/// <summary> /// Assert that a file exists and whose /// <see cref="Org.Apache.Hadoop.FS.FileStatus"/> /// entry /// declares that this is a file and not a symlink or directory. /// </summary> /// <param name="filename">name of the file</param> /// <exception cref="System.IO.IOException">IO problems during file operations</exception> protected internal virtual void AssertIsFile(Org.Apache.Hadoop.FS.Path filename) { ContractTestUtils.AssertIsFile(fileSystem, filename); }