Fix suffix of test classes names

As per Spring Framework code style [1], the suffix of
test classes should be "Tests". This commit fixes that
for some classes that do not conform to the code style.

[1]: https://github.com/spring-projects/spring-framework/wiki/Code-Style#tests

spring-batch-core/src/test/java/org/springframework/batch/core/configuration/xml/TaskletStepAllowStartIfCompleteTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2021 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.
@@ -36,7 +36,7 @@ import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
 @RunWith(SpringJUnit4ClassRunner.class)
 @ContextConfiguration
-public class TaskletStepAllowStartIfCompleteTest {
+public class TaskletStepAllowStartIfCompleteTests {
 
 	@Autowired
 	Job job;

spring-batch-core/src/test/java/org/springframework/batch/core/step/item/ScriptItemProcessorTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 the original author or authors.
+ * Copyright 2014-2021 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.
@@ -38,7 +38,7 @@ import java.util.List;
  */
 @ContextConfiguration
 @RunWith(SpringJUnit4ClassRunner.class)
-public class ScriptItemProcessorTest {
+public class ScriptItemProcessorTests {
 	@Autowired
 	private Job job;
 

spring-batch-core/src/test/java/org/springframework/batch/core/step/tasklet/MethodInvokingTaskletAdapterTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006-2018 the original author or authors.
+ * Copyright 2006-2021 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.
@@ -29,7 +29,7 @@ import static org.mockito.Mockito.mock;
 /**
  * @author Mahmoud Ben Hassine
  */
-public class MethodInvokingTaskletAdapterTest {
+public class MethodInvokingTaskletAdapterTests {
 
 	private StepContribution stepContribution;
 	private ChunkContext chunkContext;

spring-batch-core/src/test/resources/org/springframework/batch/core/step/item/ScriptItemProcessorTests-context.xml

@@ -46,5 +46,5 @@
 	<beans:bean id="processor" class="org.springframework.batch.item.support.ScriptItemProcessor"
 				p:script="org/springframework/batch/core/step/item/processor-test-simple.js"/>
 
-	<beans:bean id="writer" class="org.springframework.batch.core.step.item.ScriptItemProcessorTest$TestItemWriter"/>
+	<beans:bean id="writer" class="org.springframework.batch.core.step.item.ScriptItemProcessorTests$TestItemWriter"/>
 </beans:beans>