Polish test classes

- Consistent importing of org.junit.Assert.*;
- Proper declaration of expected exceptions via @Test(expected).
- Renamed SpEL ExpressionTestCase to AbstractExpressionTests.
- Formatting and test method naming conventions.

spring-context/src/test/java/org/springframework/aop/framework/AbstractAopProxyTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2013 the original author or authors.
+ * Copyright 2002-2014 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.
@@ -16,14 +16,6 @@
 
 package org.springframework.aop.framework;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotSame;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.lang.reflect.Method;
@@ -41,9 +33,11 @@ import junit.framework.TestCase;
 import org.aopalliance.aop.Advice;
 import org.aopalliance.intercept.MethodInterceptor;
 import org.aopalliance.intercept.MethodInvocation;
+
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
+
 import org.springframework.aop.Advisor;
 import org.springframework.aop.AfterReturningAdvice;
 import org.springframework.aop.DynamicIntroductionAdvice;
@@ -85,6 +79,8 @@ import test.mixin.LockMixinAdvisor;
 import test.mixin.Lockable;
 import test.mixin.LockedException;
 
+import static org.junit.Assert.*;
+
 /**
  * @author Rod Johnson
  * @author Juergen Hoeller