public void GetUserTest()
{
// Act
var result = _controller.GetUser();
// Assert
Assert.IsInstanceOf(typeof(DefaultModel), result);
Assert.AreEqual(Environment.UserName, result.UserName);
Assert.AreEqual(Environment.UserDomainName, result.UserDomainName);
Assert.AreEqual(Environment.MachineName, result.MachineName);
Assert.AreEqual(Environment.OSVersion.VersionString, result.OSVersionString);
}