public async Task NullUser_Throws()
{
UserHelper helper = new FakeUserHelper1();
await Assert.ThrowsAsync <ArgumentNullException>("user", async() =>
{
await helper.RefreshSecurityStamp <User>(user: null);
});
}
public async Task ValidUser_SetsSecurityStamp20CharactersLong()
{
UserHelper helper = new FakeUserHelper1();
var user = new User();
await helper.RefreshSecurityStamp(user);
Assert.NotNull(user.SecurityStamp);
Assert.Equal(20, user.SecurityStamp.Length);
}