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145 lines
7.2 KiB
145 lines
7.2 KiB
// Copyright 2013 the V8 project authors. All rights reserved.
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// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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description(
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"This test checks the behavior of the various array enumeration functions in certain edge case scenarios"
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);
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var functions = ["every", "forEach", "some", "filter", "reduce", "map", "reduceRight"];
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var forwarders = [
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function(elem, index, array) { return currentFunc.call(this, elem, index, array); },
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function(elem, index, array) { return currentFunc.call(this, elem, index, array); },
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function(elem, index, array) { return currentFunc.call(this, elem, index, array); },
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function(elem, index, array) { return currentFunc.call(this, elem, index, array); },
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function(prev, elem, index, array) { return currentFunc.call(this, elem, index, array); },
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function(elem, index, array) { return currentFunc.call(this, elem, index, array); },
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function(prev, elem, index, array) { return currentFunc.call(this, elem, index, array); }
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];
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function toObject(array) {
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var o = {};
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for (var i in array)
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o[i] = array[i];
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o.length = array.length;
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return o;
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}
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function toUnorderedObject(array) {
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var o = {};
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var props = [];
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for (var i in array)
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props.push(i);
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for (var i = props.length - 1; i >= 0; i--)
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o[props[i]] = array[props[i]];
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o.length = array.length;
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return o;
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}
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function returnFalse() { count++; return false; }
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function returnTrue() { count++; return true; }
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function returnElem(elem) { count++; return elem; }
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function returnIndex(a, index) { if (lastIndex >= index) throw "Unordered traversal"; lastIndex = index; count++; return index; }
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function increaseLength(a, b, array) { count++; array.length++; }
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function decreaseLength(a, b, array) { count++; array.length--; }
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function halveLength(a, b, array) { count++; if (!array.halved) array.length = (array.length / 2) | 0; array.halved = true; }
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var testFunctions = ["returnFalse", "returnTrue", "returnElem", "returnIndex", "increaseLength", "decreaseLength", "halveLength"];
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var simpleArray = [0,1,2,3,4,5];
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var emptyArray = [];
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var largeEmptyArray = new Array(300);
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var largeSparseArray = [0,1,2,3,4,5];
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largeSparseArray[299] = 299;
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var arrays = ["simpleArray", "emptyArray", "largeEmptyArray", "largeSparseArray"];
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function copyArray(a) {
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var g = [];
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for (var i in a)
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g[i] = a[i];
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return g;
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}
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// Test object and array behaviour matches
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for (var f = 0; f < functions.length; f++) {
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for (var t = 0; t < testFunctions.length; t++) {
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for (var a = 0; a < arrays.length; a++) {
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var functionName = functions[f];
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currentFunc = this[testFunctions[t]];
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if (arrays[a] === "largeEmptyArray" && functionName === "map")
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continue;
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if (currentFunc === returnIndex && functionName === "reduceRight")
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continue;
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shouldBe("count=0;lastIndex=-1;copyArray("+arrays[a]+")."+functionName+"(forwarders[f], "+testFunctions[t]+", 0)",
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"count=0;lastIndex=-1;Array.prototype."+functionName+".call(toObject("+arrays[a]+"), forwarders[f], "+testFunctions[t]+", 0)");
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}
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}
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}
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// Test unordered object and array behaviour matches
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for (var f = 0; f < functions.length; f++) {
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for (var t = 0; t < testFunctions.length; t++) {
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for (var a = 0; a < arrays.length; a++) {
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var functionName = functions[f];
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currentFunc = this[testFunctions[t]];
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if (arrays[a] === "largeEmptyArray" && functionName === "map")
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continue;
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if (currentFunc === returnIndex && functionName === "reduceRight")
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continue;
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shouldBe("count=0;lastIndex=-1;copyArray("+arrays[a]+")."+functionName+"(forwarders[f], "+testFunctions[t]+", 0)",
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"count=0;lastIndex=-1;Array.prototype."+functionName+".call(toUnorderedObject("+arrays[a]+"), forwarders[f], "+testFunctions[t]+", 0)");
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}
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}
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}
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// Test number of function calls
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var callCounts = [
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[[1,0,0,1],[6,0,0,7],[1,0,0,1],[1,0,0,1],[1,0,0,1],[1,0,0,1],[1,0,0,1]],
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[[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[3,0,0,6],[3,0,0,6]],
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[[6,0,0,7],[1,0,0,1],[2,0,0,2],[2,0,0,2],[6,0,0,7],[3,0,0,6],[3,0,0,6]],
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[[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[3,0,0,6],[3,0,0,6]],
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[[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[3,0,0,6],[3,0,0,6]],
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[[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[3,0,0,6],[3,0,0,6]],
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[[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[4,0,0,7]]
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];
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var objCallCounts = [
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[[1,0,0,1],[6,0,0,7],[1,0,0,1],[1,0,0,1],[1,0,0,1],[1,0,0,1],[1,0,0,1]],
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[[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7]],
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[[6,0,0,7],[1,0,0,1],[2,0,0,2],[2,0,0,2],[6,0,0,7],[6,0,0,7],[6,0,0,7]],
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[[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7]],
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[[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7]],
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[[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7]],
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[[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7],[6,0,0,7]]
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];
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for (var f = 0; f < functions.length; f++) {
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for (var t = 0; t < testFunctions.length; t++) {
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for (var a = 0; a < arrays.length; a++) {
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var functionName = functions[f];
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currentFunc = this[testFunctions[t]];
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if (currentFunc === returnIndex && functionName === "reduceRight")
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continue;
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var expectedCnt = "" + callCounts[f][t][a];
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shouldBe("count=0;lastIndex=-1;copyArray("+arrays[a]+")."+functionName+"(forwarders[f], "+testFunctions[t]+", 0); count", expectedCnt);
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var expectedCnt = "" + objCallCounts[f][t][a];
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shouldBe("count=0;lastIndex=-1;Array.prototype."+functionName+".call(toObject("+arrays[a]+"), forwarders[f], "+testFunctions[t]+", 0); count", expectedCnt);
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shouldBe("count=0;lastIndex=-1;Array.prototype."+functionName+".call(toObject("+arrays[a]+"), forwarders[f], "+testFunctions[t]+", 0); count", expectedCnt);
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}
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}
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}
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