| /* |
| * 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.testing; |
| |
| import static org.apache.beam.sdk.testing.SerializableMatchers.allOf; |
| import static org.apache.beam.sdk.testing.SerializableMatchers.anything; |
| import static org.apache.beam.sdk.testing.SerializableMatchers.containsInAnyOrder; |
| import static org.apache.beam.sdk.testing.SerializableMatchers.kvWithKey; |
| import static org.apache.beam.sdk.testing.SerializableMatchers.not; |
| import static org.junit.Assert.assertThat; |
| |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.Serializable; |
| import org.apache.beam.sdk.coders.AtomicCoder; |
| import org.apache.beam.sdk.util.SerializableUtils; |
| import org.apache.beam.sdk.values.KV; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableList; |
| import org.hamcrest.Matchers; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExpectedException; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** |
| * Test case for {@link SerializableMatchers}. |
| * |
| * <p>Since the only new matchers are those for {@link KV}, only those are tested here, to avoid |
| * tediously repeating all of hamcrest's tests. |
| * |
| * <p>A few wrappers of a hamcrest matchers are tested for serializability. Beyond that, the |
| * boilerplate that is identical to each is considered thoroughly tested. |
| */ |
| @RunWith(JUnit4.class) |
| public class SerializableMatchersTest implements Serializable { |
| @Rule public transient ExpectedException thrown = ExpectedException.none(); |
| |
| @Test |
| public void testAnythingSerializable() throws Exception { |
| SerializableUtils.ensureSerializable(anything()); |
| } |
| |
| @Test |
| public void testAllOfSerializable() throws Exception { |
| SerializableUtils.ensureSerializable(allOf(anything())); |
| } |
| |
| @Test |
| public void testContainsInAnyOrderSerializable() throws Exception { |
| assertThat( |
| ImmutableList.of(2, 1, 3), |
| SerializableUtils.ensureSerializable(containsInAnyOrder(1, 2, 3))); |
| } |
| |
| @Test |
| public void testContainsInAnyOrderNotSerializable() throws Exception { |
| assertThat( |
| ImmutableList.of(new NotSerializableClass()), |
| SerializableUtils.ensureSerializable( |
| containsInAnyOrder(new NotSerializableClassCoder(), new NotSerializableClass()))); |
| } |
| |
| @Test |
| public void testKvKeyMatcherSerializable() throws Exception { |
| assertThat(KV.of("hello", 42L), SerializableUtils.ensureSerializable(kvWithKey("hello"))); |
| } |
| |
| @Test |
| public void testKvMatcherBasicSuccess() throws Exception { |
| assertThat(KV.of(1, 2), SerializableMatchers.kv(anything(), anything())); |
| } |
| |
| @Test |
| public void testKvMatcherKeyFailure() throws Exception { |
| AssertionError exc = |
| assertionShouldFail( |
| () -> assertThat(KV.of(1, 2), SerializableMatchers.kv(not(anything()), anything()))); |
| assertThat(exc.getMessage(), Matchers.containsString("key did not match")); |
| } |
| |
| @Test |
| public void testKvMatcherValueFailure() throws Exception { |
| AssertionError exc = |
| assertionShouldFail( |
| () -> assertThat(KV.of(1, 2), SerializableMatchers.kv(anything(), not(anything())))); |
| assertThat(exc.getMessage(), Matchers.containsString("value did not match")); |
| } |
| |
| @Test |
| public void testKvMatcherGBKLikeSuccess() throws Exception { |
| assertThat( |
| KV.of("key", ImmutableList.of(1, 2, 3)), |
| SerializableMatchers.<Object, Iterable<Integer>>kv( |
| anything(), containsInAnyOrder(3, 2, 1))); |
| } |
| |
| @Test |
| public void testKvMatcherGBKLikeFailure() throws Exception { |
| AssertionError exc = |
| assertionShouldFail( |
| () -> |
| assertThat( |
| KV.of("key", ImmutableList.of(1, 2, 3)), |
| SerializableMatchers.<String, Iterable<Integer>>kv( |
| anything(), containsInAnyOrder(1, 2, 3, 4)))); |
| assertThat(exc.getMessage(), Matchers.containsString("value did not match")); |
| } |
| |
| private static AssertionError assertionShouldFail(Runnable runnable) { |
| try { |
| runnable.run(); |
| } catch (AssertionError expected) { |
| return expected; |
| } |
| |
| throw new AssertionError("Should have failed."); |
| } |
| |
| private static class NotSerializableClass { |
| @Override |
| public boolean equals(Object other) { |
| return other instanceof NotSerializableClass; |
| } |
| |
| @Override |
| public int hashCode() { |
| return 0; |
| } |
| } |
| |
| private static class NotSerializableClassCoder extends AtomicCoder<NotSerializableClass> { |
| @Override |
| public void encode(NotSerializableClass value, OutputStream outStream) {} |
| |
| @Override |
| public NotSerializableClass decode(InputStream inStream) { |
| return new NotSerializableClass(); |
| } |
| } |
| } |