SEBA-688 add additional unit tests

Change-Id: I361bc872af08b97bccb29f17838940205fed48e9
diff --git a/commands/completion.go b/commands/completion.go
index 67c7ad3..65c4883 100644
--- a/commands/completion.go
+++ b/commands/completion.go
@@ -32,6 +32,6 @@
 }
 
 func (options *BashOptions) Execute(args []string) error {
-	fmt.Println(completion.Bash)
+	fmt.Fprintln(OutputStream, completion.Bash)
 	return nil
 }