test: fix duplicate test in all build (#1227)

cassandra_test.go

@@ -1514,48 +1514,6 @@ func TestPrepare_PreparedCacheEviction(t *testing.T) {
 	}
 }
 
-func TestWriteFailure(t *testing.T) {
-	if flagCassVersion.Major == 0 || flagCassVersion.Before(3, 11, 0) {
-		t.Skipf("write failure can only be tested against Cassandra 3.11 or higher version=%v", flagCassVersion)
-	}
-	cluster := createCluster()
-	createKeyspace(t, cluster, "test")
-	cluster.Keyspace = "test"
-	session, err := cluster.CreateSession()
-	if err != nil {
-		t.Fatal("create session:", err)
-	}
-	defer session.Close()
-
-	if err := createTable(session, "CREATE TABLE test.test (id int,value int,PRIMARY KEY (id))"); err != nil {
-		t.Fatalf("failed to create table with error '%v'", err)
-	}
-	if err := session.Query(`INSERT INTO test.test (id, value) VALUES (1, 1)`).Exec(); err != nil {
-		errWrite, ok := err.(*RequestErrWriteFailure)
-		if ok {
-			if session.cfg.ProtoVersion >= 5 {
-				// ErrorMap should be filled with some hosts that should've errored
-				if len(errWrite.ErrorMap) == 0 {
-					t.Fatal("errWrite.ErrorMap should have some failed hosts but it didn't have any")
-				}
-			} else {
-				// Map doesn't get filled for V4
-				if len(errWrite.ErrorMap) != 0 {
-					t.Fatal("errWrite.ErrorMap should have length 0, it's: ", len(errWrite.ErrorMap))
-				}
-			}
-		} else {
-			t.Fatal("error should be RequestErrWriteFailure, it's: ", errWrite)
-		}
-	} else {
-		t.Fatal("a write fail error should have happened when querying test keyspace")
-	}
-
-	if err = session.Query("DROP KEYSPACE test").Exec(); err != nil {
-		t.Fatal(err)
-	}
-}
-
 func TestPrepare_PreparedCacheKey(t *testing.T) {
 	session := createSession(t)
 	defer session.Close()