public async Task SignUp()
{
ParseUser user = new ParseUser {
Username = username,
Password = password,
Email = email,
Mobile = mobile
};
await user.SignUp();
TestContext.WriteLine(user.Username);
TestContext.WriteLine(user.Password);
Assert.NotNull(user.ObjectId);
TestContext.WriteLine(user.ObjectId);
Assert.NotNull(user.SessionToken);
TestContext.WriteLine(user.SessionToken);
Assert.AreEqual(user.Email, email);
}