AmazonRdsDatabaseAutoConfigurationTest.java

/*
 * Copyright 2013-2014 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
 *
 *      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.springframework.cloud.aws.autoconfigure.jdbc;

import com.amazonaws.services.rds.AmazonRDS;
import com.amazonaws.services.rds.AmazonRDSClient;
import com.amazonaws.services.rds.model.DBInstance;
import com.amazonaws.services.rds.model.DescribeDBInstancesRequest;
import com.amazonaws.services.rds.model.DescribeDBInstancesResult;
import com.amazonaws.services.rds.model.Endpoint;
import org.junit.After;
import org.junit.Test;
import org.mockito.Mockito;
import org.springframework.boot.test.util.EnvironmentTestUtils;
import org.springframework.cloud.aws.jdbc.rds.AmazonRdsDataSourceFactoryBean;
import org.springframework.cloud.aws.jdbc.rds.AmazonRdsReadReplicaAwareDataSourceFactoryBean;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;

import javax.sql.DataSource;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.when;

public class AmazonRdsDatabaseAutoConfigurationTest {

    private AnnotationConfigApplicationContext context;

    @After
    public void tearDown() throws Exception {
        if (this.context != null) {
            this.context.close();
        }
    }

    @Test
    public void configureBean_withDefaultClientSpecifiedAndNoReadReplica_configuresFactoryBeanWithoutReadReplica() throws Exception {
        //Arrange
        this.context = new AnnotationConfigApplicationContext();
        this.context.register(ApplicationConfigurationWithoutReadReplica.class);
        this.context.register(AmazonRdsDatabaseAutoConfiguration.class);
        EnvironmentTestUtils.addEnvironment(this.context, "cloud.aws.rds.test.password:secret");

        //Act
        this.context.refresh();

        //Assert
        assertNotNull(this.context.getBean(DataSource.class));
        assertNotNull(this.context.getBean(AmazonRdsDataSourceFactoryBean.class));
    }

    @Test
    public void configureBean_withCustomDataBaseName_configuresFactoryBeanWithCustomDatabaseName() throws Exception {
        //Arrange
        this.context = new AnnotationConfigApplicationContext();
        this.context.register(ApplicationConfigurationWithoutReadReplica.class);
        this.context.register(AmazonRdsDatabaseAutoConfiguration.class);
        EnvironmentTestUtils.addEnvironment(this.context, "cloud.aws.rds.test.password:secret",
                "cloud.aws.rds.test.databaseName:fooDb");

        //Act
        this.context.refresh();

        //Assert
        DataSource dataSource = this.context.getBean(DataSource.class);
        assertNotNull(dataSource);
        assertNotNull(this.context.getBean(AmazonRdsDataSourceFactoryBean.class));

        assertTrue(dataSource instanceof org.apache.tomcat.jdbc.pool.DataSource);
        assertTrue(((org.apache.tomcat.jdbc.pool.DataSource) dataSource).getUrl().endsWith("fooDb"));
    }

    @Test
    public void configureBean_withDefaultClientSpecifiedAndNoReadReplicaAndMultipleDatabases_configuresBothDatabases() throws Exception {
        //Arrange
        this.context = new AnnotationConfigApplicationContext();
        this.context.register(ApplicationConfigurationWithMultipleDatabases.class);
        this.context.register(AmazonRdsDatabaseAutoConfiguration.class);
        EnvironmentTestUtils.addEnvironment(this.context, "cloud.aws.rds.test.password:secret", "cloud.aws.rds.anotherOne.password:verySecret");

        //Act
        this.context.refresh();

        //Assert
        assertNotNull(this.context.getBean("test", DataSource.class));
        assertNotNull(this.context.getBean("&test", AmazonRdsDataSourceFactoryBean.class));

        assertNotNull(this.context.getBean("anotherOne", DataSource.class));
        assertNotNull(this.context.getBean("&anotherOne", AmazonRdsDataSourceFactoryBean.class));
    }

    @Test
    public void configureBean_withDefaultClientSpecifiedAndReadReplica_configuresFactoryBeanWithReadReplicaEnabled() throws Exception {
        //Arrange
        this.context = new AnnotationConfigApplicationContext();
        this.context.register(ApplicationConfigurationWithReadReplica.class);
        this.context.register(AmazonRdsDatabaseAutoConfiguration.class);
        EnvironmentTestUtils.addEnvironment(this.context, "cloud.aws.rds.test.password:secret",
                "cloud.aws.rds.test.readReplicaSupport:true");

        //Act
        this.context.refresh();

        //Assert
        assertNotNull(this.context.getBean(DataSource.class));
        assertNotNull(this.context.getBean(AmazonRdsReadReplicaAwareDataSourceFactoryBean.class));
    }

    public static class ApplicationConfigurationWithoutReadReplica {

        @Bean
        public AmazonRDSClient amazonRDS() {
            AmazonRDSClient client = Mockito.mock(AmazonRDSClient.class);
            when(client.describeDBInstances(new DescribeDBInstancesRequest().withDBInstanceIdentifier("test"))).thenReturn(
                    new DescribeDBInstancesResult().
                            withDBInstances(new DBInstance().
                                    withDBInstanceStatus("available").
                                    withDBName("test").
                                    withDBInstanceIdentifier("test").
                                    withEngine("mysql").
                                    withMasterUsername("admin").
                                    withEndpoint(new Endpoint().
                                            withAddress("localhost").
                                            withPort(3306)
                                    ).withReadReplicaDBInstanceIdentifiers("read1")
                            )
            );
            return client;
        }

    }

    public static class ApplicationConfigurationWithMultipleDatabases {

        @Bean
        public AmazonRDS amazonRDS() {
            AmazonRDSClient client = Mockito.mock(AmazonRDSClient.class);
            when(client.describeDBInstances(new DescribeDBInstancesRequest().withDBInstanceIdentifier("test"))).thenReturn(
                    new DescribeDBInstancesResult().
                            withDBInstances(new DBInstance().
                                    withDBInstanceStatus("available").
                                    withDBName("test").
                                    withDBInstanceIdentifier("test").
                                    withEngine("mysql").
                                    withMasterUsername("admin").
                                    withEndpoint(new Endpoint().
                                            withAddress("localhost").
                                            withPort(3306)
                                    )
                            )
            );
            when(client.describeDBInstances(new DescribeDBInstancesRequest().withDBInstanceIdentifier("anotherOne"))).thenReturn(
                    new DescribeDBInstancesResult().
                            withDBInstances(new DBInstance().
                                    withDBInstanceStatus("available").
                                    withDBName("test").
                                    withDBInstanceIdentifier("anotherOne").
                                    withEngine("mysql").
                                    withMasterUsername("admin").
                                    withEndpoint(new Endpoint().
                                            withAddress("localhost").
                                            withPort(3306)
                                    )
                            )
            );
            return client;
        }

    }

    public static class ApplicationConfigurationWithReadReplica {

        @Bean
        public AmazonRDS amazonRDS() {
            AmazonRDSClient client = Mockito.mock(AmazonRDSClient.class);
            when(client.describeDBInstances(new DescribeDBInstancesRequest().withDBInstanceIdentifier("test"))).thenReturn(
                    new DescribeDBInstancesResult().
                            withDBInstances(new DBInstance().
                                    withDBInstanceStatus("available").
                                    withDBName("test").
                                    withDBInstanceIdentifier("test").
                                    withEngine("mysql").
                                    withMasterUsername("admin").
                                    withEndpoint(new Endpoint().
                                            withAddress("localhost").
                                            withPort(3306)
                                    ).withReadReplicaDBInstanceIdentifiers("read1")
                            )
            );
            when(client.describeDBInstances(new DescribeDBInstancesRequest().withDBInstanceIdentifier("read1"))).thenReturn(
                    new DescribeDBInstancesResult().
                            withDBInstances(new DBInstance().
                                    withDBInstanceStatus("available").
                                    withDBName("read1").
                                    withDBInstanceIdentifier("read1").
                                    withEngine("mysql").
                                    withMasterUsername("admin").
                                    withEndpoint(new Endpoint().
                                            withAddress("localhost").
                                            withPort(3306)
                                    )
                            )
            );
            return client;
        }

    }
}