| // Copyright 2019 The Bazel Authors. All rights reserved. |
| // |
| // Licensed 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 com.google.devtools.build.lib.rules.genquery; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import com.google.devtools.build.lib.rules.genquery.GenQueryOutputStream.GenQueryResult; |
| import com.google.devtools.build.lib.util.Fingerprint; |
| import com.google.protobuf.ByteString; |
| import com.google.testing.junit.testparameterinjector.TestParameter; |
| import com.google.testing.junit.testparameterinjector.TestParameterInjector; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.util.zip.GZIPOutputStream; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| /** Tests for {@link GenQueryOutputStream}. */ |
| @RunWith(TestParameterInjector.class) |
| public class GenQueryOutputStreamTest { |
| |
| @TestParameter private boolean outputCompressed; |
| |
| @Test |
| public void testSmallOutputMultibyteWrite() throws IOException { |
| runMultibyteWriteTest( |
| "xyz".repeat(10_000), GenQueryOutputStream.SimpleResult.class, outputCompressed); |
| } |
| |
| @Test |
| public void testBigOutputMultibyteWrite() throws IOException { |
| runMultibyteWriteTest( |
| "xyz".repeat(1_000_000), |
| outputCompressed |
| ? GenQueryOutputStream.SimpleResult.class |
| : GenQueryOutputStream.CompressedResultWithDecompressedOutput.class, |
| outputCompressed); |
| } |
| |
| @Test |
| public void testSmallOutputSingleByteWrites() throws IOException { |
| runSingleByteWriteTest( |
| "xyz".repeat(10_000), GenQueryOutputStream.SimpleResult.class, outputCompressed); |
| } |
| |
| @Test |
| public void testBigOutputSingleByteWrites() throws IOException { |
| runSingleByteWriteTest( |
| "xyz".repeat(1_000_000), |
| outputCompressed |
| ? GenQueryOutputStream.SimpleResult.class |
| : GenQueryOutputStream.CompressedResultWithDecompressedOutput.class, |
| outputCompressed); |
| } |
| |
| private static void runMultibyteWriteTest( |
| String data, Class<? extends GenQueryResult> resultClass, boolean outputCompressed) |
| throws IOException { |
| GenQueryOutputStream underTest = new GenQueryOutputStream(outputCompressed); |
| underTest.write(data.getBytes(StandardCharsets.UTF_8)); |
| underTest.close(); |
| |
| verifyGenQueryResult(underTest.getResult(), data, resultClass, outputCompressed); |
| } |
| |
| private static void runSingleByteWriteTest( |
| String data, Class<? extends GenQueryResult> resultClass, boolean outputCompressed) |
| throws IOException { |
| GenQueryOutputStream underTest = new GenQueryOutputStream(outputCompressed); |
| for (byte b : data.getBytes(StandardCharsets.UTF_8)) { |
| underTest.write(b); |
| } |
| underTest.close(); |
| |
| verifyGenQueryResult(underTest.getResult(), data, resultClass, outputCompressed); |
| } |
| |
| private static void verifyGenQueryResult( |
| GenQueryOutputStream.GenQueryResult result, |
| String data, |
| Class<? extends GenQueryResult> resultClass, |
| boolean outputCompressed) |
| throws IOException { |
| assertThat(result).isInstanceOf(resultClass); |
| |
| if (outputCompressed) { |
| // If result is actually compressed, also compress input data so that it is comparable to what |
| // is outputted from GenQueryResult. |
| ByteString dataInByteString = ByteString.copyFromUtf8(data); |
| ByteString.Output compressedDataBytesOut = ByteString.newOutput(); |
| GZIPOutputStream gzipDataOut = new GZIPOutputStream(compressedDataBytesOut); |
| dataInByteString.writeTo(gzipDataOut); |
| gzipDataOut.finish(); |
| ByteString dataCompressedInByteString = compressedDataBytesOut.toByteString(); |
| |
| assertThat(result.getBytes()).isEqualTo(dataCompressedInByteString); |
| |
| Fingerprint actualFingerprint = new Fingerprint(); |
| result.fingerprint(actualFingerprint); |
| Fingerprint expectFingerprint = new Fingerprint(); |
| expectFingerprint.addBytes(dataCompressedInByteString); |
| assertThat(actualFingerprint.hexDigestAndReset()) |
| .isEqualTo(expectFingerprint.hexDigestAndReset()); |
| |
| ByteArrayOutputStream bytesOut = new ByteArrayOutputStream(); |
| result.writeTo(bytesOut); |
| assertThat(bytesOut.toByteArray()).isEqualTo(dataCompressedInByteString.toByteArray()); |
| } else { |
| assertThat(result.getBytes()).isEqualTo(ByteString.copyFromUtf8(data)); |
| assertThat(result.size()).isEqualTo(data.length()); |
| |
| Fingerprint actualFingerprint = new Fingerprint(); |
| result.fingerprint(actualFingerprint); |
| Fingerprint expectFingerprint = new Fingerprint(); |
| expectFingerprint.addBytes(data.getBytes(StandardCharsets.UTF_8)); |
| assertThat(actualFingerprint.hexDigestAndReset()) |
| .isEqualTo(expectFingerprint.hexDigestAndReset()); |
| |
| ByteArrayOutputStream bytesOut = new ByteArrayOutputStream(); |
| result.writeTo(bytesOut); |
| assertThat(new String(bytesOut.toByteArray(), StandardCharsets.UTF_8)).isEqualTo(data); |
| } |
| } |
| } |