LambdaParameterHidingMemberVariableInspectionTest.java

/*
 * Copyright 2000-2014 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.visibility;

import com.intellij.codeInspection.InspectionProfileEntry;
import com.siyeh.ig.LightInspectionTestCase;

/**
 * @author Bas Leijdekkers
 */
public class LambdaParameterHidingMemberVariableInspectionTest extends LightInspectionTestCase {
  @Override
  protected InspectionProfileEntry getInspection() {
    return new LambdaParameterHidingMemberVariableInspection();
  }

  @Override
  protected String[] getEnvironmentClasses() {
    return new String[] {"package java.util.function;" +
                         "public interface Function<T, R> {" +
                         "    R apply(T t);" +
                         "}"};
  }

  public void testSimple() {
    doTest("import java.util.function.Function;" +
           "class X {" +
           "  private String s;" +
           "" +
           "  void m() {" +
           "    Function<String, String> f = (/*Lambda parameter 's' hides field in class 'X'*/s/**/) -> null;" +
           "  }" +
           "}");
  }

  public void testStatic() {
    doTest("import java.util.function.Function;" +
           "class X {" +
           "  private String s;" +
           "  static Function<String, String> m() {" +
           "    return s -> null; " +
           "  }" +
           "}");
  }

  public void testStaticStatic() {
    doTest("import java.util.function.Function;" +
           "class X {" +
           "  private static String s;" +
           "  static Function<String, String> m() {" +
           "    return /*Lambda parameter 's' hides field in class 'X'*/s/**/ -> null; " +
           "  }" +
           "}");
  }
}