test: add examples for lrucache

algorithm/lrucache_test.go

@@ -0,0 +1,33 @@
+package algorithm
+
+import (
+	"testing"
+
+	"github.com/duke-git/lancet/v2/internal"
+)
+
+func TestLRUCache(t *testing.T) {
+	asssert := internal.NewAssert(t, "TestLRUCache")
+
+	cache := NewLRUCache[int, int](3)
+
+	cache.Put(1, 1)
+	cache.Put(2, 2)
+	cache.Put(3, 3)
+
+	asssert.Equal(3, cache.Len())
+
+	v, ok := cache.Get(1)
+	asssert.Equal(true, ok)
+	asssert.Equal(1, v)
+
+	v, ok = cache.Get(2)
+	asssert.Equal(true, ok)
+	asssert.Equal(2, v)
+
+	ok = cache.Delete(2)
+	asssert.Equal(true, ok)
+
+	_, ok = cache.Get(2)
+	asssert.Equal(false, ok)
+}