external/storm-sqe/src/test/java/com/jwplayer/sqe/trident/function/ExpandKeysTest.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
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 */
package com.jwplayer.sqe.trident.function;

import com.jwplayer.sqe.trident.ListValuesCollector;
import org.junit.Test;
import org.apache.storm.trident.tuple.TridentTuple;
import org.apache.storm.trident.tuple.TridentTupleView;
import org.apache.storm.tuple.Fields;

import java.util.HashMap;
import java.util.Map;

import static org.junit.Assert.*;


public class ExpandKeysTest {
    @Test
    public void testExpand() {
        ExpandKeys expandKeys = new ExpandKeys();
        Map<String, Integer> map = new HashMap<>();

        map.put("A", 1);
        map.put("B", 2);
        map.put("C", 3);
        map.put("D", 4);

        TridentTuple tuple = TridentTupleView.createFreshTuple(new Fields("Map"), map);
        ListValuesCollector collector = new ListValuesCollector();

        expandKeys.execute(tuple, collector);

        assertEquals(collector.values.size(), 4);
        assertEquals(collector.values.get(0).get(0), "A");
        assertEquals(collector.values.get(1).get(0), "B");
        assertEquals(collector.values.get(2).get(0), "C");
        assertEquals(collector.values.get(3).get(0), "D");
    }
}