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// Copyright 2015 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.android.ideinfo;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.fail;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.protobuf.MessageLite;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;
import java.util.Map;
import javax.annotation.Nonnull;
/**
* Unit tests for {@link PackageParser}
*/
@RunWith(JUnit4.class)
public class PackageParserTest {
private static class MockPackageParserIoProvider extends PackageParserIoProvider {
private final Map<Path, InputStream> sources = Maps.newHashMap();
private StringWriter writer = new StringWriter();
public MockPackageParserIoProvider addSource(String filePath, String javaSrc) {
try {
sources.put(Paths.get(filePath), new ByteArrayInputStream(javaSrc.getBytes("UTF-8")));
} catch (UnsupportedEncodingException e) {
fail(e.getMessage());
}
return this;
}
public void reset() {
sources.clear();
writer = new StringWriter();
}
public List<Path> getPaths() {
return Lists.newArrayList(sources.keySet());
}
@Nonnull
@Override
public BufferedReader getReader(Path file) throws IOException {
InputStream input = sources.get(file);
return new BufferedReader(new InputStreamReader(input, StandardCharsets.UTF_8));
}
@Override
public void writeProto(@Nonnull MessageLite message, @Nonnull Path file) throws IOException {
writer.write(message.toString());
}
}
private MockPackageParserIoProvider mockIoProvider;
private PackageParser parser;
@Before
public void setUp() {
mockIoProvider = new MockPackageParserIoProvider();
parser = new PackageParser(mockIoProvider);
}
private Map<Path, String> parsePackageStrings() throws Exception {
List<Path> paths = mockIoProvider.getPaths();
return parser.parsePackageStrings(paths, paths);
}
@Test
public void testParseCommandLineArguments() throws Exception {
String[] args = new String[] {
"--output_manifest",
"/tmp/out.manifest",
"--sources_absolute_paths",
"/path/test1.java:/path/test2.java",
"--sources_execution_paths",
"/path/test1.java:/path/test2.java"
};
PackageParser.PackageParserOptions options = PackageParser.parseArgs(args);
assertThat(options.outputManifest.toString()).isEqualTo("/tmp/out.manifest");
assertThat(options.sourcesAbsolutePaths).hasSize(2);
assertThat(options.sourcesExecutionPaths).hasSize(2);
assertThat(options.sourcesAbsolutePaths.get(0).toString()).isEqualTo("/path/test1.java");
assertThat(options.sourcesAbsolutePaths.get(1).toString()).isEqualTo("/path/test2.java");
}
@Test
public void testReadNoSources() throws Exception {
Map<Path, String> map = parsePackageStrings();
assertThat(map).isEmpty();
}
@Test
public void testSingleRead() throws Exception {
mockIoProvider
.addSource("java/com/google/Bla.java",
"package com.test;\n public class Bla {}\"");
Map<Path, String> map = parsePackageStrings();
assertThat(map).hasSize(1);
assertThat(map).containsEntry(Paths.get("java/com/google/Bla.java"), "com.test");
}
@Test
public void testMultiRead() throws Exception {
mockIoProvider
.addSource("java/com/google/Bla.java",
"package com.test;\n public class Bla {}\"")
.addSource("java/com/other/Foo.java",
"package com.other;\n public class Foo {}\"");
Map<Path, String> map = parsePackageStrings();
assertThat(map).hasSize(2);
assertThat(map).containsEntry(Paths.get("java/com/google/Bla.java"), "com.test");
assertThat(map).containsEntry(Paths.get("java/com/other/Foo.java"), "com.other");
}
@Test
public void testReadSomeInvalid() throws Exception {
mockIoProvider
.addSource("java/com/google/Bla.java",
"package %com.test;\n public class Bla {}\"")
.addSource("java/com/other/Foo.java",
"package com.other;\n public class Foo {}\"");
Map<Path, String> map = parsePackageStrings();
assertThat(map).hasSize(1);
assertThat(map).containsEntry(Paths.get("java/com/other/Foo.java"), "com.other");
}
@Test
public void testReadAllInvalid() throws Exception {
mockIoProvider
.addSource("java/com/google/Bla.java",
"#package com.test;\n public class Bla {}\"")
.addSource("java/com/other/Foo.java",
"package com.other\n public class Foo {}\"");
Map<Path, String> map = parsePackageStrings();
assertThat(map).isEmpty();
}
@Test
public void testWriteEmptyMap() throws Exception {
parser.writeManifest(
Maps.<Path, String> newHashMap(), Paths.get("/java/com/google/test.manifest"));
assertThat(mockIoProvider.writer.toString()).isEmpty();
}
@Test
public void testWriteMap() throws Exception {
Map<Path, String> map = ImmutableMap.of(
Paths.get("/java/com/google/Bla.java"), "com.google",
Paths.get("/java/com/other/Foo.java"), "com.other"
);
parser.writeManifest(map, Paths.get("/java/com/google/test.manifest"));
String writtenString = mockIoProvider.writer.toString();
assertThat(writtenString).contains("absolute_path: \"/java/com/google/Bla.java\"");
assertThat(writtenString).contains("package_string: \"com.google\"");
assertThat(writtenString).contains("absolute_path: \"/java/com/other/Foo.java\"");
assertThat(writtenString).contains("package_string: \"com.other\"");
}
}
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