/*
* 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
* limitations under the License.
*/
package org.apache.beam.runners.core.construction;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.apache.beam.sdk.coders.BigEndianLongCoder;
import org.apache.beam.sdk.coders.Coder;
import org.apache.beam.sdk.coders.CoderException;
import org.apache.beam.sdk.coders.ListCoder;
import org.apache.beam.sdk.coders.StringUtf8Coder;
import org.apache.beam.sdk.coders.VarIntCoder;
import org.apache.beam.sdk.coders.VarLongCoder;
import org.apache.beam.sdk.testing.CoderProperties;
import org.apache.beam.sdk.util.CoderUtils;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameter;
/**
* Tests for {@link ElementAndRestrictionCoder}.
*/
@RunWith(Parameterized.class)
public class ElementAndRestrictionCoderTest<K, V> {
private static class CoderAndData<T> {
Coder<T> coder;
List<T> data;
}
private static class AnyCoderAndData {
private CoderAndData<?> coderAndData;
}
private static <T> AnyCoderAndData coderAndData(Coder<T> coder, List<T> data) {
CoderAndData<T> coderAndData = new CoderAndData<>();
coderAndData.coder = coder;
coderAndData.data = data;
AnyCoderAndData res = new AnyCoderAndData();
res.coderAndData = coderAndData;
return res;
}
private static final List<AnyCoderAndData> TEST_DATA =
Arrays.asList(
coderAndData(
VarIntCoder.of(), Arrays.asList(-1, 0, 1, 13, Integer.MAX_VALUE, Integer.MIN_VALUE)),
coderAndData(
BigEndianLongCoder.of(),
Arrays.asList(-1L, 0L, 1L, 13L, Long.MAX_VALUE, Long.MIN_VALUE)),
coderAndData(StringUtf8Coder.of(), Arrays.asList("", "hello", "goodbye", "1")),
coderAndData(
ElementAndRestrictionCoder.of(StringUtf8Coder.of(), VarIntCoder.of()),
Arrays.asList(
ElementAndRestriction.of("", -1),
ElementAndRestriction.of("hello", 0),
ElementAndRestriction.of("goodbye", Integer.MAX_VALUE))),
coderAndData(
ListCoder.of(VarLongCoder.of()),
Arrays.asList(Arrays.asList(1L, 2L, 3L), Collections.<Long>emptyList())));
@Parameterized.Parameters(name = "{index}: keyCoder={0} key={1} valueCoder={2} value={3}")
public static Collection<Object[]> data() {
List<Object[]> parameters = new ArrayList<>();
for (AnyCoderAndData keyCoderAndData : TEST_DATA) {
Coder keyCoder = keyCoderAndData.coderAndData.coder;
for (Object key : keyCoderAndData.coderAndData.data) {
for (AnyCoderAndData valueCoderAndData : TEST_DATA) {
Coder valueCoder = valueCoderAndData.coderAndData.coder;
for (Object value : valueCoderAndData.coderAndData.data) {
parameters.add(new Object[] {keyCoder, key, valueCoder, value});
}
}
}
}
return parameters;
}
@Parameter(0)
public Coder<K> keyCoder;
@Parameter(1)
public K key;
@Parameter(2)
public Coder<V> valueCoder;
@Parameter(3)
public V value;
@Test
@SuppressWarnings("rawtypes")
public void testDecodeEncodeEqual() throws Exception {
CoderProperties.coderDecodeEncodeEqual(
ElementAndRestrictionCoder.of(keyCoder, valueCoder),
ElementAndRestriction.of(key, value));
}
@Rule public ExpectedException thrown = ExpectedException.none();
@Test
public void encodeNullThrowsCoderException() throws Exception {
thrown.expect(CoderException.class);
thrown.expectMessage("cannot encode a null ElementAndRestriction");
CoderUtils.encodeToBase64(
ElementAndRestrictionCoder.of(StringUtf8Coder.of(), VarIntCoder.of()), null);
}
}