Explicitly order AbstractTestExecutionListener subclasses

By default, AbstractTestExecutionListeners have an order of lowest
precedence. This means that it is impossible to write a listener with
lower precedence that any listener that's using the default order.

This commit updates Boot's 6 AbstractTestExecutionListeners to order
them explicitly. MockitoTestExecutionListener performs injection of
Mockito mocks and spies into the test instance. It now has an order of
2050 giving it slightly lower precedence than the dependency injection
test execution listener (2000).

The remaining 5 listeners have all been ordered with lowest precedence
- 100. This leaves them near their current lowest precedence position
while creating some room for any listeners that require lower
precedence.

Closes gh-11796

spring-boot-project/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/restdocs/RestDocsTestExecutionListener.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * 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.
@@ -17,6 +17,7 @@
 package org.springframework.boot.test.autoconfigure.restdocs;
 
 import org.springframework.beans.factory.NoSuchBeanDefinitionException;
+import org.springframework.core.Ordered;
 import org.springframework.restdocs.ManualRestDocumentation;
 import org.springframework.test.context.TestContext;
 import org.springframework.test.context.TestExecutionListener;
@@ -35,6 +36,11 @@ public class RestDocsTestExecutionListener extends AbstractTestExecutionListener
 
 	private static final String REST_DOCS_CLASS = "org.springframework.restdocs.ManualRestDocumentation";
 
+	@Override
+	public int getOrder() {
+		return Ordered.LOWEST_PRECEDENCE - 100;
+	}
+
 	@Override
 	public void beforeTestMethod(TestContext testContext) throws Exception {
 		if (restDocsIsPresent()) {

spring-boot-project/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/web/client/MockRestServiceServerResetTestExecutionListener.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * 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.
@@ -17,6 +17,7 @@
 package org.springframework.boot.test.autoconfigure.web.client;
 
 import org.springframework.context.ApplicationContext;
+import org.springframework.core.Ordered;
 import org.springframework.test.context.TestContext;
 import org.springframework.test.context.TestExecutionListener;
 import org.springframework.test.context.support.AbstractTestExecutionListener;
@@ -30,6 +31,11 @@ import org.springframework.test.web.client.MockRestServiceServer;
 class MockRestServiceServerResetTestExecutionListener
 		extends AbstractTestExecutionListener {
 
+	@Override
+	public int getOrder() {
+		return Ordered.LOWEST_PRECEDENCE - 100;
+	}
+
 	@Override
 	public void afterTestMethod(TestContext testContext) throws Exception {
 		ApplicationContext applicationContext = testContext.getApplicationContext();

spring-boot-project/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/web/servlet/MockMvcPrintOnlyOnFailureTestExecutionListener.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * 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.
@@ -17,6 +17,7 @@
 package org.springframework.boot.test.autoconfigure.web.servlet;
 
 import org.springframework.boot.test.autoconfigure.web.servlet.SpringBootMockMvcBuilderCustomizer.DeferredLinesWriter;
+import org.springframework.core.Ordered;
 import org.springframework.test.context.TestContext;
 import org.springframework.test.context.TestExecutionListener;
 import org.springframework.test.context.support.AbstractTestExecutionListener;
@@ -29,6 +30,11 @@ import org.springframework.test.context.support.AbstractTestExecutionListener;
 class MockMvcPrintOnlyOnFailureTestExecutionListener
 		extends AbstractTestExecutionListener {
 
+	@Override
+	public int getOrder() {
+		return Ordered.LOWEST_PRECEDENCE - 100;
+	}
+
 	@Override
 	public void afterTestMethod(TestContext testContext) throws Exception {
 		if (testContext.getTestException() != null) {

spring-boot-project/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/web/servlet/WebDriverTestExecutionListener.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * 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.
@@ -16,6 +16,7 @@
 
 package org.springframework.boot.test.autoconfigure.web.servlet;
 
+import org.springframework.core.Ordered;
 import org.springframework.test.context.TestContext;
 import org.springframework.test.context.TestExecutionListener;
 import org.springframework.test.context.support.AbstractTestExecutionListener;
@@ -30,6 +31,11 @@ import org.springframework.test.context.support.DependencyInjectionTestExecution
  */
 class WebDriverTestExecutionListener extends AbstractTestExecutionListener {
 
+	@Override
+	public int getOrder() {
+		return Ordered.LOWEST_PRECEDENCE - 100;
+	}
+
 	@Override
 	public void afterTestMethod(TestContext testContext) throws Exception {
 		WebDriverScope scope = WebDriverScope

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/mock/mockito/MockitoTestExecutionListener.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * 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.
@@ -41,6 +41,11 @@ import org.springframework.util.ReflectionUtils.FieldCallback;
  */
 public class MockitoTestExecutionListener extends AbstractTestExecutionListener {
 
+	@Override
+	public final int getOrder() {
+		return 2050;
+	}
+
 	@Override
 	public void prepareTestInstance(TestContext testContext) throws Exception {
 		if (hasMockitoAnnotations(testContext)) {

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/mock/mockito/ResetMocksTestExecutionListener.java

@@ -27,6 +27,7 @@ import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.core.Ordered;
 import org.springframework.test.context.TestContext;
 import org.springframework.test.context.TestExecutionListener;
 import org.springframework.test.context.support.AbstractTestExecutionListener;
@@ -45,6 +46,11 @@ public class ResetMocksTestExecutionListener extends AbstractTestExecutionListen
 			"org.mockito.MockSettings",
 			ResetMocksTestExecutionListener.class.getClassLoader());
 
+	@Override
+	public int getOrder() {
+		return Ordered.LOWEST_PRECEDENCE - 100;
+	}
+
 	@Override
 	public void beforeTestMethod(TestContext testContext) throws Exception {
 		if (MOCKITO_IS_PRESENT) {