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- // Copyright 2020 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 build
- import (
- "android/soong/ui/logger"
- "bytes"
- "io/ioutil"
- "os"
- "path/filepath"
- "reflect"
- "sort"
- "strings"
- "testing"
- )
- func TestCleanOldFiles(t *testing.T) {
- dir, err := ioutil.TempDir("", "testcleanoldfiles")
- if err != nil {
- t.Fatal(err)
- }
- defer os.RemoveAll(dir)
- ctx := testContext()
- logBuf := &bytes.Buffer{}
- ctx.Logger = logger.New(logBuf)
- touch := func(names ...string) {
- for _, name := range names {
- if f, err := os.Create(filepath.Join(dir, name)); err != nil {
- t.Fatal(err)
- } else {
- f.Close()
- }
- }
- }
- runCleanOldFiles := func(names ...string) {
- data := []byte(strings.Join(names, " "))
- if err := ioutil.WriteFile(filepath.Join(dir, ".installed"), data, 0666); err != nil {
- t.Fatal(err)
- }
- cleanOldFiles(ctx, dir, ".installed")
- }
- assertFileList := func(names ...string) {
- t.Helper()
- sort.Strings(names)
- var foundNames []string
- if foundFiles, err := ioutil.ReadDir(dir); err == nil {
- for _, fi := range foundFiles {
- foundNames = append(foundNames, fi.Name())
- }
- } else {
- t.Fatal(err)
- }
- if !reflect.DeepEqual(names, foundNames) {
- t.Errorf("Expected a different list of files:\nwant: %v\n got: %v", names, foundNames)
- t.Error("Log: ", logBuf.String())
- logBuf.Reset()
- }
- }
- // Initial list of potential files
- runCleanOldFiles("foo", "bar")
- touch("foo", "bar", "baz")
- assertFileList("foo", "bar", "baz", ".installed.previous")
- // This should be a no-op, as the list hasn't changed
- runCleanOldFiles("foo", "bar")
- assertFileList("foo", "bar", "baz", ".installed", ".installed.previous")
- // This should be a no-op, as only a file was added
- runCleanOldFiles("foo", "bar", "foo2")
- assertFileList("foo", "bar", "baz", ".installed.previous")
- // "bar" should be removed, foo2 should be ignored as it was never there
- runCleanOldFiles("foo")
- assertFileList("foo", "baz", ".installed.previous")
- // Recreate bar, and create foo2. Ensure that they aren't removed
- touch("bar", "foo2")
- runCleanOldFiles("foo", "baz")
- assertFileList("foo", "bar", "baz", "foo2", ".installed.previous")
- }
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