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 usage string value string expected string }{ {"foo", "", "", "--foo value\t"}, {"f", "", "", "-f value\t"}, {"f", "The total `foo` desired", "all", "-f foo\tThe total foo desired (default: \"all\")"}, {"test", "", "Something", "--test value\t(default: \"Something\")"}, {"config,c", "Load configuration from `FILE`", "", "--config FILE, -c FILE\tLoad configuration from FILE"}, {"config,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, 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, Value: test.value, EnvVar: "APP_FOO"} output := flag.String() expectedSuffix := " [$APP_FOO]" if runtime.GOOS == "windows" { expectedSuffix = " [%APP_FOO%]" } if !strings.HasSuffix(output, expectedSuffix) { t.Errorf("%s does not end with"+expectedSuffix, output) } } } var stringSliceFlagTests = []struct { name string value *StringSlice expected string }{ {"foo", NewStringSlice(""), "--foo value\t"}, {"f", NewStringSlice(""), "-f value\t"}, {"f", NewStringSlice("Lipstick"), "-f value\t(default: \"Lipstick\")"}, {"test", NewStringSlice("Something"), "--test value\t(default: \"Something\")"}, {"d, dee", NewStringSlice("Inka", "Dinka", "dooo"), "-d value, --dee value\t(default: \"Inka\", \"Dinka\", \"dooo\")"}, } func TestStringSliceFlagHelpOutput(t *testing.T) { for _, test := range stringSliceFlagTests { flag := StringSliceFlag{Name: test.name, Value: test.value} output := flag.String() if output != test.expected { t.Errorf("%q does not match %q", output, test.expected) } } } func TestStringSliceFlagWithEnvVarHelpOutput(t *testing.T) { os.Clearenv() os.Setenv("APP_QWWX", "11,4") for _, test := range stringSliceFlagTests { flag := StringSliceFlag{Name: test.name, Value: test.value, EnvVar: "APP_QWWX"} output := flag.String() expectedSuffix := " [$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, EnvVar: "APP_BAR"} output := flag.String() expectedSuffix := " [$APP_BAR]" if runtime.GOOS == "windows" { expectedSuffix = " [%APP_BAR%]" } if !strings.HasSuffix(output, expectedSuffix) { t.Errorf("%s does not end with"+expectedSuffix, output) } } } var durationFlagTests = []struct { name string expected string }{ {"hooting", "--hooting value\t(default: 1s)"}, {"H", "-H value\t(default: 1s)"}, } func TestDurationFlagHelpOutput(t *testing.T) { for _, test := range durationFlagTests { flag := DurationFlag{Name: test.name, Value: 1 * time.Second} output := flag.String() if output != test.expected { t.Errorf("%q does not match %q", output, test.expected) } } } func TestDurationFlagWithEnvVarHelpOutput(t *testing.T) { os.Clearenv() os.Setenv("APP_BAR", "2h3m6s") for _, test := range durationFlagTests { flag := DurationFlag{Name: test.name, EnvVar: "APP_BAR"} output := flag.String() expectedSuffix := " [$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 value *IntSlice expected string }{ {"heads", NewIntSlice(), "--heads value\t"}, {"H", NewIntSlice(), "-H value\t"}, {"H, 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, 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, Value: test.value, EnvVar: "APP_SMURF"} output := flag.String() expectedSuffix := " [$APP_SMURF]" if runtime.GOOS == "windows" { expectedSuffix = " [%APP_SMURF%]" } if !strings.HasSuffix(output, expectedSuffix) { t.Errorf("%q does not end with"+expectedSuffix, output) } } } var float64FlagTests = []struct { name string expected string }{ {"hooting", "--hooting value\t(default: 0.1)"}, {"H", "-H value\t(default: 0.1)"}, } func TestFloat64FlagHelpOutput(t *testing.T) { for _, test := range float64FlagTests { flag := Float64Flag{Name: test.name, Value: float64(0.1)} output := flag.String() if output != test.expected { t.Errorf("%q does not match %q", output, test.expected) } } } func TestFloat64FlagWithEnvVarHelpOutput(t *testing.T) { os.Clearenv() os.Setenv("APP_BAZ", "99.4") for _, test := range float64FlagTests { flag := Float64Flag{Name: test.name, EnvVar: "APP_BAZ"} output := flag.String() expectedSuffix := " [$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, EnvVar: "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, 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, c", EnvVar: "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, c", EnvVar: "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, 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, 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, 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, i", Value: NewStringSlice(), EnvVar: "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, i", Value: NewStringSlice("1", "2", "5"), EnvVar: "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, i", Value: NewStringSlice(), EnvVar: "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, i", Value: NewStringSlice("1", "2", "5"), EnvVar: "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, 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, t", EnvVar: "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, t", EnvVar: "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, 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, 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, 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, i", Value: NewIntSlice(), EnvVar: "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, i", Value: NewIntSlice(1, 2, 5), EnvVar: "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, i", Value: NewIntSlice(), EnvVar: "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, 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, t", EnvVar: "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, t", EnvVar: "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, 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, d", EnvVar: "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, d", EnvVar: "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 TestParseMultiBoolT(t *testing.T) { a := App{ Flags: []Flag{ BoolTFlag{Name: "serve, s"}, }, Action: func(ctx *Context) error { if ctx.BoolT("serve") != true { t.Errorf("main name not set") } if ctx.BoolT("s") != true { t.Errorf("short name not set") } return nil }, } a.Run([]string{"run", "--serve"}) } func TestParseDestinationBoolT(t *testing.T) { var dest bool a := App{ Flags: []Flag{ BoolTFlag{ Name: "dest", Destination: &dest, }, }, Action: func(ctx *Context) error { if dest != true { t.Errorf("expected destination BoolT true") } return nil }, } a.Run([]string{"run", "--dest"}) } func TestParseMultiBoolTFromEnv(t *testing.T) { os.Clearenv() os.Setenv("APP_DEBUG", "0") a := App{ Flags: []Flag{ BoolTFlag{Name: "debug, d", EnvVar: "APP_DEBUG"}, }, Action: func(ctx *Context) error { if ctx.BoolT("debug") != false { t.Errorf("main name not set from env") } if ctx.BoolT("d") != false { t.Errorf("short name not set from env") } return nil }, } a.Run([]string{"run"}) } func TestParseMultiBoolTFromEnvCascade(t *testing.T) { os.Clearenv() os.Setenv("APP_DEBUG", "0") a := App{ Flags: []Flag{ BoolTFlag{Name: "debug, d", EnvVar: "COMPAT_DEBUG,APP_DEBUG"}, }, Action: func(ctx *Context) error { if ctx.BoolT("debug") != false { t.Errorf("main name not set from env") } if ctx.BoolT("d") != false { 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, 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, s", Value: &Parser{}, EnvVar: "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{}, EnvVar: "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) } }