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569 lines
16 KiB
569 lines
16 KiB
package cli
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import (
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"flag"
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"os"
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"strings"
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"testing"
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"time"
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)
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func TestNewContext(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Int("myflag", 12, "doc")
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set.Int64("myflagInt64", int64(12), "doc")
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set.Uint("myflagUint", uint(93), "doc")
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set.Uint64("myflagUint64", uint64(93), "doc")
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set.Float64("myflag64", float64(17), "doc")
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globalSet := flag.NewFlagSet("test", 0)
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globalSet.Int("myflag", 42, "doc")
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globalSet.Int64("myflagInt64", int64(42), "doc")
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globalSet.Uint("myflagUint", uint(33), "doc")
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globalSet.Uint64("myflagUint64", uint64(33), "doc")
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globalSet.Float64("myflag64", float64(47), "doc")
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globalCtx := NewContext(nil, globalSet, nil)
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command := Command{Name: "mycommand"}
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c := NewContext(nil, set, globalCtx)
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c.Command = command
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expect(t, c.Int("myflag"), 12)
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expect(t, c.Int64("myflagInt64"), int64(12))
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expect(t, c.Uint("myflagUint"), uint(93))
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expect(t, c.Uint64("myflagUint64"), uint64(93))
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expect(t, c.Float64("myflag64"), float64(17))
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expect(t, c.GlobalInt("myflag"), 42)
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expect(t, c.GlobalInt64("myflagInt64"), int64(42))
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expect(t, c.GlobalUint("myflagUint"), uint(33))
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expect(t, c.GlobalUint64("myflagUint64"), uint64(33))
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expect(t, c.GlobalFloat64("myflag64"), float64(47))
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expect(t, c.Command.Name, "mycommand")
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}
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func TestContext_Int(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Int("myflag", 12, "doc")
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c := NewContext(nil, set, nil)
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expect(t, c.Int("myflag"), 12)
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}
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func TestContext_Int64(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Int64("myflagInt64", 12, "doc")
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c := NewContext(nil, set, nil)
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expect(t, c.Int64("myflagInt64"), int64(12))
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}
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func TestContext_Uint(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Uint("myflagUint", uint(13), "doc")
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c := NewContext(nil, set, nil)
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expect(t, c.Uint("myflagUint"), uint(13))
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}
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func TestContext_Uint64(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Uint64("myflagUint64", uint64(9), "doc")
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c := NewContext(nil, set, nil)
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expect(t, c.Uint64("myflagUint64"), uint64(9))
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}
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func TestContext_GlobalInt(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Int("myflag", 12, "doc")
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c := NewContext(nil, set, nil)
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expect(t, c.GlobalInt("myflag"), 12)
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expect(t, c.GlobalInt("nope"), 0)
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}
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func TestContext_GlobalInt64(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Int64("myflagInt64", 12, "doc")
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c := NewContext(nil, set, nil)
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expect(t, c.GlobalInt64("myflagInt64"), int64(12))
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expect(t, c.GlobalInt64("nope"), int64(0))
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}
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func TestContext_Float64(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Float64("myflag", float64(17), "doc")
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c := NewContext(nil, set, nil)
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expect(t, c.Float64("myflag"), float64(17))
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}
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func TestContext_GlobalFloat64(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Float64("myflag", float64(17), "doc")
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c := NewContext(nil, set, nil)
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expect(t, c.GlobalFloat64("myflag"), float64(17))
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expect(t, c.GlobalFloat64("nope"), float64(0))
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}
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func TestContext_Duration(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Duration("myflag", 12*time.Second, "doc")
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c := NewContext(nil, set, nil)
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expect(t, c.Duration("myflag"), 12*time.Second)
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}
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func TestContext_String(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.String("myflag", "hello world", "doc")
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c := NewContext(nil, set, nil)
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expect(t, c.String("myflag"), "hello world")
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}
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func TestContext_Bool(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Bool("myflag", false, "doc")
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c := NewContext(nil, set, nil)
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expect(t, c.Bool("myflag"), false)
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}
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func TestContext_BoolT(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Bool("myflag", true, "doc")
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c := NewContext(nil, set, nil)
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expect(t, c.BoolT("myflag"), true)
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}
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func TestContext_GlobalBool(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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globalSet := flag.NewFlagSet("test-global", 0)
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globalSet.Bool("myflag", false, "doc")
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globalCtx := NewContext(nil, globalSet, nil)
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c := NewContext(nil, set, globalCtx)
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expect(t, c.GlobalBool("myflag"), false)
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expect(t, c.GlobalBool("nope"), false)
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}
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func TestContext_GlobalBoolT(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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globalSet := flag.NewFlagSet("test-global", 0)
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globalSet.Bool("myflag", true, "doc")
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globalCtx := NewContext(nil, globalSet, nil)
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c := NewContext(nil, set, globalCtx)
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expect(t, c.GlobalBoolT("myflag"), true)
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expect(t, c.GlobalBoolT("nope"), false)
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}
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func TestContext_Args(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Bool("myflag", false, "doc")
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c := NewContext(nil, set, nil)
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_ = set.Parse([]string{"--myflag", "bat", "baz"})
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expect(t, len(c.Args()), 2)
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expect(t, c.Bool("myflag"), true)
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}
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func TestContext_NArg(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Bool("myflag", false, "doc")
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c := NewContext(nil, set, nil)
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_ = set.Parse([]string{"--myflag", "bat", "baz"})
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expect(t, c.NArg(), 2)
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}
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func TestContext_IsSet(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Bool("myflag", false, "doc")
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set.String("otherflag", "hello world", "doc")
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globalSet := flag.NewFlagSet("test", 0)
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globalSet.Bool("myflagGlobal", true, "doc")
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globalCtx := NewContext(nil, globalSet, nil)
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c := NewContext(nil, set, globalCtx)
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_ = set.Parse([]string{"--myflag", "bat", "baz"})
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_ = globalSet.Parse([]string{"--myflagGlobal", "bat", "baz"})
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expect(t, c.IsSet("myflag"), true)
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expect(t, c.IsSet("otherflag"), false)
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expect(t, c.IsSet("bogusflag"), false)
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expect(t, c.IsSet("myflagGlobal"), false)
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}
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// XXX Corresponds to hack in context.IsSet for flags with EnvVar field
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// Should be moved to `flag_test` in v2
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func TestContext_IsSet_fromEnv(t *testing.T) {
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var (
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timeoutIsSet, tIsSet bool
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noEnvVarIsSet, nIsSet bool
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passwordIsSet, pIsSet bool
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unparsableIsSet, uIsSet bool
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)
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clearenv()
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_ = os.Setenv("APP_TIMEOUT_SECONDS", "15.5")
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_ = os.Setenv("APP_PASSWORD", "")
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a := App{
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Flags: []Flag{
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Float64Flag{Name: "timeout, t", EnvVar: "APP_TIMEOUT_SECONDS"},
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StringFlag{Name: "password, p", EnvVar: "APP_PASSWORD"},
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Float64Flag{Name: "unparsable, u", EnvVar: "APP_UNPARSABLE"},
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Float64Flag{Name: "no-env-var, n"},
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},
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Action: func(ctx *Context) error {
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timeoutIsSet = ctx.IsSet("timeout")
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tIsSet = ctx.IsSet("t")
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passwordIsSet = ctx.IsSet("password")
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pIsSet = ctx.IsSet("p")
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unparsableIsSet = ctx.IsSet("unparsable")
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uIsSet = ctx.IsSet("u")
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noEnvVarIsSet = ctx.IsSet("no-env-var")
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nIsSet = ctx.IsSet("n")
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return nil
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},
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}
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_ = a.Run([]string{"run"})
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expect(t, timeoutIsSet, true)
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expect(t, tIsSet, true)
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expect(t, passwordIsSet, true)
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expect(t, pIsSet, true)
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expect(t, noEnvVarIsSet, false)
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expect(t, nIsSet, false)
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_ = os.Setenv("APP_UNPARSABLE", "foobar")
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_ = a.Run([]string{"run"})
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expect(t, unparsableIsSet, false)
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expect(t, uIsSet, false)
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}
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func TestContext_GlobalIsSet(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Bool("myflag", false, "doc")
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set.String("otherflag", "hello world", "doc")
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globalSet := flag.NewFlagSet("test", 0)
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globalSet.Bool("myflagGlobal", true, "doc")
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globalSet.Bool("myflagGlobalUnset", true, "doc")
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globalCtx := NewContext(nil, globalSet, nil)
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c := NewContext(nil, set, globalCtx)
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_ = set.Parse([]string{"--myflag", "bat", "baz"})
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_ = globalSet.Parse([]string{"--myflagGlobal", "bat", "baz"})
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expect(t, c.GlobalIsSet("myflag"), false)
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expect(t, c.GlobalIsSet("otherflag"), false)
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expect(t, c.GlobalIsSet("bogusflag"), false)
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expect(t, c.GlobalIsSet("myflagGlobal"), true)
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expect(t, c.GlobalIsSet("myflagGlobalUnset"), false)
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expect(t, c.GlobalIsSet("bogusGlobal"), false)
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}
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// XXX Corresponds to hack in context.IsSet for flags with EnvVar field
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// Should be moved to `flag_test` in v2
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func TestContext_GlobalIsSet_fromEnv(t *testing.T) {
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var (
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timeoutIsSet, tIsSet bool
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noEnvVarIsSet, nIsSet bool
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passwordIsSet, pIsSet bool
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passwordValue string
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unparsableIsSet, uIsSet bool
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overrideIsSet, oIsSet bool
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overrideValue string
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)
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clearenv()
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_ = os.Setenv("APP_TIMEOUT_SECONDS", "15.5")
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_ = os.Setenv("APP_PASSWORD", "badpass")
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_ = os.Setenv("APP_OVERRIDE", "overridden")
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a := App{
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Flags: []Flag{
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Float64Flag{Name: "timeout, t", EnvVar: "APP_TIMEOUT_SECONDS"},
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StringFlag{Name: "password, p", EnvVar: "APP_PASSWORD"},
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Float64Flag{Name: "no-env-var, n"},
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Float64Flag{Name: "unparsable, u", EnvVar: "APP_UNPARSABLE"},
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StringFlag{Name: "overrides-default, o", Value: "default", EnvVar: "APP_OVERRIDE"},
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},
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Commands: []Command{
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{
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Name: "hello",
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Action: func(ctx *Context) error {
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timeoutIsSet = ctx.GlobalIsSet("timeout")
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tIsSet = ctx.GlobalIsSet("t")
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passwordIsSet = ctx.GlobalIsSet("password")
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pIsSet = ctx.GlobalIsSet("p")
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passwordValue = ctx.GlobalString("password")
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unparsableIsSet = ctx.GlobalIsSet("unparsable")
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uIsSet = ctx.GlobalIsSet("u")
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noEnvVarIsSet = ctx.GlobalIsSet("no-env-var")
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nIsSet = ctx.GlobalIsSet("n")
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overrideIsSet = ctx.GlobalIsSet("overrides-default")
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oIsSet = ctx.GlobalIsSet("o")
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overrideValue = ctx.GlobalString("overrides-default")
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return nil
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},
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},
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},
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}
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if err := a.Run([]string{"run", "hello"}); err != nil {
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t.Logf("error running Run(): %+v", err)
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}
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expect(t, timeoutIsSet, true)
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expect(t, tIsSet, true)
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expect(t, passwordIsSet, true)
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expect(t, pIsSet, true)
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expect(t, passwordValue, "badpass")
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expect(t, unparsableIsSet, false)
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expect(t, noEnvVarIsSet, false)
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expect(t, nIsSet, false)
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expect(t, overrideIsSet, true)
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expect(t, oIsSet, true)
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expect(t, overrideValue, "overridden")
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_ = os.Setenv("APP_UNPARSABLE", "foobar")
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if err := a.Run([]string{"run"}); err != nil {
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t.Logf("error running Run(): %+v", err)
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}
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expect(t, unparsableIsSet, false)
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expect(t, uIsSet, false)
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}
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func TestContext_NumFlags(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Bool("myflag", false, "doc")
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set.String("otherflag", "hello world", "doc")
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globalSet := flag.NewFlagSet("test", 0)
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globalSet.Bool("myflagGlobal", true, "doc")
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globalCtx := NewContext(nil, globalSet, nil)
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c := NewContext(nil, set, globalCtx)
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_ = set.Parse([]string{"--myflag", "--otherflag=foo"})
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_ = globalSet.Parse([]string{"--myflagGlobal"})
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expect(t, c.NumFlags(), 2)
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}
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func TestContext_GlobalFlag(t *testing.T) {
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var globalFlag string
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var globalFlagSet bool
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app := NewApp()
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app.Flags = []Flag{
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StringFlag{Name: "global, g", Usage: "global"},
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}
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app.Action = func(c *Context) error {
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globalFlag = c.GlobalString("global")
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globalFlagSet = c.GlobalIsSet("global")
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return nil
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}
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_ = app.Run([]string{"command", "-g", "foo"})
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expect(t, globalFlag, "foo")
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expect(t, globalFlagSet, true)
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}
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func TestContext_GlobalFlagsInSubcommands(t *testing.T) {
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subcommandRun := false
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parentFlag := false
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app := NewApp()
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app.Flags = []Flag{
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BoolFlag{Name: "debug, d", Usage: "Enable debugging"},
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}
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app.Commands = []Command{
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{
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Name: "foo",
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Flags: []Flag{
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BoolFlag{Name: "parent, p", Usage: "Parent flag"},
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},
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Subcommands: []Command{
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{
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Name: "bar",
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Action: func(c *Context) error {
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if c.GlobalBool("debug") {
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subcommandRun = true
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}
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if c.GlobalBool("parent") {
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parentFlag = true
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}
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return nil
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},
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},
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},
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},
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}
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_ = app.Run([]string{"command", "-d", "foo", "-p", "bar"})
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expect(t, subcommandRun, true)
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expect(t, parentFlag, true)
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}
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func TestContext_Set(t *testing.T) {
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set := flag.NewFlagSet("test", 0)
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set.Int("int", 5, "an int")
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c := NewContext(nil, set, nil)
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expect(t, c.IsSet("int"), false)
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_ = c.Set("int", "1")
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expect(t, c.Int("int"), 1)
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expect(t, c.IsSet("int"), true)
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}
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func TestContext_GlobalSet(t *testing.T) {
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gSet := flag.NewFlagSet("test", 0)
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gSet.Int("int", 5, "an int")
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set := flag.NewFlagSet("sub", 0)
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set.Int("int", 3, "an int")
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pc := NewContext(nil, gSet, nil)
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c := NewContext(nil, set, pc)
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_ = c.Set("int", "1")
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expect(t, c.Int("int"), 1)
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expect(t, c.GlobalInt("int"), 5)
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expect(t, c.GlobalIsSet("int"), false)
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_ = c.GlobalSet("int", "1")
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expect(t, c.Int("int"), 1)
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expect(t, c.GlobalInt("int"), 1)
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expect(t, c.GlobalIsSet("int"), true)
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}
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func TestCheckRequiredFlags(t *testing.T) {
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tdata := []struct {
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testCase string
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parseInput []string
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envVarInput [2]string
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flags []Flag
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expectedAnError bool
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expectedErrorContents []string
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}{
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{
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testCase: "empty",
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},
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{
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testCase: "optional",
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flags: []Flag{
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StringFlag{Name: "optionalFlag"},
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},
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},
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{
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testCase: "required",
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flags: []Flag{
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StringFlag{Name: "requiredFlag", Required: true},
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},
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expectedAnError: true,
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expectedErrorContents: []string{"requiredFlag"},
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},
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{
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testCase: "required_and_present",
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flags: []Flag{
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StringFlag{Name: "requiredFlag", Required: true},
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},
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parseInput: []string{"--requiredFlag", "myinput"},
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},
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{
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testCase: "required_and_present_via_env_var",
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flags: []Flag{
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StringFlag{Name: "requiredFlag", Required: true, EnvVar: "REQUIRED_FLAG"},
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},
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envVarInput: [2]string{"REQUIRED_FLAG", "true"},
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},
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{
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testCase: "required_and_optional",
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flags: []Flag{
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StringFlag{Name: "requiredFlag", Required: true},
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StringFlag{Name: "optionalFlag"},
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},
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expectedAnError: true,
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},
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{
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testCase: "required_and_optional_and_optional_present",
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flags: []Flag{
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StringFlag{Name: "requiredFlag", Required: true},
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StringFlag{Name: "optionalFlag"},
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},
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parseInput: []string{"--optionalFlag", "myinput"},
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expectedAnError: true,
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|
},
|
|
{
|
|
testCase: "required_and_optional_and_optional_present_via_env_var",
|
|
flags: []Flag{
|
|
StringFlag{Name: "requiredFlag", Required: true},
|
|
StringFlag{Name: "optionalFlag", EnvVar: "OPTIONAL_FLAG"},
|
|
},
|
|
envVarInput: [2]string{"OPTIONAL_FLAG", "true"},
|
|
expectedAnError: true,
|
|
},
|
|
{
|
|
testCase: "required_and_optional_and_required_present",
|
|
flags: []Flag{
|
|
StringFlag{Name: "requiredFlag", Required: true},
|
|
StringFlag{Name: "optionalFlag"},
|
|
},
|
|
parseInput: []string{"--requiredFlag", "myinput"},
|
|
},
|
|
{
|
|
testCase: "two_required",
|
|
flags: []Flag{
|
|
StringFlag{Name: "requiredFlagOne", Required: true},
|
|
StringFlag{Name: "requiredFlagTwo", Required: true},
|
|
},
|
|
expectedAnError: true,
|
|
expectedErrorContents: []string{"requiredFlagOne", "requiredFlagTwo"},
|
|
},
|
|
{
|
|
testCase: "two_required_and_one_present",
|
|
flags: []Flag{
|
|
StringFlag{Name: "requiredFlag", Required: true},
|
|
StringFlag{Name: "requiredFlagTwo", Required: true},
|
|
},
|
|
parseInput: []string{"--requiredFlag", "myinput"},
|
|
expectedAnError: true,
|
|
},
|
|
{
|
|
testCase: "two_required_and_both_present",
|
|
flags: []Flag{
|
|
StringFlag{Name: "requiredFlag", Required: true},
|
|
StringFlag{Name: "requiredFlagTwo", Required: true},
|
|
},
|
|
parseInput: []string{"--requiredFlag", "myinput", "--requiredFlagTwo", "myinput"},
|
|
},
|
|
{
|
|
testCase: "required_flag_with_short_name",
|
|
flags: []Flag{
|
|
StringSliceFlag{Name: "names, N", Required: true},
|
|
},
|
|
parseInput: []string{"-N", "asd", "-N", "qwe"},
|
|
},
|
|
{
|
|
testCase: "required_flag_with_multiple_short_names",
|
|
flags: []Flag{
|
|
StringSliceFlag{Name: "names, N, n", Required: true},
|
|
},
|
|
parseInput: []string{"-n", "asd", "-n", "qwe"},
|
|
},
|
|
}
|
|
for _, test := range tdata {
|
|
t.Run(test.testCase, func(t *testing.T) {
|
|
// setup
|
|
set := flag.NewFlagSet("test", 0)
|
|
for _, flags := range test.flags {
|
|
flags.Apply(set)
|
|
}
|
|
_ = set.Parse(test.parseInput)
|
|
if test.envVarInput[0] != "" {
|
|
os.Clearenv()
|
|
_ = os.Setenv(test.envVarInput[0], test.envVarInput[1])
|
|
}
|
|
ctx := &Context{}
|
|
context := NewContext(ctx.App, set, ctx)
|
|
context.Command.Flags = test.flags
|
|
|
|
// logic under test
|
|
err := checkRequiredFlags(test.flags, context)
|
|
|
|
// assertions
|
|
if test.expectedAnError && err == nil {
|
|
t.Errorf("expected an error, but there was none")
|
|
}
|
|
if !test.expectedAnError && err != nil {
|
|
t.Errorf("did not expected an error, but there was one: %s", err)
|
|
}
|
|
for _, errString := range test.expectedErrorContents {
|
|
if !strings.Contains(err.Error(), errString) {
|
|
t.Errorf("expected error %q to contain %q, but it didn't!", err.Error(), errString)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|