public void SimpleWrappers()
{
Assert.AreEqual(Path.Combine("test"), FileSystem.CombinePath("test"));
Assert.AreEqual(Path.Combine("test", "1"), FileSystem.CombinePath("test", "1"));
Assert.AreEqual(Path.Combine("test/", @"1\"), FileSystem.CombinePath("test/", @"1\"));
const string aFilePath = @"hello\there.txt";
const string aFileName = "hello";
Assert.AreEqual(Path.GetExtension(aFilePath), FileSystem.FileExtension(aFilePath));
Assert.AreEqual(Path.GetExtension(aFileName), FileSystem.FileExtension(aFileName));
Assert.AreEqual(
Path.ChangeExtension(aFilePath, ".png"),
FileSystem.ChangePathExtension(aFilePath, ".png"));
Assert.AreEqual(
Path.ChangeExtension(aFileName, ".txt"),
FileSystem.ChangePathExtension(aFileName, ".txt"));
Assert.AreEqual(Path.GetDirectoryName(aFilePath), FileSystem.DirectoryName(aFilePath));
Assert.AreEqual(Path.GetDirectoryName(aFileName), FileSystem.DirectoryName(aFileName));
Assert.AreEqual(Path.HasExtension(aFilePath), FileSystem.FileHasExtension(aFilePath));
Assert.AreEqual(Path.HasExtension(aFileName), FileSystem.FileHasExtension(aFileName));
}