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Useful assortment of JUnit rules for integration testing

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package com.github.mlk.junit.matchers;

import com.github.mlk.junit.rules.HadoopDFSRule;
import org.apache.hadoop.fs.Path;
import org.hamcrest.Description;
import org.hamcrest.TypeSafeDiagnosingMatcher;

import java.io.IOException;

public class HadoopPathExists extends TypeSafeDiagnosingMatcher {

  private final Path path;

  public HadoopPathExists(String path) {
    this(new Path(path));
  }

  public HadoopPathExists(Path path) {
    this.path = path;
  }

  @Override
  protected boolean matchesSafely(HadoopDFSRule item, Description mismatchDescription) {
    try {
      return item.exists(path);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }


  @Override
  public void describeTo(Description description) {

  }
}