NewPipeExtractor/extractor/src/test/java/org/schabi/newpipe/downloader/MockDownloader.java

59 lines
2.0 KiB
Java

package org.schabi.newpipe.downloader;
import com.google.gson.GsonBuilder;
import org.schabi.newpipe.extractor.downloader.Downloader;
import org.schabi.newpipe.extractor.downloader.Request;
import org.schabi.newpipe.extractor.downloader.Response;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import javax.annotation.Nonnull;
/**
* <p>
* Mocks requests by using json files created by {@link RecordingDownloader}
* </p>
*/
class MockDownloader extends Downloader {
private final String path;
private final Map<Request, Response> mocks;
public MockDownloader(@Nonnull final String path) throws IOException {
this.path = path;
this.mocks = new HashMap<>();
final File[] files = new File(path).listFiles();
if (files != null) {
for (final File file : files) {
if (file.getName().startsWith(RecordingDownloader.FILE_NAME_PREFIX)) {
final InputStreamReader reader = new InputStreamReader(new FileInputStream(
file), StandardCharsets.UTF_8);
final TestRequestResponse response = new GsonBuilder()
.create()
.fromJson(reader, TestRequestResponse.class);
reader.close();
mocks.put(response.getRequest(), response.getResponse());
}
}
}
}
@Override
public Response execute(@Nonnull final Request request) {
final Response result = mocks.get(request);
if (result == null) {
throw new NullPointerException("No mock response for request with url '" + request
.url() + "' exists in path '" + path + "'.\nPlease make sure to run the tests "
+ "with the RecordingDownloader first after changes.");
}
return result;
}
}