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shrine-medco/shrine-webclient/src/main/html/node_modules/lru-cache/test/serialize.js
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serialize.js
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var test = require('tap').test
var LRU = require('../')
test('dump', function (t) {
var cache = new LRU()
t.equal(cache.dump().length, 0, "nothing in dump for empty cache")
cache.set("a", "A")
cache.set("b", "B")
t.deepEqual(cache.dump(), [
{ k: "b", v: "B", e: 0 },
{ k: "a", v: "A", e: 0 }
])
cache.set("a", "A");
t.deepEqual(cache.dump(), [
{ k: "a", v: "A", e: 0 },
{ k: "b", v: "B", e: 0 }
])
cache.get("b");
t.deepEqual(cache.dump(), [
{ k: "b", v: "B", e: 0 },
{ k: "a", v: "A", e: 0 }
])
cache.del("a");
t.deepEqual(cache.dump(), [
{ k: "b", v: "B", e: 0 }
])
t.end()
})
test("do not dump stale items", function(t) {
var cache = new LRU({
max: 5,
maxAge: 50
})
//expires at 50
cache.set("a", "A")
setTimeout(function () {
//expires at 75
cache.set("b", "B")
var s = cache.dump()
t.equal(s.length, 2)
t.equal(s[0].k, "b")
t.equal(s[1].k, "a")
}, 25)
setTimeout(function () {
//expires at 110
cache.set("c", "C")
var s = cache.dump()
t.equal(s.length, 2)
t.equal(s[0].k, "c")
t.equal(s[1].k, "b")
}, 60)
setTimeout(function () {
//expires at 130
cache.set("d", "D", 40)
var s = cache.dump()
t.equal(s.length, 2)
t.equal(s[0].k, "d")
t.equal(s[1].k, "c")
}, 90)
setTimeout(function () {
var s = cache.dump()
t.equal(s.length, 1)
t.equal(s[0].k, "d")
}, 120)
setTimeout(function () {
var s = cache.dump()
t.deepEqual(s, [])
t.end()
}, 155)
})
test("load basic cache", function(t) {
var cache = new LRU(),
copy = new LRU()
cache.set("a", "A")
cache.set("b", "B")
copy.load(cache.dump())
t.deepEquals(cache.dump(), copy.dump())
t.end()
})
test("load staled cache", function(t) {
var cache = new LRU({maxAge: 50}),
copy = new LRU({maxAge: 50}),
arr
//expires at 50
cache.set("a", "A")
setTimeout(function () {
//expires at 80
cache.set("b", "B")
arr = cache.dump()
t.equal(arr.length, 2)
}, 30)
setTimeout(function () {
copy.load(arr)
t.equal(copy.get("a"), undefined)
t.equal(copy.get("b"), "B")
}, 60)
setTimeout(function () {
t.equal(copy.get("b"), undefined)
t.end()
}, 90)
})
test("load to other size cache", function(t) {
var cache = new LRU({max: 2}),
copy = new LRU({max: 1})
cache.set("a", "A")
cache.set("b", "B")
copy.load(cache.dump())
t.equal(copy.get("a"), undefined)
t.equal(copy.get("b"), "B")
//update the last read from original cache
cache.get("a")
copy.load(cache.dump())
t.equal(copy.get("a"), "A")
t.equal(copy.get("b"), undefined)
t.end()
})
test("load to other age cache", function(t) {
var cache = new LRU({maxAge: 50}),
aged = new LRU({maxAge: 100}),
simple = new LRU(),
arr,
expired
//created at 0
//a would be valid till 0 + 50
cache.set("a", "A")
setTimeout(function () {
//created at 20
//b would be valid till 20 + 50
cache.set("b", "B")
//b would be valid till 20 + 70
cache.set("c", "C", 70)
arr = cache.dump()
t.equal(arr.length, 3)
}, 20)
setTimeout(function () {
t.equal(cache.get("a"), undefined)
t.equal(cache.get("b"), "B")
t.equal(cache.get("c"), "C")
aged.load(arr)
t.equal(aged.get("a"), undefined)
t.equal(aged.get("b"), "B")
t.equal(aged.get("c"), "C")
simple.load(arr)
t.equal(simple.get("a"), undefined)
t.equal(simple.get("b"), "B")
t.equal(simple.get("c"), "C")
}, 60)
setTimeout(function () {
t.equal(cache.get("a"), undefined)
t.equal(cache.get("b"), undefined)
t.equal(cache.get("c"), "C")
aged.load(arr)
t.equal(aged.get("a"), undefined)
t.equal(aged.get("b"), undefined)
t.equal(aged.get("c"), "C")
simple.load(arr)
t.equal(simple.get("a"), undefined)
t.equal(simple.get("b"), undefined)
t.equal(simple.get("c"), "C")
}, 80)
setTimeout(function () {
t.equal(cache.get("a"), undefined)
t.equal(cache.get("b"), undefined)
t.equal(cache.get("c"), undefined)
aged.load(arr)
t.equal(aged.get("a"), undefined)
t.equal(aged.get("b"), undefined)
t.equal(aged.get("c"), undefined)
simple.load(arr)
t.equal(simple.get("a"), undefined)
t.equal(simple.get("b"), undefined)
t.equal(simple.get("c"), undefined)
t.end()
}, 100)
})
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