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51 lines
1.3 KiB
51 lines
1.3 KiB
// We've experienced a regression where the module loader stats a bunch of
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// directories on require() even if it's been called before. The require()
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// should caching the request.
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var common = require('../common');
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var fs = require('fs');
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var assert = require('assert');
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var counter = 0;
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// Switch out the two stat implementations so that they increase a counter
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// each time they are called.
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var _statSync = fs.statSync;
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var _stat = fs.stat;
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fs.statSync = function() {
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counter++;
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return _statSync.apply(this, arguments);
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};
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fs.stat = function() {
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counter++;
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return _stat.apply(this, arguments);
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};
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// Load the module 'a' and 'http' once. It should become cached.
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require(common.fixturesDir + '/a');
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require('../fixtures/a.js');
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require('./../fixtures/a.js');
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require('http');
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console.log('counterBefore = %d', counter);
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var counterBefore = counter;
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// Now load the module a bunch of times with equivalent paths.
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// stat should not be called.
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for (var i = 0; i < 100; i++) {
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require(common.fixturesDir + '/a');
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require('../fixtures/a.js');
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require('./../fixtures/a.js');
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}
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// Do the same with a built-in module
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for (var i = 0; i < 100; i++) {
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require('http');
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}
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console.log('counterAfter = %d', counter);
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var counterAfter = counter;
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assert.equal(counterBefore, counterAfter);
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