Spring Framework example source code file (ValidationUtilsTests.java)

This example Spring Framework source code file (ValidationUtilsTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

beanpropertybindingresult, beanpropertybindingresult, empty, empty_or_whitespace, empty_or_whitespace, emptyvalidator, errors, errors, exception, object, testbean, testbean, validator, you

The Spring Framework ValidationUtilsTests.java source code

/*
 * Copyright 2002-2007 the original author or authors.
 *
 * 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 org.springframework.validation;

import junit.framework.TestCase;

import org.springframework.beans.TestBean;
import org.springframework.test.AssertThrows;

/**
 * @author Juergen Hoeller
 * @author Rick Evans
 * @since 08.10.2004
 */
public class ValidationUtilsTests extends TestCase {

	public void testInvokeValidatorWithNullValidator() throws Exception {
		new AssertThrows(IllegalArgumentException.class) {
			public void test() throws Exception {
				TestBean tb = new TestBean();
				Errors errors = new BeanPropertyBindingResult(tb, "tb");
				ValidationUtils.invokeValidator(null, tb, errors);
			}
		}.runTest();
	}

	public void testInvokeValidatorWithNullErrors() throws Exception {
		new AssertThrows(IllegalArgumentException.class) {
			public void test() throws Exception {
				TestBean tb = new TestBean();
				ValidationUtils.invokeValidator(new EmptyValidator(), tb, null);
			}
		}.runTest();
	}

	public void testInvokeValidatorSunnyDay() throws Exception {
		TestBean tb = new TestBean();
		Errors errors = new BeanPropertyBindingResult(tb, "tb");
		ValidationUtils.invokeValidator(new EmptyValidator(), tb, errors);
		assertTrue(errors.hasFieldErrors("name"));
		assertEquals("EMPTY", errors.getFieldError("name").getCode());
	}

	public void testValidationUtilsSunnyDay() throws Exception {
		TestBean tb = new TestBean("");

		Validator testValidator = new EmptyValidator();
		tb.setName(" ");
		Errors errors = new BeanPropertyBindingResult(tb, "tb");
		testValidator.validate(tb, errors);
		assertFalse(errors.hasFieldErrors("name"));

		tb.setName("Roddy");
		errors = new BeanPropertyBindingResult(tb, "tb");
		testValidator.validate(tb, errors);
		assertFalse(errors.hasFieldErrors("name"));
	}

	public void testValidationUtilsNull() throws Exception {
		TestBean tb = new TestBean();
		Errors errors = new BeanPropertyBindingResult(tb, "tb");
		Validator testValidator = new EmptyValidator();
		testValidator.validate(tb, errors);
		assertTrue(errors.hasFieldErrors("name"));
		assertEquals("EMPTY", errors.getFieldError("name").getCode());
	}

	public void testValidationUtilsEmpty() throws Exception {
		TestBean tb = new TestBean("");
		Errors errors = new BeanPropertyBindingResult(tb, "tb");
		Validator testValidator = new EmptyValidator();
		testValidator.validate(tb, errors);
		assertTrue(errors.hasFieldErrors("name"));
		assertEquals("EMPTY", errors.getFieldError("name").getCode());
	}

	public void testValidationUtilsEmptyVariants() {
		TestBean tb = new TestBean();

		Errors errors = new BeanPropertyBindingResult(tb, "tb");
		ValidationUtils.rejectIfEmpty(errors, "name", "EMPTY_OR_WHITESPACE", new Object[] {"arg"});
		assertTrue(errors.hasFieldErrors("name"));
		assertEquals("EMPTY_OR_WHITESPACE", errors.getFieldError("name").getCode());
		assertEquals("arg", errors.getFieldError("name").getArguments()[0]);

		errors = new BeanPropertyBindingResult(tb, "tb");
		ValidationUtils.rejectIfEmpty(errors, "name", "EMPTY_OR_WHITESPACE", new Object[] {"arg"}, "msg");
		assertTrue(errors.hasFieldErrors("name"));
		assertEquals("EMPTY_OR_WHITESPACE", errors.getFieldError("name").getCode());
		assertEquals("arg", errors.getFieldError("name").getArguments()[0]);
		assertEquals("msg", errors.getFieldError("name").getDefaultMessage());
	}

	public void testValidationUtilsEmptyOrWhitespace() throws Exception {
		TestBean tb = new TestBean();
		Validator testValidator = new EmptyOrWhitespaceValidator();

		// Test null
		Errors errors = new BeanPropertyBindingResult(tb, "tb");
		testValidator.validate(tb, errors);
		assertTrue(errors.hasFieldErrors("name"));
		assertEquals("EMPTY_OR_WHITESPACE", errors.getFieldError("name").getCode());

		// Test empty String
		tb.setName("");
		errors = new BeanPropertyBindingResult(tb, "tb");
		testValidator.validate(tb, errors);
		assertTrue(errors.hasFieldErrors("name"));
		assertEquals("EMPTY_OR_WHITESPACE", errors.getFieldError("name").getCode());

		// Test whitespace String
		tb.setName(" ");
		errors = new BeanPropertyBindingResult(tb, "tb");
		testValidator.validate(tb, errors);
		assertTrue(errors.hasFieldErrors("name"));
		assertEquals("EMPTY_OR_WHITESPACE", errors.getFieldError("name").getCode());

		// Test OK
		tb.setName("Roddy");
		errors = new BeanPropertyBindingResult(tb, "tb");
		testValidator.validate(tb, errors);
		assertFalse(errors.hasFieldErrors("name"));
	}

	public void testValidationUtilsEmptyOrWhitespaceVariants() {
		TestBean tb = new TestBean();
		tb.setName(" ");

		Errors errors = new BeanPropertyBindingResult(tb, "tb");
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "name", "EMPTY_OR_WHITESPACE", new Object[] {"arg"});
		assertTrue(errors.hasFieldErrors("name"));
		assertEquals("EMPTY_OR_WHITESPACE", errors.getFieldError("name").getCode());
		assertEquals("arg", errors.getFieldError("name").getArguments()[0]);

		errors = new BeanPropertyBindingResult(tb, "tb");
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "name", "EMPTY_OR_WHITESPACE", new Object[] {"arg"}, "msg");
		assertTrue(errors.hasFieldErrors("name"));
		assertEquals("EMPTY_OR_WHITESPACE", errors.getFieldError("name").getCode());
		assertEquals("arg", errors.getFieldError("name").getArguments()[0]);
		assertEquals("msg", errors.getFieldError("name").getDefaultMessage());
	}


	private static class EmptyValidator implements Validator {

		public boolean supports(Class clazz) {
			return TestBean.class.isAssignableFrom(clazz);
		}

		public void validate(Object obj, Errors errors) {
			ValidationUtils.rejectIfEmpty(errors, "name", "EMPTY", "You must enter a name!");
		}
	}


	private static class EmptyOrWhitespaceValidator implements Validator {

		public boolean supports(Class clazz) {
			return TestBean.class.isAssignableFrom(clazz);
		}

		public void validate(Object obj, Errors errors) {
			ValidationUtils.rejectIfEmptyOrWhitespace(errors, "name", "EMPTY_OR_WHITESPACE", "You must enter a name!");
		}
	}

}