Fix JDK7 method order-dependent issues in SRCCT

SpringRunnerContextCacheTests suffers from JDK7-related non-determinism
in values returned from Class#getDeclaredMethods(), which in turn
affects JUnit and its execution of @Test methods.

This commit addresses this issue by introducing an
OrderedMethodsSpringJUnit4ClassRunner that sorts the test methods
alphabetically, which is actually required for
SpringRunnerContextCacheTests to work properly.

Issue: SPR-9789

spring-test/src/test/java/org/springframework/test/context/SpringRunnerContextCacheTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2011 the original author or authors.
+ * Copyright 2002-2012 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.
@@ -16,18 +16,24 @@
 
 package org.springframework.test.context;
 
+import static org.junit.Assert.*;
+
+import java.util.Comparator;
+import java.util.List;
+
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
-import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
-
+import org.junit.runners.model.FrameworkMethod;
+import org.junit.runners.model.InitializationError;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.ApplicationContext;
 import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.SpringRunnerContextCacheTests.OrderedMethodsSpringJUnit4ClassRunner;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
-
-import static org.junit.Assert.*;
+import org.springframework.test.context.support.DependencyInjectionTestExecutionListener;
+import org.springframework.test.context.support.DirtiesContextTestExecutionListener;
 
 /**
  * JUnit 4 based unit test which verifies correct {@link ContextCache
@@ -40,9 +46,9 @@ import static org.junit.Assert.*;
  * @since 2.5
  * @see TestContextCacheKeyTests
  */
-@Ignore
-@RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration("/org/springframework/test/context/junit4/SpringJUnit4ClassRunnerAppCtxTests-context.xml")
+@RunWith(OrderedMethodsSpringJUnit4ClassRunner.class)
+@TestExecutionListeners({ DependencyInjectionTestExecutionListener.class, DirtiesContextTestExecutionListener.class })
+@ContextConfiguration("junit4/SpringJUnit4ClassRunnerAppCtxTests-context.xml")
 public class SpringRunnerContextCacheTests {
 
 	private static ApplicationContext dirtiedApplicationContext;
@@ -124,4 +130,30 @@ public class SpringRunnerContextCacheTests {
 			SpringRunnerContextCacheTests.dirtiedApplicationContext, this.applicationContext);
 	}
 
+
+	/**
+	 * @since 3.2
+	 */
+	public static class OrderedMethodsSpringJUnit4ClassRunner extends SpringJUnit4ClassRunner {
+
+		public OrderedMethodsSpringJUnit4ClassRunner(Class<?> clazz) throws InitializationError {
+			super(clazz);
+		}
+
+		@Override
+		protected List<FrameworkMethod> computeTestMethods() {
+			List<FrameworkMethod> testMethods = super.computeTestMethods();
+
+			java.util.Collections.sort(testMethods, new Comparator<FrameworkMethod>() {
+
+				public int compare(FrameworkMethod method1, FrameworkMethod method2) {
+					return method1.getName().compareTo(method2.getName());
+				}
+			});
+
+			return testMethods;
+		}
+
+	}
+
 }