public virtual void TestConcatFileOnFile()
{
byte[] block = ContractTestUtils.Dataset(TestFileLen, 0, 255);
ContractTestUtils.CreateFile(GetFileSystem(), target, false, block);
GetFileSystem().Concat(target, new Path[] { srcFile });
ContractTestUtils.AssertFileHasLength(GetFileSystem(), target, TestFileLen * 2);
ContractTestUtils.ValidateFileContent(ContractTestUtils.ReadDataset(GetFileSystem
(), target, TestFileLen * 2), new byte[][] { block, block });
}
