Package org.springframework.ide.eclipse.quickfix.proposals.tests

Source Code of org.springframework.ide.eclipse.quickfix.proposals.tests.RemoveConstructorParamQuickFixProposalTest

/*******************************************************************************
*  Copyright (c) 2012 VMware, Inc.
*  All rights reserved. This program and the accompanying materials
*  are made available under the terms of the Eclipse Public License v1.0
*  which accompanies this distribution, and is available at
*  http://www.eclipse.org/legal/epl-v10.html
*
*  Contributors:
*      VMware, Inc. - initial API and implementation
*******************************************************************************/
package org.springframework.ide.eclipse.quickfix.proposals.tests;

import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion;
import org.eclipse.wst.xml.core.internal.document.AttrImpl;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;
import org.springframework.ide.eclipse.config.core.schemas.BeansSchemaConstants;
import org.springframework.ide.eclipse.core.java.Introspector;
import org.springframework.ide.eclipse.quickfix.proposals.RemoveConstructorParamQuickFixProposal;
import org.springframework.ide.eclipse.quickfix.tests.QuickfixTestUtil;


/**
* @author Terry Denney
* @author Leo Dos Santos
* @author Christian Dupuis
*/
@SuppressWarnings("restriction")
public class RemoveConstructorParamQuickFixProposalTest extends AbstractBeanFileQuickfixTestCase {

  private IJavaProject javaProject;

  private void applyProposal(String beanName, int removal, int original, String className) throws JavaModelException {
    IDOMNode beanNode = QuickfixTestUtil.getNode(BeansSchemaConstants.ELEM_BEAN, beanName, beansNode
        .getChildNodes());
    AttrImpl classAttr = (AttrImpl) beanNode.getAttributes().getNamedItem(BeansSchemaConstants.ATTR_CLASS);
    ITextRegion valueRegion = classAttr.getValueRegion();

    int offset = getOffset(valueRegion, beanNode);
    int length = getLength(valueRegion, false);

    IType type = javaProject.findType(className);

    IMethod constructor = null;

    IMethod[] methods = type.getMethods();
    for (IMethod method : methods) {
      if (method.isConstructor() && method.getNumberOfParameters() == original) {
        constructor = method;
        break;
      }
    }
    RemoveConstructorParamQuickFixProposal proposal = new RemoveConstructorParamQuickFixProposal(offset, length,
        false, removal, constructor, "", javaProject);
    proposal.apply(document);

  }

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

    openBeanEditor("src/remove-constructor-param-proposal.xml");

    javaProject = JavaCore.create(project);
  }

  public void testRemove1ConstructorParamFrom1() throws JavaModelException {
    String className = "com.test.AccountContribution";
    IType type = javaProject.findType(className);

    assertFalse("Constructor with 0 param should not exist before applying proposal.", Introspector.hasConstructor(
        type, 0, false));
    applyProposal("removeConstructorParamTest1", 1, 1, className);
    assertTrue("Expects constructor with 0 param to be created", Introspector.hasConstructor(type, 0, false));
  }

  public void testRemove1ConstructorParamsFrom2() throws JavaModelException {
    String className = "com.test.Restaurant";
    IType type = javaProject.findType(className);

    assertFalse("Constructor with 1 param should not exist before applying proposal.", Introspector.hasConstructor(
        type, 1, false));
    applyProposal("removeConstructorParamTest2", 1, 2, className);
    assertTrue("Expects constructor with 1 param to be created", Introspector.hasConstructor(type, 1, false));
  }

  public void testRemove2ConstructorParamFrom2() throws JavaModelException {
    String className = "com.test.Restaurant";
    IType type = javaProject.findType(className);

    assertFalse("Constructor with 0 param should not exist before applying proposal.", Introspector.hasConstructor(
        type, 0, false));
    applyProposal("removeConstructorParamTest3", 2, 2, className);
    assertTrue("Expects constructor with 0 param to be created", Introspector.hasConstructor(type, 0, false));
  }

  public void testRemove2ConstructorParamsFrom2() throws JavaModelException {
    String className = "com.test.RestaurantReward";
    IType type = javaProject.findType(className);

    assertFalse("Constructor with 1 param should not exist before applying proposal.", Introspector.hasConstructor(
        type, 1, false));
    applyProposal("removeConstructorParamTest4", 2, 3, className);
    assertTrue("Expects constructor with 1 param to be created", Introspector.hasConstructor(type, 1, false));
  }

}
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