de.gmorling.methodvalidation.spring.SpringMethodValidationTest.java Source code

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Here is the source code for de.gmorling.methodvalidation.spring.SpringMethodValidationTest.java

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/**
 *  Copyright 2011 Gunnar Morling (http://www.gunnarmorling.de/)
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package de.gmorling.methodvalidation.spring;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

import java.util.ResourceBundle;
import java.util.Set;

import javax.inject.Inject;

import org.hibernate.validator.MethodConstraintViolation;
import org.hibernate.validator.MethodConstraintViolationException;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import de.gmorling.methodvalidation.spring.domain.Movie;
import de.gmorling.methodvalidation.spring.service.MovieRepository;

/**
 * @author Kevin Pollet
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "/service-spring-config.xml")
public class SpringMethodValidationTest {

    private static String nullValidationMessage;

    @Inject
    private MovieRepository movieRepository;

    @BeforeClass
    public static void before() {
        ResourceBundle bundle = ResourceBundle.getBundle("org.hibernate.validator.ValidationMessages");
        nullValidationMessage = bundle.getString("javax.validation.constraints.NotNull.message");
    }

    @Test
    public void validMethodCall() {

        Set<Movie> moviesByBryanSinger = movieRepository.findMoviesByDirector("Bryan Singer");

        assertEquals(1, moviesByBryanSinger.size());
        assertEquals("The Usual Suspects", moviesByBryanSinger.iterator().next().getTitle());
    }

    @Test
    public void methodCallFailsDueToIllegalParameter() {

        try {
            movieRepository.findMoviesByDirector(null);
            fail("Expected " + MethodConstraintViolationException.class.getSimpleName() + " wasn't thrown.");
        } catch (MethodConstraintViolationException e) {
            Set<MethodConstraintViolation<?>> violations = e.getConstraintViolations();
            assertEquals(1, violations.size());
            MethodConstraintViolation<?> constraintViolation = violations.iterator().next();
            assertEquals(nullValidationMessage, constraintViolation.getMessage());
            assertEquals("MovieRepository#findMoviesByDirector(arg0)",
                    constraintViolation.getPropertyPath().toString());
        }

    }

    @Test
    public void methodCallFailsDueToIllegalReturnValue() {

        try {
            movieRepository.findMoviesByDirector("John Hillcoat");
            fail("Expected " + MethodConstraintViolationException.class.getSimpleName() + " wasn't thrown.");
        } catch (MethodConstraintViolationException e) {
            Set<MethodConstraintViolation<?>> violations = e.getConstraintViolations();
            assertEquals(1, violations.size());
            MethodConstraintViolation<?> constraintViolation = violations.iterator().next();
            assertEquals(nullValidationMessage, constraintViolation.getMessage());
            assertEquals("MovieRepository#findMoviesByDirector()[].releaseDate",
                    constraintViolation.getPropertyPath().toString());
        }
    }

}