/**
* Licensed to the Apache Software Foundation (ASF) under one or more contributor license
* agreements. See the NOTICE file distributed with this work for additional information regarding
* copyright ownership. The ASF licenses this file to you 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.apache.zeppelin.postgresql;
import static org.apache.zeppelin.postgresql.PostgreSqlInterpreter.DEFAULT_JDBC_DRIVER_NAME;
import static org.apache.zeppelin.postgresql.PostgreSqlInterpreter.DEFAULT_JDBC_URL;
import static org.apache.zeppelin.postgresql.PostgreSqlInterpreter.DEFAULT_JDBC_USER_NAME;
import static org.apache.zeppelin.postgresql.PostgreSqlInterpreter.DEFAULT_JDBC_USER_PASSWORD;
import static org.apache.zeppelin.postgresql.PostgreSqlInterpreter.DEFAULT_MAX_RESULT;
import static org.apache.zeppelin.postgresql.PostgreSqlInterpreter.POSTGRESQL_SERVER_DRIVER_NAME;
import static org.apache.zeppelin.postgresql.PostgreSqlInterpreter.POSTGRESQL_SERVER_MAX_RESULT;
import static org.apache.zeppelin.postgresql.PostgreSqlInterpreter.POSTGRESQL_SERVER_PASSWORD;
import static org.apache.zeppelin.postgresql.PostgreSqlInterpreter.POSTGRESQL_SERVER_URL;
import static org.apache.zeppelin.postgresql.PostgreSqlInterpreter.POSTGRESQL_SERVER_USER;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import java.sql.SQLException;
import java.util.Properties;
import org.apache.zeppelin.interpreter.InterpreterResult;
import org.junit.Before;
import org.junit.Test;
import com.mockrunner.jdbc.BasicJDBCTestCaseAdapter;
import com.mockrunner.jdbc.StatementResultSetHandler;
import com.mockrunner.mock.jdbc.MockConnection;
import com.mockrunner.mock.jdbc.MockResultSet;
/**
* PostgreSQL interpreter unit tests
*/
public class PostgreSqlInterpreterTest extends BasicJDBCTestCaseAdapter {
private PostgreSqlInterpreter psqlInterpreter = null;
private MockResultSet result = null;
@Before
public void beforeTest() {
MockConnection connection = getJDBCMockObjectFactory().getMockConnection();
StatementResultSetHandler statementHandler = connection.getStatementResultSetHandler();
result = statementHandler.createResultSet();
statementHandler.prepareGlobalResultSet(result);
Properties properties = new Properties();
properties.put(POSTGRESQL_SERVER_DRIVER_NAME, DEFAULT_JDBC_DRIVER_NAME);
properties.put(POSTGRESQL_SERVER_URL, DEFAULT_JDBC_URL);
properties.put(POSTGRESQL_SERVER_USER, DEFAULT_JDBC_USER_NAME);
properties.put(POSTGRESQL_SERVER_PASSWORD, DEFAULT_JDBC_USER_PASSWORD);
properties.put(POSTGRESQL_SERVER_MAX_RESULT, DEFAULT_MAX_RESULT);
psqlInterpreter = spy(new PostgreSqlInterpreter(properties));
when(psqlInterpreter.getJdbcConnection()).thenReturn(connection);
}
@Test
public void testOpenCommandIndempotency() throws SQLException {
// Ensure that an attempt to open new connection will clean any remaining connections
psqlInterpreter.open();
psqlInterpreter.open();
psqlInterpreter.open();
verify(psqlInterpreter, times(3)).open();
verify(psqlInterpreter, times(3)).close();
}
@Test
public void testDefaultProperties() throws SQLException {
PostgreSqlInterpreter psqlInterpreter = new PostgreSqlInterpreter(new Properties());
assertEquals(DEFAULT_JDBC_DRIVER_NAME,
psqlInterpreter.getProperty(POSTGRESQL_SERVER_DRIVER_NAME));
assertEquals(DEFAULT_JDBC_URL, psqlInterpreter.getProperty(POSTGRESQL_SERVER_URL));
assertEquals(DEFAULT_JDBC_USER_NAME, psqlInterpreter.getProperty(POSTGRESQL_SERVER_USER));
assertEquals(DEFAULT_JDBC_USER_PASSWORD,
psqlInterpreter.getProperty(POSTGRESQL_SERVER_PASSWORD));
assertEquals(DEFAULT_MAX_RESULT, psqlInterpreter.getProperty(POSTGRESQL_SERVER_MAX_RESULT));
}
@Test
public void testConnectionClose() throws SQLException {
PostgreSqlInterpreter psqlInterpreter = spy(new PostgreSqlInterpreter(new Properties()));
when(psqlInterpreter.getJdbcConnection()).thenReturn(
getJDBCMockObjectFactory().getMockConnection());
psqlInterpreter.close();
verifyAllResultSetsClosed();
verifyAllStatementsClosed();
verifyConnectionClosed();
}
@Test
public void testStatementCancel() throws SQLException {
PostgreSqlInterpreter psqlInterpreter = spy(new PostgreSqlInterpreter(new Properties()));
when(psqlInterpreter.getJdbcConnection()).thenReturn(
getJDBCMockObjectFactory().getMockConnection());
psqlInterpreter.cancel(null);
verifyAllResultSetsClosed();
verifyAllStatementsClosed();
assertFalse("Cancel operation should not close the connection", psqlInterpreter
.getJdbcConnection().isClosed());
}
@Test
public void testNullColumnResult() throws SQLException {
when(psqlInterpreter.getMaxResult()).thenReturn(1000);
String sqlQuery = "select * from t";
result.addColumn("col1", new String[] {"val11", null});
result.addColumn("col2", new String[] {null, "val22"});
InterpreterResult interpreterResult = psqlInterpreter.interpret(sqlQuery, null);
assertEquals(InterpreterResult.Code.SUCCESS, interpreterResult.code());
assertEquals(InterpreterResult.Type.TABLE, interpreterResult.type());
assertEquals("col1\tcol2\nval11\t\n\tval22\n", interpreterResult.message());
verifySQLStatementExecuted(sqlQuery);
verifyAllResultSetsClosed();
verifyAllStatementsClosed();
}
@Test
public void testSelectQuery() throws SQLException {
when(psqlInterpreter.getMaxResult()).thenReturn(1000);
String sqlQuery = "select * from t";
result.addColumn("col1", new String[] {"val11", "val12"});
result.addColumn("col2", new String[] {"val21", "val22"});
InterpreterResult interpreterResult = psqlInterpreter.interpret(sqlQuery, null);
assertEquals(InterpreterResult.Code.SUCCESS, interpreterResult.code());
assertEquals(InterpreterResult.Type.TABLE, interpreterResult.type());
assertEquals("col1\tcol2\nval11\tval21\nval12\tval22\n", interpreterResult.message());
verifySQLStatementExecuted(sqlQuery);
verifyAllResultSetsClosed();
verifyAllStatementsClosed();
}
@Test
public void testSelectQueryMaxResult() throws SQLException {
when(psqlInterpreter.getMaxResult()).thenReturn(1);
String sqlQuery = "select * from t";
result.addColumn("col1", new String[] {"val11", "val12"});
result.addColumn("col2", new String[] {"val21", "val22"});
InterpreterResult interpreterResult = psqlInterpreter.interpret(sqlQuery, null);
assertEquals(InterpreterResult.Code.SUCCESS, interpreterResult.code());
assertEquals(InterpreterResult.Type.TABLE, interpreterResult.type());
assertEquals("col1\tcol2\nval11\tval21\n", interpreterResult.message());
verifySQLStatementExecuted(sqlQuery);
verifyAllResultSetsClosed();
verifyAllStatementsClosed();
}
@Test
public void testSelectQueryWithSpecialCharacters() throws SQLException {
when(psqlInterpreter.getMaxResult()).thenReturn(1000);
String sqlQuery = "select * from t";
result.addColumn("co\tl1", new String[] {"val11", "va\tl1\n2"});
result.addColumn("co\nl2", new String[] {"v\nal21", "val\t22"});
InterpreterResult interpreterResult = psqlInterpreter.interpret(sqlQuery, null);
assertEquals(InterpreterResult.Code.SUCCESS, interpreterResult.code());
assertEquals(InterpreterResult.Type.TABLE, interpreterResult.type());
assertEquals("co l1\tco l2\nval11\tv al21\nva l1 2\tval 22\n", interpreterResult.message());
verifySQLStatementExecuted(sqlQuery);
verifyAllResultSetsClosed();
verifyAllStatementsClosed();
}
@Test
public void testExplainQuery() throws SQLException {
when(psqlInterpreter.getMaxResult()).thenReturn(1000);
String sqlQuery = "explain select * from t";
result.addColumn("col1", new String[] {"val11", "val12"});
InterpreterResult interpreterResult = psqlInterpreter.interpret(sqlQuery, null);
assertEquals(InterpreterResult.Code.SUCCESS, interpreterResult.code());
assertEquals(InterpreterResult.Type.TEXT, interpreterResult.type());
assertEquals("col1\nval11\nval12\n", interpreterResult.message());
verifySQLStatementExecuted(sqlQuery);
verifyAllResultSetsClosed();
verifyAllStatementsClosed();
}
@Test
public void testExplainQueryWithSpecialCharachters() throws SQLException {
when(psqlInterpreter.getMaxResult()).thenReturn(1000);
String sqlQuery = "explain select * from t";
result.addColumn("co\tl\n1", new String[] {"va\nl11", "va\tl\n12"});
InterpreterResult interpreterResult = psqlInterpreter.interpret(sqlQuery, null);
assertEquals(InterpreterResult.Code.SUCCESS, interpreterResult.code());
assertEquals(InterpreterResult.Type.TEXT, interpreterResult.type());
assertEquals("co\tl\n1\nva\nl11\nva\tl\n12\n", interpreterResult.message());
verifySQLStatementExecuted(sqlQuery);
verifyAllResultSetsClosed();
verifyAllStatementsClosed();
}
@Test
public void testAutoCompletion() throws SQLException {
psqlInterpreter.open();
assertEquals(1, psqlInterpreter.completion("SEL", 0).size());
assertEquals("SELECT ", psqlInterpreter.completion("SEL", 0).iterator().next());
assertEquals(0, psqlInterpreter.completion("SEL", 100).size());
}
}