diff options
Diffstat (limited to 'node_modules/buffer/test/write.js')
-rw-r--r-- | node_modules/buffer/test/write.js | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/node_modules/buffer/test/write.js b/node_modules/buffer/test/write.js deleted file mode 100644 index 5841806..0000000 --- a/node_modules/buffer/test/write.js +++ /dev/null @@ -1,131 +0,0 @@ -if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false -var B = require('../').Buffer -var test = require('tape') -var isnan = require('is-nan') - -test('buffer.write string should get parsed as number', function (t) { - var b = new B(64) - b.writeUInt16LE('1003', 0) - t.equal(b.readUInt16LE(0), 1003) - t.end() -}) - -test('buffer.writeUInt8 a fractional number will get Math.floored', function (t) { - // Some extra work is necessary to make this test pass with the Object implementation - - var b = new B(1) - b.writeInt8(5.5, 0) - t.equal(b[0], 5) - t.end() -}) - -test('writeUint8 with a negative number throws', function (t) { - var buf = new B(1) - - t.throws(function () { - buf.writeUInt8(-3, 0) - }) - - t.end() -}) - -test('hex of write{Uint,Int}{8,16,32}{LE,BE}', function (t) { - t.plan(2 * (2 * 2 * 2 + 2)) - var hex = [ - '03', '0300', '0003', '03000000', '00000003', - 'fd', 'fdff', 'fffd', 'fdffffff', 'fffffffd' - ] - var reads = [ 3, 3, 3, 3, 3, -3, -3, -3, -3, -3 ] - var xs = ['UInt', 'Int'] - var ys = [8, 16, 32] - for (var i = 0; i < xs.length; i++) { - var x = xs[i] - for (var j = 0; j < ys.length; j++) { - var y = ys[j] - var endianesses = (y === 8) ? [''] : ['LE', 'BE'] - for (var k = 0; k < endianesses.length; k++) { - var z = endianesses[k] - - var v1 = new B(y / 8) - var writefn = 'write' + x + y + z - var val = (x === 'Int') ? -3 : 3 - v1[writefn](val, 0) - t.equal( - v1.toString('hex'), - hex.shift() - ) - var readfn = 'read' + x + y + z - t.equal( - v1[readfn](0), - reads.shift() - ) - } - } - } - t.end() -}) - -test('hex of write{Uint,Int}{8,16,32}{LE,BE} with overflow', function (t) { - if (!B.TYPED_ARRAY_SUPPORT) { - t.pass('object impl: skipping overflow test') - t.end() - return - } - - t.plan(3 * (2 * 2 * 2 + 2)) - var hex = [ - '', '03', '00', '030000', '000000', - '', 'fd', 'ff', 'fdffff', 'ffffff' - ] - var reads = [ - undefined, 3, 0, NaN, 0, - undefined, 253, -256, 16777213, -256 - ] - var xs = ['UInt', 'Int'] - var ys = [8, 16, 32] - for (var i = 0; i < xs.length; i++) { - var x = xs[i] - for (var j = 0; j < ys.length; j++) { - var y = ys[j] - var endianesses = (y === 8) ? [''] : ['LE', 'BE'] - for (var k = 0; k < endianesses.length; k++) { - var z = endianesses[k] - - var v1 = new B(y / 8 - 1) - var next = new B(4) - next.writeUInt32BE(0, 0) - var writefn = 'write' + x + y + z - var val = (x === 'Int') ? -3 : 3 - v1[writefn](val, 0, true) - t.equal( - v1.toString('hex'), - hex.shift() - ) - // check that nothing leaked to next buffer. - t.equal(next.readUInt32BE(0), 0) - // check that no bytes are read from next buffer. - next.writeInt32BE(~0, 0) - var readfn = 'read' + x + y + z - var r = reads.shift() - if (isnan(r)) t.pass('equal') - else t.equal(v1[readfn](0, true), r) - } - } - } - t.end() -}) -test('large values do not improperly roll over (ref #80)', function (t) { - var nums = [-25589992, -633756690, -898146932] - var out = new B(12) - out.fill(0) - out.writeInt32BE(nums[0], 0) - var newNum = out.readInt32BE(0) - t.equal(nums[0], newNum) - out.writeInt32BE(nums[1], 4) - newNum = out.readInt32BE(4) - t.equal(nums[1], newNum) - out.writeInt32BE(nums[2], 8) - newNum = out.readInt32BE(8) - t.equal(nums[2], newNum) - t.end() -}) |