77765a3f11
purges stale items. Combining these two changes, CCache can now be used to implement both of Varnish's grace and saint mode.
76 lines
2 KiB
Go
76 lines
2 KiB
Go
package ccache
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import (
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. "github.com/karlseguin/expect"
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"strconv"
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"testing"
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"time"
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)
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type CacheTests struct{}
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func Test_Cache(t *testing.T) {
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Expectify(new(CacheTests), t)
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}
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func (c *CacheTests) DeletesAValue() {
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cache := New(Configure())
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cache.Set("spice", "flow", time.Minute)
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cache.Set("worm", "sand", time.Minute)
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cache.Delete("spice")
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Expect(cache.Get("spice")).To.Equal(nil)
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Expect(cache.Get("worm").Value()).To.Equal("sand")
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}
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func (c *CacheTests) GCsTheOldestItems() {
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cache := New(Configure().ItemsToPrune(10))
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for i := 0; i < 500; i++ {
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cache.Set(strconv.Itoa(i), i, time.Minute)
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}
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//let the items get promoted (and added to our list)
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time.Sleep(time.Millisecond * 10)
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cache.gc()
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Expect(cache.Get("9")).To.Equal(nil)
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Expect(cache.Get("10").Value()).To.Equal(10)
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}
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func (c *CacheTests) PromotedItemsDontGetPruned() {
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cache := New(Configure().ItemsToPrune(10).GetsPerPromote(1))
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for i := 0; i < 500; i++ {
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cache.Set(strconv.Itoa(i), i, time.Minute)
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}
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time.Sleep(time.Millisecond * 10) //run the worker once to init the list
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cache.Get("9")
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time.Sleep(time.Millisecond * 10)
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cache.gc()
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Expect(cache.Get("9").Value()).To.Equal(9)
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Expect(cache.Get("10")).To.Equal(nil)
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Expect(cache.Get("11").Value()).To.Equal(11)
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}
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func (c *CacheTests) TrackerDoesNotCleanupHeldInstance() {
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cache := New(Configure().ItemsToPrune(10).Track())
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for i := 0; i < 10; i++ {
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cache.Set(strconv.Itoa(i), i, time.Minute)
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}
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item := cache.TrackingGet("0")
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time.Sleep(time.Millisecond * 10)
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cache.gc()
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Expect(cache.Get("0").Value()).To.Equal(0)
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Expect(cache.Get("1")).To.Equal(nil)
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item.Release()
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cache.gc()
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Expect(cache.Get("0")).To.Equal(nil)
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}
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func (c *CacheTests) RemovesOldestItemWhenFull() {
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cache := New(Configure().MaxItems(5).ItemsToPrune(1))
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for i := 0; i < 7; i++ {
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cache.Set(strconv.Itoa(i), i, time.Minute)
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}
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time.Sleep(time.Millisecond * 10)
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Expect(cache.Get("0")).To.Equal(nil)
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Expect(cache.Get("1")).To.Equal(nil)
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Expect(cache.Get("2").Value()).To.Equal(2)
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}
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