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connection_test.go
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/
connection_test.go
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package cherami
import (
"errors"
"io"
"sync/atomic"
"testing"
"time"
_ "fmt"
_ "strconv"
"github.com/pborman/uuid"
"github.com/uber/cherami-client-go/common"
"github.com/uber/cherami-client-go/common/metrics"
mc "github.com/uber/cherami-client-go/mocks/clients/cherami"
"github.com/uber/cherami-thrift/.generated/go/cherami"
log "github.com/Sirupsen/logrus"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/require"
"github.com/stretchr/testify/suite"
"github.com/uber-common/bark"
)
type ConnectionSuite struct {
*require.Assertions // override suite.Suite.Assertions with require.Assertions; this means that s.NotNil(nil) will stop the test, not merely log an error
suite.Suite
}
func TestConnectionSuite(t *testing.T) {
suite.Run(t, new(ConnectionSuite))
}
func (s *ConnectionSuite) SetupTest() {
s.Assertions = require.New(s.T()) // Have to define our overridden assertions in the test setup. If we did it earlier, s.T() will return nil
}
func (s *ConnectionSuite) TestSuccess() {
conn, inputHostClient, messagesCh := createConnection()
// Setup inputHostClient mock for successful message
inputHostClient.On("Write", mock.Anything).Return(nil)
inputHostClient.On("Flush").Return(nil)
inputHostClient.On("Read").Return(wrapAckInCommand(&cherami.PutMessageAck{
ID: common.StringPtr("1"),
Status: common.CheramiStatusPtr(cherami.Status_OK),
}), nil)
conn.open()
s.True(conn.isOpened(), "Connection not opened.")
message := &cherami.PutMessage{
ID: common.StringPtr("1"),
Data: []byte("test"),
}
requestDone := make(chan *PublisherReceipt, 1)
messagesCh <- putMessageRequest{message, requestDone}
receipt := <-requestDone
s.Equal(*message.ID, receipt.ID)
s.Nil(receipt.Error, "Expected the message to be written successfully.")
// TODO: mock assert expectations is not working for some reason.
//inputHostClient.AssertExpectations(s.T())
}
func (s *ConnectionSuite) TestFailedResponse() {
conn, inputHostClient, messagesCh := createConnection()
// Setup inputHostClient mock for successful message
inputHostClient.On("Write", mock.Anything).Return(nil)
inputHostClient.On("Flush").Return(nil)
inputHostClient.On("Read").Return(wrapAckInCommand(&cherami.PutMessageAck{
ID: common.StringPtr("1"),
Status: common.CheramiStatusPtr(cherami.Status_FAILED),
Message: common.StringPtr("Failed"),
}), nil)
conn.open()
s.True(conn.isOpened(), "Connection not opened.")
message := &cherami.PutMessage{
ID: common.StringPtr("1"),
Data: []byte("test"),
}
requestDone := make(chan *PublisherReceipt, 1)
messagesCh <- putMessageRequest{message, requestDone}
receipt := <-requestDone
s.Equal(*message.ID, receipt.ID)
s.NotNil(receipt.Error)
s.Equal("Failed", receipt.Error.Error())
// TODO: mock assert expectations is not working for some reason.
//inputHostClient.AssertExpectations(s.T())
}
func (s *ConnectionSuite) TestWriteFailed() {
conn, inputHostClient, messagesCh := createConnection()
// Setup inputHostClient mock for successful message
inputHostClient.On("Write", mock.Anything).Return(errors.New("Failed"))
inputHostClient.On("Done").Return(nil)
conn.open()
s.True(conn.isOpened(), "Connection not opened.")
message := &cherami.PutMessage{
ID: common.StringPtr("1"),
Data: []byte("test"),
}
requestDone := make(chan *PublisherReceipt, 1)
messagesCh <- putMessageRequest{message, requestDone}
receipt := <-requestDone
s.Equal(*message.ID, receipt.ID)
s.NotNil(receipt.Error)
s.Equal("Failed", receipt.Error.Error())
// TODO: mock assert expectations is not working for some reason.
//inputHostClient.AssertExpectations(s.T())
}
func (s *ConnectionSuite) TestFlushFailed() {
conn, inputHostClient, messagesCh := createConnection()
// Setup inputHostClient mock for successful message
inputHostClient.On("Write", mock.Anything).Return(nil)
inputHostClient.On("Flush").Return(errors.New("Failed"))
inputHostClient.On("Done", mock.Anything).Return(nil)
conn.open()
s.True(conn.isOpened(), "Connection not opened.")
message := &cherami.PutMessage{
ID: common.StringPtr("1"),
Data: []byte("test"),
}
requestDone := make(chan *PublisherReceipt, 1)
messagesCh <- putMessageRequest{message, requestDone}
receipt := <-requestDone
s.Equal(*message.ID, receipt.ID)
s.NotNil(receipt.Error)
s.Equal("Failed", receipt.Error.Error())
// TODO: mock assert expectations is not working for some reason.
//inputHostClient.AssertExpectations(s.T())
}
func (s *ConnectionSuite) TestAckClosedByInputHost() {
conn, inputHostClient, messagesCh := createConnection()
// Setup inputHostClient mock for successful message
inputHostClient.On("Write", mock.Anything).Return(nil)
inputHostClient.On("Flush").Return(nil)
inputHostClient.On("Read").Return(nil, io.EOF)
inputHostClient.On("Done").Return(nil)
conn.open()
s.True(conn.isOpened(), "Connection not opened.")
message := &cherami.PutMessage{
ID: common.StringPtr("1"),
Data: []byte("test"),
}
requestDone := make(chan *PublisherReceipt, 1)
messagesCh <- putMessageRequest{message, requestDone}
receipt := <-requestDone
s.Equal(*message.ID, receipt.ID)
s.NotNil(receipt.Error)
s.IsType(&ackChannelClosedError{}, receipt.Error)
// TODO: mock assert expectations is not working for some reason.
//inputHostClient.AssertExpectations(s.T())
}
func (s *ConnectionSuite) TestClientDrain() {
conn, inputHostClient, messagesCh := createConnection()
appendTicker := time.NewTicker(5 * time.Millisecond)
defer appendTicker.Stop()
// setup inputhost to send a DRAIN command and then an EOF
inputHostClient.On("Write", mock.Anything).Return(nil)
inputHostClient.On("Flush").Return(nil)
inputHostClient.On("Read").Return(wrapDrainInCommand(&cherami.ReconfigureInfo{
UpdateUUID: common.StringPtr(uuid.New()),
}), nil).WaitUntil(appendTicker.C).Once()
inputHostClient.On("Read").Return(nil, io.EOF).Once()
inputHostClient.On("Done").Return(nil)
conn.open()
s.True(conn.isOpened(), "Connection not opened.")
message := &cherami.PutMessage{
ID: common.StringPtr("1"),
Data: []byte("test"),
}
requestDone := make(chan *PublisherReceipt, 1)
messagesCh <- putMessageRequest{message, requestDone}
<-time.After(10 * time.Millisecond)
// drain must be set
s.Equal(int32(1), atomic.LoadInt32(&conn.drained))
// closed must return true as well
s.True(conn.isClosed())
}
func (s *ConnectionSuite) TestClientClosed() {
conn, inputHostClient, messagesCh := createConnection()
// Setup inputHostClient mock for successful message
inputHostClient.On("Write", mock.Anything).Return(nil)
inputHostClient.On("Flush").Return(nil)
inputHostClient.On("Read").Return(wrapAckInCommand(&cherami.PutMessageAck{
ID: common.StringPtr("1"),
Status: common.CheramiStatusPtr(cherami.Status_OK),
}), nil).After(10 * time.Millisecond).WaitUntil(time.After(100 * time.Millisecond))
inputHostClient.On("Done").Return(nil)
conn.open()
s.True(conn.isOpened(), "Connection not opened.")
message := &cherami.PutMessage{
ID: common.StringPtr("1"),
Data: []byte("test"),
}
requestDone := make(chan *PublisherReceipt, 1)
messagesCh <- putMessageRequest{message, requestDone}
<-time.After(10 * time.Millisecond)
conn.close()
receipt := <-requestDone
s.Equal(*message.ID, receipt.ID)
s.Nil(receipt.Error, "Expected the message to be written successfully.")
s.True(conn.isClosed())
// TODO: mock assert expectations is not working for some reason.
//inputHostClient.AssertExpectations(s.T())
}
func (s *ConnectionSuite) TestOutOfOrderAcks() {
conn, inputHostClient, messagesCh := createConnection()
// Setup inputHostClient mock for successful message
inputHostClient.On("Write", mock.Anything).Return(nil)
inputHostClient.On("Flush").Return(nil)
inputHostClient.On("Read").Return(wrapAckInCommand(&cherami.PutMessageAck{
ID: common.StringPtr("2"),
Status: common.CheramiStatusPtr(cherami.Status_OK),
}), nil).Once()
inputHostClient.On("Read").Return(wrapAckInCommand(&cherami.PutMessageAck{
ID: common.StringPtr("1"),
Status: common.CheramiStatusPtr(cherami.Status_OK),
}), nil).Once()
inputHostClient.On("Done").Return(nil)
conn.open()
s.True(conn.isOpened(), "Connection not opened.")
message1 := &cherami.PutMessage{
ID: common.StringPtr("1"),
Data: []byte("test"),
}
requestDone1 := make(chan *PublisherReceipt, 1)
messagesCh <- putMessageRequest{message1, requestDone1}
message2 := &cherami.PutMessage{
ID: common.StringPtr("2"),
Data: []byte("test"),
}
requestDone2 := make(chan *PublisherReceipt, 1)
messagesCh <- putMessageRequest{message2, requestDone2}
receipt2 := <-requestDone2
s.Equal(*message2.ID, receipt2.ID)
receipt1 := <-requestDone1
s.Equal(*message1.ID, receipt1.ID)
conn.close()
s.True(conn.isClosed())
// TODO: mock assert expectations is not working for some reason.
//inputHostClient.AssertExpectations(s.T())
}
// TODO: Figure out a way to test multiple messages with mocks
/*func (s *ConnectionSuite) TestManySuccess() {
numberOfMessages := 10
conn, inputHostClient, messagesCh := createConnection()
w := make(chan time.Time)
// Setup inputHostClient mock for successful message
inputHostClient.On("Write", mock.Anything).Return(nil).Times(numberOfMessages)
inputHostClient.On("Flush").Return(nil).Times(numberOfMessages)
for i := 0; i < numberOfMessages; i++ {
inputHostClient.On("Read").Return(&cherami.PutMessageAck{
ID: common.StringPtr(strconv.Itoa(i)),
Status: common.CheramiStatusPtr(cherami.Status_OK),
}, nil).WaitUntil(w).Once()
//.After(3 * time.Second).Once()
}
conn.Open()
s.True(conn.opened, "Connection not opened.")
done := make(chan bool, numberOfMessages)
for i := 0; i < numberOfMessages; i++ {
go func(id int) {
fmt.Printf("Writing message with id: %d\n", id)
message := &cherami.PutMessage{
ID: strconv.Itoa(id),
Data: []byte("test"),
}
requestDone := make(chan error, 1)
messagesCh <- PutMessageRequest{message, requestDone}
w <- time.Now()
err := <-requestDone
fmt.Printf("Got response for message id: %d\n", id)
s.Nil(err, "Expected the message to be written successfully.")
fmt.Printf("Go Routine for id '%d' setting done.\n", id)
done<- true
}(i)
}
for i := 0; i < 10; i++ {
fmt.Printf("Waiting for message: %d\n", i)
<-done
fmt.Printf("Received message: %d\n", i)
}
// TODO: mock assert expectations is not working for some reason.
//inputHostClient.AssertExpectations(s.T())
}*/
func createConnection() (*connection, *mc.MockBInOpenPublisherStreamOutCall, chan putMessageRequest) {
host := "testHost"
messagesCh := make(chan putMessageRequest)
reconfigureCh := make(chan reconfigureInfo, 10)
inputHostClient := new(mc.MockTChanBInClient)
wsConnector := new(mc.MockWSConnector)
stream := new(mc.MockBInOpenPublisherStreamOutCall)
inputHostClient.On("OpenPublisherStream", mock.Anything).Return(stream, nil)
wsConnector.On("OpenPublisherStream", mock.Anything, mock.Anything).Return(stream, nil)
return newConnection(
inputHostClient,
wsConnector,
"/test/inputhostconnection",
messagesCh,
reconfigureCh,
host,
cherami.Protocol_WS,
0,
bark.NewLoggerFromLogrus(log.StandardLogger()),
metrics.NewTestReporter(nil)),
stream,
messagesCh
}
func wrapAckInCommand(ack *cherami.PutMessageAck) *cherami.InputHostCommand {
cmd := cherami.NewInputHostCommand()
cmd.Type = common.CheramiInputHostCommandTypePtr(cherami.InputHostCommandType_ACK)
cmd.Ack = ack
return cmd
}
func wrapDrainInCommand(reconfigure *cherami.ReconfigureInfo) *cherami.InputHostCommand {
cmd := cherami.NewInputHostCommand()
cmd.Type = common.CheramiInputHostCommandTypePtr(cherami.InputHostCommandType_DRAIN)
cmd.Reconfigure = reconfigure
return cmd
}