BlockAllFilterTest.java example

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Hydrograph-master
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 * Licensed under the Apache License, Version 2.0 (the "License");
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package hydrograph.engine.cascading.filters;

import cascading.operation.Filter;
import cascading.pipe.Each;
import cascading.pipe.Pipe;
import cascading.tuple.Fields;
import cascading.tuple.Tuple;
import com.hotels.plunger.Bucket;
import com.hotels.plunger.Data;
import com.hotels.plunger.DataBuilder;
import com.hotels.plunger.Plunger;
import hydrograph.engine.cascading.filters.BlockAllFilter;
import org.junit.Test;

import java.util.List;

import static org.junit.Assert.assertTrue;

public class BlockAllFilterTest {

	@Test
	public void itShouldRemoveEveryRecord() {
		Filter filter = new BlockAllFilter();
		Plunger plunger = new Plunger();
		Data data = new DataBuilder(new Fields("id", "name", "surname", "city", "phone"))
				.addTuple(1, "abc", "xyz", "kyn", "98").addTuple(1, "pqr", "stu", "mum", "82").build();
		Pipe words = plunger.newNamedPipe("records", data);
		Pipe pipesToTest = new Each(words, filter);
		Bucket bucket = plunger.newBucket(new Fields("id", "name", "surname", "city", "phone"), pipesToTest);
		List<Tuple> actual = bucket.result().asTupleList();
		assertTrue(actual.isEmpty());
	}

}