text: /*
   * Copyright 2012-2019 the original author or authors.
   *
   * 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
   *
   *      https://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.springframework.boot.test.autoconfigure.jdbc;
  
  import javax.sql.DataSource;
  
  import org.junit.jupiter.api.Test;
  
  import org.springframework.boot.autoconfigure.AutoConfigurations;
  import org.springframework.boot.test.context.runner.ApplicationContextRunner;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.jdbc.core.JdbcTemplate;
  import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
  import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  /**
   * Tests for {@link TestDatabaseAutoConfiguration}.
   *
   * @author Stephane Nicoll
   * @author Andy Wilkinson
   */
  class TestDatabaseAutoConfigurationTests {
  
  	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
  			.withConfiguration(AutoConfigurations.of(TestDatabaseAutoConfiguration.class));
  
  	@Test
  	void replaceWithNoDataSourceAvailable() {
  		this.contextRunner.run((context) -> assertThat(context).doesNotHaveBean(DataSource.class));
  	}
  
  	@Test
  	void replaceWithUniqueDatabase() {
  		this.contextRunner.withUserConfiguration(ExistingDataSourceConfiguration.class).run((context) -> {
  			DataSource datasource = context.getBean(DataSource.class);
  			JdbcTemplate jdbcTemplate = new JdbcTemplate(datasource);
  			jdbcTemplate.execute("create table example (id int, name varchar);");
  			this.contextRunner.withUserConfiguration(ExistingDataSourceConfiguration.class).run((secondContext) -> {
  				DataSource anotherDatasource = secondContext.getBean(DataSource.class);
  				JdbcTemplate anotherJdbcTemplate = new JdbcTemplate(anotherDatasource);
  				anotherJdbcTemplate.execute("create table example (id int, name varchar);");
  			});
  		});
  	}
  
  	@Configuration(proxyBeanMethods = false)
  	static class ExistingDataSourceConfiguration {
  
  		@Bean
  		DataSource dataSource() {
  			return new EmbeddedDatabaseBuilder().generateUniqueName(true).setType(EmbeddedDatabaseType.HSQL).build();
  		}
  
  	}
  
  }
  