RegExpPrototypeToString.call(a) === | 
|  | RegExpPrototypeToString.call(b); | 
|  | } | 
|  | // Functions are only identical to themselves. | 
|  | if (objectClass === "Function") return false; | 
|  | if (objectClass === "Array") { | 
|  | var elementCount = 0; | 
|  | if (a.length !== b.length) { | 
|  | return false; | 
|  | } | 
|  | for (var i = 0; i < a.length; i++) { | 
|  | if (!deepEquals(a[i], b[i])) return false; | 
|  | } | 
|  | return true; | 
|  | } | 
|  | if (objectClass === "String" || objectClass === "Number" || | 
|  | objectClass === "BigInt" || objectClass === "Boolean" || | 
|  | objectClass === "Date") { | 
|  | if (ValueOf(a) !== ValueOf(b)) return false; | 
|  | } | 
|  | return deepObjectEquals(a, b); | 
|  | } | 
|  |  | 
|  | assertSame = function assertSame(expected, found, name_opt) { | 
|  | if (Object.is(expected, found)) return; | 
|  | fail(prettyPrinted(expected), found, name_opt); | 
|  | }; | 
|  |  | 
|  | assertNotSame = function assertNotSame(expected, found, name_opt) { | 
|  | if (!Object.is(expected, found)) return; | 
|  | fail("not same as " + prettyPrinted(expected), found, name_opt); | 
|  | } | 
|  |  | 
|  | assertEquals = function assertEquals(expected, found, name_opt) { | 
|  | if (!deepEquals(found, expected)) { | 
|  | fail(prettyPrinted(expected), found, name_opt); | 
|  | } | 
|  | }; | 
|  |  | 
|  | assertNotEquals = function assertNotEquals(expected, found, name_opt) { | 
|  | if (deepEquals(found, expected)) { | 
|  | fail("not equals to " + prettyPrinted(expected), found, name_opt); | 
|  | } | 
|  | }; | 
|  |  | 
|  |  | 
|  | assertEqualsDelta = | 
|  | function assertEqualsDelta(expected, found, delta, name_opt) { | 
|  | if (Math.abs(expected - found) > delta) { | 
|  | fail(prettyPrinted(expected) + " +- " + prettyPrinted(delta), found, name_opt); | 
|  | } | 
|  | }; | 
|  |  | 
|  |  | 
|  | assertArrayEquals = function assertArrayEquals(expected, found, name_opt) { | 
|  | var start = ""; | 
|  | if (name_opt) { | 
|  | start = name_opt + " - "; | 
|  | } | 
|  | assertEquals(expected.length, found.length, start + "array length"); | 
|  | if (expected.length === found.length) { | 
|  | for (var i = 0; i < expected.length; ++i) { | 
|  | assertEquals(expected[i], found[i], | 
|  | start + "array element at index " + i); | 
|  | } | 
|  | } | 
|  | }; | 
|  |  | 
|  |  | 
|  | assertPropertiesEqual = function assertPropertiesEqual(expected, found, | 
|  | name_opt) { | 
|  | // Check properties only. | 
|  | if (!deepObjectEquals(expected, found)) { | 
|  | fail(expected, found, name_opt); | 
|  | } | 
|  | }; | 
|  |  | 
|  |  | 
|  | assertToStringEquals = function assertToStringEquals(expected, found, | 
|  | name_opt) { | 
|  | if (expected !== String(found)) { | 
|  | fail(expected, found, name_opt); | 
|  | } | 
|  | }; | 
|  |  | 
|  |  | 
|  | assertTrue = function assertTrue(value, name_opt) { | 
|  | assertEquals(true, value, name_opt); | 
|  | }; | 
|  |  | 
|  |  | 
|  | assertFalse = function assertFalse(value, name_opt) { | 
|  | assertEquals(false, value, name_opt); | 
|  | }; | 
|  |  | 
|  |  | 
|  | assertNull = function assertNull(value, name_opt) { | 
|  | if (value !== null) { | 
|  | fail("null", value, name_opt); | 
|  | } | 
|  | }; | 
|  |  | 
|  |  | 
|  | assertNotNull = function assertNotNull(value, name_opt) { | 
|  | if (value === null) { | 
|  | fail("not null", value, name_opt); | 
|  | } | 
|  | }; | 
|  |  | 
|  | function executeCode(code) { | 
|  | if (typeof code === 'function')  return code(); | 
|  | if (typeof code === 'string') return eval(code); | 
|  | failWithMessage( | 
|  | 'Given code is neither function nor string, but ' + (typeof code) + | 
|  | ': <' + prettyPrinted(code) + '>'); | 
|  | } | 
|  |  | 
|  | function checkException(e, type_opt, cause_opt) { | 
|  | if (type_opt !== undefined) { | 
|  | assertEquals('function', typeof type_opt); | 
|  | assertInstanceof(e, type_opt); | 
|  | } | 
|  | if (RegExp !== undefined && cause_opt instanceof RegExp) { | 
|  | assertMatches(cause_opt, e.message, 'Error message'); | 
|  | } else if (cause_opt !== undefined) { | 
|  | assertEquals(cause_opt, e.message, 'Error message'); | 
|  | } | 
|  | } | 
|  |  | 
|  | assertThrows = function assertThrows(code, type_opt, cause_opt) { | 
|  | if (arguments.length > 1 && type_opt === undefined) { | 
|  | failWithMessage('invalid use of assertThrows, unknown type_opt given'); | 
|  | } | 
|  | if (type_opt !== undefined && typeof type_opt !== 'function') { | 
|  | failWithMessage( | 
|  | 'invalid use of assertThrows, maybe you want assertThrowsEquals'); | 
|  | } | 
|  | try { | 
|  | executeCode(code); | 
|  | } catch (e) { | 
|  | checkException(e, type_opt, cause_opt); | 
|  | return; | 
|  | } | 
|  | let msg = 'Did not throw exception'; | 
|  | if (type_opt !== undefined && type_opt.name !== undefined) | 
|  | msg += ', expected ' + type_opt.name; | 
|  | failWithMessage(msg); | 
|  | }; | 
|  |  | 
|  | assertThrowsEquals = function assertThrowsEquals(fun, val) { | 
|  | try { | 
|  | fun(); | 
|  | } catch (e) { | 
|  | assertSame(val, e); | 
|  | return; | 
|  | } | 
|  | failWithMessage('Did not throw exception, expected ' + prettyPrinted(val)); | 
|  | }; | 
|  |  | 
|  | assertThrowsAsync = function assertThrowsAsync(promise, type_opt, cause_opt) { | 
|  | if (arguments.length > 1 && type_opt === undefined) { | 
|  | failWithMessage('invalid use of assertThrows, unknown type_opt given'); | 
|  | } | 
|  | if (type_opt !== undefined && typeof type_opt !== 'function') { | 
|  | failWithMessage( | 
|  | 'invalid use of assertThrows, maybe you want assertThrowsEquals'); | 
|  | } | 
|  | let msg = 'Promise did not throw exception'; | 
|  | if (type_opt !== undefined && type_opt.name !== undefined) | 
|  | msg += ', expected ' + type_opt.name; | 
|  | return assertPromiseResult( | 
|  | promise, | 
|  | // Use setTimeout to throw the error again to get out of the promise | 
|  | // chain. | 
|  | res => setTimeout(_ => fail('<throw>', res, msg), 0), | 
|  | e => checkException(e, type_opt, cause_opt)); | 
|  | }; | 
|  |  | 
|  | assertInstanceof = function assertInstanceof(obj, type) { | 
|  | if (!(obj instanceof type)) { | 
|  | var actualTypeName = null; | 
|  | var actualConstructor = obj && Object.getPrototypeOf(obj).constructor; | 
|  | if (typeof actualConstructor === 'function') { | 
|  | actualTypeName = actualConstructor.name || String(actualConstructor); | 
|  | } | 
|  | failWithMessage( | 
|  | 'Object <' + prettyPrinted(obj) + '> is not an instance of <' + | 
|  | (type.name || type) + '>' + | 
|  | (actualTypeName ? ' but of <' + actualTypeName + '>' : '')); | 
|  | } | 
|  | }; | 
|  |  | 
|  | assertDoesNotThrow = function assertDoesNotThrow(code, name_opt) { | 
|  | try { | 
|  | executeCode(code); | 
|  | } catch (e) { | 
|  | if (e instanceof MjsUnitAssertionError) throw e; | 
|  | failWithMessage("threw an exception: " + (e.message || e)); | 
|  | } | 
|  | }; | 
|  |  | 
|  | assertUnreachable = function assertUnreachable(name_opt) { | 
|  | // Fix this when we ditch the old test runner. | 
|  | var message = "Fail" + "ure: unreachable"; | 
|  | if (name_opt) { | 
|  | message += " - " + name_opt; | 
|  | } | 
|  | failWithMessage(message); | 
|  | }; | 
|  |  | 
|  | assertContains = function(sub, value, name_opt) { | 
|  | if (value == null ? (sub != null) : value.indexOf(sub) == -1) { | 
|  | fail("contains '" + String(sub) + "'", value, name_opt); | 
|  | } | 
|  | }; | 
|  |  | 
|  | assertMatches = function(regexp, str, name_opt) { | 
|  | if (!(regexp instanceof RegExp)) { | 
|  | regexp = new RegExp(regexp); | 
|  | } | 
|  | if (!str.match(regexp)) { | 
|  | fail("should match '" + regexp + "'", str, name_opt); | 
|  | } | 
|  | }; | 
|  |  | 
|  | function concatenateErrors(stack, exception) { | 
|  | // If the exception does not contain a stack trace, wrap it in a new Error. | 
|  | if (!exception.stack) exception = new Error(exception); | 
|  |  | 
|  | // If the exception already provides a special stack trace, we do not modify | 
|  | // it. | 
|  | if (typeof exception.stack !== 'string') { | 
|  | return exception; | 
|  | } | 
|  | exception.stack = stack + '\n\n' + exception.stack; | 
|  | return exception; | 
|  | } | 
|  |  | 
|  | assertPromiseResult = function(promise, success, fail) { | 
|  | if (success !== undefined) assertEquals('function', typeof success); | 
|  | if (fail !== undefined) assertEquals('function', typeof fail); | 
|  | assertInstanceof(promise, Promise); | 
|  | const stack = (new Error()).stack; | 
|  |  | 
|  | var test_promise = promise.then( | 
|  | result => { | 
|  | try { | 
|  | if (--promiseTestCount == 0) testRunner.notifyDone(); | 
|  | if (success !== undefined) success(result); | 
|  | } catch (e) { | 
|  | // Use setTimeout to throw the error again to get out of the promise | 
|  | // chain. | 
|  | setTimeout(_ => { | 
|  | throw concatenateErrors(stack, e); | 
|  | }, 0); | 
|  | } | 
|  | }, | 
|  | result => { | 
|  | try { | 
|  | if (--promiseTestCount == 0) testRunner.notifyDone(); | 
|  | if (fail === undefined) throw result; | 
|  | fail(result); | 
|  | } catch (e) { | 
|  | // Use setTimeout to throw the error again to get out of the promise | 
|  | // chain. | 
|  | setTimeout(_ => { | 
|  | throw concatenateErrors(stack, e); | 
|  | }, 0); | 
|  | } | 
|  | }); | 
|  |  | 
|  | if (!promiseTestChain) promiseTestChain = Promise.resolve(); | 
|  | // waitUntilDone is idempotent. | 
|  | testRunner.waitUntilDone(); | 
|  | ++promiseTestCount; | 
|  | return promiseTestChain.then(test_promise); | 
|  | }; | 
|  |  | 
|  | var OptimizationStatusImpl = undefined; | 
|  |  | 
|  | var OptimizationStatus = function(fun, sync_opt) { | 
|  | if (OptimizationStatusImpl === undefined) { | 
|  | try { | 
|  | OptimizationStatusImpl = new Function( | 
|  | "fun", "sync", "return %GetOptimizationStatus(fun, sync);"); | 
|  | } catch (e) { | 
|  | throw new Error("natives syntax not allowed"); | 
|  | } | 
|  | } | 
|  | return OptimizationStatusImpl(fun, sync_opt); | 
|  | } | 
|  |  | 
|  | assertUnoptimized = function assertUnoptimized( | 
|  | fun, sync_opt, name_opt, skip_if_maybe_deopted = true) { | 
|  | if (sync_opt === undefined) sync_opt = ""; | 
|  | var opt_status = OptimizationStatus(fun, sync_opt); | 
|  | // Tests that use assertUnoptimized() do not make sense if --always-opt | 
|  | // option is provided. Such tests must add --no-always-opt to flags comment. | 
|  | assertFalse((opt_status & V8OptimizationStatus.kAlwaysOptimize) !== 0, | 
|  | "test does not make sense with --always-opt"); | 
|  | assertTrue((opt_status & V8OptimizationStatus.kIsFunction) !== 0, name_opt); | 
|  | if (skip_if_maybe_deopted && | 
|  | (opt_status & V8OptimizationStatus.kMaybeDeopted) !== 0) { | 
|  | // When --deopt-every-n-times flag is specified it's no longer guaranteed | 
|  | // that particular function is still deoptimized, so keep running the test | 
|  | // to stress test the deoptimizer. | 
|  | return; | 
|  | } | 
|  | assertFalse((opt_status & V8OptimizationStatus.kOptimized) !== 0, name_opt); | 
|  | } | 
|  |  | 
|  | assertOptimized = function assertOptimized( | 
|  | fun, sync_opt, name_opt, skip_if_maybe_deopted = true) { | 
|  | if (sync_opt === undefined) sync_opt = ""; | 
|  | var opt_status = OptimizationStatus(fun, sync_opt); | 
|  | // Tests that use assertOptimized() do not make sense for Lite mode where | 
|  | // optimization is always disabled, explicitly exit the test with a warning. | 
|  | if (opt_status & V8OptimizationStatus.kLiteMode) { | 
|  | print("Warning: Test uses assertOptimized in Lite mode, skipping test."); | 
|  | testRunner.quit(0); | 
|  | } | 
|  | // Tests that use assertOptimized() do not make sense if --no-opt | 
|  | // option is provided. Such tests must add --opt to flags comment. | 
|  | assertFalse((opt_status & V8OptimizationStatus.kNeverOptimize) !== 0, | 
|  | "test does not make sense with --no-opt"); | 
|  | assertTrue( | 
|  | (opt_status & V8OptimizationStatus.kIsFunction) !== 0, | 
|  | 'should be a function: ' + name_opt); | 
|  | if (skip_if_maybe_deopted && | 
|  | (opt_status & V8OptimizationStatus.kMaybeDeopted) !== 0) { | 
|  | // When --deopt-every-n-times flag is specified it's no longer guaranteed | 
|  | // that particular function is still optimized, so keep running the test | 
|  | // to stress test the deoptimizer. | 
|  | return; | 
|  | } | 
|  | assertTrue( | 
|  | (opt_status & V8OptimizationStatus.kOptimized) !== 0, | 
|  | 'should be optimized: ' + name_opt); | 
|  | } | 
|  |  | 
|  | isNeverOptimizeLiteMode = function isNeverOptimizeLiteMode() { | 
|  | var opt_status = OptimizationStatus(undefined, ""); | 
|  | return (opt_status & V8OptimizationStatus.kLiteMode) !== 0; | 
|  | } | 
|  |  | 
|  | isNeverOptimize = function isNeverOptimize() { | 
|  | var opt_status = OptimizationStatus(undefined, ""); | 
|  | return (opt_status & V8OptimizationStatus.kNeverOptimize) !== 0; | 
|  | } | 
|  |  | 
|  | isAlwaysOptimize = function isAlwaysOptimize() { | 
|  | var opt_status = OptimizationStatus(undefined, ""); | 
|  | return (opt_status & V8OptimizationStatus.kAlwaysOptimize) !== 0; | 
|  | } | 
|  |  | 
|  | isInterpreted = function isInterpreted(fun) { | 
|  | var opt_status = OptimizationStatus(fun, ""); | 
|  | assertTrue((opt_status & V8OptimizationStatus.kIsFunction) !== 0, | 
|  | "not a function"); | 
|  | return (opt_status & V8OptimizationStatus.kOptimized) === 0 && | 
|  | (opt_status & V8OptimizationStatus.kInterpreted) !== 0; | 
|  | } | 
|  |  | 
|  | isOptimized = function isOptimized(fun) { | 
|  | var opt_status = OptimizationStatus(fun, ""); | 
|  | assertTrue((opt_status & V8OptimizationStatus.kIsFunction) !== 0, | 
|  | "not a function"); | 
|  | return (opt_status & V8OptimizationStatus.kOptimized) !== 0; | 
|  | } | 
|  |  | 
|  | isTurboFanned = function isTurboFanned(fun) { | 
|  | var opt_status = OptimizationStatus(fun, ""); | 
|  | assertTrue((opt_status & V8OptimizationStatus.kIsFunction) !== 0, | 
|  | "not a function"); | 
|  | return (opt_status & V8OptimizationStatus.kOptimized) !== 0 && | 
|  | (opt_status & V8OptimizationStatus.kTurboFanned) !== 0; | 
|  | } | 
|  |  | 
|  | // Custom V8-specific stack trace formatter that is temporarily installed on | 
|  | // the Error object. | 
|  | MjsUnitAssertionError.prepareStackTrace = function(error, stack) { | 
|  | // Trigger default formatting with recursion. | 
|  | try { | 
|  | // Filter-out all but the first mjsunit frame. | 
|  | let filteredStack = []; | 
|  | let inMjsunit = true; | 
|  | for (let i = 0; i < stack.length; i++) { | 
|  | let frame = stack[i]; | 
|  | if (inMjsunit) { | 
|  | let file = frame.getFileName(); | 
|  | if (!file || !file.endsWith("mjsunit.js")) { | 
|  | inMjsunit = false; | 
|  | // Push the last mjsunit frame, typically containing the assertion | 
|  | // function. | 
|  | if (i > 0) ArrayPrototypePush.call(filteredStack, stack[i-1]); | 
|  | ArrayPrototypePush.call(filteredStack, stack[i]); | 
|  | } | 
|  | continue; | 
|  | } | 
|  | ArrayPrototypePush.call(filteredStack, frame); | 
|  | } | 
|  | stack = filteredStack; | 
|  |  | 
|  | // Infer function names and calculate {max_name_length} | 
|  | let max_name_length = 0; | 
|  | ArrayPrototypeForEach.call(stack, each => { | 
|  | let name = each.getFunctionName(); | 
|  | if (name == null) name = ""; | 
|  | if (each.isEval()) { | 
|  | name = name; | 
|  | } else if (each.isConstructor()) { | 
|  | name = "new " + name; | 
|  | } else if (each.isNative()) { | 
|  | name = "native " + name; | 
|  | } else if (!each.isToplevel()) { | 
|  | name = each.getTypeName() + "." + name; | 
|  | } | 
|  | each.name = name; | 
|  | max_name_length = Math.max(name.length, max_name_length) | 
|  | }); | 
|  |  | 
|  | // Format stack frames. | 
|  | stack = ArrayPrototypeMap.call(stack, each => { | 
|  | let frame = "    at " + each.name.padEnd(max_name_length); | 
|  | let fileName = each.getFileName(); | 
|  | if (each.isEval()) return frame + " " + each.getEvalOrigin(); | 
|  | frame += " " + (fileName ? fileName : ""); | 
|  | let line= each.getLineNumber(); | 
|  | frame += " " + (line ? line : ""); | 
|  | let column = each.getColumnNumber(); | 
|  | frame += (column ? ":" + column : ""); | 
|  | return frame; | 
|  | }); | 
|  | return "" + error.message + "\n" + ArrayPrototypeJoin.call(stack, "\n"); | 
|  | } catch (e) {}; | 
|  | return error.stack; | 
|  | } | 
|  | })(); |