| /* |
| * 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.extensions.protobuf; |
| |
| import static org.hamcrest.Matchers.equalTo; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.google.protobuf.ByteString; |
| import java.util.Arrays; |
| import java.util.List; |
| import org.apache.beam.sdk.coders.Coder; |
| import org.apache.beam.sdk.coders.Coder.Context; |
| import org.apache.beam.sdk.coders.CoderException; |
| import org.apache.beam.sdk.coders.ListCoder; |
| import org.apache.beam.sdk.testing.CoderProperties; |
| import org.apache.beam.sdk.util.CoderUtils; |
| import org.apache.beam.sdk.values.TypeDescriptor; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableList; |
| 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 ByteStringCoder}. */ |
| @RunWith(JUnit4.class) |
| public class ByteStringCoderTest { |
| |
| private static final ByteStringCoder TEST_CODER = ByteStringCoder.of(); |
| |
| private static final List<String> TEST_STRING_VALUES = |
| Arrays.asList( |
| "", |
| "a", |
| "13", |
| "hello", |
| "a longer string with spaces and all that", |
| "a string with a \n newline", |
| "???????????????"); |
| private static final ImmutableList<ByteString> TEST_VALUES; |
| |
| static { |
| ImmutableList.Builder<ByteString> builder = ImmutableList.builder(); |
| for (String s : TEST_STRING_VALUES) { |
| builder.add(ByteString.copyFromUtf8(s)); |
| } |
| TEST_VALUES = builder.build(); |
| } |
| |
| /** |
| * Generated data to check that the wire format has not changed. To regenerate, see {@link |
| * org.apache.beam.sdk.coders.PrintBase64Encodings}. |
| */ |
| private static final List<String> TEST_ENCODINGS = |
| Arrays.asList( |
| "", |
| "YQ", |
| "MTM", |
| "aGVsbG8", |
| "YSBsb25nZXIgc3RyaW5nIHdpdGggc3BhY2VzIGFuZCBhbGwgdGhhdA", |
| "YSBzdHJpbmcgd2l0aCBhIAogbmV3bGluZQ", |
| "Pz8_Pz8_Pz8_Pz8_Pz8_"); |
| |
| @Rule public ExpectedException thrown = ExpectedException.none(); |
| |
| @Test |
| public void testDecodeEncodeEqualInAllContexts() throws Exception { |
| for (ByteString value : TEST_VALUES) { |
| CoderProperties.coderDecodeEncodeEqual(TEST_CODER, value); |
| } |
| } |
| |
| @Test |
| public void testWireFormatEncode() throws Exception { |
| CoderProperties.coderEncodesBase64(TEST_CODER, TEST_VALUES, TEST_ENCODINGS); |
| } |
| |
| @Test |
| public void testCoderDeterministic() throws Throwable { |
| TEST_CODER.verifyDeterministic(); |
| } |
| |
| @Test |
| public void testConsistentWithEquals() { |
| assertTrue(TEST_CODER.consistentWithEquals()); |
| } |
| |
| @Test |
| public void testEncodeNullThrowsCoderException() throws Exception { |
| thrown.expect(CoderException.class); |
| thrown.expectMessage("cannot encode a null ByteString"); |
| |
| CoderUtils.encodeToBase64(TEST_CODER, null); |
| } |
| |
| @Test |
| public void testNestedCoding() throws Throwable { |
| Coder<List<ByteString>> listCoder = ListCoder.of(TEST_CODER); |
| CoderProperties.coderDecodeEncodeContentsEqual(listCoder, TEST_VALUES); |
| CoderProperties.coderDecodeEncodeContentsInSameOrder(listCoder, TEST_VALUES); |
| } |
| |
| @Test |
| public void testEncodedElementByteSize() throws Throwable { |
| for (ByteString value : TEST_VALUES) { |
| byte[] encoded = CoderUtils.encodeToByteArray(TEST_CODER, value, Context.NESTED); |
| assertEquals(encoded.length, TEST_CODER.getEncodedElementByteSize(value)); |
| } |
| } |
| |
| @Test |
| public void testEncodedTypeDescriptor() throws Exception { |
| assertThat(TEST_CODER.getEncodedTypeDescriptor(), equalTo(TypeDescriptor.of(ByteString.class))); |
| } |
| } |