Add tests for JndiConnectionFactoryAutoConfiguration

Closes gh-13526

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/jms/JndiConnectionFactoryAutoConfigurationTests.java

@@ -0,0 +1,138 @@
+/*
+ * Copyright 2012-2018 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.boot.autoconfigure.jms;
+
+import javax.jms.ConnectionFactory;
+import javax.naming.Context;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import org.springframework.beans.factory.BeanCreationException;
+import org.springframework.boot.autoconfigure.jndi.JndiPropertiesHidingClassLoader;
+import org.springframework.boot.autoconfigure.jndi.TestableInitialContextFactory;
+import org.springframework.boot.test.util.EnvironmentTestUtils;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+
+/**
+ * Tests for {@link JndiConnectionFactoryAutoConfiguration}.
+ *
+ * @author Stephane Nicoll
+ */
+public class JndiConnectionFactoryAutoConfigurationTests {
+
+	@Rule
+	public ExpectedException thrown = ExpectedException.none();
+
+	private ClassLoader threadContextClassLoader;
+
+	private String initialContextFactory;
+
+	private AnnotationConfigApplicationContext context;
+
+	@Before
+	public void setupJndi() {
+		this.initialContextFactory = System.getProperty(Context.INITIAL_CONTEXT_FACTORY);
+		System.setProperty(Context.INITIAL_CONTEXT_FACTORY,
+				TestableInitialContextFactory.class.getName());
+	}
+
+	@Before
+	public void setupThreadContextClassLoader() {
+		this.threadContextClassLoader = Thread.currentThread().getContextClassLoader();
+		Thread.currentThread().setContextClassLoader(
+				new JndiPropertiesHidingClassLoader(getClass().getClassLoader()));
+	}
+
+	@After
+	public void close() {
+		TestableInitialContextFactory.clearAll();
+		if (this.initialContextFactory != null) {
+			System.setProperty(Context.INITIAL_CONTEXT_FACTORY,
+					this.initialContextFactory);
+		}
+		else {
+			System.clearProperty(Context.INITIAL_CONTEXT_FACTORY);
+		}
+		if (this.context != null) {
+			this.context.close();
+		}
+		Thread.currentThread().setContextClassLoader(this.threadContextClassLoader);
+	}
+
+	@Test
+	public void detectNoAvailableCandidates() {
+		load();
+		assertThat(this.context.getBeansOfType(ConnectionFactory.class)).isEmpty();
+	}
+
+	@Test
+	public void detectWithJmsXAConnectionFactory() {
+		ConnectionFactory connectionFactory = configureConnectionFactory("java:/JmsXA");
+		load();
+		assertConnectionFactory(connectionFactory);
+	}
+
+	@Test
+	public void detectWithXAConnectionFactory() {
+		ConnectionFactory connectionFactory = configureConnectionFactory(
+				"java:/XAConnectionFactory");
+		load();
+		assertConnectionFactory(connectionFactory);
+	}
+
+	@Test
+	public void jndiNamePropertySet() {
+		ConnectionFactory connectionFactory = configureConnectionFactory("myCF");
+		load("spring.jms.jndi-name=myCF");
+		assertConnectionFactory(connectionFactory);
+	}
+
+	@Test
+	public void jndiNamePropertySetWithWrongValue() {
+		this.thrown.expect(BeanCreationException.class);
+		this.thrown.expectMessage("doesNotExistCF");
+		load("spring.jms.jndi-name=doesNotExistCF");
+	}
+
+	private void assertConnectionFactory(ConnectionFactory connectionFactory) {
+		assertThat(this.context.getBeansOfType(ConnectionFactory.class)).hasSize(1);
+		assertThat(this.context.getBean(ConnectionFactory.class))
+				.isSameAs(connectionFactory);
+	}
+
+	private void load(String... environment) {
+		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
+		EnvironmentTestUtils.addEnvironment(ctx, environment);
+		ctx.register(JndiConnectionFactoryAutoConfiguration.class);
+		ctx.refresh();
+		this.context = ctx;
+	}
+
+	private ConnectionFactory configureConnectionFactory(String name) {
+		ConnectionFactory connectionFactory = mock(ConnectionFactory.class);
+		TestableInitialContextFactory.bind(name, connectionFactory);
+		return connectionFactory;
+	}
+
+}