65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
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package lru_test
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import (
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"sandc/pkg/cache/memcache/policy/lru"
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"testing"
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)
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func TestSet(t *testing.T) {
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// set capacity is 1
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cache := lru.NewCache[string, int](lru.WithCapacity(1))
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cache.Set("foo", 1)
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if got := cache.Len(); got != 1 {
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t.Fatalf("invalid length: %d", got)
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}
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if got, ok := cache.Get("foo"); got != 1 || !ok {
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t.Fatalf("invalid value got %d, cachehit %v", got, ok)
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}
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// if over the cap
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cache.Set("bar", 2)
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if got := cache.Len(); got != 1 {
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t.Fatalf("invalid length: %d", got)
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}
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bar, ok := cache.Get("bar")
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if bar != 2 || !ok {
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t.Fatalf("invalid value bar %d, cachehit %v", bar, ok)
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}
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// checks deleted oldest
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if _, ok := cache.Get("foo"); ok {
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t.Fatalf("invalid delete oldest value foo %v", ok)
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}
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// valid: if over the cap but same key
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cache.Set("bar", 100)
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if got := cache.Len(); got != 1 {
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t.Fatalf("invalid length: %d", got)
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}
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bar, ok = cache.Get("bar")
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if bar != 100 || !ok {
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t.Fatalf("invalid replacing value bar %d, cachehit %v", bar, ok)
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}
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}
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func TestDelete(t *testing.T) {
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cache := lru.NewCache[string, int](lru.WithCapacity(1))
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cache.Set("foo", 1)
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if got := cache.Len(); got != 1 {
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t.Fatalf("invalid length: %d", got)
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}
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cache.Delete("foo2")
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if got := cache.Len(); got != 1 {
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t.Fatalf("invalid length after deleted does not exist key: %d", got)
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}
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cache.Delete("foo")
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if got := cache.Len(); got != 0 {
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t.Fatalf("invalid length after deleted: %d", got)
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}
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if _, ok := cache.Get("foo"); ok {
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t.Fatalf("invalid get after deleted %v", ok)
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}
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}
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