| // 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 ( |
| "testing" |
| "time" |
| ) |
| |
| import ( |
| . "github.com/onsi/gomega" |
| meshconfig "istio.io/api/mesh/v1alpha1" |
| "istio.io/pkg/filewatcher" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go-pixiu/pkg/config/mesh" |
| ) |
| |
| func TestNewNetworksWatcherWithBadInputShouldFail(t *testing.T) { |
| g := NewWithT(t) |
| _, err := mesh.NewNetworksWatcher(filewatcher.NewWatcher(), "") |
| g.Expect(err).ToNot(BeNil()) |
| } |
| |
| func TestNetworksWatcherShouldNotifyHandlers(t *testing.T) { |
| g := NewWithT(t) |
| |
| path := newTempFile(t) |
| defer removeSilent(path) |
| |
| n := meshconfig.MeshNetworks{ |
| Networks: make(map[string]*meshconfig.Network), |
| } |
| writeMessage(t, path, &n) |
| |
| w := newNetworksWatcher(t, path) |
| g.Expect(w.Networks()).To(Equal(&n)) |
| |
| doneCh := make(chan struct{}, 1) |
| |
| var newN *meshconfig.MeshNetworks |
| w.AddNetworksHandler(func() { |
| newN = w.Networks() |
| close(doneCh) |
| }) |
| |
| // Change the file to trigger the update. |
| n.Networks["test"] = &meshconfig.Network{} |
| writeMessage(t, path, &n) |
| |
| select { |
| case <-doneCh: |
| g.Expect(newN).To(Equal(&n)) |
| g.Expect(w.Networks()).To(Equal(newN)) |
| break |
| case <-time.After(time.Second * 5): |
| t.Fatal("timed out waiting for update") |
| } |
| } |
| |
| func newNetworksWatcher(t *testing.T, filename string) mesh.NetworksWatcher { |
| t.Helper() |
| w, err := mesh.NewNetworksWatcher(filewatcher.NewWatcher(), filename) |
| if err != nil { |
| t.Fatal(err) |
| } |
| return w |
| } |