/*
 * Hibernate Validator, declare and validate application constraints
 *
 * License: Apache License, Version 2.0
 * See the license.txt file in the root directory or <http://www.apache.org/licenses/LICENSE-2.0>.
 */
package org.hibernate.validator.test.internal.engine.methodvalidation.cascadedgroupvalidation;

import static org.hibernate.validator.testutil.ConstraintViolationAssert.assertConstraintViolation;
import static org.hibernate.validator.testutils.ValidatorUtil.getValidatingProxy;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.fail;

import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;

import org.hibernate.validator.testutil.TestForIssue;
import org.hibernate.validator.testutils.ValidatorUtil;
import org.testng.annotations.Test;

/**
 * @author Jan-Willem Willebrands
 */
@Test
@TestForIssue(jiraKey = "HV-1072")
public class CascadedMethodLevelValidationGroupSequenceTest {
	private CompoundEntityRepository entityRepository;

	private void setUpValidatorForGroups(Class<?>... groups) {
		entityRepository = getValidatingProxy(
				new CompoundEntityRepositoryImpl(), ValidatorUtil.getValidator(), groups
		);
	}

	/**
	 * Expect a single constraint violation from the first violation group.
	 */
	@Test
	private void cascadedConstraintViolationInFirstGroupOnly() {
		setUpValidatorForGroups( CompoundGroup.class );
		try {
			entityRepository.store( new CompoundEntity( new Entity( null, "value" ) ) );
			fail( "Expected MethodConstraintViolationException wasn't thrown." );
		}
		catch (ConstraintViolationException e) {

			assertEquals( e.getConstraintViolations().size(), 1 );

			ConstraintViolation<?> constraintViolation = e.getConstraintViolations().iterator().next();
			assertConstraintViolation(
					constraintViolation, "may not be null", CompoundEntityRepositoryImpl.class, null
			);
			assertEquals(
					constraintViolation.getConstraintDescriptor().getGroups().iterator().next(), ValidationGroup1.class
			);
		}
	}

	/**
	 * Expect a single constraint violation from the second validation group.
	 */
	@Test
	private void cascadedConstraintViolationInSecondGroupOnly() {
		setUpValidatorForGroups( CompoundGroup.class );
		try {
			entityRepository.store( new CompoundEntity( new Entity( "value", null ) ) );
			fail( "Expected MethodConstraintViolationException wasn't thrown." );
		}
		catch (ConstraintViolationException e) {

			assertEquals( e.getConstraintViolations().size(), 1 );

			ConstraintViolation<?> constraintViolation = e.getConstraintViolations().iterator().next();
			assertConstraintViolation(
					constraintViolation, "may not be null", CompoundEntityRepositoryImpl.class, null
			);
			assertEquals(
					constraintViolation.getConstraintDescriptor().getGroups().iterator().next(), ValidationGroup2.class
			);
		}
	}

	/**
	 * Expect a single constraint violation in the first group. The second group should not be
	 * validated due to the violation in the first group.
	 */
	@Test
	private void cascadedConstraintViolationInBothGroups() {
		setUpValidatorForGroups( CompoundGroup.class );
		try {
			entityRepository.store( new CompoundEntity( new Entity( null, null ) ) );
			fail( "Expected MethodConstraintViolationException wasn't thrown." );
		}
		catch (ConstraintViolationException e) {

			assertEquals( e.getConstraintViolations().size(), 1 );

			ConstraintViolation<?> constraintViolation = e.getConstraintViolations().iterator().next();
			assertConstraintViolation(
					constraintViolation, "may not be null", CompoundEntityRepositoryImpl.class, null
			);
			assertEquals(
					constraintViolation.getConstraintDescriptor().getGroups().iterator().next(), ValidationGroup1.class
			);
		}
	}

	/**
	 * Expect a single constraint violation from the first validation group.
	 */
	@Test
	private void cascadedReturnValueConstraintInFirstGroup() {
		setUpValidatorForGroups( CompoundGroup.class );
		try {
			entityRepository.getEntity( new CompoundEntity( new Entity( null, "value" ) ) );
			fail( "Expected MethodConstraintViolationException wasn't thrown." );
		}
		catch (ConstraintViolationException e) {
			assertEquals( e.getConstraintViolations().size(), 1 );
			ConstraintViolation<?> constraintViolation = e.getConstraintViolations().iterator().next();
			assertConstraintViolation(
					constraintViolation, "may not be null", CompoundEntityRepositoryImpl.class, null
			);
			assertEquals(
					constraintViolation.getConstraintDescriptor().getGroups().iterator().next(), ValidationGroup1.class
			);
		}
	}

	/**
	 * Expect a single constraint violation from the second validation group.
	 */
	@Test
	private void cascadedReturnValueConstraintInSecondGroup() {
		setUpValidatorForGroups( CompoundGroup.class );
		try {
			entityRepository.getEntity( new CompoundEntity( new Entity( "value", null ) ) );
			fail( "Expected MethodConstraintViolationException wasn't thrown." );
		}
		catch (ConstraintViolationException e) {

			assertEquals( e.getConstraintViolations().size(), 1 );

			ConstraintViolation<?> constraintViolation = e.getConstraintViolations().iterator().next();
			assertConstraintViolation(
					constraintViolation, "may not be null", CompoundEntityRepositoryImpl.class, null
			);
			assertEquals(
					constraintViolation.getConstraintDescriptor().getGroups().iterator().next(), ValidationGroup2.class
			);
		}
	}

	/**
	 * Expect a single constraint violation in the first group. The second group should not be
	 * validated due to the violation in the first group.
	 */
	@Test
	private void cascadedReturnValueConstraintInBothGroups() {
		setUpValidatorForGroups( CompoundGroup.class );
		try {
			entityRepository.getEntity( new CompoundEntity( new Entity( null, null ) ) );
			fail( "Expected MethodConstraintViolationException wasn't thrown." );
		}
		catch (ConstraintViolationException e) {

			assertEquals( e.getConstraintViolations().size(), 1 );

			ConstraintViolation<?> constraintViolation = e.getConstraintViolations().iterator().next();
			assertConstraintViolation(
					constraintViolation, "may not be null", CompoundEntityRepositoryImpl.class, null
			);
			assertEquals(
					constraintViolation.getConstraintDescriptor().getGroups().iterator().next(), ValidationGroup1.class
			);
		}
	}
}

