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449 lines
15 KiB
449 lines
15 KiB
// Copyright 2013 the V8 project authors. All rights reserved.
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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 are
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// met:
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//
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// * 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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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// 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
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// These tests are adapted from Khronos DataView tests
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var intArray1 =
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[0, 1, 2, 3, 100, 101, 102, 103, 128, 129, 130, 131, 252, 253, 254, 255];
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var intArray2 =
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[31, 32, 33, 0, 1, 2, 3, 100, 101, 102, 103, 128, 129, 130, 131, 252,
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253, 254, 255];
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var initialArray =
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[204, 204, 204, 204, 204, 204, 204, 204, 204, 204, 204, 204, 204,
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204, 204, 204];
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var arayBuffer = null;
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var view = null;
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var viewStart = 0;
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var viewLength = 0;
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function getElementSize(func) {
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switch (func) {
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case "Int8":
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case "Uint8":
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return 1;
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case "Int16":
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case "Uint16":
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return 2;
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case "Int32":
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case "Uint32":
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case "Float32":
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return 4;
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case "Float64":
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return 8;
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default:
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assertUnreachable(func);
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}
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}
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function checkGet(func, index, expected, littleEndian) {
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function doGet() {
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if (littleEndian != undefined)
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return view["get" + func](index, littleEndian);
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else
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return view["get" + func](index);
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}
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if (index >=0 && index + getElementSize(func) - 1 < view.byteLength)
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assertSame(expected, doGet());
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else
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assertThrows(doGet, RangeError);
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}
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function checkSet(func, index, value, littleEndian) {
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function doSet() {
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if (littleEndian != undefined)
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view["set" + func](index, value, littleEndian);
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else
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view["set" + func](index, value);
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}
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if (index >= 0 &&
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index + getElementSize(func) - 1 < view.byteLength) {
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assertSame(undefined, doSet());
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checkGet(func, index, value, littleEndian);
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} else {
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assertThrows(doSet, RangeError);
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}
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}
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function test(isTestingGet, func, index, value, littleEndian) {
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if (isTestingGet)
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checkGet(func, index, value, littleEndian);
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else
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checkSet(func, index, value, littleEndian);
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}
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function createDataView(
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array, frontPaddingNum, littleEndian, start, length) {
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if (!littleEndian)
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array.reverse();
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var paddingArray = new Array(frontPaddingNum);
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arrayBuffer = (new Uint8Array(paddingArray.concat(array))).buffer;
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view = new DataView(arrayBuffer, viewStart, viewLength);
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if (!littleEndian)
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array.reverse(); // restore the array.
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}
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function runIntegerTestCases(isTestingGet, array, start, length) {
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createDataView(array, 0, true, start, length);
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test(isTestingGet, "Int8", 0, 0);
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test(isTestingGet, "Int8", undefined, 0);
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test(isTestingGet, "Int8", 8, -128);
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test(isTestingGet, "Int8", 15, -1);
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test(isTestingGet, "Uint8", 0, 0);
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test(isTestingGet, "Uint8", undefined, 0);
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test(isTestingGet, "Uint8", 8, 128);
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test(isTestingGet, "Uint8", 15, 255);
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// Little endian.
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test(isTestingGet, "Int16", 0, 256, true);
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test(isTestingGet, "Int16", undefined, 256, true);
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test(isTestingGet, "Int16", 5, 26213, true);
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test(isTestingGet, "Int16", 9, -32127, true);
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test(isTestingGet, "Int16", 14, -2, true);
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// Big endian.
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test(isTestingGet, "Int16", 0, 1);
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test(isTestingGet, "Int16", undefined, 1);
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test(isTestingGet, "Int16", 5, 25958);
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test(isTestingGet, "Int16", 9, -32382);
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test(isTestingGet, "Int16", 14, -257);
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// Little endian.
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test(isTestingGet, "Uint16", 0, 256, true);
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test(isTestingGet, "Uint16", undefined, 256, true);
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test(isTestingGet, "Uint16", 5, 26213, true);
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test(isTestingGet, "Uint16", 9, 33409, true);
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test(isTestingGet, "Uint16", 14, 65534, true);
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// Big endian.
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test(isTestingGet, "Uint16", 0, 1);
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test(isTestingGet, "Uint16", undefined, 1);
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test(isTestingGet, "Uint16", 5, 25958);
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test(isTestingGet, "Uint16", 9, 33154);
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test(isTestingGet, "Uint16", 14, 65279);
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// Little endian.
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test(isTestingGet, "Int32", 0, 50462976, true);
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test(isTestingGet, "Int32", undefined, 50462976, true);
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test(isTestingGet, "Int32", 3, 1717920771, true);
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test(isTestingGet, "Int32", 6, -2122291354, true);
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test(isTestingGet, "Int32", 9, -58490239, true);
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test(isTestingGet, "Int32", 12,-66052, true);
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// Big endian.
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test(isTestingGet, "Int32", 0, 66051);
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test(isTestingGet, "Int32", undefined, 66051);
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test(isTestingGet, "Int32", 3, 56911206);
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test(isTestingGet, "Int32", 6, 1718059137);
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test(isTestingGet, "Int32", 9, -2122152964);
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test(isTestingGet, "Int32", 12, -50462977);
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// Little endian.
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test(isTestingGet, "Uint32", 0, 50462976, true);
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test(isTestingGet, "Uint32", undefined, 50462976, true);
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test(isTestingGet, "Uint32", 3, 1717920771, true);
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test(isTestingGet, "Uint32", 6, 2172675942, true);
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test(isTestingGet, "Uint32", 9, 4236477057, true);
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test(isTestingGet, "Uint32", 12,4294901244, true);
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// Big endian.
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test(isTestingGet, "Uint32", 0, 66051);
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test(isTestingGet, "Uint32", undefined, 66051);
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test(isTestingGet, "Uint32", 3, 56911206);
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test(isTestingGet, "Uint32", 6, 1718059137);
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test(isTestingGet, "Uint32", 9, 2172814332);
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test(isTestingGet, "Uint32", 12, 4244504319);
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}
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function testFloat(isTestingGet, func, array, start, expected) {
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// Little endian.
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createDataView(array, 0, true, start);
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test(isTestingGet, func, 0, expected, true);
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test(isTestingGet, func, undefined, expected, true);
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createDataView(array, 3, true, start);
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test(isTestingGet, func, 3, expected, true);
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createDataView(array, 7, true, start);
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test(isTestingGet, func, 7, expected, true);
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createDataView(array, 10, true, start);
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test(isTestingGet, func, 10, expected, true);
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// Big endian.
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createDataView(array, 0, false);
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test(isTestingGet, func, 0, expected, false);
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test(isTestingGet, func, undefined, expected, false);
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createDataView(array, 3, false);
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test(isTestingGet, func, 3, expected, false);
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createDataView(array, 7, false);
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test(isTestingGet, func, 7, expected, false);
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createDataView(array, 10, false);
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test(isTestingGet, func, 10, expected, false);
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}
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function runFloatTestCases(isTestingGet, start) {
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testFloat(isTestingGet, "Float32",
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isTestingGet ? [0, 0, 32, 65] : initialArray, start, 10);
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testFloat(isTestingGet, "Float32",
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isTestingGet ? [164, 112, 157, 63] : initialArray,
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start, 1.2300000190734863);
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testFloat(isTestingGet, "Float32",
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isTestingGet ? [95, 53, 50, 199] : initialArray,
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start, -45621.37109375);
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testFloat(isTestingGet, "Float32",
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isTestingGet ? [255, 255, 255, 127] : initialArray,
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start, NaN);
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testFloat(isTestingGet, "Float32",
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isTestingGet ? [255, 255, 255, 255] : initialArray,
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start, -NaN);
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testFloat(isTestingGet, "Float64",
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isTestingGet ? [0, 0, 0, 0, 0, 0, 36, 64] : initialArray,
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start, 10);
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testFloat(isTestingGet, "Float64",
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isTestingGet ? [174, 71, 225, 122, 20, 174, 243, 63] : initialArray,
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start, 1.23);
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testFloat(isTestingGet, "Float64",
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isTestingGet ? [181, 55, 248, 30, 242, 179, 87, 193] : initialArray,
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start, -6213576.4839);
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testFloat(isTestingGet, "Float64",
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isTestingGet ? [255, 255, 255, 255, 255, 255, 255, 127] : initialArray,
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start, NaN);
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testFloat(isTestingGet, "Float64",
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isTestingGet ? [255, 255, 255, 255, 255, 255, 255, 255] : initialArray,
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start, -NaN);
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}
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function runNegativeIndexTests(isTestingGet) {
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createDataView(intArray1, 0, true, 0, 16);
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test(isTestingGet, "Int8", -1, 0);
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test(isTestingGet, "Int8", -2, 0);
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test(isTestingGet, "Uint8", -1, 0);
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test(isTestingGet, "Uint8", -2, 0);
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test(isTestingGet, "Int16", -1, 1);
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test(isTestingGet, "Int16", -2, 1);
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test(isTestingGet, "Int16", -3, 1);
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test(isTestingGet, "Uint16", -1, 1);
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test(isTestingGet, "Uint16", -2, 1);
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test(isTestingGet, "Uint16", -3, 1);
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test(isTestingGet, "Int32", -1, 66051);
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test(isTestingGet, "Int32", -3, 66051);
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test(isTestingGet, "Int32", -5, 66051);
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test(isTestingGet, "Uint32", -1, 66051);
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test(isTestingGet, "Uint32", -3, 66051);
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test(isTestingGet, "Uint32", -5, 66051);
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createDataView([0, 0, 0, 0, 0, 0, 0, 0], 0, true, 0, 8);
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test(isTestingGet, "Float32", -1, 0);
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test(isTestingGet, "Float32", -3, 0);
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test(isTestingGet, "Float32", -5, 0);
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test(isTestingGet, "Float64", -1, 0);
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test(isTestingGet, "Float64", -5, 0);
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test(isTestingGet, "Float64", -9, 0);
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}
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function TestGetters() {
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runIntegerTestCases(true, intArray1, 0, 16);
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runFloatTestCases(true, 0);
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runIntegerTestCases(true, intArray2, 3, 2);
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runFloatTestCases(true, 3);
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runNegativeIndexTests(true);
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}
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function TestSetters() {
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runIntegerTestCases(false, initialArray, 0, 16);
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runFloatTestCases(false);
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runIntegerTestCases(false, initialArray, 3, 2);
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runFloatTestCases(false, 7);
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runNegativeIndexTests(false);
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}
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TestGetters();
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TestSetters();
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function CheckOutOfRangeInt8(value, expected) {
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var view = new DataView(new ArrayBuffer(100));
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assertSame(undefined, view.setInt8(0, value));
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assertSame(expected, view.getInt8(0));
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assertSame(undefined, view.setInt8(0, value, true));
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assertSame(expected, view.getInt8(0, true));
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}
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function CheckOutOfRangeUint8(value, expected) {
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var view = new DataView(new ArrayBuffer(100));
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assertSame(undefined, view.setUint8(0, value));
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assertSame(expected, view.getUint8(0));
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assertSame(undefined, view.setUint8(0, value, true));
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assertSame(expected, view.getUint8(0, true));
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}
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function CheckOutOfRangeInt16(value, expected) {
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var view = new DataView(new ArrayBuffer(100));
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assertSame(undefined, view.setInt16(0, value));
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assertSame(expected, view.getInt16(0));
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assertSame(undefined, view.setInt16(0, value, true));
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assertSame(expected, view.getInt16(0, true));
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}
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function CheckOutOfRangeUint16(value, expected) {
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var view = new DataView(new ArrayBuffer(100));
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assertSame(undefined, view.setUint16(0, value));
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assertSame(expected, view.getUint16(0));
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assertSame(undefined, view.setUint16(0, value, true));
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assertSame(expected, view.getUint16(0, true));
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}
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function CheckOutOfRangeInt32(value, expected) {
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var view = new DataView(new ArrayBuffer(100));
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assertSame(undefined, view.setInt32(0, value));
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assertSame(expected, view.getInt32(0));
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assertSame(undefined, view.setInt32(0, value, true));
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assertSame(expected, view.getInt32(0, true));
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}
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function CheckOutOfRangeUint32(value, expected) {
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var view = new DataView(new ArrayBuffer(100));
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assertSame(undefined, view.setUint32(0, value));
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assertSame(expected, view.getUint32(0));
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assertSame(undefined, view.setUint32(0, value, true));
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assertSame(expected, view.getUint32(0, true));
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}
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function TestOutOfRange() {
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CheckOutOfRangeInt8(0x80, -0x80);
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CheckOutOfRangeInt8(0x1000, 0);
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CheckOutOfRangeInt8(-0x81, 0x7F);
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CheckOutOfRangeUint8(0x100, 0);
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CheckOutOfRangeUint8(0x1000, 0);
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CheckOutOfRangeUint8(-0x80, 0x80);
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CheckOutOfRangeUint8(-1, 0xFF);
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CheckOutOfRangeUint8(-0xFF, 1);
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CheckOutOfRangeInt16(0x8000, -0x8000);
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CheckOutOfRangeInt16(0x10000, 0);
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CheckOutOfRangeInt16(-0x8001, 0x7FFF);
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CheckOutOfRangeUint16(0x10000, 0);
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CheckOutOfRangeUint16(0x100000, 0);
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CheckOutOfRangeUint16(-0x8000, 0x8000);
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CheckOutOfRangeUint16(-1, 0xFFFF);
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CheckOutOfRangeUint16(-0xFFFF, 1);
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CheckOutOfRangeInt32(0x80000000, -0x80000000);
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CheckOutOfRangeInt32(0x100000000, 0);
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CheckOutOfRangeInt32(-0x80000001, 0x7FFFFFFF);
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CheckOutOfRangeUint32(0x100000000, 0);
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CheckOutOfRangeUint32(0x1000000000, 0);
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CheckOutOfRangeUint32(-0x80000000, 0x80000000);
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CheckOutOfRangeUint32(-1, 0xFFFFFFFF);
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CheckOutOfRangeUint32(-0xFFFFFFFF, 1);
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}
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TestOutOfRange();
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function TestGeneralAccessors() {
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var a = new DataView(new ArrayBuffer(256));
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function CheckAccessor(name) {
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var f = a[name];
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assertThrows(function() { f(); }, TypeError);
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f.call(a, 0, 0); // should not throw
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assertThrows(function() { f.call({}, 0, 0); }, TypeError);
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assertThrows(function() { f.call(a); }, TypeError);
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if (name.indexOf("set") == 0) {
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assertThrows(function() { f.call(a, 1); }, TypeError);
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} else {
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f.call(a, 1); // should not throw
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}
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}
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CheckAccessor("getUint8");
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CheckAccessor("setUint8");
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CheckAccessor("getInt8");
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CheckAccessor("setInt8");
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CheckAccessor("getUint16");
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CheckAccessor("setUint16");
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CheckAccessor("getInt16");
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CheckAccessor("setInt16");
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CheckAccessor("getUint32");
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CheckAccessor("setUint32");
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CheckAccessor("getInt32");
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CheckAccessor("setInt32");
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CheckAccessor("getFloat32");
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CheckAccessor("setFloat32");
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CheckAccessor("getFloat64");
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CheckAccessor("setFloat64");
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}
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TestGeneralAccessors();
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function TestInsufficientArguments() {
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var a = new DataView(new ArrayBuffer(256));
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assertThrows(function() { a.getUint8(); }, TypeError);
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assertThrows(function() { a.getInt8(); }, TypeError);
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assertThrows(function() { a.getUint16(); }, TypeError);
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assertThrows(function() { a.getInt16(); }, TypeError);
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assertThrows(function() { a.getUint32(); }, TypeError);
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assertThrows(function() { a.getInt32(); }, TypeError);
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assertThrows(function() { a.getFloat32(); }, TypeError);
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assertThrows(function() { a.getFloat64(); }, TypeError);
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assertThrows(function() { a.setUint8(); }, TypeError);
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assertThrows(function() { a.setInt8(); }, TypeError);
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assertThrows(function() { a.setUint16(); }, TypeError);
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assertThrows(function() { a.setInt16(); }, TypeError);
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assertThrows(function() { a.setUint32(); }, TypeError);
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assertThrows(function() { a.setInt32(); }, TypeError);
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assertThrows(function() { a.setFloat32(); }, TypeError);
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assertThrows(function() { a.setFloat64(); }, TypeError);
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assertThrows(function() { a.setUint8(1) }, TypeError);
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assertThrows(function() { a.setInt8(1) }, TypeError);
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assertThrows(function() { a.setUint16(1) }, TypeError);
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assertThrows(function() { a.setInt16(1) }, TypeError);
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assertThrows(function() { a.setUint32(1) }, TypeError);
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assertThrows(function() { a.setInt32(1) }, TypeError);
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assertThrows(function() { a.setFloat32(1) }, TypeError);
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assertThrows(function() { a.setFloat64(1) }, TypeError);
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}
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TestInsufficientArguments();
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