diff --git a/context_test.go b/context_test.go
new file mode 100644
index 00000000..f66b3085
--- /dev/null
+++ b/context_test.go
@@ -0,0 +1,19 @@
+package core_test
+
+import (
+	"context"
+	"testing"
+
+	. "v2ray.com/core"
+)
+
+func TestContextPanic(t *testing.T) {
+	defer func() {
+		r := recover()
+		if r == nil {
+			t.Error("expect panic, but nil")
+		}
+	}()
+
+	MustFromContext(context.Background())
+}