Fix test suffix to align with checkstyle

config/src/test/java/org/springframework/security/config/annotation/web/builders/HttpSecurityAddFilterTests.java

@@ -49,7 +49,7 @@ import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 
 @ExtendWith(SpringTestContextExtension.class)
-public class HttpSecurityAddFilterTest {
+public class HttpSecurityAddFilterTests {
 
 	public final SpringTestContext spring = new SpringTestContext(this);
 

config/src/test/java/org/springframework/security/config/annotation/web/reactive/ReactiveOAuth2ClientImportSelectorTests.java

@@ -52,7 +52,7 @@ import static org.mockito.Mockito.verifyNoInteractions;
  * @author Alavudin Kuttikkattil
  */
 @ExtendWith(SpringTestContextExtension.class)
-public class ReactiveOAuth2ClientImportSelectorTest {
+public class ReactiveOAuth2ClientImportSelectorTests {
 
 	public final SpringTestContext spring = new SpringTestContext(this);
 

core/src/test/java/org/springframework/security/access/prepost/PostInvocationAdviceProviderTests.java

@@ -29,7 +29,7 @@ import org.springframework.security.access.intercept.aspectj.MethodInvocationAda
 import static org.assertj.core.api.Assertions.assertThat;
 
 @ExtendWith(MockitoExtension.class)
-public class PostInvocationAdviceProviderTest {
+public class PostInvocationAdviceProviderTests {
 
 	@Mock
 	private PostInvocationAuthorizationAdvice authorizationAdvice;

saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/jackson2/Saml2AuthenticationExceptionMixinTests.java

@@ -27,7 +27,7 @@ import org.springframework.security.saml2.provider.service.authentication.Saml2A
 
 import static org.assertj.core.api.Assertions.assertThat;
 
-class Saml2AuthenticationExceptionMixinTest {
+class Saml2AuthenticationExceptionMixinTests {
 
 	private ObjectMapper mapper;
 

test/src/test/java/org/springframework/security/test/web/servlet/response/SecurityMockMvcResultHandlersTests.java

@@ -42,9 +42,9 @@ import static org.springframework.security.test.web.servlet.setup.SecurityMockMv
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 
 @ExtendWith(SpringExtension.class)
-@ContextConfiguration(classes = SecurityMockMvcResultHandlersTest.Config.class)
+@ContextConfiguration(classes = SecurityMockMvcResultHandlersTests.Config.class)
 @WebAppConfiguration
-public class SecurityMockMvcResultHandlersTest {
+public class SecurityMockMvcResultHandlersTests {
 
 	@Autowired
 	private WebApplicationContext context;