| /* |
| * 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.sdk.coders; |
| |
| import static org.hamcrest.Matchers.equalTo; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotEquals; |
| import static org.junit.Assert.assertThat; |
| |
| import java.io.Serializable; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| import org.apache.beam.sdk.testing.CoderProperties; |
| import org.apache.beam.sdk.values.TypeDescriptor; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.collect.Lists; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.collect.Sets; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Unit tests for {@link DelegateCoder}. */ |
| @RunWith(JUnit4.class) |
| public class DelegateCoderTest implements Serializable { |
| |
| private static final List<Set<Integer>> TEST_VALUES = |
| Arrays.asList( |
| Collections.emptySet(), |
| Collections.singleton(13), |
| new HashSet<>(Arrays.asList(31, -5, 83))); |
| |
| private static final TypeDescriptor<Set<Integer>> SET_INTEGER_TYPE_DESCRIPTOR = |
| new TypeDescriptor<Set<Integer>>() {}; |
| |
| private static final DelegateCoder<Set<Integer>, List<Integer>> TEST_CODER = |
| DelegateCoder.of( |
| ListCoder.of(VarIntCoder.of()), |
| new DelegateCoder.CodingFunction<Set<Integer>, List<Integer>>() { |
| @Override |
| public List<Integer> apply(Set<Integer> input) { |
| return Lists.newArrayList(input); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| return o != null && this.getClass() == o.getClass(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return this.getClass().hashCode(); |
| } |
| }, |
| new DelegateCoder.CodingFunction<List<Integer>, Set<Integer>>() { |
| @Override |
| public Set<Integer> apply(List<Integer> input) { |
| return Sets.newHashSet(input); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| return o != null && this.getClass() == o.getClass(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return this.getClass().hashCode(); |
| } |
| }, |
| SET_INTEGER_TYPE_DESCRIPTOR); |
| |
| @Test |
| public void testDeterministic() throws Exception { |
| for (Set<Integer> value : TEST_VALUES) { |
| CoderProperties.coderDeterministic(TEST_CODER, value, Sets.newHashSet(value)); |
| } |
| } |
| |
| @Test |
| public void testDecodeEncodeEqual() throws Exception { |
| for (Set<Integer> value : TEST_VALUES) { |
| CoderProperties.coderDecodeEncodeEqual(TEST_CODER, value); |
| } |
| } |
| |
| @Test |
| public void testSerializable() throws Exception { |
| CoderProperties.coderSerializable(TEST_CODER); |
| } |
| |
| @Test |
| public void testCoderEquals() throws Exception { |
| DelegateCoder.CodingFunction<Integer, Integer> identityFn = input -> input; |
| Coder<Integer> varIntCoder1 = DelegateCoder.of(VarIntCoder.of(), identityFn, identityFn); |
| Coder<Integer> varIntCoder2 = DelegateCoder.of(VarIntCoder.of(), identityFn, identityFn); |
| Coder<Integer> bigEndianIntegerCoder = |
| DelegateCoder.of(BigEndianIntegerCoder.of(), identityFn, identityFn); |
| |
| assertEquals(varIntCoder1, varIntCoder2); |
| assertEquals(varIntCoder1.hashCode(), varIntCoder2.hashCode()); |
| assertNotEquals(varIntCoder1, bigEndianIntegerCoder); |
| assertNotEquals(varIntCoder1.hashCode(), bigEndianIntegerCoder.hashCode()); |
| } |
| |
| @Test |
| public void testEncodedTypeDescriptorSimpleEncodedType() throws Exception { |
| assertThat( |
| DelegateCoder.of( |
| StringUtf8Coder.of(), |
| String::valueOf, |
| Integer::valueOf, |
| new TypeDescriptor<Integer>() {}) |
| .getEncodedTypeDescriptor(), |
| equalTo(TypeDescriptor.of(Integer.class))); |
| } |
| |
| @Test |
| public void testEncodedTypeDescriptor() throws Exception { |
| TypeDescriptor<Set<Integer>> typeDescriptor = new TypeDescriptor<Set<Integer>>() {}; |
| assertThat(TEST_CODER.getEncodedTypeDescriptor(), equalTo(typeDescriptor)); |
| } |
| } |