Struts example source code file (ExpressionValidatorTest.java)

This example Struts source code file (ExpressionValidatorTest.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 - Struts tags/keywords

actionproxy, bar, delegatingvalidatorcontext, exception, exception, expressionvalidator, expressionvalidator, foo, hashmap, hashmap, hello, object, object, util, validationawaresupport

The Struts ExpressionValidatorTest.java source code

/*
 * Copyright 2002-2006,2009 The Apache Software Foundation.
 * 
 * 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 com.opensymphony.xwork2.validator;

import com.mockobjects.dynamic.C;
import com.mockobjects.dynamic.Mock;
import com.opensymphony.xwork2.*;
import com.opensymphony.xwork2.config.providers.MockConfigurationProvider;
import com.opensymphony.xwork2.config.entities.ActionConfig;
import com.opensymphony.xwork2.validator.validators.ExpressionValidator;

import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.easymock.EasyMock;

/**
 * Unit test for ExpressionValidator.
 *
 * @author Jason Carreira
 * @author Claus Ibsen
 */
public class ExpressionValidatorTest extends XWorkTestCase {

    public void testExpressionValidationOfStringLength() throws ValidationException {
        TestBean bean = new TestBean();
        bean.setName("abc");
        ActionContext.getContext().getValueStack().push(bean);

        DelegatingValidatorContext context = new DelegatingValidatorContext(new ValidationAwareSupport());
        container.getInstance(ActionValidatorManager.class).validate(bean, "expressionValidation", context);
        assertTrue(context.hasFieldErrors());

        final Map fieldErrors = context.getFieldErrors();
        assertTrue(fieldErrors.containsKey("name"));

        List nameErrors = (List) fieldErrors.get("name");
        assertEquals(1, nameErrors.size());
        assertEquals("Name must be greater than 5 characters, it is currently 'abc'", nameErrors.get(0));

        bean.setName("abcdefg");
        context = new DelegatingValidatorContext(new ValidationAwareSupport());
        container.getInstance(ActionValidatorManager.class).validate(bean, "expressionValidation", context);
        assertFalse(context.hasFieldErrors());
    }

    public void testExpressionValidatorFailure() throws Exception {
        HashMap<String, Object> params = new HashMap();
        params.put("date", "12/23/2002");
        params.put("foo", "5");
        params.put("bar", "7");

        HashMap<String, Object> extraContext = new HashMap();
        extraContext.put(ActionContext.PARAMETERS, params);

        ActionProxy proxy = actionProxyFactory.createActionProxy("", MockConfigurationProvider.VALIDATION_ACTION_NAME, extraContext);
        proxy.execute();
        assertTrue(((ValidationAware) proxy.getAction()).hasActionErrors());

        Collection errors = ((ValidationAware) proxy.getAction()).getActionErrors();
        assertEquals(1, errors.size());

        String message = (String) errors.iterator().next();
        assertNotNull(message);
        assertEquals("Foo must be greater than Bar. Foo = 5, Bar = 7.", message);
    }

    public void testExpressionValidatorSuccess() throws Exception {
        HashMap<String, Object> params = new HashMap();

        //make it not fail
        params.put("date", "12/23/2002");
        params.put("foo", "10");
        params.put("bar", "7");

        HashMap<String, Object> extraContext = new HashMap();
        extraContext.put(ActionContext.PARAMETERS, params);

        ActionProxy proxy = actionProxyFactory.createActionProxy("", MockConfigurationProvider.VALIDATION_ACTION_NAME, extraContext);
        proxy.execute();
        assertFalse(((ValidationAware) proxy.getAction()).hasActionErrors());
    }

    public void testGetSetExpresion() {
        ExpressionValidator ev = new ExpressionValidator();
        ev.setExpression("{top}");
        assertEquals("{top}", ev.getExpression());
    }

    public void testNoBooleanExpression() throws Exception {
        Mock mock = new Mock(ValidationAware.class);
        mock.expect("addActionError", C.ANY_ARGS);

        ExpressionValidator ev = new ExpressionValidator();
        ev.setValidatorContext(new DelegatingValidatorContext(mock.proxy()));
        ev.setExpression("{top}");
        ev.setValueStack(ActionContext.getContext().getValueStack());
        ev.validate("Hello"); // {top} will evalute to Hello that is not a Boolean
        mock.verify();
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();

        loadConfigurationProviders(new MockConfigurationProvider());

        ActionConfig config = new ActionConfig.Builder("", "name", "").build();
        ActionInvocation invocation = EasyMock.createNiceMock(ActionInvocation.class);
        ActionProxy proxy = EasyMock.createNiceMock(ActionProxy.class);

        EasyMock.expect(invocation.getProxy()).andReturn(proxy).anyTimes();
        EasyMock.expect(invocation.getAction()).andReturn(null).anyTimes();
        EasyMock.expect(invocation.invoke()).andReturn(Action.SUCCESS).anyTimes();
        EasyMock.expect(proxy.getMethod()).andReturn("execute").anyTimes();
        EasyMock.expect(proxy.getConfig()).andReturn(config).anyTimes();


        EasyMock.replay(invocation);
        EasyMock.replay(proxy);

        ActionContext.getContext().setActionInvocation(invocation);
    }

}