@Override
  public void validateInputFilePatternSupported(String filepattern) {
    getGcsPath(filepattern);
    verifyPath(filepattern);
    verifyPathIsAccessible(filepattern, "Could not find file %s");
  }
@Test
  public void testFilePatternMissingBucket() {
    expectedException.expect(IllegalArgumentException.class);
    expectedException.expectMessage(
        "Missing object or bucket in path: 'gs://input/', "
            + "did you mean: 'gs://some-bucket/input'?");
    validator.validateInputFilePatternSupported("gs://input");
  }