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50 lines
1.1 KiB
JavaScript
50 lines
1.1 KiB
JavaScript
'use strict';
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false;
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var Buffer = require('../../').Buffer;
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var common = {};
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var assert = require('assert');
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var Buffer = require('../../').Buffer;
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var LENGTH = 16;
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var ab = new ArrayBuffer(LENGTH);
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var dv = new DataView(ab);
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var ui = new Uint8Array(ab);
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var buf = new Buffer(ab);
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assert.ok(Buffer.isBuffer(buf));
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// For backwards compatibility of old .parent property test that if buf is not
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// a slice then .parent should be undefined.
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assert.equal(buf.parent, undefined);
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assert.equal(buf.buffer, ab);
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assert.equal(buf.length, ab.byteLength);
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buf.fill(0xC);
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for (var i = 0; i < LENGTH; i++) {
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assert.equal(ui[i], 0xC);
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ui[i] = 0xF;
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assert.equal(buf[i], 0xF);
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}
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buf.writeUInt32LE(0xF00, 0);
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buf.writeUInt32BE(0xB47, 4);
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buf.writeDoubleLE(3.1415, 8);
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assert.equal(dv.getUint32(0, true), 0xF00);
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assert.equal(dv.getUint32(4), 0xB47);
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assert.equal(dv.getFloat64(8, true), 3.1415);
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// Now test protecting users from doing stupid things
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assert.throws(function() {
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function AB() { }
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AB.__proto__ = ArrayBuffer;
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AB.prototype.__proto__ = ArrayBuffer.prototype;
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new Buffer(new AB());
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}, TypeError);
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