diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 6fbe39a..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,10 +0,0 @@
-language: go
-
-go:
-  - "1.15"
-
-script:
-  - go test -race -coverprofile=coverage.txt -coverpkg=./... -covermode=atomic ./...
-
-after_success:
-  - bash <(curl -s https://codecov.io/bash)
diff --git a/internal/multiplex/datagramBufferedPipe_test.go b/internal/multiplex/datagramBufferedPipe_test.go
index f03cff0..4a5d4e2 100644
--- a/internal/multiplex/datagramBufferedPipe_test.go
+++ b/internal/multiplex/datagramBufferedPipe_test.go
@@ -76,7 +76,7 @@ func TestDatagramBuffer_BlockingRead(t *testing.T) {
 	pipe := NewDatagramBufferedPipe()
 	b := []byte{0x01, 0x02, 0x03}
 	go func() {
-		time.Sleep(100 * time.Millisecond)
+		time.Sleep(readBlockTime)
 		pipe.Write(Frame{Payload: b})
 	}()
 	b2 := make([]byte, len(b))
diff --git a/internal/multiplex/mux_test.go b/internal/multiplex/mux_test.go
index 436c407..d3deaf9 100644
--- a/internal/multiplex/mux_test.go
+++ b/internal/multiplex/mux_test.go
@@ -12,6 +12,8 @@ import (
 	"time"
 )
 
+const eventualConsistencyTolerance = 500 * time.Millisecond
+
 func serveEcho(l net.Listener) {
 	for {
 		conn, err := l.Accept()
@@ -111,6 +113,8 @@ func TestMultiplex(t *testing.T) {
 
 	//test echo
 	runEchoTest(t, streams, maxMsgLen)
+
+	time.Sleep(eventualConsistencyTolerance)
 	if clientSession.streamCount() != numStreams {
 		t.Errorf("client stream count is wrong: %v", clientSession.streamCount())
 	}
@@ -148,7 +152,7 @@ func TestMux_StreamClosing(t *testing.T) {
 		t.Errorf("can't write to stream: %v", err)
 	}
 
-	time.Sleep(500 * time.Millisecond)
+	time.Sleep(eventualConsistencyTolerance)
 	_ = toBeClosed.Close()
 	_, err = io.ReadFull(toBeClosed, recvBuf)
 	if err != nil {
diff --git a/internal/multiplex/session_test.go b/internal/multiplex/session_test.go
index 52fe6a5..79d62b5 100644
--- a/internal/multiplex/session_test.go
+++ b/internal/multiplex/session_test.go
@@ -408,7 +408,7 @@ func TestSession_timeoutAfter(t *testing.T) {
 	seshConfigOrdered.Obfuscator = obfuscator
 	seshConfigOrdered.InactivityTimeout = 100 * time.Millisecond
 	sesh := MakeSession(0, seshConfigOrdered)
-	time.Sleep(200 * time.Millisecond)
+	time.Sleep(2 * seshConfigOrdered.InactivityTimeout)
 	if !sesh.IsClosed() {
 		t.Error("session should have timed out")
 	}
diff --git a/internal/multiplex/streamBufferedPipe_test.go b/internal/multiplex/streamBufferedPipe_test.go
index dcaad29..ff0ec24 100644
--- a/internal/multiplex/streamBufferedPipe_test.go
+++ b/internal/multiplex/streamBufferedPipe_test.go
@@ -7,6 +7,8 @@ import (
 	"time"
 )
 
+const readBlockTime = 500 * time.Millisecond
+
 func TestPipeRW(t *testing.T) {
 	pipe := NewStreamBufferedPipe()
 	b := []byte{0x01, 0x02, 0x03}
@@ -60,7 +62,7 @@ func TestReadBlock(t *testing.T) {
 	pipe := NewStreamBufferedPipe()
 	b := []byte{0x01, 0x02, 0x03}
 	go func() {
-		time.Sleep(100 * time.Millisecond)
+		time.Sleep(readBlockTime)
 		pipe.Write(b)
 	}()
 	b2 := make([]byte, len(b))
diff --git a/internal/multiplex/stream_test.go b/internal/multiplex/stream_test.go
index 278082b..9527034 100644
--- a/internal/multiplex/stream_test.go
+++ b/internal/multiplex/stream_test.go
@@ -230,7 +230,7 @@ func TestStream_Close(t *testing.T) {
 		if err != nil {
 			t.Errorf("can't read residual data %v", err)
 		}
-		time.Sleep(100 * time.Millisecond)
+		time.Sleep(eventualConsistencyTolerance)
 		if sI, _ := sesh.streams.Load(stream.(*Stream).id); sI != nil {
 			t.Error("stream still exists")
 			return
diff --git a/internal/multiplex/switchboard_test.go b/internal/multiplex/switchboard_test.go
index e052b55..01d55ae 100644
--- a/internal/multiplex/switchboard_test.go
+++ b/internal/multiplex/switchboard_test.go
@@ -145,7 +145,7 @@ func TestSwitchboard_CloseOnOneDisconn(t *testing.T) {
 	sesh.AddConnection(conn1client)
 
 	conn0server.Close()
-	time.Sleep(500 * time.Millisecond)
+	time.Sleep(eventualConsistencyTolerance)
 	if !sesh.IsClosed() {
 		t.Error("session not closed after one conn is disconnected")
 		return
@@ -178,7 +178,7 @@ func TestSwitchboard_ConnsCount(t *testing.T) {
 
 	sesh.sb.closeAll()
 
-	time.Sleep(500 * time.Millisecond)
+	time.Sleep(eventualConsistencyTolerance)
 	if sesh.sb.connsCount() != 0 {
 		t.Error("connsCount incorrect")
 	}