migrate to upstream libcompose in one and a half go

vendor/github.com/codegangsta/cli/help_test.go

@@ -0,0 +1,94 @@
+package cli
+
+import (
+	"bytes"
+	"testing"
+)
+
+func Test_ShowAppHelp_NoAuthor(t *testing.T) {
+	output := new(bytes.Buffer)
+	app := NewApp()
+	app.Writer = output
+
+	c := NewContext(app, nil, nil)
+
+	ShowAppHelp(c)
+
+	if bytes.Index(output.Bytes(), []byte("AUTHOR(S):")) != -1 {
+		t.Errorf("expected\n%snot to include %s", output.String(), "AUTHOR(S):")
+	}
+}
+
+func Test_ShowAppHelp_NoVersion(t *testing.T) {
+	output := new(bytes.Buffer)
+	app := NewApp()
+	app.Writer = output
+
+	app.Version = ""
+
+	c := NewContext(app, nil, nil)
+
+	ShowAppHelp(c)
+
+	if bytes.Index(output.Bytes(), []byte("VERSION:")) != -1 {
+		t.Errorf("expected\n%snot to include %s", output.String(), "VERSION:")
+	}
+}
+
+func Test_Help_Custom_Flags(t *testing.T) {
+	oldFlag := HelpFlag
+	defer func() {
+		HelpFlag = oldFlag
+	}()
+
+	HelpFlag = BoolFlag{
+		Name:  "help, x",
+		Usage: "show help",
+	}
+
+	app := App{
+		Flags: []Flag{
+			BoolFlag{Name: "foo, h"},
+		},
+		Action: func(ctx *Context) {
+			if ctx.Bool("h") != true {
+				t.Errorf("custom help flag not set")
+			}
+		},
+	}
+	output := new(bytes.Buffer)
+	app.Writer = output
+	app.Run([]string{"test", "-h"})
+	if output.Len() > 0 {
+		t.Errorf("unexpected output: %s", output.String())
+	}
+}
+
+func Test_Version_Custom_Flags(t *testing.T) {
+	oldFlag := VersionFlag
+	defer func() {
+		VersionFlag = oldFlag
+	}()
+
+	VersionFlag = BoolFlag{
+		Name:  "version, V",
+		Usage: "show version",
+	}
+
+	app := App{
+		Flags: []Flag{
+			BoolFlag{Name: "foo, v"},
+		},
+		Action: func(ctx *Context) {
+			if ctx.Bool("v") != true {
+				t.Errorf("custom version flag not set")
+			}
+		},
+	}
+	output := new(bytes.Buffer)
+	app.Writer = output
+	app.Run([]string{"test", "-v"})
+	if output.Len() > 0 {
+		t.Errorf("unexpected output: %s", output.String())
+	}
+}