/*
 * SonarQube
 * Copyright (C) 2009-2023 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.server.platform.db.migration.version.v100;

import java.sql.SQLException;
import org.junit.Rule;
import org.junit.Test;
import org.sonar.db.CoreDbTester;
import org.sonar.server.platform.db.migration.step.DdlChange;

public class DropIndexProjectsModuleUuidInComponentsTest {
  private static final String TABLE_NAME = "components";
  private static final String COLUMN_NAME = "module_uuid";
  private static final String INDEX_NAME = "projects_module_uuid";

  @Rule
  public final CoreDbTester db = CoreDbTester.createForSchema(DropIndexProjectsModuleUuidInComponentsTest.class, "schema.sql");
  private final DdlChange underTest = new DropIndexProjectsModuleUuidInComponents(db.database());

  @Test
  public void drops_index() throws SQLException {
    db.assertIndex(TABLE_NAME, INDEX_NAME, COLUMN_NAME);
    underTest.execute();
    db.assertIndexDoesNotExist(TABLE_NAME, INDEX_NAME);
  }

  @Test
  public void execute_whenIndexNameWithPrefix_shouldStillDelete() throws SQLException {
    String alteredIndexName = "idx_1234567891345678916456789_" + INDEX_NAME;
    db.executeUpdateSql(String.format("ALTER INDEX %s RENAME TO %s;", INDEX_NAME, alteredIndexName));
    db.assertIndexDoesNotExist(TABLE_NAME, INDEX_NAME);
    db.assertIndex(TABLE_NAME, alteredIndexName, COLUMN_NAME);
    underTest.execute();
    db.assertIndexDoesNotExist(TABLE_NAME, alteredIndexName);
  }

  @Test
  public void migration_is_reentrant() throws SQLException {
    db.assertIndex(TABLE_NAME, INDEX_NAME, COLUMN_NAME);
    underTest.execute();
    underTest.execute();
    db.assertIndexDoesNotExist(TABLE_NAME, INDEX_NAME);
  }
}
