fix tests

Author: chernser

clickhouse-jdbc/src/test/java/com/clickhouse/jdbc/internal/ClickHouseConnectionImplTest.java

@@ -12,9 +12,15 @@
 
 import org.testng.Assert;
 import org.testng.annotations.BeforeClass;
+import org.testng.annotations.BeforeMethod;
 import org.testng.annotations.Test;
 
+@Test(groups = "integration")
 public class ClickHouseConnectionImplTest extends JdbcIntegrationTest {
+    @BeforeMethod(groups = "integration")
+    public void setV1() {
+        System.setProperty("clickhouse.jdbc.v1","true");
+    }
     @Test(groups = "integration")
     public void testManualCommit() throws SQLException {
         if (isCloud()) return; //TODO: testManualCommit - Revisit, see: https://github.com/ClickHouse/clickhouse-java/issues/1747

client-v2/src/test/java/com/clickhouse/client/query/QueryTests.java

@@ -315,7 +315,8 @@ public void testQueryAll() throws Exception {
     public void testQueryAllSimple() throws Exception {
         testQueryAllSimple(10);
     }
-    public void testQueryAllSimple(int numberOfRecords) throws Exception {
+
+    void testQueryAllSimple(int numberOfRecords) throws Exception {
         GenericRecord record = client.queryAll("SELECT number FROM system.numbers LIMIT " + numberOfRecords).stream().findFirst().get();
         Assert.assertNotNull(record);
     }
@@ -1305,7 +1306,7 @@ private static String sq(String str) {
         return "\'" + str + "\'";
     }
 
-    public void testDataTypes(List<String> columns, List<Supplier<String>> valueGenerators, List<Consumer<ClickHouseBinaryFormatReader>> verifiers) {
+    void testDataTypes(List<String> columns, List<Supplier<String>> valueGenerators, List<Consumer<ClickHouseBinaryFormatReader>> verifiers) {
         final String table = "data_types_test_table";
 
         try {

jdbc-v2/src/test/java/com/clickhouse/jdbc/metadata/ResultSetMetaDataImplTest.java

@@ -171,14 +171,14 @@ public void testGetColumnScale() throws Exception {
         }
     }
 
-    public static void assertColumnNames(ResultSet rs, String... names) throws Exception {
+    static void assertColumnNames(ResultSet rs, String... names) throws Exception {
         ResultSetMetaData metadata = rs.getMetaData();
         assertEquals(names.length, metadata.getColumnCount());
         for (int i = 0; i < metadata.getColumnCount(); i++) {
             assertEquals(names[i], metadata.getColumnName(i + 1));
         }
     }
-    public static void assertColumnTypes(ResultSet rs, String... types) throws Exception {
+    static void assertColumnTypes(ResultSet rs, String... types) throws Exception {
         ResultSetMetaData metadata = rs.getMetaData();
         assertEquals(types.length, metadata.getColumnCount());
         for (int i = 0; i < metadata.getColumnCount(); i++) {