Migrates web examples to JUnit 5.

Original pull request #602
Related tickest #583

web/example/src/test/java/example/users/AbstractIntegrationTests.java

@@ -15,15 +15,15 @@
  */
 package example.users;
 
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.extension.ExtendWith;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
 
 /**
  * Integration tests to bootstrap the application.
  *
  * @author Oliver Gierke
  */
-@RunWith(SpringRunner.class)
+@ExtendWith(SpringExtension.class)
 @SpringBootTest
 public abstract class AbstractIntegrationTests {}

web/example/src/test/java/example/users/UserManagementIntegrationTests.java

@@ -16,9 +16,9 @@
 package example.users;
 
 import static org.hamcrest.CoreMatchers.*;
-import static org.junit.Assert.*;
+import static org.hamcrest.MatcherAssert.*;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 
 /**

web/example/src/test/java/example/users/UserRepositoryIntegrationTests.java

@@ -15,7 +15,8 @@
  */
 package example.users;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.dao.InvalidDataAccessApiUsageException;
 
@@ -31,8 +32,10 @@ public class UserRepositoryIntegrationTests extends AbstractIntegrationTests {
 	/**
 	 * @see #65
 	 */
-	@Test(expected = InvalidDataAccessApiUsageException.class)
+	@Test
 	public void repositoryRejectsUnencryptedPassword() {
-		users.save(new User(new Username("olivergierke"), Password.raw("foobar")));
+		Assertions.assertThrows(InvalidDataAccessApiUsageException.class, () -> {
+			users.save(new User(new Username("olivergierke"), Password.raw("foobar")));
+		});
 	}
 }