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// Copyright 2015 Garrett D'Amore
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use file except in compliance with the License.
// You may obtain a copy of the license at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package encoding
import (
"bytes"
"golang.org/x/text/encoding"
"unicode/utf8"
. "github.com/smartystreets/goconvey/convey"
)
func verifyMap(enc encoding.Encoding, b byte, r rune) {
verifyFromUTF(enc, b, r)
verifyToUTF(enc, b, r)
}
func verifyFromUTF(enc encoding.Encoding, b byte, r rune) {
encoder := enc.NewEncoder()
out := make([]byte, 6)
utf := make([]byte, utf8.RuneLen(r))
utf8.EncodeRune(utf, r)
ndst, nsrc, err := encoder.Transform(out, utf, true)
So(err, ShouldBeNil)
So(nsrc, ShouldEqual, len(utf))
So(ndst, ShouldEqual, 1)
So(b, ShouldEqual, out[0])
}
func verifyToUTF(enc encoding.Encoding, b byte, r rune) {
decoder := enc.NewDecoder()
out := make([]byte, 6)
nat := []byte{b}
utf := make([]byte, utf8.RuneLen(r))
utf8.EncodeRune(utf, r)
ndst, nsrc, err := decoder.Transform(out, nat, true)
So(err, ShouldBeNil)
So(nsrc, ShouldEqual, 1)
if !bytes.Equal(utf, out[:ndst]) {
Printf("UTF expected %v, but got %v for %x\n", utf, out, b)
}
So(bytes.Equal(utf, out[:ndst]), ShouldBeTrue)
}
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