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// Copyright 2017 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;
import static com.google.common.truth.Truth.assertThat;
import static java.util.stream.Collectors.joining;
import com.google.common.base.Joiner;
import com.google.common.truth.FailureMetadata;
import com.google.common.truth.Subject;
import com.google.devtools.build.android.aapt2.ResourceCompiler.CompiledType;
import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import javax.annotation.Nullable;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
/** A testing utility that allows assertions against Paths. */
public class PathsSubject extends Subject<PathsSubject, Path> {
private static final String PATH_NORMALIZER =
String.format(
"(%s)/(.*/)(javatests)",
Arrays.stream(CompiledType.values())
.map(CompiledType::asPrefix)
.map(p -> String.format("(?:%s)", p))
.collect(joining("|")));
PathsSubject(FailureMetadata failureMetadata, @Nullable Path subject) {
super(failureMetadata, subject);
}
void exists() {
if (actual() == null) {
fail("should not be null.");
}
if (!Files.exists(getSubject())) {
fail("exists.");
}
}
void containsAllArchivedFilesIn(String... paths) throws IOException {
if (actual() == null) {
fail("should not be null.");
}
exists();
assertThat(
new ZipFile(actual().toFile())
.stream()
.map(ZipEntry::getName)
.map(n -> n.replaceAll(PATH_NORMALIZER, "$1/$3"))
.collect(Collectors.toSet()))
.containsAllIn(Arrays.asList(paths));
}
void containsExactlyArchivedFilesIn(String... paths) throws IOException {
if (actual() == null) {
fail("should not be null.");
}
exists();
assertThat(
new ZipFile(actual().toFile())
.stream()
.map(ZipEntry::getName)
.map(n -> n.replaceAll(PATH_NORMALIZER, "$1/$3"))
.collect(Collectors.toSet()))
.containsExactly(paths);
}
void containsNoArchivedFilesIn(String... paths) throws IOException {
if (actual() == null) {
fail("should not be null.");
}
exists();
assertThat(
new ZipFile(actual().toFile())
.stream()
.map(ZipEntry::getName)
.map(n -> n.replaceAll(PATH_NORMALIZER, "$1/$3"))
.collect(Collectors.toSet()))
.containsNoneIn(Arrays.asList(paths));
}
void xmlContentsIsEqualTo(String... contents) {
if (actual() == null) {
fail("should not be null.");
}
exists();
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
transformer.setOutputProperty(OutputKeys.INDENT, "no");
assertThat(
normalizeXml(
newXmlDocument(factory, Files.readAllLines(getSubject(), StandardCharsets.UTF_8)),
transformer))
.isEqualTo(normalizeXml(newXmlDocument(factory, Arrays.asList(contents)), transformer));
} catch (IOException | SAXException | ParserConfigurationException | TransformerException e) {
fail(e.toString());
}
}
private Document newXmlDocument(DocumentBuilderFactory factory, List<String> contents)
throws SAXException, IOException, ParserConfigurationException {
return factory
.newDocumentBuilder()
.parse(new InputSource(new StringReader(Joiner.on("").join(contents))));
}
private String normalizeXml(Document doc, Transformer transformer) throws TransformerException {
StringWriter writer = new StringWriter();
transformer.transform(new DOMSource(doc), new StreamResult(writer));
return writer.toString().replaceAll("\n|\r", "").replaceAll(">\\s+<", "><");
}
}
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