Function TestToGoflags

golangflag_test.go:64–135

(t *testing.T)

}

func TestToGoflags(t *testing.T) {
	pfs := FlagSet{}
	gfs := goflag.FlagSet{}
	pfs.String("StringFlag", "String value", "String flag usage")
	pfs.Int("IntFlag", 1, "Int flag usage")
	pfs.Uint("UintFlag", 2, "Uint flag usage")
	pfs.Int64("Int64Flag", 3, "Int64 flag usage")
	pfs.Uint64("Uint64Flag", 4, "Uint64 flag usage")
	pfs.Int8("Int8Flag", 5, "Int8 flag usage")
	pfs.Float64("Float64Flag", 6.0, "Float64 flag usage")
	pfs.Duration("DurationFlag", time.Second, "Duration flag usage")
	pfs.Bool("BoolFlag", true, "Bool flag usage")
	pfs.String("deprecated", "Deprecated value", "Deprecated flag usage")
	pfs.MarkDeprecated("deprecated", "obsolete")

	pfs.CopyToGoFlagSet(&gfs)

	// Modify via pfs. Should be visible via gfs because both share the
	// same values.
	for name, value := range map[string]string{
		"StringFlag":  "Modified String value",
		"IntFlag":     "11",
		"UintFlag":    "12",
		"Int64Flag":   "13",
		"Uint64Flag":  "14",
		"Int8Flag":    "15",
		"Float64Flag": "16.0",
		"BoolFlag":    "false",
	} {
		pf := pfs.Lookup(name)
		if pf == nil {
			t.Errorf("%s: not found in pflag flag set", name)
			continue
		}
		if err := pf.Value.Set(value); err != nil {
			t.Errorf("error setting %s = %s: %v", name, value, err)
		}
	}

	// Check that all flags were added and share the same value.
	pfs.VisitAll(func(pf *Flag) {
		gf := gfs.Lookup(pf.Name)
		if gf == nil {
			t.Errorf("%s: not found in Go flag set", pf.Name)
			return
		}
		if gf.Value.String() != pf.Value.String() {
			t.Errorf("%s: expected value %v from Go flag set, got %v",
				pf.Name, pf.Value, gf.Value)
			return
		}
	})

	// Check for unexpected additional flags.
	gfs.VisitAll(func(gf *goflag.Flag) {
		pf := gfs.Lookup(gf.Name)
		if pf == nil {
			t.Errorf("%s: not found in pflag flag set", gf.Name)