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package kingpin
import (
"bytes"
"io/ioutil"
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
func TestFormatTwoColumns(t *testing.T) {
buf := bytes.NewBuffer(nil)
formatTwoColumns(buf, 2, 2, 20, [][2]string{
{"--hello", "Hello world help with something that is cool."},
})
expected := ` --hello Hello
world
help with
something
that is
cool.
`
assert.Equal(t, expected, buf.String())
}
func TestRequiredSubcommandsUsage(t *testing.T) {
var buf bytes.Buffer
a := New("test", "Test").Writers(&buf, ioutil.Discard).Terminate(nil)
c0 := a.Command("c0", "c0info")
c0.Command("c1", "c1info")
_, err := a.Parse(nil)
assert.Error(t, err)
expectedStr := `
usage: test [<flags>] <command>
Test
Flags:
--help Show context-sensitive help.
Commands:
help [<command> ...]
Show help.
c0 c1
c1info
`
assert.Equal(t, expectedStr, buf.String())
}
func TestOptionalSubcommandsUsage(t *testing.T) {
var buf bytes.Buffer
a := New("test", "Test").Writers(&buf, ioutil.Discard).Terminate(nil)
c0 := a.Command("c0", "c0info").OptionalSubcommands()
c0.Command("c1", "c1info")
_, err := a.Parse(nil)
assert.Error(t, err)
expectedStr := `
usage: test [<flags>] <command>
Test
Flags:
--help Show context-sensitive help.
Commands:
help [<command> ...]
Show help.
c0
c0info
c0 c1
c1info
`
assert.Equal(t, expectedStr, buf.String())
}
func TestFormatTwoColumnsWide(t *testing.T) {
samples := [][2]string{
{strings.Repeat("x", 29), "29 chars"},
{strings.Repeat("x", 30), "30 chars"}}
buf := bytes.NewBuffer(nil)
formatTwoColumns(buf, 0, 0, 200, samples)
expected := `xxxxxxxxxxxxxxxxxxxxxxxxxxxxx29 chars
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
30 chars
`
assert.Equal(t, expected, buf.String())
}
func TestHiddenCommand(t *testing.T) {
templates := []struct{ name, template string }{
{"default", DefaultUsageTemplate},
{"Compact", CompactUsageTemplate},
{"Man", ManPageTemplate},
}
var buf bytes.Buffer
a := New("test", "Test").Writers(&buf, ioutil.Discard).Terminate(nil)
a.Command("visible", "visible")
a.Command("hidden", "hidden").Hidden()
for _, tp := range templates {
buf.Reset()
a.UsageTemplate(tp.template)
a.Parse(nil)
// a.Parse([]string{"--help"})
usage := buf.String()
t.Logf("Usage for %s is:\n%s\n", tp.name, usage)
assert.NotContains(t, usage, "hidden")
assert.Contains(t, usage, "visible")
}
}
func TestIssue169MultipleUsageCorruption(t *testing.T) {
buf := &bytes.Buffer{}
app := newTestApp()
cmd := app.Command("cmd", "")
cmd.Flag("flag", "").Default("false").Bool()
app.Writers(buf, ioutil.Discard)
_, err := app.Parse([]string{"help", "cmd"})
assert.NoError(t, err)
expected := buf.String()
buf.Reset()
_, err = app.Parse([]string{"help"})
assert.NoError(t, err)
actual := buf.String()
assert.NotEqual(t, expected, actual)
}
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