GODRIVER-2986 [master] Resolve failures in Race Detector Test (mongod…

…b#1392)

Co-authored-by: Preston Vasquez <prestonvasquez@icloud.com>

mongo/integration/change_stream_test.go

@@ -770,7 +770,7 @@ func TestChangeStream_ReplicaSet(t *testing.T) {
 			require.NoError(mt, err, "failed to update idValue")
 		}()
 
-		nextCtx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
+		nextCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
 		t.Cleanup(cancel)
 
 		type splitEvent struct {

mongo/integration/unified/client_entity.go

@@ -66,6 +66,7 @@ type clientEntity struct {
 
 	eventsCountLock                         sync.RWMutex
 	serverDescriptionChangedEventsCountLock sync.RWMutex
+	eventProcessMu                          sync.RWMutex
 
 	entityMap *EntityMap
 
@@ -471,6 +472,9 @@ func (c *clientEntity) processPoolEvent(evt *event.PoolEvent) {
 }
 
 func (c *clientEntity) processServerDescriptionChangedEvent(evt *event.ServerDescriptionChangedEvent) {
+	c.eventProcessMu.Lock()
+	defer c.eventProcessMu.Unlock()
+
 	if !c.getRecordEvents() {
 		return
 	}
@@ -487,6 +491,9 @@ func (c *clientEntity) processServerDescriptionChangedEvent(evt *event.ServerDes
 }
 
 func (c *clientEntity) processServerHeartbeatFailedEvent(evt *event.ServerHeartbeatFailedEvent) {
+	c.eventProcessMu.Lock()
+	defer c.eventProcessMu.Unlock()
+
 	if !c.getRecordEvents() {
 		return
 	}
@@ -499,6 +506,9 @@ func (c *clientEntity) processServerHeartbeatFailedEvent(evt *event.ServerHeartb
 }
 
 func (c *clientEntity) processServerHeartbeatStartedEvent(evt *event.ServerHeartbeatStartedEvent) {
+	c.eventProcessMu.Lock()
+	defer c.eventProcessMu.Unlock()
+
 	if !c.getRecordEvents() {
 		return
 	}
@@ -511,6 +521,9 @@ func (c *clientEntity) processServerHeartbeatStartedEvent(evt *event.ServerHeart
 }
 
 func (c *clientEntity) processServerHeartbeatSucceededEvent(evt *event.ServerHeartbeatSucceededEvent) {
+	c.eventProcessMu.Lock()
+	defer c.eventProcessMu.Unlock()
+
 	if !c.getRecordEvents() {
 		return
 	}
@@ -523,6 +536,9 @@ func (c *clientEntity) processServerHeartbeatSucceededEvent(evt *event.ServerHea
 }
 
 func (c *clientEntity) processTopologyDescriptionChangedEvent(evt *event.TopologyDescriptionChangedEvent) {
+	c.eventProcessMu.Lock()
+	defer c.eventProcessMu.Unlock()
+
 	if !c.getRecordEvents() {
 		return
 	}

mongo/integration/unified/logger.go

@@ -7,6 +7,8 @@
 package unified
 
 import (
+	"sync"
+
 	"go.mongodb.org/mongo-driver/internal/logger"
 )
 
@@ -20,9 +22,19 @@ type orderedLogMessage struct {
 // Logger is the Sink used to captured log messages for logger verification in
 // the unified spec tests.
 type Logger struct {
+	// bufSize is the number of logs expected to be sent to the logger for a
+	// unified spec test.
+	bufSize int
+
+	// lastOrder increments each time the "Info" method is called, and is used to
+	// determine when to close the logQueue.
 	lastOrder int
-	logQueue  chan orderedLogMessage
-	bufSize   int
+
+	// orderMu guards the order value, which increments each time the "Info"
+	// method is called. This is necessary since "Info" could be called from
+	// multiple go routines, e.g. SDAM logs.
+	orderMu  sync.RWMutex
+	logQueue chan orderedLogMessage
 }
 
 func newLogger(olm *observeLogMessages, bufSize int) *Logger {
@@ -44,14 +56,17 @@ func (log *Logger) Info(level int, msg string, args ...interface{}) {
 		return
 	}
 
-	defer func() { log.lastOrder++ }()
-
 	// If the order is greater than the buffer size, we must return. This
 	// would indicate that the logQueue channel has been closed.
 	if log.lastOrder > log.bufSize {
 		return
 	}
 
+	log.orderMu.Lock()
+	defer log.orderMu.Unlock()
+
+	defer func() { log.lastOrder++ }()
+
 	// Add the Diff back to the level, as there is no need to create a
 	// logging offset.
 	level = level + logger.DiffToInfo
@@ -68,7 +83,7 @@ func (log *Logger) Info(level int, msg string, args ...interface{}) {
 		logMessage: logMessage,
 	}
 
-	// If the order has reached the buffer size, then close the channe.
+	// If the order has reached the buffer size, then close the channel.
 	if log.lastOrder == log.bufSize {
 		close(log.logQueue)
 	}

mongo/integration/unified/unified_spec_runner.go

@@ -224,7 +224,7 @@ func (tc *TestCase) Run(ls LoggerSkipper) error {
 	}
 
 	// Count the number of expected log messages over all clients.
-	expectedLogCount := 0
+	var expectedLogCount int
 	for _, clientLog := range tc.ExpectLogMessages {
 		expectedLogCount += len(clientLog.LogMessages)
 	}