Unify use of @BootStrapWith

Update @IntegrationTest to use @BootstrapWith rather than an explicitly
defined set of test execution listeners.

Also introduce a new @SpringApplicationTest annotation that is similar
to  @SpringApplicationConfiguration but a bootstrapper.

Fixes gh-5230

spring-boot-test/src/test/java/org/springframework/boot/test/context/SpringApplicationTestTests.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright 2012-2016 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.test.context;
+
+import javax.servlet.ServletContext;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.web.context.WebApplicationContext;
+import org.springframework.web.context.request.RequestAttributes;
+import org.springframework.web.context.request.RequestContextHolder;
+import org.springframework.web.context.support.WebApplicationContextUtils;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link SpringApplicationTest}
+ *
+ * @author Phillip Webb
+ */
+@RunWith(SpringRunner.class)
+@SpringApplicationTest("value=123")
+@DirtiesContext
+public class SpringApplicationTestTests {
+
+	@Value("${value}")
+	private int value = 0;
+
+	@Autowired
+	private WebApplicationContext context;
+
+	@Autowired
+	private ServletContext servletContext;
+
+	@Test
+	public void annotationAttributesOverridePropertiesFile() throws Exception {
+		assertThat(this.value).isEqualTo(123);
+	}
+
+	@Test
+	public void validateWebApplicationContextIsSet() {
+		WebApplicationContext fromServletContext = WebApplicationContextUtils
+				.getWebApplicationContext(this.servletContext);
+		assertThat(fromServletContext).isSameAs(this.context);
+	}
+
+	@Test
+	public void setsRequestContextHolder() throws Exception {
+		RequestAttributes attributes = RequestContextHolder.getRequestAttributes();
+		assertThat(attributes).isNotNull();
+	}
+
+	@Configuration
+	@EnableWebMvc
+	protected static class Config {
+
+		@Bean
+		public static PropertySourcesPlaceholderConfigurer propertyPlaceholder() {
+			return new PropertySourcesPlaceholderConfigurer();
+		}
+
+	}
+
+}