openide/plugins/junit_rt/src/com/intellij/junit4/JUnit46ClassesRequestBuilder.java

/*
 * Copyright 2000-2009 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.
 */

/*
 * User: anna
 * Date: 11-Jun-2009
 */
package com.intellij.junit4;

import org.junit.internal.builders.AllDefaultPossibilitiesBuilder;
import org.junit.runner.Request;
import org.junit.runner.Runner;
import org.junit.runners.model.InitializationError;

import java.util.Iterator;
import java.util.Map;
import java.util.Set;

public class JUnit46ClassesRequestBuilder {
  private JUnit46ClassesRequestBuilder() {}

  public static Request getClassesRequest(final String suiteName, Class[] classes, Map classMethods) {
    boolean canUseSuiteMethod = canUseSuiteMethod(classMethods);
    try {
      final AllDefaultPossibilitiesBuilder builder = new AllDefaultPossibilitiesBuilder(canUseSuiteMethod);
      final Runner suite = new IdeaSuite(builder, classes, suiteName);
      return Request.runner(suite);
    }
    catch (InitializationError e) {
      throw new RuntimeException(e);
    }
  }

  private static boolean canUseSuiteMethod(Map classMethods) {
    for (Iterator iterator = classMethods.keySet().iterator(); iterator.hasNext(); ) {
      Object className = iterator.next();
      Set methods = (Set) classMethods.get(className);
      if (methods == null) {
        return true;
      }
      for (Iterator iterator1 = methods.iterator(); iterator1.hasNext(); ) {
        String methodName = (String)iterator1.next();
        if ("suite".equals(methodName)) {
          return true;
        }
      }
    }
    return classMethods.isEmpty();
  }
}