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shrine-medco/shrine-webclient/src/main/html/node_modules/lru-cache/test/memory-leak.js
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memory-leak.js
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			#!/usr/bin/env node --expose_gc


			var weak = require('weak');
			var test = require('tap').test
			var LRU = require('../')
			var l = new LRU({ max: 10 })
			var refs = 0
			function X() {
			refs ++
			weak(this, deref)
			}

			function deref() {
			refs --
			}

			test('no leaks', function (t) {
			// fill up the cache
			for (var i = 0; i < 100; i++) {
			l.set(i, new X);
			// throw some gets in there, too.
			if (i % 2 === 0)
			l.get(i / 2)
			}

			gc()

			var start = process.memoryUsage()

			// capture the memory
			var startRefs = refs

			// do it again, but more
			for (var i = 0; i < 10000; i++) {
			l.set(i, new X);
			// throw some gets in there, too.
			if (i % 2 === 0)
			l.get(i / 2)
			}

			gc()

			var end = process.memoryUsage()
			t.equal(refs, startRefs, 'no leaky refs')

			console.error('start: %j\n' +
			'end: %j', start, end);
			t.pass();
			t.end();
			})