| // Copyright Istio Authors |
| // |
| // 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 mesh_test |
| |
| import ( |
| "os" |
| "path/filepath" |
| "testing" |
| "time" |
| ) |
| |
| import ( |
| . "github.com/onsi/gomega" |
| "google.golang.org/protobuf/proto" |
| meshconfig "istio.io/api/mesh/v1alpha1" |
| "istio.io/pkg/filewatcher" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go-pixiu/pkg/config/mesh" |
| "github.com/apache/dubbo-go-pixiu/pkg/test/util/assert" |
| "github.com/apache/dubbo-go-pixiu/pkg/util/protomarshal" |
| ) |
| |
| func TestNewWatcherWithBadInputShouldFail(t *testing.T) { |
| g := NewWithT(t) |
| _, err := mesh.NewFileWatcher(filewatcher.NewWatcher(), "", false) |
| g.Expect(err).ToNot(BeNil()) |
| } |
| |
| func TestWatcherShouldNotifyHandlers(t *testing.T) { |
| watcherShouldNotifyHandlers(t, false) |
| } |
| |
| func TestMultiWatcherShouldNotifyHandlers(t *testing.T) { |
| watcherShouldNotifyHandlers(t, true) |
| } |
| |
| func watcherShouldNotifyHandlers(t *testing.T, multi bool) { |
| path := newTempFile(t) |
| |
| m := mesh.DefaultMeshConfig() |
| writeMessage(t, path, m) |
| |
| w := newWatcher(t, path, multi) |
| assert.Equal(t, w.Mesh(), m) |
| |
| doneCh := make(chan struct{}, 1) |
| |
| var newM *meshconfig.MeshConfig |
| w.AddMeshHandler(func() { |
| newM = w.Mesh() |
| close(doneCh) |
| }) |
| |
| // Change the file to trigger the update. |
| m.IngressClass = "foo" |
| writeMessage(t, path, m) |
| |
| select { |
| case <-doneCh: |
| assert.Equal(t, newM, m) |
| assert.Equal(t, w.Mesh(), newM) |
| break |
| case <-time.After(time.Second * 5): |
| t.Fatal("timed out waiting for update") |
| } |
| } |
| |
| func newWatcher(t testing.TB, filename string, multi bool) mesh.Watcher { |
| t.Helper() |
| w, err := mesh.NewFileWatcher(filewatcher.NewWatcher(), filename, multi) |
| if err != nil { |
| t.Fatal(err) |
| } |
| return w |
| } |
| |
| func newTempFile(t testing.TB) string { |
| t.Helper() |
| |
| f, err := os.CreateTemp(t.TempDir(), t.Name()) |
| if err != nil { |
| t.Fatal(err) |
| } |
| t.Cleanup(func() { _ = f.Close() }) |
| |
| path, err := filepath.Abs(f.Name()) |
| if err != nil { |
| t.Fatal(err) |
| } |
| return path |
| } |
| |
| func writeMessage(t testing.TB, path string, msg proto.Message) { |
| t.Helper() |
| yml, err := protomarshal.ToYAML(msg) |
| if err != nil { |
| t.Fatal(err) |
| } |
| writeFile(t, path, yml) |
| } |
| |
| func writeFile(t testing.TB, path, content string) { |
| t.Helper() |
| if err := os.WriteFile(path, []byte(content), 0o666); err != nil { |
| t.Fatal(err) |
| } |
| } |
| |
| func removeSilent(path string) { |
| _ = os.RemoveAll(path) |
| } |
| |
| func BenchmarkGetMesh(b *testing.B) { |
| b.StopTimer() |
| |
| path := newTempFile(b) |
| defer removeSilent(path) |
| |
| m := mesh.DefaultMeshConfig() |
| writeMessage(b, path, m) |
| |
| w := newWatcher(b, path, false) |
| |
| b.StartTimer() |
| |
| handler := func(mc *meshconfig.MeshConfig) { |
| // Do nothing |
| } |
| |
| for i := 0; i < b.N; i++ { |
| handler(w.Mesh()) |
| } |
| } |