/*
 * 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.tajo.storage.pgsql;

import com.google.common.collect.Sets;
import org.apache.tajo.catalog.MetadataProvider;
import org.apache.tajo.catalog.TableDesc;
import org.apache.tajo.storage.Tablespace;
import org.apache.tajo.storage.TablespaceManager;
import org.junit.BeforeClass;
import org.junit.Test;

import java.util.Set;

import static org.junit.Assert.*;

public class TestPgSQLMetadataProvider {
  static final String jdbcUrl = PgSQLTestServer.getInstance().getJdbcUrlForAdmin();

  @BeforeClass
  public static void setUp() throws Exception {
  }

  @Test
  public void testGetTablespaceName() throws Exception {
    Tablespace tablespace = TablespaceManager.get(jdbcUrl);
    MetadataProvider provider = tablespace.getMetadataProvider();
    assertEquals("pgsql_cluster", provider.getTablespaceName());
  }

  @Test
  public void testGetDatabaseName() throws Exception {
    Tablespace tablespace = TablespaceManager.get(jdbcUrl);
    MetadataProvider provider = tablespace.getMetadataProvider();
    assertEquals("tpch", provider.getDatabaseName());
  }

  @Test
  public void testGetSchemas() throws Exception {
    Tablespace tablespace = TablespaceManager.get(jdbcUrl);
    MetadataProvider provider = tablespace.getMetadataProvider();
    assertTrue(provider.getSchemas().isEmpty());
  }

  @Test
  public void testGetTables() throws Exception {
    Tablespace tablespace = TablespaceManager.get(jdbcUrl);
    MetadataProvider provider = tablespace.getMetadataProvider();

    final Set<String> expected = Sets.newHashSet(PgSQLTestServer.TPCH_TABLES);
    expected.add("datetime_types");
    final Set<String> found = Sets.newHashSet(provider.getTables(null, null));

    assertEquals(expected, found);
  }

  @Test
  public void testGetTableDescriptor() throws Exception {
    Tablespace tablespace = TablespaceManager.get(jdbcUrl);
    MetadataProvider provider = tablespace.getMetadataProvider();

    for (String tableName : PgSQLTestServer.TPCH_TABLES) {
      TableDesc table = provider.getTableDesc(null, tableName);
      assertEquals("tpch." + tableName, table.getName());
      assertEquals(jdbcUrl + "&table=" + tableName, table.getUri().toASCIIString());
    }
  }
}