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// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Stripped-down version of test/mjsunit/mjsunit.js that only contains
// assertEquals.S
var assertEquals;
(function () {
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 BigIntPrototypeValueOf;
try {
BigIntPrototypeValueOf = BigInt.prototype.valueOf;
} catch(e) {}
function classOf(object) {
var string = ObjectPrototypeToString.call(object);
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;
}
}
function PrettyPrint(value) {
switch (typeof value) {
case "string":
return JSON.stringify(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 + "(" + PrettyPrint(ValueOf(value)) + ")";
case "RegExp":
return RegExpPrototypeToString.call(value);
case "Array":
var mapped = ArrayPrototypeMap.call(value, PrettyPrintArrayElement);
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 + "()";
}
var name = value.constructor.name;
if (name) return name + "()";
return "Object()";
default:
return "-- unknown value --";
}
}
function PrettyPrintArrayElement(value, index, array) {
if (value === undefined && !(index in array)) return "";
return PrettyPrint(value);
}
failWithMessage = function failWithMessage(message) {
throw new Error(message);
}
function formatFailureText(expectedText, found, name_opt) {
var message = "Fail" + "ure";
if (name_opt) {
message += " (" + name_opt + ")";
}
var foundText = PrettyPrint(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;
}
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);
}
assertEquals = function assertEquals(expected, found, name_opt) {
if (!deepEquals(found, expected)) {
fail(PrettyPrint(expected), found, name_opt);
}
};
})();
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