ctx.write(EasyMock.eq(new VarIntWritable(TasteHadoopUtils.idToIndex(123L))), matchInitializedFeatureVector(3.0, 3));
EasyMock.replay(ctx);
ParallelALSFactorizationJob.InitializeMReducer reducer = new ParallelALSFactorizationJob.InitializeMReducer();
setField(reducer, "numFeatures", 3);
reducer.reduce(new VarLongWritable(123L), Arrays.asList(new FloatWritable(4.0f), new FloatWritable(2.0f)), ctx);
EasyMock.verify(ctx);
}