| // Copyright 2014 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.cpp; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| |
| import com.google.devtools.build.lib.vfs.FileSystem; |
| import com.google.devtools.build.lib.vfs.inmemoryfs.InMemoryFileSystem; |
| import java.io.ByteArrayOutputStream; |
| import java.io.FilterOutputStream; |
| import java.io.IOException; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Test for {@link ShowIncludesFilter}. */ |
| @RunWith(JUnit4.class) |
| public class ShowIncludesFilterTest { |
| |
| private ShowIncludesFilter showIncludesFilter; |
| private ByteArrayOutputStream output; |
| private FilterOutputStream filterOutputStream; |
| private FileSystem fs; |
| |
| @Before |
| public void setUpOutputStreams() throws IOException { |
| showIncludesFilter = new ShowIncludesFilter("foo.cpp"); |
| output = new ByteArrayOutputStream(); |
| filterOutputStream = showIncludesFilter.getFilteredOutputStream(output); |
| fs = new InMemoryFileSystem(); |
| fs.getPath("/out").createDirectory(); |
| } |
| |
| private byte[] getBytes(String str) { |
| return str.getBytes(UTF_8); |
| } |
| |
| @Test |
| public void testNotMatch() throws IOException { |
| // Normal output message with newline |
| filterOutputStream.write(getBytes("I am compiling\n")); |
| assertThat(output.toString()).isEqualTo("I am compiling\n"); |
| } |
| |
| @Test |
| public void testNotMatchThenFlushing() throws IOException { |
| // Normal output message without newline |
| filterOutputStream.write(getBytes("Still compiling")); |
| assertThat(output.toString()).isEmpty(); |
| filterOutputStream.flush(); |
| // flush to output should succeed |
| assertThat(output.toString()).isEqualTo("Still compiling"); |
| } |
| |
| @Test |
| public void testMatchPartOfNotePrefix() throws IOException { |
| // Prefix of "Note: including file:" |
| filterOutputStream.write(getBytes("Note: ")); |
| filterOutputStream.flush(); |
| // flush to output shouldn't work, because there's still a chance to match. |
| assertThat(output.toString()).isEmpty(); |
| // "Note: other info" doesn't match "Note: including file:", it's ok to flush. |
| filterOutputStream.write(getBytes("other info")); |
| filterOutputStream.flush(); |
| assertThat(output.toString()).isEqualTo("Note: other info"); |
| } |
| |
| @Test |
| public void testMatchAllOfNotePrefix() throws IOException { |
| // "Note: including file:" is the prefix |
| filterOutputStream.write(getBytes("Note: including file: bar.h")); |
| filterOutputStream.flush(); |
| // flush to output should not work, waiting for newline |
| assertThat(output.toString()).isEmpty(); |
| filterOutputStream.write(getBytes("\n")); |
| // It's a match, output should be filtered, dependency on bar.h should be found. |
| assertThat(output.toString()).isEmpty(); |
| assertThat(showIncludesFilter.getDependencies()).contains("bar.h"); |
| } |
| |
| @Test |
| // Regression tests for https://github.com/bazelbuild/bazel/issues/9172 |
| public void testFindHeaderFromAbsolutePathUnderExecroot() throws IOException { |
| // "Note: including file:" is the prefix |
| filterOutputStream.write( |
| getBytes("Note: including file: C:\\tmp\\xxxx\\execroot\\__main__\\foo\\bar\\bar.h")); |
| filterOutputStream.flush(); |
| // flush to output should not work, waiting for newline |
| assertThat(output.toString()).isEmpty(); |
| filterOutputStream.write(getBytes("\n")); |
| // It's a match, output should be filtered, dependency on bar.h should be found. |
| assertThat(output.toString()).isEmpty(); |
| assertThat(showIncludesFilter.getDependencies()).contains("foo\\bar\\bar.h"); |
| } |
| |
| @Test |
| public void testFindHeaderFromAbsolutePathOutsideExecroot() throws IOException { |
| // "Note: including file:" is the prefix |
| filterOutputStream.write(getBytes("Note: including file: C:\\system\\foo\\bar\\bar.h")); |
| filterOutputStream.flush(); |
| // flush to output should not work, waiting for newline |
| assertThat(output.toString()).isEmpty(); |
| filterOutputStream.write(getBytes("\n")); |
| // It's a match, output should be filtered, dependency on bar.h should be found. |
| assertThat(output.toString()).isEmpty(); |
| assertThat(showIncludesFilter.getDependencies()).contains("C:\\system\\foo\\bar\\bar.h"); |
| } |
| |
| @Test |
| public void testMatchSourceFileName() throws IOException { |
| filterOutputStream.write(getBytes("foo.cpp\n")); |
| // It's a match, output should be filtered, no dependency found. |
| assertThat(output.toString()).isEmpty(); |
| assertThat(showIncludesFilter.getDependencies()).isEmpty(); |
| } |
| |
| @Test |
| public void testMatchPartOfSourceFileName() throws IOException { |
| filterOutputStream.write(getBytes("foo")); |
| filterOutputStream.flush(); |
| assertThat(output.toString()).isEmpty(); |
| |
| filterOutputStream.write(getBytes(".h")); |
| filterOutputStream.flush(); |
| assertThat(output.toString()).isEqualTo("foo.h"); |
| } |
| } |