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/*
* Copyright (C) 2020 The Android Open Source Project
*
* 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.android.timezone.location.data_pipeline.steps;
import static com.android.timezone.location.common.LicenseSupport.LICENSE_FILE_NAME;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.fail;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.StandardCopyOption;
import java.nio.file.attribute.BasicFileAttributes;
/** Helper methods for test code. */
public final class TestSupport {
public static final String TEST_DATA_RESOURCE_DIR = "data/";
private TestSupport() {
}
public static Path copyTestResource(Class<?> baseClass, String testResource, Path targetDir)
throws IOException {
Files.createDirectories(targetDir);
return copyResourceAndLicense(baseClass, TEST_DATA_RESOURCE_DIR + testResource, targetDir);
}
public static Path copyTestResourceWithoutLicense(
Class<?> baseClass, String testResource, Path targetDir)
throws IOException {
Files.createDirectories(targetDir);
return copyResource(baseClass, TEST_DATA_RESOURCE_DIR + testResource, targetDir);
}
private static Path copyResourceAndLicense(Class<?> baseClass,
String relativeResourcePath, Path targetDir) throws IOException {
String dirName = "";
if (relativeResourcePath.contains("/")) {
dirName = relativeResourcePath.substring(0, relativeResourcePath.lastIndexOf('/'));
}
copyResource(baseClass, dirName + "/" + LICENSE_FILE_NAME, targetDir);
return copyResource(baseClass, relativeResourcePath, targetDir);
}
private static Path copyResource(Class<?> baseClass, String relativeResourcePath,
Path targetDir) throws IOException {
String fileName = relativeResourcePath;
if (relativeResourcePath.contains("/")) {
fileName = relativeResourcePath.substring(relativeResourcePath.lastIndexOf('/') + 1);
}
Path targetResourceFile = targetDir.resolve(fileName);
try (InputStream inputStream = baseClass.getResourceAsStream(relativeResourcePath)) {
if (inputStream == null) {
fail("resource=" + relativeResourcePath + " not found");
}
Files.copy(inputStream, targetResourceFile, StandardCopyOption.REPLACE_EXISTING);
}
return targetResourceFile;
}
public static Path createTempDir(Class<?> testClass) throws IOException {
return Files.createTempDirectory(testClass.getSimpleName());
}
public static void deleteDirectory(Path dir) throws IOException {
Files.walkFileTree(dir, new SimpleFileVisitor<>() {
@Override
public FileVisitResult visitFile(Path path, BasicFileAttributes basicFileAttributes)
throws IOException {
Files.deleteIfExists(path);
return FileVisitResult.CONTINUE;
}
@Override
public FileVisitResult postVisitDirectory(Path path, IOException e) throws IOException {
Files.delete(path);
return FileVisitResult.CONTINUE;
}
});
assertFalse(Files.exists(dir));
}
}
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