363 lines
10 KiB
Go
363 lines
10 KiB
Go
// Copyright 2014 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package pubsub
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import (
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"fmt"
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"reflect"
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"testing"
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"time"
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gax "github.com/googleapis/gax-go"
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"golang.org/x/net/context"
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"cloud.google.com/go/iam"
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"cloud.google.com/go/internal"
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"cloud.google.com/go/internal/testutil"
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"google.golang.org/api/iterator"
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"google.golang.org/api/option"
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)
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var (
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topicIDs = testutil.NewUIDSpace("topic")
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subIDs = testutil.NewUIDSpace("sub")
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)
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// messageData is used to hold the contents of a message so that it can be compared against the contents
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// of another message without regard to irrelevant fields.
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type messageData struct {
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ID string
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Data []byte
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Attributes map[string]string
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}
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func extractMessageData(m *Message) *messageData {
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return &messageData{
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ID: m.ID,
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Data: m.Data,
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Attributes: m.Attributes,
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}
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}
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func integrationTestClient(t *testing.T, ctx context.Context) *Client {
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if testing.Short() {
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t.Skip("Integration tests skipped in short mode")
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}
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projID := testutil.ProjID()
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if projID == "" {
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t.Skip("Integration tests skipped. See CONTRIBUTING.md for details")
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}
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ts := testutil.TokenSource(ctx, ScopePubSub, ScopeCloudPlatform)
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if ts == nil {
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t.Skip("Integration tests skipped. See CONTRIBUTING.md for details")
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}
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client, err := NewClient(ctx, projID, option.WithTokenSource(ts))
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if err != nil {
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t.Fatalf("Creating client error: %v", err)
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}
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return client
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}
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func TestAll(t *testing.T) {
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t.Parallel()
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ctx := context.Background()
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client := integrationTestClient(t, ctx)
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defer client.Close()
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topic, err := client.CreateTopic(ctx, topicIDs.New())
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if err != nil {
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t.Errorf("CreateTopic error: %v", err)
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}
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defer topic.Stop()
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var sub *Subscription
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if sub, err = client.CreateSubscription(ctx, subIDs.New(), SubscriptionConfig{Topic: topic}); err != nil {
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t.Errorf("CreateSub error: %v", err)
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}
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exists, err := topic.Exists(ctx)
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if err != nil {
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t.Fatalf("TopicExists error: %v", err)
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}
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if !exists {
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t.Errorf("topic %v should exist, but it doesn't", topic)
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}
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exists, err = sub.Exists(ctx)
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if err != nil {
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t.Fatalf("SubExists error: %v", err)
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}
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if !exists {
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t.Errorf("subscription %s should exist, but it doesn't", sub.ID())
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}
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var msgs []*Message
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for i := 0; i < 10; i++ {
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text := fmt.Sprintf("a message with an index %d", i)
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attrs := make(map[string]string)
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attrs["foo"] = "bar"
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msgs = append(msgs, &Message{
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Data: []byte(text),
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Attributes: attrs,
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})
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}
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// Publish the messages.
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type pubResult struct {
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m *Message
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r *PublishResult
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}
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var rs []pubResult
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for _, m := range msgs {
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r := topic.Publish(ctx, m)
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rs = append(rs, pubResult{m, r})
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}
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want := make(map[string]*messageData)
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for _, res := range rs {
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id, err := res.r.Get(ctx)
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if err != nil {
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t.Fatal(err)
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}
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md := extractMessageData(res.m)
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md.ID = id
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want[md.ID] = md
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}
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// Use a timeout to ensure that Pull does not block indefinitely if there are unexpectedly few messages available.
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timeoutCtx, _ := context.WithTimeout(ctx, time.Minute)
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gotMsgs, err := pullN(timeoutCtx, sub, len(want), func(ctx context.Context, m *Message) {
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m.Ack()
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})
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if err != nil {
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t.Fatalf("Pull: %v", err)
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}
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got := make(map[string]*messageData)
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for _, m := range gotMsgs {
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md := extractMessageData(m)
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got[md.ID] = md
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}
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if !reflect.DeepEqual(got, want) {
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t.Errorf("messages: got: %v ; want: %v", got, want)
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}
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if msg, ok := testIAM(ctx, topic.IAM(), "pubsub.topics.get"); !ok {
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t.Errorf("topic IAM: %s", msg)
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}
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if msg, ok := testIAM(ctx, sub.IAM(), "pubsub.subscriptions.get"); !ok {
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t.Errorf("sub IAM: %s", msg)
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}
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snap, err := sub.createSnapshot(ctx, "")
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if err != nil {
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t.Fatalf("CreateSnapshot error: %v", err)
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}
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timeoutCtx, _ = context.WithTimeout(ctx, time.Minute)
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err = internal.Retry(timeoutCtx, gax.Backoff{}, func() (bool, error) {
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snapIt := client.snapshots(timeoutCtx)
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for {
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s, err := snapIt.Next()
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if err == nil && s.name == snap.name {
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return true, nil
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}
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if err == iterator.Done {
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return false, fmt.Errorf("cannot find snapshot: %q", snap.name)
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}
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if err != nil {
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return false, err
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}
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}
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})
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if err != nil {
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t.Error(err)
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}
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err = internal.Retry(timeoutCtx, gax.Backoff{}, func() (bool, error) {
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err := sub.seekToSnapshot(timeoutCtx, snap.snapshot)
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return err == nil, err
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})
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if err != nil {
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t.Error(err)
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}
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err = internal.Retry(timeoutCtx, gax.Backoff{}, func() (bool, error) {
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err := sub.seekToTime(timeoutCtx, time.Now())
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return err == nil, err
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})
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if err != nil {
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t.Error(err)
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}
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err = internal.Retry(timeoutCtx, gax.Backoff{}, func() (bool, error) {
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snapHandle := client.snapshot(snap.ID())
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err := snapHandle.delete(timeoutCtx)
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return err == nil, err
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})
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if err != nil {
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t.Error(err)
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}
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if err := sub.Delete(ctx); err != nil {
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t.Errorf("DeleteSub error: %v", err)
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}
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if err := topic.Delete(ctx); err != nil {
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t.Errorf("DeleteTopic error: %v", err)
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}
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}
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// IAM tests.
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// NOTE: for these to succeed, the test runner identity must have the Pub/Sub Admin or Owner roles.
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// To set, visit https://console.developers.google.com, select "IAM & Admin" from the top-left
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// menu, choose the account, click the Roles dropdown, and select "Pub/Sub > Pub/Sub Admin".
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// TODO(jba): move this to a testing package within cloud.google.com/iam, so we can re-use it.
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func testIAM(ctx context.Context, h *iam.Handle, permission string) (msg string, ok bool) {
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// Attempting to add an non-existent identity (e.g. "alice@example.com") causes the service
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// to return an internal error, so use a real identity.
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const member = "domain:google.com"
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var policy *iam.Policy
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var err error
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if policy, err = h.Policy(ctx); err != nil {
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return fmt.Sprintf("Policy: %v", err), false
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}
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// The resource is new, so the policy should be empty.
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if got := policy.Roles(); len(got) > 0 {
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return fmt.Sprintf("initially: got roles %v, want none", got), false
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}
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// Add a member, set the policy, then check that the member is present.
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policy.Add(member, iam.Viewer)
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if err := h.SetPolicy(ctx, policy); err != nil {
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return fmt.Sprintf("SetPolicy: %v", err), false
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}
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if policy, err = h.Policy(ctx); err != nil {
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return fmt.Sprintf("Policy: %v", err), false
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}
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if got, want := policy.Members(iam.Viewer), []string{member}; !reflect.DeepEqual(got, want) {
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return fmt.Sprintf("after Add: got %v, want %v", got, want), false
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}
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// Now remove that member, set the policy, and check that it's empty again.
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policy.Remove(member, iam.Viewer)
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if err := h.SetPolicy(ctx, policy); err != nil {
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return fmt.Sprintf("SetPolicy: %v", err), false
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}
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if policy, err = h.Policy(ctx); err != nil {
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return fmt.Sprintf("Policy: %v", err), false
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}
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if got := policy.Roles(); len(got) > 0 {
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return fmt.Sprintf("after Remove: got roles %v, want none", got), false
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}
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// Call TestPermissions.
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// Because this user is an admin, it has all the permissions on the
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// resource type. Note: the service fails if we ask for inapplicable
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// permissions (e.g. a subscription permission on a topic, or a topic
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// create permission on a topic rather than its parent).
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wantPerms := []string{permission}
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gotPerms, err := h.TestPermissions(ctx, wantPerms)
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if err != nil {
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return fmt.Sprintf("TestPermissions: %v", err), false
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}
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if !reflect.DeepEqual(gotPerms, wantPerms) {
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return fmt.Sprintf("TestPermissions: got %v, want %v", gotPerms, wantPerms), false
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}
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return "", true
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}
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func TestSubscriptionUpdate(t *testing.T) {
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t.Parallel()
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ctx := context.Background()
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client := integrationTestClient(t, ctx)
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defer client.Close()
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topic, err := client.CreateTopic(ctx, topicIDs.New())
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if err != nil {
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t.Fatalf("CreateTopic error: %v", err)
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}
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defer topic.Stop()
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defer topic.Delete(ctx)
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var sub *Subscription
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if sub, err = client.CreateSubscription(ctx, subIDs.New(), SubscriptionConfig{Topic: topic}); err != nil {
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t.Fatalf("CreateSub error: %v", err)
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}
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defer sub.Delete(ctx)
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sc, err := sub.Config(ctx)
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if err != nil {
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t.Fatal(err)
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}
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if !reflect.DeepEqual(sc.PushConfig, PushConfig{}) {
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t.Fatalf("got %+v, want empty PushConfig")
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}
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// Add a PushConfig.
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projID := testutil.ProjID()
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pc := PushConfig{
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Endpoint: "https://" + projID + ".appspot.com/_ah/push-handlers/push",
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Attributes: map[string]string{"x-goog-version": "v1"},
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}
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sc, err = sub.Update(ctx, SubscriptionConfigToUpdate{PushConfig: &pc})
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if err != nil {
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t.Fatal(err)
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}
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// Despite the docs which say that Get always returns a valid "x-goog-version"
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// attribute, none is returned. See
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// https://cloud.google.com/pubsub/docs/reference/rpc/google.pubsub.v1#google.pubsub.v1.PushConfig
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pc.Attributes = nil
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if got, want := sc.PushConfig, pc; !reflect.DeepEqual(got, want) {
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t.Fatalf("setting push config: got\n%+v\nwant\n%+v", got, want)
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}
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// Remove the PushConfig, turning the subscription back into pull mode.
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pc = PushConfig{}
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sc, err = sub.Update(ctx, SubscriptionConfigToUpdate{PushConfig: &pc})
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if err != nil {
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t.Fatal(err)
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}
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if got, want := sc.PushConfig, pc; !reflect.DeepEqual(got, want) {
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t.Fatalf("removing push config: got\n%+v\nwant %+v", got, want)
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}
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// If nothing changes, our client returns an error.
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_, err = sub.Update(ctx, SubscriptionConfigToUpdate{})
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if err == nil {
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t.Fatal("got nil, wanted error")
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}
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}
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func TestPublicTopic(t *testing.T) {
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t.Parallel()
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ctx := context.Background()
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client := integrationTestClient(t, ctx)
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defer client.Close()
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sub, err := client.CreateSubscription(ctx, subIDs.New(), SubscriptionConfig{
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Topic: client.TopicInProject("taxirides-realtime", "pubsub-public-data"),
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})
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if err != nil {
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t.Fatal(err)
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}
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defer sub.Delete(ctx)
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// Confirm that Receive works. It doesn't matter if we actually get any
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// messages.
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ctxt, cancel := context.WithTimeout(ctx, 5*time.Second)
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err = sub.Receive(ctxt, func(_ context.Context, msg *Message) {
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msg.Ack()
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cancel()
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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