LongValueToUnsignedIntValueTest.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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,
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 * See the License for the specific language governing permissions and
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package org.apache.flink.graph.asm.translate.translators;

import org.apache.flink.graph.asm.translate.TranslateFunction;
import org.apache.flink.types.IntValue;
import org.apache.flink.types.LongValue;
import org.junit.Test;

import static org.junit.Assert.assertEquals;

public class LongValueToUnsignedIntValueTest {

	private TranslateFunction<LongValue, IntValue> translator = new LongValueToUnsignedIntValue();

	private IntValue reuse = new IntValue();

	@Test
	public void testTranslation() throws Exception {
		assertEquals(new IntValue(0), translator.translate(new LongValue(0L), reuse));
		assertEquals(new IntValue(Integer.MIN_VALUE), translator.translate(new LongValue((long) Integer.MAX_VALUE + 1), reuse));
		assertEquals(new IntValue(-1), translator.translate(new LongValue((1L << 32) - 1), reuse));
	}

	@Test(expected=IllegalArgumentException.class)
	public void testUpperOutOfRange() throws Exception {
		translator.translate(new LongValue(1L << 32), reuse);
	}

	@Test(expected=IllegalArgumentException.class)
	public void testLowerOutOfRange() throws Exception {
		translator.translate(new LongValue(-1), reuse);
	}
}