Adding sample test

app_test.go

@@ -35,9 +35,9 @@ func ExampleAppHelp() {
 	}
 	app.Commands = []cli.Command{
 		{
-			Name: "describeit",
-			ShortName: "d",
-			Usage: "use it to see a description",
+			Name:        "describeit",
+			ShortName:   "d",
+			Usage:       "use it to see a description",
 			Description: "This is how we describe describeit the function",
 			Action: func(c *cli.Context) {
 				fmt.Printf("i like to describe things")
@@ -58,6 +58,41 @@ func ExampleAppHelp() {
 	// OPTIONS:
 }
 
+func ExampleAppBashComplete() {
+	// set args for examples sake
+	os.Args = []string{"greet", "--generate-bash-completion"}
+
+	app := cli.NewApp()
+	app.Name = "greet"
+	app.EnableBashCompletion = true
+	app.Commands = []cli.Command{
+		{
+			Name:        "describeit",
+			ShortName:   "d",
+			Usage:       "use it to see a description",
+			Description: "This is how we describe describeit the function",
+			Action: func(c *cli.Context) {
+				fmt.Printf("i like to describe things")
+			},
+		}, {
+			Name:        "next",
+			Usage:       "next example",
+			Description: "more stuff to see when generating bash completion",
+			Action: func(c *cli.Context) {
+				fmt.Printf("the next example")
+			},
+		},
+	}
+
+	app.Run(os.Args)
+	// Output:
+	// describeit
+	// d
+	// next
+	// help
+	// h
+}
+
 func TestApp_Run(t *testing.T) {
 	s := ""