@Before
public void setUp() {
AudioQASettings.MAPPER_OUTPUT_DIR = "output/MigrateMp3ToWav/";
MigrationMapper mapper = new MigrationMapper();
MigrateMp3ToWav.MigrationReducer reducer = new MigrateMp3ToWav.MigrationReducer();
mapDriver = new MapDriver<LongWritable, Text, LongWritable, Text>();
mapDriver.setMapper(mapper);
reduceDriver = new ReduceDriver<LongWritable, Text, LongWritable, Text>();
reduceDriver.setReducer(reducer);
mapReduceDriver =
new MapReduceDriver<LongWritable, Text, LongWritable, Text, LongWritable, Text>();
mapReduceDriver.setMapper(mapper);
mapReduceDriver.setReducer(reducer);
}
public static void verifyReducer(SmartReducer reducer, Object key, Object... values)
throws Exception {
List list = new ArrayList();
for (Object value : values) {
list.add(createWritable(value, reducer.getValueInType()));
}
ReduceDriver reduceDriver = new ReduceDriver<Text, LongWritable, Text, LongWritable>();
reduceDriver.withInput(createWritable(key, reducer.getKeyInType()), list);
reduceDriver.setReducer(reducer);
List results = reduceDriver.run();
Collections.sort(results, PairComparer.INSTANCE);
String header =
String.format(
"(%s, %s)\r\n\r\n -> reduces via %s to -> \r\n",
key, list, reducer.getClass().getSimpleName());
Approvals.verifyAll(header, results, Echo.INSTANCE);
}