content: /*
   * Copyright (C) 2015 The Android Open Source Project
   *
   * 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 androidx.test.internal.util;
  
  import java.lang.reflect.Method;
  import java.lang.reflect.Modifier;
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  
  /** Util methods for {@link androidx.test.internal.runner.AndroidRunnerBuilder} */
  public class AndroidRunnerBuilderUtil {
  
    /**
     * Checks if a particular test class is a JUnit3 test
     *
     * @param testClass test class to check
     * @return true if the test class is a JUnit3 test
     */
    public static boolean isJUnit3Test(Class<?> testClass) {
      return TestCase.class.isAssignableFrom(testClass);
    }
  
    /**
     * Checks if a particular test class is a JUnit3 test suite
     *
     * @param testClass test class to check
     * @return true if the test class is a JUnit3 test suite
     */
    public static boolean isJUnit3TestSuite(Class<?> testClass) {
      return TestSuite.class.isAssignableFrom(testClass);
    }
  
    /**
     * Checks if a JUnit3 test class has a suite method
     *
     * @param testClass test class to check
     * @return true if the test class has a suite method
     */
    public static boolean hasSuiteMethod(Class<?> testClass) {
      try {
        testClass.getMethod("suite");
      } catch (NoSuchMethodException e) {
        return false;
      }
      return true;
    }
  
    public static boolean hasJUnit3TestMethod(Class<?> loadedClass) {
      for (Method testMethod : loadedClass.getMethods()) {
        if (isPublicTestMethod(testMethod)) {
          return true;
        }
      }
      return false;
    }
  
    /** copied from junit.framework.TestSuite */
    private static boolean isPublicTestMethod(Method m) {
      return isTestMethod(m) && Modifier.isPublic(m.getModifiers());
    }
  
    /** copied from junit.framework.TestSuite */
    private static boolean isTestMethod(Method m) {
      return m.getParameterTypes().length == 0
          && m.getName().startsWith("test")
          && m.getReturnType().equals(Void.TYPE);
    }
  }
  