| // Copyright 2018 Google LLC |
| // |
| // 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 pubsub_test |
| |
| import ( |
| "context" |
| "strconv" |
| "sync" |
| "testing" |
| |
| "cloud.google.com/go/internal/testutil" |
| "cloud.google.com/go/pubsub" |
| "cloud.google.com/go/pubsub/pstest" |
| "google.golang.org/api/option" |
| "google.golang.org/grpc" |
| ) |
| |
| // withGRPCHeadersAssertionAlt is named differently than |
| // withGRPCHeadersAssertion in integration_test.go, because integration_test.go |
| // doesn't perform an external test i.e. its package name is "pubsub" while |
| // this one's is "pubsub_test", and when using Go Modules, without this rename |
| // go test won't find the function "withGRPCHeadersAssertion". |
| func withGRPCHeadersAssertionAlt(t *testing.T, opts ...option.ClientOption) []option.ClientOption { |
| grpcHeadersEnforcer := &testutil.HeadersEnforcer{ |
| OnFailure: t.Fatalf, |
| Checkers: []*testutil.HeaderChecker{ |
| testutil.XGoogClientHeaderChecker, |
| }, |
| } |
| return append(grpcHeadersEnforcer.CallOptions(), opts...) |
| } |
| |
| func TestPSTest(t *testing.T) { |
| t.Parallel() |
| ctx := context.Background() |
| srv := pstest.NewServer() |
| defer srv.Close() |
| |
| conn, err := grpc.Dial(srv.Addr, grpc.WithInsecure()) |
| if err != nil { |
| panic(err) |
| } |
| defer conn.Close() |
| |
| opts := withGRPCHeadersAssertionAlt(t, option.WithGRPCConn(conn)) |
| client, err := pubsub.NewClient(ctx, "some-project", opts...) |
| if err != nil { |
| panic(err) |
| } |
| defer client.Close() |
| |
| topic, err := client.CreateTopic(ctx, "test-topic") |
| if err != nil { |
| panic(err) |
| } |
| |
| sub, err := client.CreateSubscription(ctx, "sub-name", pubsub.SubscriptionConfig{Topic: topic}) |
| if err != nil { |
| panic(err) |
| } |
| |
| go func() { |
| for i := 0; i < 10; i++ { |
| srv.Publish("projects/some-project/topics/test-topic", []byte(strconv.Itoa(i)), nil) |
| } |
| }() |
| |
| ctx, cancel := context.WithCancel(ctx) |
| var mu sync.Mutex |
| count := 0 |
| err = sub.Receive(ctx, func(ctx context.Context, m *pubsub.Message) { |
| mu.Lock() |
| count++ |
| if count >= 10 { |
| cancel() |
| } |
| mu.Unlock() |
| m.Ack() |
| }) |
| if err != nil { |
| panic(err) |
| } |
| } |