ReplaceAssertEqualsFix.java

/*
 * Copyright 2000-2016 JetBrains s.r.o.
 *
 * 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.siyeh.ig.junit;

import com.intellij.codeInspection.ProblemDescriptor;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.*;
import com.intellij.util.IncorrectOperationException;
import com.siyeh.InspectionGadgetsBundle;
import com.siyeh.ig.InspectionGadgetsFix;
import com.siyeh.ig.PsiReplacementUtil;
import com.siyeh.ig.psiutils.ImportUtils;
import org.jetbrains.annotations.NotNull;

class ReplaceAssertEqualsFix extends InspectionGadgetsFix {
  private final String myMethodName;

  public ReplaceAssertEqualsFix(String methodName) {
    myMethodName = methodName;
  }

  @Override
  @NotNull
  public String getFamilyName() {
    return InspectionGadgetsBundle.message("replace.assertequals.quickfix", myMethodName);
  }

  @Override
  protected void doFix(Project project, ProblemDescriptor descriptor) throws IncorrectOperationException {
    final PsiElement element = descriptor.getPsiElement();
    final PsiElement parent = element.getParent();
    if (!(parent instanceof PsiReferenceExpression)) {
      return;
    }
    final PsiReferenceExpression methodExpression = (PsiReferenceExpression)parent;
    final PsiElement grandParent = methodExpression.getParent();
    if (!(grandParent instanceof PsiMethodCallExpression)) {
      return;
    }
    final PsiMethodCallExpression methodCallExpression = (PsiMethodCallExpression)grandParent;
    final PsiMethod method = methodCallExpression.resolveMethod();
    if (method == null) {
      return;
    }
    final PsiClass containingClass = method.getContainingClass();
    if (containingClass ==  null) {
      return;
    }
    final String className = containingClass.getQualifiedName();
    if (className == null) {
      return;
    }
    final PsiExpression qualifier = methodExpression.getQualifierExpression();
    if (qualifier == null && ImportUtils.addStaticImport(className, myMethodName, methodExpression)) {
      PsiReplacementUtil.replaceExpression(methodExpression, myMethodName);
    }
    else {
      PsiReplacementUtil.replaceExpression(methodExpression, StringUtil.getQualifiedName(className, myMethodName));
    }
  }
}