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Diffstat (limited to 'addon-sdk/source/test/buffers/test-read-types.js')
-rw-r--r-- | addon-sdk/source/test/buffers/test-read-types.js | 368 |
1 files changed, 0 insertions, 368 deletions
diff --git a/addon-sdk/source/test/buffers/test-read-types.js b/addon-sdk/source/test/buffers/test-read-types.js deleted file mode 100644 index 35aca16ad..000000000 --- a/addon-sdk/source/test/buffers/test-read-types.js +++ /dev/null @@ -1,368 +0,0 @@ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -const { Buffer } = require('sdk/io/buffer'); - -exports.testReadDouble = helper('readDoubleLE/readDoubleBE', function (assert) { - var buffer = new Buffer(8); - - buffer[0] = 0x55; - buffer[1] = 0x55; - buffer[2] = 0x55; - buffer[3] = 0x55; - buffer[4] = 0x55; - buffer[5] = 0x55; - buffer[6] = 0xd5; - buffer[7] = 0x3f; - assert.equal(1.1945305291680097e+103, buffer.readDoubleBE(0)); - assert.equal(0.3333333333333333, buffer.readDoubleLE(0)); - - buffer[0] = 1; - buffer[1] = 0; - buffer[2] = 0; - buffer[3] = 0; - buffer[4] = 0; - buffer[5] = 0; - buffer[6] = 0xf0; - buffer[7] = 0x3f; - assert.equal(7.291122019655968e-304, buffer.readDoubleBE(0)); - assert.equal(1.0000000000000002, buffer.readDoubleLE(0)); - - buffer[0] = 2; - assert.equal(4.778309726801735e-299, buffer.readDoubleBE(0)); - assert.equal(1.0000000000000004, buffer.readDoubleLE(0)); - - buffer[0] = 1; - buffer[6] = 0; - buffer[7] = 0; - assert.equal(7.291122019556398e-304, buffer.readDoubleBE(0)); - assert.equal(5e-324, buffer.readDoubleLE(0)); - - buffer[0] = 0xff; - buffer[1] = 0xff; - buffer[2] = 0xff; - buffer[3] = 0xff; - buffer[4] = 0xff; - buffer[5] = 0xff; - buffer[6] = 0x0f; - buffer[7] = 0x00; - assert.ok(isNaN(buffer.readDoubleBE(0))); - assert.equal(2.225073858507201e-308, buffer.readDoubleLE(0)); - - buffer[6] = 0xef; - buffer[7] = 0x7f; - assert.ok(isNaN(buffer.readDoubleBE(0))); - assert.equal(1.7976931348623157e+308, buffer.readDoubleLE(0)); - - buffer[0] = 0; - buffer[1] = 0; - buffer[2] = 0; - buffer[3] = 0; - buffer[4] = 0; - buffer[5] = 0; - buffer[6] = 0xf0; - buffer[7] = 0x3f; - assert.equal(3.03865e-319, buffer.readDoubleBE(0)); - assert.equal(1, buffer.readDoubleLE(0)); - - buffer[6] = 0; - buffer[7] = 0x40; - assert.equal(3.16e-322, buffer.readDoubleBE(0)); - assert.equal(2, buffer.readDoubleLE(0)); - - buffer[7] = 0xc0; - assert.equal(9.5e-322, buffer.readDoubleBE(0)); - assert.equal(-2, buffer.readDoubleLE(0)); - - buffer[6] = 0x10; - buffer[7] = 0; - assert.equal(2.0237e-320, buffer.readDoubleBE(0)); - assert.equal(2.2250738585072014e-308, buffer.readDoubleLE(0)); - - buffer[6] = 0; - assert.equal(0, buffer.readDoubleBE(0)); - assert.equal(0, buffer.readDoubleLE(0)); - assert.equal(false, 1 / buffer.readDoubleLE(0) < 0); - - buffer[7] = 0x80; - assert.equal(6.3e-322, buffer.readDoubleBE(0)); - assert.equal(0, buffer.readDoubleLE(0)); - assert.equal(true, 1 / buffer.readDoubleLE(0) < 0); - - buffer[6] = 0xf0; - buffer[7] = 0x7f; - assert.equal(3.0418e-319, buffer.readDoubleBE(0)); - assert.equal(Infinity, buffer.readDoubleLE(0)); - - buffer[6] = 0xf0; - buffer[7] = 0xff; - assert.equal(3.04814e-319, buffer.readDoubleBE(0)); - assert.equal(-Infinity, buffer.readDoubleLE(0)); -}); - - -exports.testReadFloat = helper('readFloatLE/readFloatBE', function (assert) { - var buffer = new Buffer(4); - - buffer[0] = 0; - buffer[1] = 0; - buffer[2] = 0x80; - buffer[3] = 0x3f; - assert.equal(4.600602988224807e-41, buffer.readFloatBE(0)); - assert.equal(1, buffer.readFloatLE(0)); - - buffer[0] = 0; - buffer[1] = 0; - buffer[2] = 0; - buffer[3] = 0xc0; - assert.equal(2.6904930515036488e-43, buffer.readFloatBE(0)); - assert.equal(-2, buffer.readFloatLE(0)); - - buffer[0] = 0xff; - buffer[1] = 0xff; - buffer[2] = 0x7f; - buffer[3] = 0x7f; - assert.ok(isNaN(buffer.readFloatBE(0))); - assert.equal(3.4028234663852886e+38, buffer.readFloatLE(0)); - - buffer[0] = 0xab; - buffer[1] = 0xaa; - buffer[2] = 0xaa; - buffer[3] = 0x3e; - assert.equal(-1.2126478207002966e-12, buffer.readFloatBE(0)); - assert.equal(0.3333333432674408, buffer.readFloatLE(0)); - - buffer[0] = 0; - buffer[1] = 0; - buffer[2] = 0; - buffer[3] = 0; - assert.equal(0, buffer.readFloatBE(0)); - assert.equal(0, buffer.readFloatLE(0)); - assert.equal(false, 1 / buffer.readFloatLE(0) < 0); - - buffer[3] = 0x80; - assert.equal(1.793662034335766e-43, buffer.readFloatBE(0)); - assert.equal(0, buffer.readFloatLE(0)); - assert.equal(true, 1 / buffer.readFloatLE(0) < 0); - - buffer[0] = 0; - buffer[1] = 0; - buffer[2] = 0x80; - buffer[3] = 0x7f; - assert.equal(4.609571298396486e-41, buffer.readFloatBE(0)); - assert.equal(Infinity, buffer.readFloatLE(0)); - - buffer[0] = 0; - buffer[1] = 0; - buffer[2] = 0x80; - buffer[3] = 0xff; - assert.equal(4.627507918739843e-41, buffer.readFloatBE(0)); - assert.equal(-Infinity, buffer.readFloatLE(0)); -}); - - -exports.testReadInt8 = helper('readInt8', function (assert) { - var data = new Buffer(4); - - data[0] = 0x23; - assert.equal(0x23, data.readInt8(0)); - - data[0] = 0xff; - assert.equal(-1, data.readInt8(0)); - - data[0] = 0x87; - data[1] = 0xab; - data[2] = 0x7c; - data[3] = 0xef; - assert.equal(-121, data.readInt8(0)); - assert.equal(-85, data.readInt8(1)); - assert.equal(124, data.readInt8(2)); - assert.equal(-17, data.readInt8(3)); -}); - - -exports.testReadInt16 = helper('readInt16BE/readInt16LE', function (assert) { - var buffer = new Buffer(6); - - buffer[0] = 0x16; - buffer[1] = 0x79; - assert.equal(0x1679, buffer.readInt16BE(0)); - assert.equal(0x7916, buffer.readInt16LE(0)); - - buffer[0] = 0xff; - buffer[1] = 0x80; - assert.equal(-128, buffer.readInt16BE(0)); - assert.equal(-32513, buffer.readInt16LE(0)); - - /* test offset with weenix */ - buffer[0] = 0x77; - buffer[1] = 0x65; - buffer[2] = 0x65; - buffer[3] = 0x6e; - buffer[4] = 0x69; - buffer[5] = 0x78; - assert.equal(0x7765, buffer.readInt16BE(0)); - assert.equal(0x6565, buffer.readInt16BE(1)); - assert.equal(0x656e, buffer.readInt16BE(2)); - assert.equal(0x6e69, buffer.readInt16BE(3)); - assert.equal(0x6978, buffer.readInt16BE(4)); - assert.equal(0x6577, buffer.readInt16LE(0)); - assert.equal(0x6565, buffer.readInt16LE(1)); - assert.equal(0x6e65, buffer.readInt16LE(2)); - assert.equal(0x696e, buffer.readInt16LE(3)); - assert.equal(0x7869, buffer.readInt16LE(4)); -}); - - -exports.testReadInt32 = helper('readInt32BE/readInt32LE', function (assert) { - var buffer = new Buffer(6); - - buffer[0] = 0x43; - buffer[1] = 0x53; - buffer[2] = 0x16; - buffer[3] = 0x79; - assert.equal(0x43531679, buffer.readInt32BE(0)); - assert.equal(0x79165343, buffer.readInt32LE(0)); - - buffer[0] = 0xff; - buffer[1] = 0xfe; - buffer[2] = 0xef; - buffer[3] = 0xfa; - assert.equal(-69638, buffer.readInt32BE(0)); - assert.equal(-84934913, buffer.readInt32LE(0)); - - buffer[0] = 0x42; - buffer[1] = 0xc3; - buffer[2] = 0x95; - buffer[3] = 0xa9; - buffer[4] = 0x36; - buffer[5] = 0x17; - assert.equal(0x42c395a9, buffer.readInt32BE(0)); - assert.equal(-1013601994, buffer.readInt32BE(1)); - assert.equal(-1784072681, buffer.readInt32BE(2)); - assert.equal(-1449802942, buffer.readInt32LE(0)); - assert.equal(917083587, buffer.readInt32LE(1)); - assert.equal(389458325, buffer.readInt32LE(2)); -}); - - -/* - * We need to check the following things: - * - We are correctly resolving big endian (doesn't mean anything for 8 bit) - * - Correctly resolving little endian (doesn't mean anything for 8 bit) - * - Correctly using the offsets - * - Correctly interpreting values that are beyond the signed range as unsigned - */ -exports.testReadUInt8 = helper('readUInt8', function (assert) { - var data = new Buffer(4); - - data[0] = 23; - data[1] = 23; - data[2] = 23; - data[3] = 23; - assert.equal(23, data.readUInt8(0)); - assert.equal(23, data.readUInt8(1)); - assert.equal(23, data.readUInt8(2)); - assert.equal(23, data.readUInt8(3)); - - data[0] = 255; /* If it became a signed int, would be -1 */ - assert.equal(255, data.readUInt8(0)); -}); - - -/* - * Test 16 bit unsigned integers. We need to verify the same set as 8 bit, only - * now some of the issues actually matter: - * - We are correctly resolving big endian - * - Correctly resolving little endian - * - Correctly using the offsets - * - Correctly interpreting values that are beyond the signed range as unsigned - */ -exports.testReadUInt16 = helper('readUInt16LE/readUInt16BE', function (assert) { - var data = new Buffer(4); - - data[0] = 0; - data[1] = 0x23; - data[2] = 0x42; - data[3] = 0x3f; - assert.equal(0x23, data.readUInt16BE(0)); - assert.equal(0x2342, data.readUInt16BE(1)); - assert.equal(0x423f, data.readUInt16BE(2)); - assert.equal(0x2300, data.readUInt16LE(0)); - assert.equal(0x4223, data.readUInt16LE(1)); - assert.equal(0x3f42, data.readUInt16LE(2)); - - data[0] = 0xfe; - data[1] = 0xfe; - assert.equal(0xfefe, data.readUInt16BE(0)); - assert.equal(0xfefe, data.readUInt16LE(0)); -}); - - -/* - * Test 32 bit unsigned integers. We need to verify the same set as 8 bit, only - * now some of the issues actually matter: - * - We are correctly resolving big endian - * - Correctly using the offsets - * - Correctly interpreting values that are beyond the signed range as unsigned - */ -exports.testReadUInt32 = helper('readUInt32LE/readUInt32BE', function (assert) { - var data = new Buffer(8); - - data[0] = 0x32; - data[1] = 0x65; - data[2] = 0x42; - data[3] = 0x56; - data[4] = 0x23; - data[5] = 0xff; - assert.equal(0x32654256, data.readUInt32BE(0)); - assert.equal(0x65425623, data.readUInt32BE(1)); - assert.equal(0x425623ff, data.readUInt32BE(2)); - assert.equal(0x56426532, data.readUInt32LE(0)); - assert.equal(0x23564265, data.readUInt32LE(1)); - assert.equal(0xff235642, data.readUInt32LE(2)); -}); - -function helper (description, fn) { - let bulkAssert = { - equal: function (a, b) { - if (a !== b) throw new Error('Error found in ' + description); - }, - ok: function (value) { - if (!value) throw new Error('Error found in ' + description); - }, - throws: function (shouldThrow) { - let didItThrow = false; - try { - shouldThrow(); - } catch (e) { - didItThrow = e; - } - if (!didItThrow) - throw new Error('Error found in ' + description + ': ' + shouldThrow + ' should have thrown'); - } - }; - return function (assert) { - fn(bulkAssert); - // If we get here, no errors thrown - assert.pass('All tests passed for ' + description); - }; -} |