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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.test.runner.junit4;
     17 
     18 import org.junit.runners.BlockJUnit4ClassRunner;
     19 import org.junit.runners.model.FrameworkMethod;
     20 import org.junit.runners.model.InitializationError;
     21 import org.junit.runners.model.Statement;
     22 
     23 /**
     24  * A specialized {@link BlockJUnit4ClassRunner} that will generate test results, by skipping test
     25  * execution and loading.
     26  */
     27 class NonExecutingJUnit4ClassRunner extends BlockJUnit4ClassRunner {
     28 
     29     private static final Statement NON_EXECUTING_STATEMENT = new Statement() {
     30         @Override
     31         public void evaluate() throws Throwable {
     32             // do nothing
     33         }
     34     };
     35 
     36     public NonExecutingJUnit4ClassRunner(Class<?> klass) throws InitializationError {
     37         super(klass);
     38     }
     39 
     40     /**
     41      * Override parent to generate an non executing statement
     42      */
     43     @Override
     44     protected Statement methodBlock(FrameworkMethod method) {
     45         return NON_EXECUTING_STATEMENT;
     46     }
     47 }
     48