Project file item.
Inheritance: ProjectElement
		protected void CheckCopyToOutput(ProjectFile file, CopyToOutputDirectory expected)
		{
			file.Check(
				i => i.CopyToOutput == expected,
				String.Format(
					"Project file '{0}' is expected to have 'Copy to Output Directory' set to '{1}', but now it is '{2}'.",
					file.FullName,
					expected,
					file.CopyToOutput));
		}
		protected void CheckBuildAction(ProjectFile file, BuildAction expected)
		{
			file.Check(
				i => i.BuildAction == expected,
				String.Format(
					"Project file '{0}' is expected to have 'Build Action' set to '{1}', but now it is '{2}'.",
					file.FullName,
					expected,
					file.BuildAction));
		}