// Copyright 2018 Google Inc. All rights reserved.
|
//
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
// you may not use this 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 parser
|
|
import (
|
"bytes"
|
"testing"
|
)
|
|
func TestPatchList(t *testing.T) {
|
expectOverlap := func(err error) {
|
t.Helper()
|
if _, ok := err.(PatchOverlapError); !ok {
|
t.Error("missing PatchOverlapError")
|
}
|
}
|
|
expectOk := func(err error) {
|
t.Helper()
|
if err != nil {
|
t.Error(err)
|
}
|
}
|
|
in := []byte("abcdefghijklmnopqrstuvwxyz")
|
|
patchlist := PatchList{}
|
expectOk(patchlist.Add(0, 3, "ABC"))
|
expectOk(patchlist.Add(12, 15, "MNO"))
|
expectOk(patchlist.Add(24, 26, "Z"))
|
expectOk(patchlist.Add(15, 15, "_"))
|
|
expectOverlap(patchlist.Add(0, 3, "x"))
|
expectOverlap(patchlist.Add(12, 13, "x"))
|
expectOverlap(patchlist.Add(13, 14, "x"))
|
expectOverlap(patchlist.Add(14, 15, "x"))
|
expectOverlap(patchlist.Add(11, 13, "x"))
|
expectOverlap(patchlist.Add(12, 15, "x"))
|
expectOverlap(patchlist.Add(11, 15, "x"))
|
expectOverlap(patchlist.Add(15, 15, "x"))
|
|
if t.Failed() {
|
return
|
}
|
|
buf := new(bytes.Buffer)
|
patchlist.Apply(bytes.NewReader(in), buf)
|
expected := "ABCdefghijklMNO_pqrstuvwxZ"
|
got := buf.String()
|
if got != expected {
|
t.Errorf("expected %q, got %q", expected, got)
|
}
|
}
|
