Add LRU cache

lru_test.go

@@ -0,0 +1,96 @@
+package cache
+
+import (
+	"testing"
+	"time"
+)
+
+func TestNew_LruURI(t *testing.T) {
+	cache, err := New("lru://")
+
+	if err != nil {
+		t.Fatal("Error creating cache:", err)
+	}
+
+	if _, ok := cache.(*LruCache); !ok {
+		t.Fatal("Cache is not instance of MemoryCache")
+	}
+}
+
+func TestLruCache_Get(t *testing.T) {
+	cache, err := New("lru://")
+
+	if err != nil {
+		t.Fatal("Error creating cache:", err)
+	}
+
+	obj := "test"
+
+	cache.Set("test", obj, time.Minute)
+
+	var new string
+
+	cache.Get("test", &new)
+
+	if obj != new {
+		t.Fatal("Expected", obj, "got", new)
+	}
+}
+
+func TestLruCache_GetRaw(t *testing.T) {
+	cache, err := New("lru://")
+
+	if err != nil {
+		t.Fatal("Error creating cache:", err)
+	}
+
+	obj := "test"
+
+	cache.Set("test", obj, time.Minute)
+
+	v, err := cache.Get("test")
+
+	if err != nil {
+		t.Fatal("Unable to get value:", err)
+	}
+
+	new := string(v)
+
+	if obj != new {
+		t.Fatal("Expected", obj, "got", new)
+	}
+}
+
+func TestLruCache_Has(t *testing.T) {
+	cache, err := New("lru://")
+
+	if err != nil {
+		t.Fatal("Error creating cache:", err)
+	}
+
+	cache.Set("test", "test", time.Minute)
+
+	if !cache.Has("test") {
+		t.Fatal("Expected cache to have object 'test'")
+	}
+}
+
+func TestLruCache_Del(t *testing.T) {
+	cache, err := New("lru://")
+
+	if err != nil {
+		t.Fatal("Error creating cache:", err)
+	}
+
+	cache.Set("test", "test", time.Minute)
+
+	if !cache.Has("test") {
+		t.Fatal("Expected cache to have object 'test'")
+	}
+
+	cache.Del("test")
+
+	if cache.Has("test") {
+		t.Fatal("Cache did not properly delete item")
+	}
+}