Read reference files from the resource folder.

(28. November 2020, en)

For testing correct file outputs, I tend to have the reference files with the expected result in the resource folder. And to streamline things, I use these convenience functions (path needs to start with / to target the right resource file).

package org.bargsten.testkit;

import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.util.zip.GZIPInputStream;
import org.apache.commons.io.IOUtils;

public final class TestFileUtil {

  private TestFileUtil() {
  }

  public static String getResourceContent(Object o, String path) throws IOException {
    InputStream resourceAsStream = o.getClass().getResourceAsStream(path);
    return IOUtils.toString(resourceAsStream, StandardCharsets.UTF_8);
  }

  public static byte[] getResourceBytes(Object o, String path) throws IOException {
    InputStream resourceAsStream = o.getClass().getResourceAsStream(path);
    return IOUtils.toByteArray(resourceAsStream);
  }

  public static String getGzippedResourceContent(Object o, String path) throws IOException {
    InputStream resourceAsStream = o.getClass().getResourceAsStream(path);
    return IOUtils.toString(new GZIPInputStream(resourceAsStream), StandardCharsets.UTF_8);
  }

  public static byte[] getGzippedResourceBytes(Object o, String path) throws IOException {
    InputStream resourceAsStream = o.getClass().getResourceAsStream(path);
    return IOUtils.toByteArray(new GZIPInputStream(resourceAsStream));
  }
}