route/vendor/gopkg.in/alecthomas/kingpin.v2/flags_test.go

369 lines
9.3 KiB
Go

package kingpin
import (
"io/ioutil"
"os"
"github.com/alecthomas/assert"
"testing"
)
func TestBool(t *testing.T) {
app := newTestApp()
b := app.Flag("b", "").Bool()
_, err := app.Parse([]string{"--b"})
assert.NoError(t, err)
assert.True(t, *b)
}
func TestNoBool(t *testing.T) {
fg := newFlagGroup()
f := fg.Flag("b", "").Default("true")
b := f.Bool()
fg.init("")
tokens := tokenize([]string{"--no-b"}, false)
_, err := fg.parse(tokens)
assert.NoError(t, err)
assert.False(t, *b)
}
func TestNegateNonBool(t *testing.T) {
fg := newFlagGroup()
f := fg.Flag("b", "")
f.Int()
fg.init("")
tokens := tokenize([]string{"--no-b"}, false)
_, err := fg.parse(tokens)
assert.Error(t, err)
}
func TestNegativePrefixLongFlag(t *testing.T) {
fg := newFlagGroup()
f := fg.Flag("no-comment", "")
b := f.Bool()
fg.init("")
tokens := tokenize([]string{"--no-comment"}, false)
_, err := fg.parse(tokens)
assert.NoError(t, err)
assert.False(t, *b)
}
func TestInvalidFlagDefaultCanBeOverridden(t *testing.T) {
app := newTestApp()
app.Flag("a", "").Default("invalid").Bool()
_, err := app.Parse([]string{})
assert.Error(t, err)
}
func TestRequiredFlag(t *testing.T) {
app := newTestApp()
app.Version("0.0.0").Writer(ioutil.Discard)
exits := 0
app.Terminate(func(int) { exits++ })
app.Flag("a", "").Required().Bool()
_, err := app.Parse([]string{"--a"})
assert.NoError(t, err)
_, err = app.Parse([]string{})
assert.Error(t, err)
_, err = app.Parse([]string{"--version"})
assert.Equal(t, 1, exits)
}
func TestShortFlag(t *testing.T) {
app := newTestApp()
f := app.Flag("long", "").Short('s').Bool()
_, err := app.Parse([]string{"-s"})
assert.NoError(t, err)
assert.True(t, *f)
}
func TestUnicodeShortFlag(t *testing.T) {
app := newTestApp()
f := app.Flag("aaa", "").Short('ä').Bool()
_, err := app.Parse([]string{"-ä"})
assert.NoError(t, err)
assert.True(t, *f)
}
func TestCombinedShortFlags(t *testing.T) {
app := newTestApp()
a := app.Flag("short0", "").Short('0').Bool()
b := app.Flag("short1", "").Short('1').Bool()
c := app.Flag("short2", "").Short('2').Bool()
_, err := app.Parse([]string{"-01"})
assert.NoError(t, err)
assert.True(t, *a)
assert.True(t, *b)
assert.False(t, *c)
}
func TestCombinedUnicodeShortFlags(t *testing.T) {
app := newTestApp()
a := app.Flag("short0", "").Short('0').Bool()
b := app.Flag("short1", "").Short('1').Bool()
c := app.Flag("short2", "").Short('ä').Bool()
d := app.Flag("short3", "").Short('2').Bool()
_, err := app.Parse([]string{"-0ä1"})
assert.NoError(t, err)
assert.True(t, *a)
assert.True(t, *b)
assert.True(t, *c)
assert.False(t, *d)
}
func TestCombinedShortFlagArg(t *testing.T) {
a := newTestApp()
n := a.Flag("short", "").Short('s').Int()
_, err := a.Parse([]string{"-s10"})
assert.NoError(t, err)
assert.Equal(t, 10, *n)
}
func TestCombinedUnicodeShortFlagArg(t *testing.T) {
app := newTestApp()
a := app.Flag("short", "").Short('ä').Int()
_, err := app.Parse([]string{"-ä10"})
assert.NoError(t, err)
assert.Equal(t, 10, *a)
}
func TestCombinedUnicodeShortFlagUnicodeArg(t *testing.T) {
app := newTestApp()
a := app.Flag("short", "").Short('ä').String()
_, err := app.Parse([]string{"-äöö"})
assert.NoError(t, err)
assert.Equal(t, "öö", *a)
}
func TestEmptyShortFlagIsAnError(t *testing.T) {
_, err := newTestApp().Parse([]string{"-"})
assert.Error(t, err)
}
func TestRequiredWithEnvarMissingErrors(t *testing.T) {
app := newTestApp()
app.Flag("t", "").OverrideDefaultFromEnvar("TEST_ENVAR").Required().Int()
_, err := app.Parse([]string{})
assert.Error(t, err)
}
func TestRequiredWithEnvar(t *testing.T) {
os.Setenv("TEST_ENVAR", "123")
app := newTestApp()
flag := app.Flag("t", "").Envar("TEST_ENVAR").Required().Int()
_, err := app.Parse([]string{})
assert.NoError(t, err)
assert.Equal(t, 123, *flag)
}
func TestSubcommandFlagRequiredWithEnvar(t *testing.T) {
os.Setenv("TEST_ENVAR", "123")
app := newTestApp()
cmd := app.Command("command", "")
flag := cmd.Flag("t", "").Envar("TEST_ENVAR").Required().Int()
_, err := app.Parse([]string{"command"})
assert.NoError(t, err)
assert.Equal(t, 123, *flag)
}
func TestRegexp(t *testing.T) {
app := newTestApp()
flag := app.Flag("reg", "").Regexp()
_, err := app.Parse([]string{"--reg", "^abc$"})
assert.NoError(t, err)
assert.NotNil(t, *flag)
assert.Equal(t, "^abc$", (*flag).String())
assert.Regexp(t, *flag, "abc")
assert.NotRegexp(t, *flag, "abcd")
}
func TestDuplicateShortFlag(t *testing.T) {
app := newTestApp()
app.Flag("a", "").Short('a').String()
app.Flag("b", "").Short('a').String()
_, err := app.Parse([]string{})
assert.Error(t, err)
}
func TestDuplicateLongFlag(t *testing.T) {
app := newTestApp()
app.Flag("a", "").String()
app.Flag("a", "").String()
_, err := app.Parse([]string{})
assert.Error(t, err)
}
func TestGetFlagAndOverrideDefault(t *testing.T) {
app := newTestApp()
a := app.Flag("a", "").Default("default").String()
_, err := app.Parse([]string{})
assert.NoError(t, err)
assert.Equal(t, "default", *a)
app.GetFlag("a").Default("new")
_, err = app.Parse([]string{})
assert.NoError(t, err)
assert.Equal(t, "new", *a)
}
func TestEnvarOverrideDefault(t *testing.T) {
os.Setenv("TEST_ENVAR", "123")
app := newTestApp()
flag := app.Flag("t", "").Default("default").Envar("TEST_ENVAR").String()
_, err := app.Parse([]string{})
assert.NoError(t, err)
assert.Equal(t, "123", *flag)
}
func TestFlagMultipleValuesDefault(t *testing.T) {
app := newTestApp()
a := app.Flag("a", "").Default("default1", "default2").Strings()
_, err := app.Parse([]string{})
assert.NoError(t, err)
assert.Equal(t, []string{"default1", "default2"}, *a)
}
func TestFlagMultipleValuesDefaultNonRepeatable(t *testing.T) {
c := newTestApp()
c.Flag("foo", "foo").Default("a", "b").String()
_, err := c.Parse([]string{})
assert.Error(t, err)
}
func TestFlagMultipleValuesDefaultEnvarUnix(t *testing.T) {
app := newTestApp()
a := app.Flag("a", "").Envar("TEST_MULTIPLE_VALUES").Strings()
os.Setenv("TEST_MULTIPLE_VALUES", "123\n456\n")
_, err := app.Parse([]string{})
assert.NoError(t, err)
assert.Equal(t, []string{"123", "456"}, *a)
}
func TestFlagMultipleValuesDefaultEnvarWindows(t *testing.T) {
app := newTestApp()
a := app.Flag("a", "").Envar("TEST_MULTIPLE_VALUES").Strings()
os.Setenv("TEST_MULTIPLE_VALUES", "123\r\n456\r\n")
_, err := app.Parse([]string{})
assert.NoError(t, err)
assert.Equal(t, []string{"123", "456"}, *a)
}
func TestFlagMultipleValuesDefaultEnvarNonRepeatable(t *testing.T) {
c := newTestApp()
a := c.Flag("foo", "foo").Envar("TEST_MULTIPLE_VALUES_NON_REPEATABLE").String()
os.Setenv("TEST_MULTIPLE_VALUES_NON_REPEATABLE", "123\n456")
_, err := c.Parse([]string{})
assert.NoError(t, err)
assert.Equal(t, "123\n456", *a)
}
func TestFlagHintAction(t *testing.T) {
c := newTestApp()
action := func() []string {
return []string{"opt1", "opt2"}
}
a := c.Flag("foo", "foo").HintAction(action)
args := a.resolveCompletions()
assert.Equal(t, []string{"opt1", "opt2"}, args)
}
func TestFlagHintOptions(t *testing.T) {
c := newTestApp()
a := c.Flag("foo", "foo").HintOptions("opt1", "opt2")
args := a.resolveCompletions()
assert.Equal(t, []string{"opt1", "opt2"}, args)
}
func TestFlagEnumVar(t *testing.T) {
c := newTestApp()
var bar string
a := c.Flag("foo", "foo")
a.Enum("opt1", "opt2")
b := c.Flag("bar", "bar")
b.EnumVar(&bar, "opt3", "opt4")
args := a.resolveCompletions()
assert.Equal(t, []string{"opt1", "opt2"}, args)
args = b.resolveCompletions()
assert.Equal(t, []string{"opt3", "opt4"}, args)
}
func TestMultiHintOptions(t *testing.T) {
c := newTestApp()
a := c.Flag("foo", "foo").HintOptions("opt1").HintOptions("opt2")
args := a.resolveCompletions()
assert.Equal(t, []string{"opt1", "opt2"}, args)
}
func TestMultiHintActions(t *testing.T) {
c := newTestApp()
a := c.Flag("foo", "foo").
HintAction(func() []string {
return []string{"opt1"}
}).
HintAction(func() []string {
return []string{"opt2"}
})
args := a.resolveCompletions()
assert.Equal(t, []string{"opt1", "opt2"}, args)
}
func TestCombinationHintActionsOptions(t *testing.T) {
c := newTestApp()
a := c.Flag("foo", "foo").HintAction(func() []string {
return []string{"opt1"}
}).HintOptions("opt2")
args := a.resolveCompletions()
assert.Equal(t, []string{"opt1", "opt2"}, args)
}
func TestCombinationEnumActions(t *testing.T) {
c := newTestApp()
var foo string
a := c.Flag("foo", "foo").
HintAction(func() []string {
return []string{"opt1", "opt2"}
})
a.Enum("opt3", "opt4")
b := c.Flag("bar", "bar").
HintAction(func() []string {
return []string{"opt5", "opt6"}
})
b.EnumVar(&foo, "opt3", "opt4")
// Provided HintActions should override automatically generated Enum options.
args := a.resolveCompletions()
assert.Equal(t, []string{"opt1", "opt2"}, args)
args = b.resolveCompletions()
assert.Equal(t, []string{"opt5", "opt6"}, args)
}
func TestCombinationEnumOptions(t *testing.T) {
c := newTestApp()
var foo string
a := c.Flag("foo", "foo").HintOptions("opt1", "opt2")
a.Enum("opt3", "opt4")
b := c.Flag("bar", "bar").HintOptions("opt5", "opt6")
b.EnumVar(&foo, "opt3", "opt4")
// Provided HintOptions should override automatically generated Enum options.
args := a.resolveCompletions()
assert.Equal(t, []string{"opt1", "opt2"}, args)
args = b.resolveCompletions()
assert.Equal(t, []string{"opt5", "opt6"}, args)
}