diff --git a/main.go b/main.go
deleted file mode 100644
index 0e1e693..0000000
--- a/main.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package calc
-
-import (
-	"fmt"
-	_ "git.sre.ink/go/calc" // 使用自定义包
-)
-
-func main() {
-	sum := calc.Add(10, 2)
-	fmt.Println(sum)
-}
diff --git a/tests/calc_test.go b/tests/calc_test.go
new file mode 100644
index 0000000..8e8e6c2
--- /dev/null
+++ b/tests/calc_test.go
@@ -0,0 +1,12 @@
+package tests
+
+import (
+	"fmt"
+	"git.sre.ink/go/calc"
+	"testing"
+)
+
+func TestPKG(t *testing.T) {
+	sum := calc.Add(10, 2)
+	fmt.Println(sum)
+}