136 lines
4.2 KiB
Go
136 lines
4.2 KiB
Go
package ccache
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import (
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. "github.com/karlseguin/expect"
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"testing"
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"time"
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"strconv"
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)
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type LayeredCacheTests struct{}
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func Test_LayeredCache(t *testing.T) {
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Expectify(new(LayeredCacheTests), t)
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}
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func (l *LayeredCacheTests) GetsANonExistantValue() {
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cache := newLayered()
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Expect(cache.Get("spice", "flow")).To.Equal(nil)
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}
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func (l *LayeredCacheTests) SetANewValue() {
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cache := newLayered()
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cache.Set("spice", "flow", "a value", time.Minute)
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Expect(cache.Get("spice", "flow").(string)).To.Equal("a value")
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Expect(cache.Get("spice", "stop")).To.Equal(nil)
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}
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func (l *LayeredCacheTests) SetsMultipleValueWithinTheSameLayer() {
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cache := newLayered()
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cache.Set("spice", "flow", "value-a", time.Minute)
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cache.Set("spice", "must", "value-b", time.Minute)
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cache.Set("leto", "sister", "ghanima", time.Minute)
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Expect(cache.Get("spice", "flow").(string)).To.Equal("value-a")
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Expect(cache.Get("spice", "must").(string)).To.Equal("value-b")
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Expect(cache.Get("spice", "worm")).To.Equal(nil)
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Expect(cache.Get("leto", "sister").(string)).To.Equal("ghanima")
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Expect(cache.Get("leto", "brother")).To.Equal(nil)
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Expect(cache.Get("baron", "friend")).To.Equal(nil)
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}
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func (l *LayeredCacheTests) DeletesAValue() {
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cache := newLayered()
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cache.Set("spice", "flow", "value-a", time.Minute)
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cache.Set("spice", "must", "value-b", time.Minute)
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cache.Set("leto", "sister", "ghanima", time.Minute)
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cache.Delete("spice", "flow")
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Expect(cache.Get("spice", "flow")).To.Equal(nil)
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Expect(cache.Get("spice", "must").(string)).To.Equal("value-b")
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Expect(cache.Get("spice", "worm")).To.Equal(nil)
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Expect(cache.Get("leto", "sister").(string)).To.Equal("ghanima")
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}
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func (l *LayeredCacheTests) DeletesALayer() {
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cache := newLayered()
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cache.Set("spice", "flow", "value-a", time.Minute)
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cache.Set("spice", "must", "value-b", time.Minute)
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cache.Set("leto", "sister", "ghanima", time.Minute)
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cache.DeleteAll("spice")
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Expect(cache.Get("spice", "flow")).To.Equal(nil)
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Expect(cache.Get("spice", "must")).To.Equal(nil)
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Expect(cache.Get("spice", "worm")).To.Equal(nil)
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Expect(cache.Get("leto", "sister").(string)).To.Equal("ghanima")
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}
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func (c *LayeredCacheTests) GCsTheOldestItems() {
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cache := Layered(Configure().ItemsToPrune(10))
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cache.Set("xx", "a", 23, time.Minute)
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for i := 0; i < 500; i++ {
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cache.Set(strconv.Itoa(i), "a", i, time.Minute)
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}
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cache.Set("xx", "b", 9001, time.Minute)
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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("xx", "a")).To.Equal(nil)
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Expect(cache.Get("xx", "b").(int)).To.Equal(9001)
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Expect(cache.Get("8", "a")).To.Equal(nil)
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Expect(cache.Get("9", "a")).To.Equal(9)
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Expect(cache.Get("10", "a").(int)).To.Equal(10)
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}
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func (c *LayeredCacheTests) PromotedItemsDontGetPruned() {
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cache := Layered(Configure().ItemsToPrune(10).GetsPerPromote(1))
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for i := 0; i < 500; i++ {
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cache.Set(strconv.Itoa(i), "a", 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", "a")
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time.Sleep(time.Millisecond * 10)
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cache.gc()
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Expect(cache.Get("9", "a").(int)).To.Equal(9)
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Expect(cache.Get("10", "a")).To.Equal(nil)
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Expect(cache.Get("11", "a").(int)).To.Equal(11)
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}
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func (c *LayeredCacheTests) TrackerDoesNotCleanupHeldInstance() {
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cache := Layered(Configure().ItemsToPrune(10).Track())
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for i := 0; i < 10; i++ {
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cache.Set(strconv.Itoa(i), "a", i, time.Minute)
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}
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item := cache.TrackingGet("0", "a")
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time.Sleep(time.Millisecond * 10)
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cache.gc()
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Expect(cache.Get("0", "a").(int)).To.Equal(0)
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Expect(cache.Get("1", "a")).To.Equal(nil)
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item.Release()
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cache.gc()
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Expect(cache.Get("0", "a")).To.Equal(nil)
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}
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func (c *LayeredCacheTests) RemovesOldestItemWhenFull() {
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cache := Layered(Configure().MaxItems(5).ItemsToPrune(1))
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cache.Set("xx", "a", 23, time.Minute)
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for i := 0; i < 7; i++ {
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cache.Set(strconv.Itoa(i), "a", i, time.Minute)
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}
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cache.Set("xx", "b", 9001, time.Minute)
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time.Sleep(time.Millisecond * 10)
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Expect(cache.Get("xx", "a")).To.Equal(nil)
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Expect(cache.Get("0", "a")).To.Equal(nil)
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Expect(cache.Get("1", "a")).To.Equal(nil)
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Expect(cache.Get("2", "a")).To.Equal(nil)
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Expect(cache.Get("3", "a")).To.Equal(3)
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Expect(cache.Get("xx", "b")).To.Equal(9001)
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}
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func newLayered() *LayeredCache {
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return Layered(Configure())
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}
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