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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())
}
}
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