Add test for quiet

cli.go

@@ -32,6 +32,11 @@ var (
 	date    = "1961-02-13T20:06:35Z"
 )
 
+func setQuiet() error {
+	log.SetLevel(log.WarnLevel)
+	return nil
+}
+
 func newCli() *flags.Parser {
 	opts := cliOpts{
 		VersionFlag: func() error {
@@ -40,10 +45,7 @@ func newCli() *flags.Parser {
 				Message: fmt.Sprintf("version %s\ncommit %s\ndate %s\n", version, commit, date),
 			}
 		},
-		Quiet: func() error {
-			log.SetLevel(log.WarnLevel)
-			return nil
-		},
+		Quiet: setQuiet,
 	}
 	parser := flags.NewParser(&opts, flags.HelpFlag|flags.PassDoubleDash)
 	parser.LongDescription = "What would Henry Rollins do?"

cli_test.go

@@ -46,6 +46,17 @@ func TestCliListSuccess(t *testing.T) {
 	}
 }
 
+func TestCliQuiet(t *testing.T) {
+	initial := log.GetLevel()
+	defer log.SetLevel(initial)
+
+	err := setQuiet()
+	assert.NoError(t, err)
+
+	after := log.GetLevel()
+	assert.Equal(t, log.WarnLevel, after)
+}
+
 func TestCliCheck(t *testing.T) {
 	parser := newCli()
 	var out = &bytes.Buffer{}