chore: merge backend repo history into monorepo at backend/

git-subtree-dir: backend
git-subtree-mainline: dc11190527
git-subtree-split: acae976622

backend/internal/cache/ttl_cache_test.go

@@ -0,0 +1,62 @@
+package cache
+
+import (
+	"testing"
+	"time"
+)
+
+func TestTTLCache_SetGet(t *testing.T) {
+	c := New[string, int](time.Minute)
+	c.Set("a", 42)
+
+	v, ok := c.Get("a")
+	if !ok || v != 42 {
+		t.Fatalf("expected (42, true), got (%d, %v)", v, ok)
+	}
+}
+
+func TestTTLCache_MissingKey(t *testing.T) {
+	c := New[string, int](time.Minute)
+	if _, ok := c.Get("missing"); ok {
+		t.Fatal("expected miss for key that was never set")
+	}
+}
+
+func TestTTLCache_Expiry(t *testing.T) {
+	c := New[string, int](10 * time.Millisecond)
+	c.Set("a", 1)
+
+	if _, ok := c.Get("a"); !ok {
+		t.Fatal("expected hit immediately after Set")
+	}
+
+	time.Sleep(30 * time.Millisecond)
+
+	if _, ok := c.Get("a"); ok {
+		t.Fatal("expected miss after TTL expired")
+	}
+}
+
+func TestTTLCache_Delete(t *testing.T) {
+	c := New[string, int](time.Minute)
+	c.Set("a", 1)
+	c.Delete("a")
+
+	if _, ok := c.Get("a"); ok {
+		t.Fatal("expected miss after Delete")
+	}
+}
+
+func TestTTLCache_Clear(t *testing.T) {
+	c := New[string, int](time.Minute)
+	c.Set("a", 1)
+	c.Set("b", 2)
+	c.Clear()
+
+	if _, ok := c.Get("a"); ok {
+		t.Fatal("expected miss for 'a' after Clear")
+	}
+	if _, ok := c.Get("b"); ok {
+		t.Fatal("expected miss for 'b' after Clear")
+	}
+}