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) }