public void GetMailAddress_WhenCalledAndPrincipalHasEmailClaim_ReturnsEmail()
{
string email = _fixture.Create <string>();
IPrincipal principal = CreateClaimsPrincipal(new[] { new Claim(_fixture.Create <string>(), _fixture.Create <string>()), ClaimHelper.CreateEmailClaim(email) });
IClaimResolver sut = CreateSut(principal);
string result = sut.GetMailAddress();
Assert.That(result, Is.EqualTo(email));
}
