group imports
diff --git a/chunk/in_memory_test.go b/chunk/in_memory_test.go
index 04b8a09..7970d14 100644
--- a/chunk/in_memory_test.go
+++ b/chunk/in_memory_test.go
@@ -1,7 +1,9 @@
 package chunk
 
-import "bytes"
-import "testing"
+import (
+	"bytes"
+	"testing"
+)
 
 func TestConcurrentReads(t *testing.T) {
 	c := InMemoryChunkFactory{}.New()