added a few test for db metadata

Author: chernser

jdbc-v2/src/main/java/com/clickhouse/jdbc/metadata/DatabaseMetaDataImpl.java

@@ -1345,7 +1345,6 @@ public int getDatabaseMajorVersion() throws SQLException {
         try {
             return Integer.parseInt(version.split("\\.")[0]);
         } catch (NumberFormatException e) {
-            log.error("Failed to parse major version from server version: " + version, e);
             throw new SQLException("Failed to parse major version from server version: " + version, ExceptionUtils.SQL_STATE_CLIENT_ERROR, e);
         }
     }

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

@@ -1103,4 +1103,28 @@ private void assertProcedureColumns(ResultSetMetaData rsmd, List<String> expecte
         }
     }
 
+
+
+    @Test(groups = {"integration"})
+    public void testGetDatabaseMajorVersion() throws Exception {
+        try (Connection conn = getJdbcConnection()) {
+            DatabaseMetaData dbmd = conn.getMetaData();
+            int majorVersion = dbmd.getDatabaseMajorVersion();
+            String version =  getServerVersion();
+            int majorVersionOfServer = Integer.parseInt(version.split("\\.")[0]);
+            assertEquals(majorVersion, majorVersionOfServer, "Major version");
+        }
+    }
+
+
+    @Test(groups = {"integration"})
+    public void testGetDatabaseMinorVersion() throws Exception {
+        try (Connection conn = getJdbcConnection()) {
+            DatabaseMetaData dbmd = conn.getMetaData();
+            int minorVersion = dbmd.getDatabaseMinorVersion();
+            String version =  getServerVersion();
+            int minorVersionOfServer = Integer.parseInt(version.split("\\.")[1]);
+            assertEquals(minorVersion, minorVersionOfServer, "Minor version");
+        }
+    }
 }