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75 lines
1.9 KiB
JavaScript
75 lines
1.9 KiB
JavaScript
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var assert = require('assert')
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var weak = require('weak')
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var ref = require('../')
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describe('Object', function () {
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var obj = {
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foo: 'bar'
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, test: Math.random()
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, now: new Date()
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}
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beforeEach(gc)
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it('should write and read back an Object in a Buffer', function () {
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var buf = new Buffer(ref.sizeof.Object)
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ref.writeObject(buf, 0, obj)
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var out = ref.readObject(buf)
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assert.strictEqual(obj, out)
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assert.deepEqual(obj, out)
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})
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it('should retain references to written Objects', function (done) {
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var o_gc = false
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var buf_gc = false
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var o = { foo: 'bar' }
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var buf = new Buffer(ref.sizeof.Object)
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weak(o, function () { o_gc = true })
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weak(buf, function () { buf_gc = true })
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ref.writeObject(buf, 0, o)
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assert(!o_gc, '"o" has been garbage collected too soon')
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assert(!buf_gc, '"buf" has been garbage collected too soon')
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// try to GC `o`
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o = null
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gc()
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assert(!o_gc, '"o" has been garbage collected too soon')
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assert(!buf_gc, '"buf" has been garbage collected too soon')
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// now GC `buf`
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buf = null
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setImmediate(function () {
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gc()
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assert(buf_gc, '"buf" has not been garbage collected')
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assert(o_gc, '"o" has not been garbage collected')
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done()
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});
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})
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it('should throw an Error when reading an Object from the NULL pointer', function () {
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assert.throws(function () {
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ref.NULL.readObject()
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})
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})
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describe('offset', function () {
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it('should read two Objects next to each other in memory', function () {
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var buf = new Buffer(ref.sizeof.pointer * 2)
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var a = {}
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var b = {}
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buf.writeObject(a, 0 * ref.sizeof.pointer)
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buf.writeObject(b, 1 * ref.sizeof.pointer)
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var _a = buf.readObject(0 * ref.sizeof.pointer)
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var _b = buf.readObject(1 * ref.sizeof.pointer)
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assert.strictEqual(a, _a)
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assert.strictEqual(b, _b)
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})
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})
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})
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