64 lines
1.9 KiB
JavaScript
64 lines
1.9 KiB
JavaScript
var BufferPool = require('../lib/BufferPool');
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require('should');
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describe('BufferPool', function() {
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describe('#ctor', function() {
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it('allocates pool', function() {
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var db = new BufferPool(1000);
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db.size.should.eql(1000);
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});
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});
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describe('#get', function() {
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it('grows the pool if necessary', function() {
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var db = new BufferPool(1000);
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var buf = db.get(2000);
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db.size.should.be.above(1000);
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db.used.should.eql(2000);
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buf.length.should.eql(2000);
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});
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it('grows the pool after the first call, if necessary', function() {
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var db = new BufferPool(1000);
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var buf = db.get(1000);
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db.used.should.eql(1000);
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db.size.should.eql(1000);
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buf.length.should.eql(1000);
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var buf2 = db.get(1000);
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db.used.should.eql(2000);
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db.size.should.be.above(1000);
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buf2.length.should.eql(1000);
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});
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it('grows the pool according to the growStrategy if necessary', function() {
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var db = new BufferPool(1000, function(db, length) {
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return db.size + 2345;
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});
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var buf = db.get(2000);
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db.size.should.eql(3345);
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buf.length.should.eql(2000);
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});
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it('doesnt grow the pool if theres enough room available', function() {
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var db = new BufferPool(1000);
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var buf = db.get(1000);
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db.size.should.eql(1000);
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buf.length.should.eql(1000);
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});
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});
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describe('#reset', function() {
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it('shinks the pool', function() {
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var db = new BufferPool(1000);
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var buf = db.get(2000);
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db.reset(true);
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db.size.should.eql(1000);
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});
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it('shrinks the pool according to the shrinkStrategy', function() {
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var db = new BufferPool(1000, function(db, length) {
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return db.used + length;
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}, function(db) {
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return 0;
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});
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var buf = db.get(2000);
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db.reset(true);
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db.size.should.eql(0);
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});
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});
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});
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