tests(integration): add check for systemd unit file droppings

Author: mboersma

tests/ps_test.go

@@ -3,7 +3,7 @@
 package tests
 
 import (
-	_ "fmt"
+	"os/exec"
 	"strings"
 	"testing"
 
@@ -47,6 +47,20 @@ func psScaleTest(t *testing.T, params *itutils.DeisTestConfig) {
 		cmd = strings.Replace(cmd, "web", "cmd", 1)
 	}
 	itutils.Execute(t, cmd, params, false, "")
+	// Regression test for https://github.com/deis/deis/pull/1347
+	// Ensure that systemd unitfile droppings are cleaned up.
+	sshCmd := exec.Command("ssh",
+		"-o", "StrictHostKeyChecking=no",
+		"-o", "UserKnownHostsFile=/dev/null",
+		"-o", "PasswordAuthentication=no",
+		"core@deis."+params.Domain, "ls")
+	out, err := sshCmd.Output()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if strings.Contains(string(out), ".service") {
+		t.Fatalf("systemd files left on filesystem: \n%s", out)
+	}
 }
 
 func TestPs(t *testing.T) {