added test for Array(Nullable(UInt16))

Author: chernser

jdbc-v2/src/test/java/com/clickhouse/jdbc/ResultSetImplTest.java

@@ -367,22 +367,29 @@ public void testGetMetadata() throws SQLException {
     @Test(groups = {"integration"})
     public void testGetResultSetFromArray() throws Exception {
         try (Connection conn = getJdbcConnection(); Statement stmt = conn.createStatement()) {
-            try (ResultSet rs = stmt.executeQuery("select [1, 2, 3, 4]::Array(UInt16) as v")) {
+            try (ResultSet rs = stmt.executeQuery("select [1, 2, null, 4]::Array(Nullable(UInt16)) as v")) {
                 assertTrue(rs.next());
 
                 Array array = rs.getArray("v");
                 Assert.assertNotNull(array);
                 Assert.assertEquals(array.getBaseType(), Types.INTEGER);
-                Assert.assertEquals(array.getBaseTypeName(), "UInt16");
+                Assert.assertEquals(array.getBaseTypeName(), "Nullable(UInt16)");
 
                 Integer[] array2 = (Integer[]) array.getArray();
 
                 ResultSet rs2 = array.getResultSet();
                 Assert.assertTrue(rs2.isBeforeFirst());
                 Assert.assertFalse(rs2.isAfterLast());
+                String valueColumn = rs2.getMetaData().getColumnName(2);
                 for (int i = 0; i < array2.length; i++) {
                     rs2.next();
-                    Assert.assertEquals(rs2.getInt(1), array2[i]);
+                    if (i == 2 ) {
+                        rs2.getInt(valueColumn);
+                        Assert.assertTrue(rs2.wasNull());
+                    } else {
+                        Assert.assertEquals(rs2.getInt(valueColumn), array2[i]);
+                        Assert.assertFalse(rs2.wasNull());
+                    }
                 }
             }
         }