forked from zhurui/management
121 lines
2.3 KiB
JavaScript
121 lines
2.3 KiB
JavaScript
var test = require('tap').test
|
|
var LRU = require('../')
|
|
|
|
test('forEach', function (t) {
|
|
var l = new LRU(5)
|
|
for (var i = 0; i < 10; i ++) {
|
|
l.set(i.toString(), i.toString(2))
|
|
}
|
|
|
|
var i = 9
|
|
l.forEach(function (val, key, cache) {
|
|
t.equal(cache, l)
|
|
t.equal(key, i.toString())
|
|
t.equal(val, i.toString(2))
|
|
i -= 1
|
|
})
|
|
|
|
// get in order of most recently used
|
|
l.get(6)
|
|
l.get(8)
|
|
|
|
var order = [ 8, 6, 9, 7, 5 ]
|
|
var i = 0
|
|
|
|
l.forEach(function (val, key, cache) {
|
|
var j = order[i ++]
|
|
t.equal(cache, l)
|
|
t.equal(key, j.toString())
|
|
t.equal(val, j.toString(2))
|
|
})
|
|
t.equal(i, order.length);
|
|
|
|
t.end()
|
|
})
|
|
|
|
test('keys() and values()', function (t) {
|
|
var l = new LRU(5)
|
|
for (var i = 0; i < 10; i ++) {
|
|
l.set(i.toString(), i.toString(2))
|
|
}
|
|
|
|
t.similar(l.keys(), ['9', '8', '7', '6', '5'])
|
|
t.similar(l.values(), ['1001', '1000', '111', '110', '101'])
|
|
|
|
// get in order of most recently used
|
|
l.get(6)
|
|
l.get(8)
|
|
|
|
t.similar(l.keys(), ['8', '6', '9', '7', '5'])
|
|
t.similar(l.values(), ['1000', '110', '1001', '111', '101'])
|
|
|
|
t.end()
|
|
})
|
|
|
|
test('all entries are iterated over', function(t) {
|
|
var l = new LRU(5)
|
|
for (var i = 0; i < 10; i ++) {
|
|
l.set(i.toString(), i.toString(2))
|
|
}
|
|
|
|
var i = 0
|
|
l.forEach(function (val, key, cache) {
|
|
if (i > 0) {
|
|
cache.del(key)
|
|
}
|
|
i += 1
|
|
})
|
|
|
|
t.equal(i, 5)
|
|
t.equal(l.keys().length, 1)
|
|
|
|
t.end()
|
|
})
|
|
|
|
test('all stale entries are removed', function(t) {
|
|
var l = new LRU({ max: 5, maxAge: -5, stale: true })
|
|
for (var i = 0; i < 10; i ++) {
|
|
l.set(i.toString(), i.toString(2))
|
|
}
|
|
|
|
var i = 0
|
|
l.forEach(function () {
|
|
i += 1
|
|
})
|
|
|
|
t.equal(i, 5)
|
|
t.equal(l.keys().length, 0)
|
|
|
|
t.end()
|
|
})
|
|
|
|
test('expires', function (t) {
|
|
var l = new LRU({
|
|
max: 10,
|
|
maxAge: 50
|
|
})
|
|
for (var i = 0; i < 10; i++) {
|
|
l.set(i.toString(), i.toString(2), ((i % 2) ? 25 : undefined))
|
|
}
|
|
|
|
var i = 0
|
|
var order = [ 8, 6, 4, 2, 0 ]
|
|
setTimeout(function () {
|
|
l.forEach(function (val, key, cache) {
|
|
var j = order[i++]
|
|
t.equal(cache, l)
|
|
t.equal(key, j.toString())
|
|
t.equal(val, j.toString(2))
|
|
})
|
|
t.equal(i, order.length);
|
|
|
|
setTimeout(function () {
|
|
var count = 0;
|
|
l.forEach(function (val, key, cache) { count++; })
|
|
t.equal(0, count);
|
|
t.end()
|
|
}, 25)
|
|
|
|
}, 26)
|
|
})
|