✅ test(gflag): add more tests for flag option

gflag/opts_test.go

@@ -0,0 +1,49 @@
+package gflag_test
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/gookit/gcli/v3/gflag"
+	"github.com/gookit/goutil/testutil/assert"
+)
+
+func TestCliOpt_basic(t *testing.T) {
+	opt := gflag.NewOpt("opt1", "a option", "")
+	opt.WithOptFns(gflag.WithDefault("abc"), gflag.WithRequired(), gflag.WithShorts("o", "a"))
+
+	assert.True(t, opt.Required)
+	assert.Eq(t, "abc", opt.DefVal)
+	assert.Eq(t, "o,a", opt.Shorts2String())
+
+	opt = gflag.NewOpt("opt1", "a option", "")
+	opt.WithOptFns(gflag.WithShortcut("o"))
+
+	assert.False(t, opt.Required)
+	assert.Eq(t, "o", opt.Shorts2String())
+}
+
+func TestCliOpt_Validate(t *testing.T) {
+	fm := gflag.CliOpt{Name: "opt1"}
+	assert.False(t, fm.Required)
+
+	fm.WithOptFns(gflag.WithRequired(), gflag.WithValidator(func(val string) error {
+		if len(val) < 5 {
+			return errors.New("flag value min len is 5")
+		}
+		return nil
+	}))
+
+	assert.True(t, fm.Required)
+
+	err := fm.Validate("")
+	assert.Err(t, err)
+	assert.Eq(t, "flag 'opt1' is required", err.Error())
+
+	err = fm.Validate("val")
+	assert.Err(t, err)
+	assert.Eq(t, "flag value min len is 5", err.Error())
+
+	err = fm.Validate("value")
+	assert.NoErr(t, err)
+}