Package org.springframework.web.method.annotation

Source Code of org.springframework.web.method.annotation.ErrorsMethodHandlerArgumentResolverTests

/*
* Copyright 2002-2012 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.web.method.annotation;

import org.junit.Before;
import org.junit.Test;

import org.springframework.core.MethodParameter;
import org.springframework.mock.web.test.MockHttpServletRequest;
import org.springframework.validation.BindingResult;
import org.springframework.validation.Errors;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.context.request.ServletWebRequest;
import org.springframework.web.method.support.ModelAndViewContainer;

import static org.junit.Assert.*;

/**
* Test fixture with {@link ErrorsMethodArgumentResolver}.
*
* @author Rossen Stoyanchev
*/
public class ErrorsMethodHandlerArgumentResolverTests {

  private final ErrorsMethodArgumentResolver resolver = new ErrorsMethodArgumentResolver();

  private BindingResult bindingResult;

  private MethodParameter paramErrors;

  private NativeWebRequest webRequest;

  @Before
  public void setUp() throws Exception {
    paramErrors = new MethodParameter(getClass().getDeclaredMethod("handle", Errors.class), 0);
    bindingResult = new WebDataBinder(new Object(), "attr").getBindingResult();
    webRequest = new ServletWebRequest(new MockHttpServletRequest());
  }

  @Test
  public void supports() throws Exception {
    resolver.supportsParameter(paramErrors);
  }

  @Test
  public void bindingResult() throws Exception {
    ModelAndViewContainer mavContainer = new ModelAndViewContainer();
    mavContainer.addAttribute("ignore1", "value1");
    mavContainer.addAttribute("ignore2", "value2");
    mavContainer.addAttribute("ignore3", "value3");
    mavContainer.addAttribute("ignore4", "value4");
    mavContainer.addAttribute("ignore5", "value5");
    mavContainer.addAllAttributes(bindingResult.getModel());

    Object actual = resolver.resolveArgument(paramErrors, mavContainer, webRequest, null);

    assertSame(actual, bindingResult);
  }

  @Test(expected=IllegalStateException.class)
  public void bindingResultNotFound() throws Exception {
    ModelAndViewContainer mavContainer = new ModelAndViewContainer();
    mavContainer.addAllAttributes(bindingResult.getModel());
    mavContainer.addAttribute("ignore1", "value1");

    resolver.resolveArgument(paramErrors, mavContainer, webRequest, null);
  }

  @Test(expected=IllegalStateException.class)
  public void noBindingResult() throws Exception {
    resolver.resolveArgument(paramErrors, new ModelAndViewContainer(), webRequest, null);
  }

  @SuppressWarnings("unused")
  private void handle(Errors errors) {
  }

}
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