1 files changed, 21 insertions, 0 deletions
diff --git a/pid_test.go b/pid_test.go
new file mode 100644
index 0000000..2c92641
--- /dev/null
+++ b/pid_test.go
@@ -0,0 +1,21 @@
+package main
+
+import (
+	"syscall"
+	"testing"
+)
+
+const (
+	invalidPid = 345678
+)
+
+func TestPidRunning(t *testing.T) {
+	pid := syscall.Getpid()
+	if !pidRunning(pid) {
+		t.Errorf("pid %v is not running", pid)
+	}
+
+	if pidRunning(invalidPid) {
+		t.Errorf("pid %v is running", invalidPid)
+	}
+}