package cli import ( "fmt" "os" "reflect" "runtime" "strings" "testing" "time" ) var boolFlagTests = []struct { name string expected string }{ {"help", "--help\t"}, {"h", "-h\t"}, } func TestBoolFlagHelpOutput(t *testing.T) { for _, test := range boolFlagTests { flag := &BoolFlag{Name: test.name} output := flag.String() if output != test.expected { t.Errorf("%q does not match %q", output, test.expected) } } } var stringFlagTests = []struct { name string aliases []string usage string value string expected string }{ {"foo", nil, "", "", "--foo value\t"}, {"f", nil, "", "", "-f value\t"}, {"f", nil, "The total `foo` desired", "all", "-f foo\tThe total foo desired (default: \"all\")"}, {"test", nil, "", "Something", "--test value\t(default: \"Something\")"}, {"config", []string{"c"}, "Load configuration from `FILE`", "", "--config FILE, -c FILE\tLoad configuration from FILE"}, {"config", []string{"c"}, "Load configuration from `CONFIG`", "config.json", "--config CONFIG, -c CONFIG\tLoad configuration from CONFIG (default: \"config.json\")"}, } func TestStringFlagHelpOutput(t *testing.T) { for _, test := range stringFlagTests { flag := &StringFlag{Name: test.name, Aliases: test.aliases, Usage: test.usage, Value: test.value} output := flag.String() if output != test.expected { t.Errorf("%q does not match %q", output, test.expected) } } } func TestStringFlagWithEnvVarHelpOutput(t *testing.T) { os.Clearenv() os.Setenv("APP_FOO", "derp") for _, test := range stringFlagTests { flag := &StringFlag{Name: test.name, Aliases: test.aliases, Value: test.value, EnvVars: []string{"APP_FOO"}} output := flag.String() expectedSuffix := " [$APP_FOO]" if runtime.GOOS == "windows" { expectedSuffix = " [%APP_FOO%]" } if !strings.HasSuffix(output, expectedSuffix) { t.Errorf("%s does not end with"+expectedSuffix, output) } } } var stringSliceFlagTests = []struct { name string aliases []string value *StringSlice expected string }{ {"foo", nil, NewStringSlice(""), "--foo value\t"}, {"f", nil, NewStringSlice(""), "-f value\t"}, {"f", nil, NewStringSlice("Lipstick"), "-f value\t(default: \"Lipstick\")"}, {"test", nil, NewStringSlice("Something"), "--test value\t(default: \"Something\")"}, {"dee", []string{"d"}, NewStringSlice("Inka", "Dinka", "dooo"), "--dee value, -d value\t(default: \"Inka\", \"Dinka\", \"dooo\")"}, } func TestStringSliceFlagHelpOutput(t *testing.T) { for _, test := range stringSliceFlagTests { flag := &StringSliceFlag{Name: test.name, Aliases: test.aliases, Value: test.value} output := flag.String() if output != test.expected { t.Errorf("%q does not match %q", output, test.expected) } } } func TestStringSliceFlagWithEnvVarHelpOutput(t *testing.T) { os.Clearenv() os.Setenv("APP_QWWX", "11,4") for _, test := range stringSliceFlagTests { flag := &StringSliceFlag{Name: test.name, Aliases: test.aliases, Value: test.value, EnvVars: []string{"APP_QWWX"}} output := flag.String() expectedSuffix := " [$APP_QWWX]" if runtime.GOOS == "windows" { expectedSuffix = " [%APP_QWWX%]" } if !strings.HasSuffix(output, expectedSuffix) { t.Errorf("%q does not end with"+expectedSuffix, output) } } } var intFlagTests = []struct { name string expected string }{ {"hats", "--hats value\t(default: 9)"}, {"H", "-H value\t(default: 9)"}, } func TestIntFlagHelpOutput(t *testing.T) { for _, test := range intFlagTests { flag := &IntFlag{Name: test.name, Value: 9} output := flag.String() if output != test.expected { t.Errorf("%s does not match %s", output, test.expected) } } } func TestIntFlagWithEnvVarHelpOutput(t *testing.T) { os.Clearenv() os.Setenv("APP_BAR", "2") for _, test := range intFlagTests { flag := &IntFlag{Name: test.name, EnvVars: []string{"APP_BAR"}} output := flag.String() expectedSuffix := " [$APP_BAR]" if runtime.GOOS == "windows" { expectedSuffix = " [%APP_BAR%]" } if !strings.HasSuffix(output, expectedSuffix) { t.Errorf("%s does not end with"+expectedSuffix, output) } } } var durationFlagTests = []struct { name string expected string }{ {"hooting", "--hooting value\t(default: 1s)"}, {"H", "-H value\t(default: 1s)"}, } func TestDurationFlagHelpOutput(t *testing.T) { for _, test := range durationFlagTests { flag := &DurationFlag{Name: test.name, Value: 1 * time.Second} output := flag.String() if output != test.expected { t.Errorf("%q does not match %q", output, test.expected) } } } func TestDurationFlagWithEnvVarHelpOutput(t *testing.T) { os.Clearenv() os.Setenv("APP_BAR", "2h3m6s") for _, test := range durationFlagTests { flag := &DurationFlag{Name: test.name, EnvVars: []string{"APP_BAR"}} output := flag.String() expectedSuffix := " [$APP_BAR]" if runtime.GOOS == "windows" { expectedSuffix = " [%APP_BAR%]" } if !strings.HasSuffix(output, expectedSuffix) { t.Errorf("%s does not end with"+expectedSuffix, output) } } } var intSliceFlagTests = []struct { name string aliases []string value *IntSlice expected string }{ {"heads", nil, NewIntSlice(), "--heads value\t"}, {"H", nil, NewIntSlice(), "-H value\t"}, {"H", []string{"heads"}, NewIntSlice(9, 3), "-H value, --heads value\t(default: 9, 3)"}, } func TestIntSliceFlagHelpOutput(t *testing.T) { for _, test := range intSliceFlagTests { flag := &IntSliceFlag{Name: test.name, Aliases: test.aliases, Value: test.value} output := flag.String() if output != test.expected { t.Errorf("%q does not match %q", output, test.expected) } } } func TestIntSliceFlagWithEnvVarHelpOutput(t *testing.T) { os.Clearenv() os.Setenv("APP_SMURF", "42,3") for _, test := range intSliceFlagTests { flag := &IntSliceFlag{Name: test.name, Aliases: test.aliases, Value: test.value, EnvVars: []string{"APP_SMURF"}} output := flag.String() expectedSuffix := " [$APP_SMURF]" if runtime.GOOS == "windows" { expectedSuffix = " [%APP_SMURF%]" } if !strings.HasSuffix(output, expectedSuffix) { t.Errorf("%q does not end with"+expectedSuffix, output) } } } var float64FlagTests = []struct { name string expected string }{ {"hooting", "--hooting value\t(default: 0.1)"}, {"H", "-H value\t(default: 0.1)"}, } func TestFloat64FlagHelpOutput(t *testing.T) { for _, test := range float64FlagTests { flag := &Float64Flag{Name: test.name, Value: float64(0.1)} output := flag.String() if output != test.expected { t.Errorf("%q does not match %q", output, test.expected) } } } func TestFloat64FlagWithEnvVarHelpOutput(t *testing.T) { os.Clearenv() os.Setenv("APP_BAZ", "99.4") for _, test := range float64FlagTests { flag := &Float64Flag{Name: test.name, EnvVars: []string{"APP_BAZ"}} output := flag.String() expectedSuffix := " [$APP_BAZ]" if runtime.GOOS == "windows" { expectedSuffix = " [%APP_BAZ%]" } if !strings.HasSuffix(output, expectedSuffix) { t.Errorf("%s does not end with"+expectedSuffix, output) } } } var genericFlagTests = []struct { name string value Generic expected string }{ {"toads", &Parser{"abc", "def"}, "--toads value\ttest flag (default: abc,def)"}, {"t", &Parser{"abc", "def"}, "-t value\ttest flag (default: abc,def)"}, } func TestGenericFlagHelpOutput(t *testing.T) { for _, test := range genericFlagTests { flag := &GenericFlag{Name: test.name, Value: test.value, Usage: "test flag"} output := flag.String() if output != test.expected { t.Errorf("%q does not match %q", output, test.expected) } } } func TestGenericFlagWithEnvVarHelpOutput(t *testing.T) { os.Clearenv() os.Setenv("APP_ZAP", "3") for _, test := range genericFlagTests { flag := &GenericFlag{Name: test.name, EnvVars: []string{"APP_ZAP"}} output := flag.String() expectedSuffix := " [$APP_ZAP]" if runtime.GOOS == "windows" { expectedSuffix = " [%APP_ZAP%]" } if !strings.HasSuffix(output, expectedSuffix) { t.Errorf("%s does not end with"+expectedSuffix, output) } } } func TestParseMultiString(t *testing.T) { (&App{ Flags: []Flag{ &StringFlag{Name: "serve", Aliases: []string{"s"}}, }, Action: func(ctx *Context) error { if ctx.String("serve") != "10" { t.Errorf("main name not set") } if ctx.String("s") != "10" { t.Errorf("short name not set") } return nil }, }).Run([]string{"run", "-s", "10"}) } func TestParseDestinationString(t *testing.T) { var dest string a := App{ Flags: []Flag{ &StringFlag{ Name: "dest", Destination: &dest, }, }, Action: func(ctx *Context) error { if dest != "10" { t.Errorf("expected destination String 10") } return nil }, } a.Run([]string{"run", "--dest", "10"}) } func TestParseMultiStringFromEnv(t *testing.T) { os.Clearenv() os.Setenv("APP_COUNT", "20") (&App{ Flags: []Flag{ &StringFlag{Name: "count", Aliases: []string{"c"}, EnvVars: []string{"APP_COUNT"}}, }, Action: func(ctx *Context) error { if ctx.String("count") != "20" { t.Errorf("main name not set") } if ctx.String("c") != "20" { t.Errorf("short name not set") } return nil }, }).Run([]string{"run"}) } func TestParseMultiStringFromEnvCascade(t *testing.T) { os.Clearenv() os.Setenv("APP_COUNT", "20") (&App{ Flags: []Flag{ &StringFlag{Name: "count", Aliases: []string{"c"}, EnvVars: []string{"COMPAT_COUNT", "APP_COUNT"}}, }, Action: func(ctx *Context) error { if ctx.String("count") != "20" { t.Errorf("main name not set") } if ctx.String("c") != "20" { t.Errorf("short name not set") } return nil }, }).Run([]string{"run"}) } func TestParseMultiStringSlice(t *testing.T) { (&App{ Flags: []Flag{ &StringSliceFlag{Name: "serve", Aliases: []string{"s"}, Value: NewStringSlice()}, }, Action: func(ctx *Context) error { expected := []string{"10", "20"} if !reflect.DeepEqual(ctx.StringSlice("serve"), expected) { t.Errorf("main name not set: %v != %v", expected, ctx.StringSlice("serve")) } if !reflect.DeepEqual(ctx.StringSlice("s"), expected) { t.Errorf("short name not set: %v != %v", expected, ctx.StringSlice("s")) } return nil }, }).Run([]string{"run", "-s", "10", "-s", "20"}) } func TestParseMultiStringSliceWithDefaults(t *testing.T) { (&App{ Flags: []Flag{ &StringSliceFlag{Name: "serve", Aliases: []string{"s"}, Value: NewStringSlice("9", "2")}, }, Action: func(ctx *Context) error { expected := []string{"10", "20"} if !reflect.DeepEqual(ctx.StringSlice("serve"), expected) { t.Errorf("main name not set: %v != %v", expected, ctx.StringSlice("serve")) } if !reflect.DeepEqual(ctx.StringSlice("s"), expected) { t.Errorf("short name not set: %v != %v", expected, ctx.StringSlice("s")) } return nil }, }).Run([]string{"run", "-s", "10", "-s", "20"}) } func TestParseMultiStringSliceWithDefaultsUnset(t *testing.T) { (&App{ Flags: []Flag{ &StringSliceFlag{Name: "serve", Aliases: []string{"s"}, Value: NewStringSlice("9", "2")}, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.StringSlice("serve"), []string{"9", "2"}) { t.Errorf("main name not set: %v", ctx.StringSlice("serve")) } if !reflect.DeepEqual(ctx.StringSlice("s"), []string{"9", "2"}) { t.Errorf("short name not set: %v", ctx.StringSlice("s")) } return nil }, }).Run([]string{"run"}) } func TestParseMultiStringSliceFromEnv(t *testing.T) { os.Clearenv() os.Setenv("APP_INTERVALS", "20,30,40") (&App{ Flags: []Flag{ &StringSliceFlag{Name: "intervals", Aliases: []string{"i"}, Value: NewStringSlice(), EnvVars: []string{"APP_INTERVALS"}}, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.StringSlice("intervals"), []string{"20", "30", "40"}) { t.Errorf("main name not set from env") } if !reflect.DeepEqual(ctx.StringSlice("i"), []string{"20", "30", "40"}) { t.Errorf("short name not set from env") } return nil }, }).Run([]string{"run"}) } func TestParseMultiStringSliceFromEnvWithDefaults(t *testing.T) { os.Clearenv() os.Setenv("APP_INTERVALS", "20,30,40") (&App{ Flags: []Flag{ &StringSliceFlag{Name: "intervals", Aliases: []string{"i"}, Value: NewStringSlice("1", "2", "5"), EnvVars: []string{"APP_INTERVALS"}}, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.StringSlice("intervals"), []string{"20", "30", "40"}) { t.Errorf("main name not set from env") } if !reflect.DeepEqual(ctx.StringSlice("i"), []string{"20", "30", "40"}) { t.Errorf("short name not set from env") } return nil }, }).Run([]string{"run"}) } func TestParseMultiStringSliceFromEnvCascade(t *testing.T) { os.Clearenv() os.Setenv("APP_INTERVALS", "20,30,40") (&App{ Flags: []Flag{ &StringSliceFlag{Name: "intervals", Aliases: []string{"i"}, Value: NewStringSlice(), EnvVars: []string{"COMPAT_INTERVALS", "APP_INTERVALS"}}, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.StringSlice("intervals"), []string{"20", "30", "40"}) { t.Errorf("main name not set from env") } if !reflect.DeepEqual(ctx.StringSlice("i"), []string{"20", "30", "40"}) { t.Errorf("short name not set from env") } return nil }, }).Run([]string{"run"}) } func TestParseMultiStringSliceFromEnvCascadeWithDefaults(t *testing.T) { os.Clearenv() os.Setenv("APP_INTERVALS", "20,30,40") (&App{ Flags: []Flag{ &StringSliceFlag{Name: "intervals", Aliases: []string{"i"}, Value: NewStringSlice("1", "2", "5"), EnvVars: []string{"COMPAT_INTERVALS", "APP_INTERVALS"}}, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.StringSlice("intervals"), []string{"20", "30", "40"}) { t.Errorf("main name not set from env") } if !reflect.DeepEqual(ctx.StringSlice("i"), []string{"20", "30", "40"}) { t.Errorf("short name not set from env") } return nil }, }).Run([]string{"run"}) } func TestParseMultiInt(t *testing.T) { a := App{ Flags: []Flag{ &IntFlag{Name: "serve", Aliases: []string{"s"}}, }, Action: func(ctx *Context) error { if ctx.Int("serve") != 10 { t.Errorf("main name not set") } if ctx.Int("s") != 10 { t.Errorf("short name not set") } return nil }, } a.Run([]string{"run", "-s", "10"}) } func TestParseDestinationInt(t *testing.T) { var dest int a := App{ Flags: []Flag{ &IntFlag{ Name: "dest", Destination: &dest, }, }, Action: func(ctx *Context) error { if dest != 10 { t.Errorf("expected destination Int 10") } return nil }, } a.Run([]string{"run", "--dest", "10"}) } func TestParseMultiIntFromEnv(t *testing.T) { os.Clearenv() os.Setenv("APP_TIMEOUT_SECONDS", "10") a := App{ Flags: []Flag{ &IntFlag{Name: "timeout", Aliases: []string{"t"}, EnvVars: []string{"APP_TIMEOUT_SECONDS"}}, }, Action: func(ctx *Context) error { if ctx.Int("timeout") != 10 { t.Errorf("main name not set") } if ctx.Int("t") != 10 { t.Errorf("short name not set") } return nil }, } a.Run([]string{"run"}) } func TestParseMultiIntFromEnvCascade(t *testing.T) { os.Clearenv() os.Setenv("APP_TIMEOUT_SECONDS", "10") a := App{ Flags: []Flag{ &IntFlag{Name: "timeout", Aliases: []string{"t"}, EnvVars: []string{"COMPAT_TIMEOUT_SECONDS", "APP_TIMEOUT_SECONDS"}}, }, Action: func(ctx *Context) error { if ctx.Int("timeout") != 10 { t.Errorf("main name not set") } if ctx.Int("t") != 10 { t.Errorf("short name not set") } return nil }, } a.Run([]string{"run"}) } func TestParseMultiIntSlice(t *testing.T) { (&App{ Flags: []Flag{ &IntSliceFlag{Name: "serve", Aliases: []string{"s"}, Value: NewIntSlice()}, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.IntSlice("serve"), []int{10, 20}) { t.Errorf("main name not set") } if !reflect.DeepEqual(ctx.IntSlice("s"), []int{10, 20}) { t.Errorf("short name not set") } return nil }, }).Run([]string{"run", "-s", "10", "-s", "20"}) } func TestParseMultiIntSliceWithDefaults(t *testing.T) { (&App{ Flags: []Flag{ &IntSliceFlag{Name: "serve", Aliases: []string{"s"}, Value: NewIntSlice(9, 2)}, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.IntSlice("serve"), []int{10, 20}) { t.Errorf("main name not set") } if !reflect.DeepEqual(ctx.IntSlice("s"), []int{10, 20}) { t.Errorf("short name not set") } return nil }, }).Run([]string{"run", "-s", "10", "-s", "20"}) } func TestParseMultiIntSliceWithDefaultsUnset(t *testing.T) { (&App{ Flags: []Flag{ &IntSliceFlag{Name: "serve", Aliases: []string{"s"}, Value: NewIntSlice(9, 2)}, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.IntSlice("serve"), []int{9, 2}) { t.Errorf("main name not set") } if !reflect.DeepEqual(ctx.IntSlice("s"), []int{9, 2}) { t.Errorf("short name not set") } return nil }, }).Run([]string{"run"}) } func TestParseMultiIntSliceFromEnv(t *testing.T) { os.Clearenv() os.Setenv("APP_INTERVALS", "20,30,40") (&App{ Flags: []Flag{ &IntSliceFlag{Name: "intervals", Aliases: []string{"i"}, Value: NewIntSlice(), EnvVars: []string{"APP_INTERVALS"}}, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.IntSlice("intervals"), []int{20, 30, 40}) { t.Errorf("main name not set from env") } if !reflect.DeepEqual(ctx.IntSlice("i"), []int{20, 30, 40}) { t.Errorf("short name not set from env") } return nil }, }).Run([]string{"run"}) } func TestParseMultiIntSliceFromEnvWithDefaults(t *testing.T) { os.Clearenv() os.Setenv("APP_INTERVALS", "20,30,40") (&App{ Flags: []Flag{ &IntSliceFlag{Name: "intervals", Aliases: []string{"i"}, Value: NewIntSlice(1, 2, 5), EnvVars: []string{"APP_INTERVALS"}}, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.IntSlice("intervals"), []int{20, 30, 40}) { t.Errorf("main name not set from env") } if !reflect.DeepEqual(ctx.IntSlice("i"), []int{20, 30, 40}) { t.Errorf("short name not set from env") } return nil }, }).Run([]string{"run"}) } func TestParseMultiIntSliceFromEnvCascade(t *testing.T) { os.Clearenv() os.Setenv("APP_INTERVALS", "20,30,40") (&App{ Flags: []Flag{ &IntSliceFlag{Name: "intervals", Aliases: []string{"i"}, Value: NewIntSlice(), EnvVars: []string{"COMPAT_INTERVALS", "APP_INTERVALS"}}, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.IntSlice("intervals"), []int{20, 30, 40}) { t.Errorf("main name not set from env") } if !reflect.DeepEqual(ctx.IntSlice("i"), []int{20, 30, 40}) { t.Errorf("short name not set from env") } return nil }, }).Run([]string{"run"}) } func TestParseMultiFloat64(t *testing.T) { a := App{ Flags: []Flag{ &Float64Flag{Name: "serve", Aliases: []string{"s"}}, }, Action: func(ctx *Context) error { if ctx.Float64("serve") != 10.2 { t.Errorf("main name not set") } if ctx.Float64("s") != 10.2 { t.Errorf("short name not set") } return nil }, } a.Run([]string{"run", "-s", "10.2"}) } func TestParseDestinationFloat64(t *testing.T) { var dest float64 a := App{ Flags: []Flag{ &Float64Flag{ Name: "dest", Destination: &dest, }, }, Action: func(ctx *Context) error { if dest != 10.2 { t.Errorf("expected destination Float64 10.2") } return nil }, } a.Run([]string{"run", "--dest", "10.2"}) } func TestParseMultiFloat64FromEnv(t *testing.T) { os.Clearenv() os.Setenv("APP_TIMEOUT_SECONDS", "15.5") a := App{ Flags: []Flag{ &Float64Flag{Name: "timeout", Aliases: []string{"t"}, EnvVars: []string{"APP_TIMEOUT_SECONDS"}}, }, Action: func(ctx *Context) error { if ctx.Float64("timeout") != 15.5 { t.Errorf("main name not set") } if ctx.Float64("t") != 15.5 { t.Errorf("short name not set") } return nil }, } a.Run([]string{"run"}) } func TestParseMultiFloat64FromEnvCascade(t *testing.T) { os.Clearenv() os.Setenv("APP_TIMEOUT_SECONDS", "15.5") a := App{ Flags: []Flag{ &Float64Flag{Name: "timeout", Aliases: []string{"t"}, EnvVars: []string{"COMPAT_TIMEOUT_SECONDS", "APP_TIMEOUT_SECONDS"}}, }, Action: func(ctx *Context) error { if ctx.Float64("timeout") != 15.5 { t.Errorf("main name not set") } if ctx.Float64("t") != 15.5 { t.Errorf("short name not set") } return nil }, } a.Run([]string{"run"}) } func TestParseMultiBool(t *testing.T) { a := App{ Flags: []Flag{ &BoolFlag{Name: "serve", Aliases: []string{"s"}}, }, Action: func(ctx *Context) error { if ctx.Bool("serve") != true { t.Errorf("main name not set") } if ctx.Bool("s") != true { t.Errorf("short name not set") } return nil }, } a.Run([]string{"run", "--serve"}) } func TestParseDestinationBool(t *testing.T) { var dest bool a := App{ Flags: []Flag{ &BoolFlag{ Name: "dest", Destination: &dest, }, }, Action: func(ctx *Context) error { if dest != true { t.Errorf("expected destination Bool true") } return nil }, } a.Run([]string{"run", "--dest"}) } func TestParseMultiBoolFromEnv(t *testing.T) { os.Clearenv() os.Setenv("APP_DEBUG", "1") a := App{ Flags: []Flag{ &BoolFlag{Name: "debug", Aliases: []string{"d"}, EnvVars: []string{"APP_DEBUG"}}, }, Action: func(ctx *Context) error { if ctx.Bool("debug") != true { t.Errorf("main name not set from env") } if ctx.Bool("d") != true { t.Errorf("short name not set from env") } return nil }, } a.Run([]string{"run"}) } func TestParseMultiBoolFromEnvCascade(t *testing.T) { os.Clearenv() os.Setenv("APP_DEBUG", "1") a := App{ Flags: []Flag{ &BoolFlag{Name: "debug", Aliases: []string{"d"}, EnvVars: []string{"COMPAT_DEBUG", "APP_DEBUG"}}, }, Action: func(ctx *Context) error { if ctx.Bool("debug") != true { t.Errorf("main name not set from env") } if ctx.Bool("d") != true { t.Errorf("short name not set from env") } return nil }, } a.Run([]string{"run"}) } func TestParseMultiBoolTrue(t *testing.T) { a := App{ Flags: []Flag{ &BoolFlag{Name: "implode", Aliases: []string{"i"}, Value: true}, }, Action: func(ctx *Context) error { if ctx.Bool("implode") { t.Errorf("main name not set") } if ctx.Bool("i") { t.Errorf("short name not set") } return nil }, } a.Run([]string{"run", "--implode=false"}) } func TestParseDestinationBoolTrue(t *testing.T) { dest := true a := App{ Flags: []Flag{ &BoolFlag{ Name: "dest", Value: true, Destination: &dest, }, }, Action: func(ctx *Context) error { if dest { t.Errorf("expected destination Bool false") } return nil }, } a.Run([]string{"run", "--dest=false"}) } func TestParseMultiBoolTrueFromEnv(t *testing.T) { os.Clearenv() os.Setenv("APP_DEBUG", "0") a := App{ Flags: []Flag{ &BoolFlag{ Name: "debug", Aliases: []string{"d"}, Value: true, EnvVars: []string{"APP_DEBUG"}, }, }, Action: func(ctx *Context) error { if ctx.Bool("debug") { t.Errorf("main name not set from env") } if ctx.Bool("d") { t.Errorf("short name not set from env") } return nil }, } a.Run([]string{"run"}) } func TestParseMultiBoolTrueFromEnvCascade(t *testing.T) { os.Clearenv() os.Setenv("APP_DEBUG", "0") a := App{ Flags: []Flag{ &BoolFlag{ Name: "debug", Aliases: []string{"d"}, Value: true, EnvVars: []string{"COMPAT_DEBUG", "APP_DEBUG"}, }, }, Action: func(ctx *Context) error { if ctx.Bool("debug") { t.Errorf("main name not set from env") } if ctx.Bool("d") { t.Errorf("short name not set from env") } return nil }, } a.Run([]string{"run"}) } type Parser [2]string func (p *Parser) Set(value string) error { parts := strings.Split(value, ",") if len(parts) != 2 { return fmt.Errorf("invalid format") } (*p)[0] = parts[0] (*p)[1] = parts[1] return nil } func (p *Parser) String() string { return fmt.Sprintf("%s,%s", p[0], p[1]) } func TestParseGeneric(t *testing.T) { a := App{ Flags: []Flag{ &GenericFlag{Name: "serve", Aliases: []string{"s"}, Value: &Parser{}}, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.Generic("serve"), &Parser{"10", "20"}) { t.Errorf("main name not set") } if !reflect.DeepEqual(ctx.Generic("s"), &Parser{"10", "20"}) { t.Errorf("short name not set") } return nil }, } a.Run([]string{"run", "-s", "10,20"}) } func TestParseGenericFromEnv(t *testing.T) { os.Clearenv() os.Setenv("APP_SERVE", "20,30") a := App{ Flags: []Flag{ &GenericFlag{ Name: "serve", Aliases: []string{"s"}, Value: &Parser{}, EnvVars: []string{"APP_SERVE"}, }, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.Generic("serve"), &Parser{"20", "30"}) { t.Errorf("main name not set from env") } if !reflect.DeepEqual(ctx.Generic("s"), &Parser{"20", "30"}) { t.Errorf("short name not set from env") } return nil }, } a.Run([]string{"run"}) } func TestParseGenericFromEnvCascade(t *testing.T) { os.Clearenv() os.Setenv("APP_FOO", "99,2000") a := App{ Flags: []Flag{ &GenericFlag{ Name: "foos", Value: &Parser{}, EnvVars: []string{"COMPAT_FOO", "APP_FOO"}, }, }, Action: func(ctx *Context) error { if !reflect.DeepEqual(ctx.Generic("foos"), &Parser{"99", "2000"}) { t.Errorf("value not set from env") } return nil }, } a.Run([]string{"run"}) } func TestStringSlice_Serialized_Set(t *testing.T) { sl0 := NewStringSlice("a", "b") ser0 := sl0.Serialized() if len(ser0) < len(slPfx) { t.Fatalf("serialized shorter than expected: %q", ser0) } sl1 := NewStringSlice("c", "d") sl1.Set(ser0) if sl0.String() != sl1.String() { t.Fatalf("pre and post serialization do not match: %v != %v", sl0, sl1) } } func TestIntSlice_Serialized_Set(t *testing.T) { sl0 := NewIntSlice(1, 2) ser0 := sl0.Serialized() if len(ser0) < len(slPfx) { t.Fatalf("serialized shorter than expected: %q", ser0) } sl1 := NewIntSlice(3, 4) sl1.Set(ser0) if sl0.String() != sl1.String() { t.Fatalf("pre and post serialization do not match: %v != %v", sl0, sl1) } }