add ssh override test

builder/vmware/common/ssh_test.go

@@ -0,0 +1,28 @@
+package common
+
+import (
+	"testing"
+
+	"github.com/hashicorp/packer/helper/communicator"
+)
+
+func TestCommHost(t *testing.T) {
+	state := testState(t)
+	config := SSHConfig{
+		Comm: communicator.Config{
+			SSH: communicator.SSH{
+				SSHHost: "127.0.0.1",
+			},
+		},
+	}
+
+	hostFunc := CommHost(&config)
+	out, err := hostFunc(state)
+	if err != nil {
+		t.Fatalf("Should not have had an error")
+	}
+
+	if out != "127.0.0.1" {
+		t.Fatalf("Should have respected ssh override.")
+	}
+}