run tests against unsafe tag as well (#1159)

* run tests against unsafe tag as well

* differentiate test step name

* use random transactional id

Author: rhansen2

.circleci/config.yml

@@ -51,6 +51,9 @@ jobs:
     - run:
         name: Test kafka-go
         command: go test -race -cover ./...
+    - run:
+        name: Test kafka-go unsafe
+        command: go test -tags=unsafe -race -cover ./...
     - run:
         name: Test kafka-go/sasl/aws_msk_iam
         working_directory: ./sasl/aws_msk_iam

initproducerid_test.go

@@ -18,7 +18,7 @@ func TestClientInitProducerId(t *testing.T) {
 	client, shutdown := newLocalClient()
 	defer shutdown()
 
-	tid := "transaction1"
+	tid := makeTransactionalID()
 	// Wait for kafka setup and Coordinator to be available.
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()