package org.agoncal.book.javaee7.chapter03.ex10;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Ignore;
import org.junit.Test;
import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
import javax.validation.executable.ExecutableValidator;
import java.lang.reflect.Method;
import java.util.Set;
import static org.junit.Assert.assertEquals;
/**
* @author Antonio Goncalves
* APress Book - Beginning Java EE 7 with Glassfish 4
* http://www.apress.com/
* http://www.antoniogoncalves.org
* --
*/
public class Item10Test {
// ======================================
// = Attributes =
// ======================================
protected static ValidatorFactory vf;
protected static Validator validator;
// ======================================
// = Lifecycle Methods =
// ======================================
@BeforeClass
public static void init() {
vf = Validation.buildDefaultValidatorFactory();
validator = vf.getValidator();
}
@AfterClass
public static void close() {
vf.close();
}
// ======================================
// = Methods =
// ======================================
@Test
public void shouldRaiseNoConstraintViolation() {
// Creates a book
Item10 book = new Item10("H2G2", 12.5f, "Best IT Scifi Book");
// Validate the cd
Set<ConstraintViolation<Item10>> violations = validator.validate(book);
assertEquals(0, violations.size());
}
@Test
public void shouldRaiseConstraintsViolation() {
// Creates a book
Item10 book = new Item10();
// Validate the cd
Set<ConstraintViolation<Item10>> violations = validator.validate(book);
displayContraintViolations(violations);
assertEquals(1, violations.size());
}
@Test
public void shouldRaiseNoConstraintViolationOnCalculateVAT() throws NoSuchMethodException {
Item10 item = new Item10("H2G2", 12.5f, "Best IT Scifi Book");
ExecutableValidator methodValidator = validator.forExecutables();
Method method = Item10.class.getMethod("calculateVAT");
Set<ConstraintViolation<Item10>> violations = methodValidator.validateReturnValue(item, method, new Float(10.0));
assertEquals(0, violations.size());
}
@Test
public void shouldRaiseNoConstraintViolationOnCalculatePrice() throws NoSuchMethodException {
Item10 item = new Item10("H2G2", 12.5f, "Best IT Scifi Book");
ExecutableValidator methodValidator = validator.forExecutables();
Method method = Item10.class.getMethod("calculatePrice", Float.class);
Set<ConstraintViolation<Item10>> violations = methodValidator.validateParameters(item, method, new Object[]{new Float(4.5)});
assertEquals(0, violations.size());
}
@Test
public void shouldRaiseConstraintViolationOnCalculatePriceCauseRateIsTooLow() throws NoSuchMethodException {
Item10 item = new Item10("H2G2", 12.5f, "Best IT Scifi Book");
ExecutableValidator methodValidator = validator.forExecutables();
Method method = Item10.class.getMethod("calculatePrice", Float.class);
Set<ConstraintViolation<Item10>> violations = methodValidator.validateParameters(item, method, new Object[]{new Float(0.5)});
displayContraintViolations(violations);
assertEquals(1, violations.size());
}
private void displayContraintViolations(Set<ConstraintViolation<Item10>> constraintViolations) {
for (ConstraintViolation constraintViolation : constraintViolations) {
System.out.println("### " + constraintViolation.getRootBeanClass().getSimpleName() +
"." + constraintViolation.getPropertyPath() + " - Invalid Value = " + constraintViolation.getInvalidValue() + " - Error Msg = " + constraintViolation.getMessage());
}
}
}