Help!

help_test.go

@@ -2,7 +2,6 @@ package kong
 
 import (
 	"bytes"
-	"fmt"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -10,11 +9,16 @@ import (
 
 func TestHelp(t *testing.T) {
 	var cli struct {
-		String string `kong:"help='A string flag.'"`
-		Bool   bool   `kong:"help='A bool flag.'"`
+		String string `help:"A string flag."`
+		Bool   bool   `help:"A bool flag with very long help that wraps a lot and is verbose and is really verbose."`
 
 		One struct {
-		} `kong:"cmd"`
+			Flag string `help:"Nested flag."`
+		} `cmd help:"A subcommand."`
+
+		Two struct {
+			Flag string `help:"Nested flag under two."`
+		} `cmd help:"Another subcommand."`
 	}
 	w := bytes.NewBuffer(nil)
 	exited := false
@@ -27,5 +31,34 @@ func TestHelp(t *testing.T) {
 	_, err := app.Parse([]string{"--help"})
 	require.NoError(t, err)
 	require.True(t, exited)
-	fmt.Println(w.String())
+	require.Equal(t, `usage: test-app [<flags>]
+
+A test app.
+
+Flags:
+  --help           Show context-sensitive help.
+  --string=STRING  A string flag.
+  --bool           A bool flag with very long help that wraps a lot and is
+                   verbose and is really verbose.
+
+Commands:
+  one [<flags>]
+    A subcommand.
+
+  two [<flags>]
+    Another subcommand.
+`, w.String())
+
+	exited = false
+	w.Truncate(0)
+	_, err = app.Parse([]string{"one", "--help"})
+	require.NoError(t, err)
+	require.True(t, exited)
+	require.Equal(t, `usage: test-app one [<flags>]
+
+A subcommand.
+
+Flags:
+  --flag=STRING  Nested flag.
+`, w.String())
 }