Add @SpringApplicationConfiguration (for integration testing)

Example:

    @RunWith(SpringJUnit4ClassRunner.class)
    @SpringApplicationConfiguration(classes = SampleDataJpaApplication.class)
    public class CityRepositoryIntegrationTests {

    	@Autowired
    	CityRepository repository;

Fixes gh-66.

docs/howto.md

@@ -241,13 +241,12 @@ normally do with a vanilla Spring context. One thing to watch out for
 though is that the external properties, logging and other features of
 Spring Boot are only installed in the context by default if you use
 `SpringApplication` to create it. Spring Boot has a special Spring
-`TestContextLoader` which makes this job easy. For example (from the
+`@ContextConfiguration` annotation, so you can use this for example
-JPA Sample):
+(from the JPA Sample):
 
 ```java
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(classes = SampleDataJpaApplication.class, 
+@SpringApplicationConfiguration(classes = SampleDataJpaApplication.class)
-        loader = SpringApplicationContextLoader.class)
 public class CityRepositoryIntegrationTests {
 
 	@Autowired
@@ -256,12 +255,12 @@ public class CityRepositoryIntegrationTests {
 ...
 ```
 
-To use the `SpringApplicationContextLoader` you need the test jar on
+To use the `@SpringApplicationConfiguration` you need the test jar on
 your classpath (recommended Maven co-ordinates
 "org.springframework.boot:spring-boot-starter-test"). The context
 loader guesses whether you want to test a web application or not
 (e.g. with `MockMVC`) by looking for the `@WebAppConfiguration`
-annotation (`MockMVC` and `@WebAppConfiguration` are from the Spring
+annotation.  (`MockMVC` and `@WebAppConfiguration` are from the Spring
 Test support library).
 
 <span id="main.properties"/>

spring-boot-actuator/src/test/java/org/springframework/boot/actuate/web/BasicErrorControllerIntegrationTests.java

@@ -28,11 +28,10 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.actuate.web.BasicErrorControllerIntegrationTests.TestConfiguration;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
-import org.springframework.boot.context.initializer.LoggingApplicationContextInitializer;
+import org.springframework.boot.test.SpringApplicationConfiguration;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.http.MediaType;
-import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import org.springframework.test.context.web.WebAppConfiguration;
 import org.springframework.test.web.servlet.MockMvc;
@@ -49,7 +48,7 @@ import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.
 /**
  * @author Dave Syer
  */
-@ContextConfiguration(classes = TestConfiguration.class, initializers = { LoggingApplicationContextInitializer.class })
+@SpringApplicationConfiguration(classes = TestConfiguration.class)
 @RunWith(SpringJUnit4ClassRunner.class)
 @WebAppConfiguration
 public class BasicErrorControllerIntegrationTests {

spring-boot-samples/spring-boot-sample-data-jpa/src/test/java/org/springframework/boot/sample/data/jpa/SampleDataJpaApplicationTests.java

@@ -8,9 +8,8 @@ import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.SpringApplicationContextLoader;
+import org.springframework.boot.test.SpringApplicationConfiguration;
 import org.springframework.test.context.ActiveProfiles;
-import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import org.springframework.test.context.web.WebAppConfiguration;
 import org.springframework.test.web.servlet.MockMvc;
@@ -23,7 +22,7 @@ import org.springframework.web.context.WebApplicationContext;
  * @author Oliver Gierke
  */
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(classes = SampleDataJpaApplication.class, loader = SpringApplicationContextLoader.class)
+@SpringApplicationConfiguration(classes = SampleDataJpaApplication.class)
 @WebAppConfiguration
 @ActiveProfiles("scratch")
 // Separate profile for web tests to avoid clashing databases

spring-boot-samples/spring-boot-sample-data-jpa/src/test/java/org/springframework/boot/sample/data/jpa/service/CityRepositoryIntegrationTests.java

@@ -15,8 +15,8 @@
  */
 package org.springframework.boot.sample.data.jpa.service;
 
-import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.greaterThan;
+import static org.hamcrest.Matchers.is;
 import static org.junit.Assert.assertThat;
 
 import org.junit.Test;
@@ -24,10 +24,9 @@ import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.sample.data.jpa.SampleDataJpaApplication;
 import org.springframework.boot.sample.data.jpa.domain.City;
-import org.springframework.boot.test.SpringApplicationContextLoader;
+import org.springframework.boot.test.SpringApplicationConfiguration;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
-import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
 /**
@@ -36,7 +35,7 @@ import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
  * @author Oliver Gierke
  */
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(classes = SampleDataJpaApplication.class, loader = SpringApplicationContextLoader.class)
+@SpringApplicationConfiguration(classes = SampleDataJpaApplication.class)
 public class CityRepositoryIntegrationTests {
 
 	@Autowired

spring-boot-samples/spring-boot-sample-data-jpa/src/test/java/org/springframework/boot/sample/data/jpa/service/HotelRepositoryIntegrationTests.java

@@ -15,9 +15,9 @@
  */
 package org.springframework.boot.sample.data.jpa.service;
 
+import static org.hamcrest.Matchers.greaterThan;
 import static org.hamcrest.Matchers.hasSize;
 import static org.hamcrest.Matchers.is;
-import static org.hamcrest.Matchers.greaterThan;
 import static org.junit.Assert.assertThat;
 
 import java.util.List;
@@ -31,11 +31,10 @@ import org.springframework.boot.sample.data.jpa.domain.Hotel;
 import org.springframework.boot.sample.data.jpa.domain.HotelSummary;
 import org.springframework.boot.sample.data.jpa.domain.Rating;
 import org.springframework.boot.sample.data.jpa.domain.RatingCount;
-import org.springframework.boot.test.SpringApplicationContextLoader;
+import org.springframework.boot.test.SpringApplicationConfiguration;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
 import org.springframework.data.domain.Sort.Direction;
-import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
 /**
@@ -44,7 +43,7 @@ import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
  * @author Oliver Gierke
  */
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(classes = SampleDataJpaApplication.class, loader = SpringApplicationContextLoader.class)
+@SpringApplicationConfiguration(classes = SampleDataJpaApplication.class)
 public class HotelRepositoryIntegrationTests {
 
 	@Autowired

spring-boot/src/test/java/org/springframework/boot/test/SpringApplicationConfiguration.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright 2012-2013 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;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.springframework.context.ApplicationContextInitializer;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.test.context.ContextConfiguration;
+
+/**
+ * @author Dave Syer
+ */
+
+@ContextConfiguration(loader = SpringApplicationContextLoader.class)
+@Documented
+@Inherited
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface SpringApplicationConfiguration {
+
+	/**
+	 * @see ContextConfiguration#value()
+	 */
+	String[] value() default {};
+
+	/**
+	 * @see ContextConfiguration#locations()
+	 */
+	String[] locations() default {};
+
+	/**
+	 * @see ContextConfiguration#classes()
+	 */
+	Class<?>[] classes() default {};
+
+	/**
+	 * @see ContextConfiguration#initializers()
+	 */
+	Class<? extends ApplicationContextInitializer<? extends ConfigurableApplicationContext>>[] initializers() default {};
+
+	/**
+	 * @see ContextConfiguration#inheritLocations()
+	 */
+	boolean inheritLocations() default true;
+
+	/**
+	 * @see ContextConfiguration#inheritInitializers()
+	 */
+	boolean inheritInitializers() default true;
+
+	/**
+	 * @see ContextConfiguration#name()
+	 */
+	String name() default "";
+
+}