67 lines
1.4 KiB
JavaScript
67 lines
1.4 KiB
JavaScript
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'use strict'
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var test = require('tape')
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var reusify = require('./')
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test('reuse objects', function (t) {
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t.plan(6)
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function MyObject () {
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t.pass('constructor called')
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this.next = null
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}
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var instance = reusify(MyObject)
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var obj = instance.get()
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t.notEqual(obj, instance.get(), 'two instance created')
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t.notOk(obj.next, 'next must be null')
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instance.release(obj)
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// the internals keeps a hot copy ready for reuse
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// putting this one back in the queue
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instance.release(instance.get())
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// comparing the old one with the one we got
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// never do this in real code, after release you
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// should never reuse that instance
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t.equal(obj, instance.get(), 'instance must be reused')
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})
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test('reuse more than 2 objects', function (t) {
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function MyObject () {
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t.pass('constructor called')
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this.next = null
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}
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var instance = reusify(MyObject)
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var obj = instance.get()
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var obj2 = instance.get()
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var obj3 = instance.get()
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t.notOk(obj.next, 'next must be null')
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t.notOk(obj2.next, 'next must be null')
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t.notOk(obj3.next, 'next must be null')
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t.notEqual(obj, obj2)
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t.notEqual(obj, obj3)
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t.notEqual(obj3, obj2)
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instance.release(obj)
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instance.release(obj2)
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instance.release(obj3)
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// skip one
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instance.get()
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var obj4 = instance.get()
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var obj5 = instance.get()
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var obj6 = instance.get()
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t.equal(obj4, obj)
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t.equal(obj5, obj2)
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t.equal(obj6, obj3)
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t.end()
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})
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