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package kingpin
import (
"bytes"
"strings"
"testing"
"text/template"
"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 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},
{"Long", LongHelpTemplate},
{"Man", ManPageTemplate},
}
var buf bytes.Buffer
t.Log("1")
a := New("test", "Test").Writer(&buf).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 TestUsageFuncs(t *testing.T) {
var buf bytes.Buffer
a := New("test", "Test").Writer(&buf).Terminate(nil)
tpl := `{{ add 2 1 }}`
a.UsageTemplate(tpl)
a.UsageFuncs(template.FuncMap{
"add": func(x, y int) int { return x + y },
})
a.Parse([]string{"--help"})
usage := buf.String()
assert.Equal(t, "3", usage)
}
func TestCmdClause_HelpLong(t *testing.T) {
var buf bytes.Buffer
tpl := `{{define "FormatUsage"}}{{.HelpLong}}{{end -}}
{{template "FormatUsage" .Context.SelectedCommand}}`
a := New("test", "Test").Writer(&buf).Terminate(nil)
a.UsageTemplate(tpl)
a.Command("command", "short help text").HelpLong("long help text")
a.Parse([]string{"command", "--help"})
usage := buf.String()
assert.Equal(t, "long help text", usage)
}
func TestArgEnvVar(t *testing.T) {
var buf bytes.Buffer
a := New("test", "Test").Writer(&buf).Terminate(nil)
a.Arg("arg", "Enable arg").Envar("ARG").String()
a.Flag("flag", "Enable flag").Envar("FLAG").String()
a.Parse([]string{"command", "--help"})
usage := buf.String()
assert.Contains(t, usage, "($ARG)")
assert.Contains(t, usage, "($FLAG)")
}