diff --git a/check/check_test.go b/check/check_test.go
new file mode 100644
index 0000000..1a7be8a
--- /dev/null
+++ b/check/check_test.go
@@ -0,0 +1,16 @@
+package check
+
+import (
+	"testing"
+)
+
+func TestRun(t *testing.T) {
+	cr, err := Run("testrepo")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if cr.Issues != 2 {
+		t.Errorf("got cr.Issues = %d, want %d", cr.Issues, 2)
+	}
+}
diff --git a/check/testrepo/a.go b/check/testrepo/a.go
new file mode 100644
index 0000000..a3fc55f
--- /dev/null
+++ b/check/testrepo/a.go
@@ -0,0 +1,8 @@
+package main
+
+import "fmt"
+
+    func main() {
+	// obivous typo
+	fmt.Println("invalid %s")
+}