go-arg/reflect_test.go

63 lines
1.9 KiB
Go

package arg
import (
"reflect"
"testing"
"github.com/stretchr/testify/assert"
)
func assertCanParse(t *testing.T, typ reflect.Type, parseable, boolean, multiple bool) {
p, b, m := canParse(typ)
assert.Equal(t, parseable, p, "expected %v to have parseable=%v but was %v", typ, parseable, p)
assert.Equal(t, boolean, b, "expected %v to have boolean=%v but was %v", typ, boolean, b)
assert.Equal(t, multiple, m, "expected %v to have multiple=%v but was %v", typ, multiple, m)
}
func TestCanParse(t *testing.T) {
var b bool
var i int
var s string
var f float64
var bs []bool
var is []int
assertCanParse(t, reflect.TypeOf(b), true, true, false)
assertCanParse(t, reflect.TypeOf(i), true, false, false)
assertCanParse(t, reflect.TypeOf(s), true, false, false)
assertCanParse(t, reflect.TypeOf(f), true, false, false)
assertCanParse(t, reflect.TypeOf(&b), true, true, false)
assertCanParse(t, reflect.TypeOf(&s), true, false, false)
assertCanParse(t, reflect.TypeOf(&i), true, false, false)
assertCanParse(t, reflect.TypeOf(&f), true, false, false)
assertCanParse(t, reflect.TypeOf(bs), true, true, true)
assertCanParse(t, reflect.TypeOf(&bs), true, true, true)
assertCanParse(t, reflect.TypeOf(is), true, false, true)
assertCanParse(t, reflect.TypeOf(&is), true, false, true)
}
type implementsTextUnmarshaler struct{}
func (*implementsTextUnmarshaler) UnmarshalText(text []byte) error {
return nil
}
func TestCanParseTextUnmarshaler(t *testing.T) {
var u implementsTextUnmarshaler
var su []implementsTextUnmarshaler
assertCanParse(t, reflect.TypeOf(u), true, false, false)
assertCanParse(t, reflect.TypeOf(&u), true, false, false)
assertCanParse(t, reflect.TypeOf(su), true, false, true)
assertCanParse(t, reflect.TypeOf(&su), true, false, true)
}
func TestIsExported(t *testing.T) {
assert.True(t, isExported("Exported"))
assert.False(t, isExported("notExported"))
assert.False(t, isExported(""))
assert.False(t, isExported(string([]byte{255})))
}