content: /*
   * 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.calcite.avatica;
  
  import org.apache.calcite.avatica.remote.MockJsonService;
  import org.apache.calcite.avatica.remote.MockProtobufService.MockProtobufServiceFactory;
  
  import org.junit.Ignore;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.Parameterized;
  import org.junit.runners.Parameterized.Parameters;
  
  import java.sql.Connection;
  import java.sql.DriverManager;
  import java.sql.ParameterMetaData;
  import java.sql.PreparedStatement;
  import java.sql.ResultSet;
  import java.sql.ResultSetMetaData;
  import java.sql.SQLException;
  import java.sql.Statement;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.concurrent.Callable;
  
  import static org.hamcrest.CoreMatchers.equalTo;
  import static org.hamcrest.CoreMatchers.is;
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  /**
   * RemoteDriver tests that use a Mock implementation of a Connection.
   */
  @RunWith(Parameterized.class)
  public class RemoteDriverMockTest {
    public static final String MJS = MockJsonService.Factory.class.getName();
    public static final String MPBS = MockProtobufServiceFactory.class.getName();
  
    private static Connection mjs() throws SQLException {
      return DriverManager.getConnection("jdbc:avatica:remote:factory=" + MJS);
    }
  
    private static Connection mpbs() throws SQLException {
      return DriverManager.getConnection("jdbc:avatica:remote:factory=" + MPBS);
    }
  
    @Parameters
    public static List<Object[]> parameters() {
      List<Object[]> parameters = new ArrayList<>();
  
      parameters.add(new Object[] {new Callable<Connection>() {
        public Connection call() throws SQLException {
          return mjs();
        }
      } });
  
      parameters.add(new Object[] {new Callable<Connection>() {
        public Connection call() throws SQLException {
          return mpbs();
        }
      } });
  
      return parameters;
    }
  
    private final Callable<Connection> connectionFunctor;
  
    public RemoteDriverMockTest(Callable<Connection> functor) {
      this.connectionFunctor = functor;
    }
  
    private Connection getMockConnection() {
      try {
        return connectionFunctor.call();
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
    }
  
    @Test public void testRegister() throws Exception {
      final Connection connection = getMockConnection();
      assertThat(connection.isClosed(), is(false));
      connection.close();
      assertThat(connection.isClosed(), is(true));
    }
  
    @Test public void testSchemas() throws Exception {
      final Connection connection = getMockConnection();
      final ResultSet resultSet =
          connection.getMetaData().getSchemas(null, null);
      assertFalse(resultSet.next());
      final ResultSetMetaData metaData = resultSet.getMetaData();
      assertTrue(metaData.getColumnCount() >= 2);
      assertEquals("TABLE_SCHEM", metaData.getColumnName(1));
      assertEquals("TABLE_CATALOG", metaData.getColumnName(2));
      resultSet.close();
      connection.close();
    }
  
    @Test public void testTables() throws Exception {
      final Connection connection = getMockConnection();
      final ResultSet resultSet =
          connection.getMetaData().getTables(null, null, null, new String[0]);
      assertFalse(resultSet.next());
      final ResultSetMetaData metaData = resultSet.getMetaData();
      assertTrue(metaData.getColumnCount() >= 3);
      assertEquals("TABLE_CAT", metaData.getColumnName(1));
      assertEquals("TABLE_SCHEM", metaData.getColumnName(2));
      assertEquals("TABLE_NAME", metaData.getColumnName(3));
      resultSet.close();
      connection.close();
    }
  
    @Ignore
    @Test public void testNoFactory() throws Exception {
      final Connection connection =
          DriverManager.getConnection("jdbc:avatica:remote:");
      assertThat(connection.isClosed(), is(false));
      final ResultSet resultSet = connection.getMetaData().getSchemas();
      assertFalse(resultSet.next());
      final ResultSetMetaData metaData = resultSet.getMetaData();
      assertEquals(2, metaData.getColumnCount());
      assertEquals("TABLE_SCHEM", metaData.getColumnName(1));
      assertEquals("TABLE_CATALOG", metaData.getColumnName(2));
      resultSet.close();
      connection.close();
      assertThat(connection.isClosed(), is(true));
    }
  
    @Ignore
    @Test public void testCatalogsMock() throws Exception {
      final Connection connection = getMockConnection();
      assertThat(connection.isClosed(), is(false));
      final ResultSet resultSet = connection.getMetaData().getSchemas();
      assertFalse(resultSet.next());
      final ResultSetMetaData metaData = resultSet.getMetaData();
      assertEquals(2, metaData.getColumnCount());
      assertEquals("TABLE_SCHEM", metaData.getColumnName(1));
      assertEquals("TABLE_CATALOG", metaData.getColumnName(2));
      resultSet.close();
      connection.close();
      assertThat(connection.isClosed(), is(true));
    }
  
    @Ignore
    @Test public void testStatementExecuteQueryMock() throws Exception {
      checkStatementExecuteQuery(getMockConnection(), false);
    }
  
    @Ignore
    @Test public void testPrepareExecuteQueryMock() throws Exception {
      checkStatementExecuteQuery(getMockConnection(), true);
    }
  
    private void checkStatementExecuteQuery(Connection connection,
        boolean prepare) throws SQLException {
      final String sql = "select * from (\n"
          + "  values (1, 'a'), (null, 'b'), (3, 'c')) as t (c1, c2)";
      final Statement statement;
      final ResultSet resultSet;
      final ParameterMetaData parameterMetaData;
      if (prepare) {
        final PreparedStatement ps = connection.prepareStatement(sql);
        statement = ps;
        parameterMetaData = ps.getParameterMetaData();
        resultSet = ps.executeQuery();
      } else {
        statement = connection.createStatement();
        parameterMetaData = null;
        resultSet = statement.executeQuery(sql);
      }
      if (parameterMetaData != null) {
        assertThat(parameterMetaData.getParameterCount(), equalTo(0));
      }
      final ResultSetMetaData metaData = resultSet.getMetaData();
      assertEquals(2, metaData.getColumnCount());
      assertEquals("C1", metaData.getColumnName(1));
      assertEquals("C2", metaData.getColumnName(2));
      assertTrue(resultSet.next());
      assertTrue(resultSet.next());
      assertTrue(resultSet.next());
      assertFalse(resultSet.next());
      resultSet.close();
      statement.close();
      connection.close();
    }
  
    @Test public void testResultSetsFinagled() throws Exception {
      // These values specified in MockJsonService
      final String table = "my_table";
      final long value = 10;
  
      final Connection connection = getMockConnection();
      // Not an accurate ResultSet per JDBC, but close enough for testing.
      ResultSet results = connection.getMetaData().getColumns(null, null, table, null);
      assertTrue(results.next());
      assertEquals(table, results.getString(1));
      assertEquals(value, results.getLong(2));
    }
  
  }
  
  // End RemoteDriverMockTest.java
  