/*
 * Copyright Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags and
 * the COPYRIGHT.txt file distributed with this work.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.teiid.translator.jdbc;

import static org.junit.Assert.*;

import java.sql.DatabaseMetaData;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.Properties;

import org.junit.Test;
import org.mockito.Mockito;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.teiid.metadata.MetadataFactory;
import org.teiid.metadata.Table;
import org.teiid.query.metadata.SystemMetadata;

@SuppressWarnings("nls")
public class TestMetadataProcessor {

	@Test public void testInvalidIndex() throws SQLException {
		JDBCMetadataProcessor processor = new JDBCMetadataProcessor();
		processor.setImportIndexes(true);
		processor.setWidenUnsingedTypes(false);
		MetadataFactory mf = new MetadataFactory("vdb", 1, "x", SystemMetadata.getInstance().getRuntimeTypeMap(), new Properties(), null);
		DatabaseMetaData dmd = Mockito.mock(DatabaseMetaData.class);
		Table t = mf.addTable("c");
		JDBCMetadataProcessor.TableInfo ti = new JDBCMetadataProcessor.TableInfo("a", "b", "c", t);
		
		ResultSet rs = Mockito.mock(ResultSet.class);
		Mockito.stub(rs.next()).toAnswer(new Answer<Boolean>() {
			int count = 0;
			@Override
			public Boolean answer(InvocationOnMock invocation) throws Throwable {
				if (count++ == 0) {
					return true;
				}
				return false;
			}
		});
		//intentionally leave the column name null

		Mockito.stub(rs.getShort(7)).toReturn(DatabaseMetaData.tableIndexOther);
		Mockito.stub(dmd.getIndexInfo("a", "b", "c", false, true)).toReturn(rs);
		
		processor.getIndexes(mf, dmd, Arrays.asList(ti), false);
		Mockito.verify(rs).getString(9);
		assertTrue(t.getIndexes().isEmpty());
	}
	
	/**
	 * JDBC says to return an empty string, but some sources return null and we need to handle the null case anyways
	 */
	@Test public void testQuoteStringNull() {
		JDBCMetadataProcessor jmp = new JDBCMetadataProcessor();
		assertEquals("x", jmp.quoteName("x"));
	}
	
}
