ReDoSInspectionTest.java

/*
 * Copyright 2000-2017 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 org.intellij.lang.regexp.inspection;

import com.intellij.codeInspection.LocalInspectionTool;
import org.jetbrains.annotations.NotNull;

/**
 * @author Bas Leijdekkers
 */
public class ReDoSInspectionTest extends RegExpInspectionTestCase {

  public void testNestedQuantifiers1() {
    highlightTest("<warning descr=\"Potential exponential backtracking\">(.*a){10}</warning>");
  }

  public void testNestedQuantifiers2() {
    highlightTest("<warning descr=\"Potential exponential backtracking\">(a+)+</warning>");
  }

  public void testPossessiveQuantifier() {
    highlightTest("(a+)++");
  }

  public void testAtomicGroup() {
    highlightTest("(?>a+)+");
  }

  @NotNull
  @Override
  protected LocalInspectionTool getInspection() {
    return new ReDoSInspection();
  }
}