content: /*
   * Copyright (C) 2021 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.runner;
  
  /**
   * A special runner to indicate that the class is not a valid test because it has no methods.
   *
   * <p>Ideally we would just default to the upstream JUnit behavior to handle this case, but for
   * historical reasons this condition has been ignored when class path scanning for tests, and
   * changing it now may introduce painful migration for users. See b/203614578
   */
  public class EmptyTestRunner extends ErrorReportingRunner {
  
    public EmptyTestRunner(Class<?> clazz) {
      super(
          clazz.getName(),
          new RuntimeException(
              String.format("Invalid test class '%s': No test methods found", clazz.getName())));
    }
  
    public EmptyTestRunner(Class<?> clazz, Throwable t) {
      super(clazz.getName(), t);
    }
  }
  