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// Copyright 2019 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 testutil_test
import (
"testing"
"cloud.google.com/go/pubsub/internal/testutil"
)
func TestVerifyKeyOrdering(t *testing.T) {
for _, tc := range []struct {
name string
publishedMsgs []testutil.OrderedKeyMsg
receivedMsgs []testutil.OrderedKeyMsg
wantErr bool
}{
{
name: "correct despite different ordering",
publishedMsgs: []testutil.OrderedKeyMsg{
{Key: "some-key-1", Data: "some-datum-1"},
{Key: "some-key-2", Data: "some-datum-1"},
{Key: "some-key-1", Data: "some-datum-2"},
{Key: "some-key-3", Data: "some-datum-1"},
{Key: "some-key-1", Data: "some-datum-3"},
{Key: "some-key-4", Data: "some-datum-1"},
},
receivedMsgs: []testutil.OrderedKeyMsg{
{Key: "some-key-2", Data: "some-datum-1"},
{Key: "some-key-1", Data: "some-datum-1"},
{Key: "some-key-3", Data: "some-datum-1"},
{Key: "some-key-4", Data: "some-datum-1"},
{Key: "some-key-1", Data: "some-datum-2"},
{Key: "some-key-1", Data: "some-datum-3"},
},
wantErr: false,
},
{
name: "received something we didnt publish",
publishedMsgs: []testutil.OrderedKeyMsg{
{Key: "some-key-1", Data: "some-datum-1"},
},
receivedMsgs: []testutil.OrderedKeyMsg{
{Key: "some-key-1", Data: "some-datum-2"},
},
wantErr: true,
},
{
name: "published message missing",
publishedMsgs: []testutil.OrderedKeyMsg{
{Key: "some-key-1", Data: "some-datum-1"},
},
receivedMsgs: []testutil.OrderedKeyMsg{},
wantErr: true,
},
// TODO(deklerk): account for consistent redelivery.
//{
// name: "correct despite consistent redlivery",
// publishedMsgs: []testutil.OrderedKeyMsg{
// {Key: "some-key-1", Data: "some-datum-1"},
// {Key: "some-key-1", Data: "some-datum-2"},
// {Key: "some-key-1", Data: "some-datum-3"},
// {Key: "some-key-1", Data: "some-datum-4"},
// {Key: "some-key-1", Data: "some-datum-5"},
// },
// // Messages 2 and 3 are redelivered twice.
// receivedMsgs: []testutil.OrderedKeyMsg{
// {Key: "some-key-1", Data: "some-datum-1"},
// {Key: "some-key-1", Data: "some-datum-2"},
// {Key: "some-key-1", Data: "some-datum-3"},
// {Key: "some-key-1", Data: "some-datum-2"},
// {Key: "some-key-1", Data: "some-datum-3"},
// {Key: "some-key-1", Data: "some-datum-2"},
// {Key: "some-key-1", Data: "some-datum-3"},
// {Key: "some-key-1", Data: "some-datum-4"},
// {Key: "some-key-1", Data: "some-datum-5"},
// },
// wantErr: true,
//},
} {
t.Run(tc.name, func(t *testing.T) {
err := testutil.VerifyKeyOrdering(tc.publishedMsgs, tc.receivedMsgs)
if tc.wantErr {
if err == nil {
t.Fatal("wanted err, but got nil")
}
} else {
if err != nil {
t.Fatalf("wanted nil, got err:\n\t%v", err)
}
}
})
}
}
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