public void ShouldSetGetEndpoint()
        {
            // Given
            var          options             = new TokensIssuingOptions();
            const string expectedGetEndpoint = "/api/Account/Token";

            // When
            options.WithGetEndpotint(expectedGetEndpoint);

            // Then
            Assert.Equal(expectedGetEndpoint, options.GetEndpotint);
        }
 public void WithGetEndpotintShouldValidateInput(TokensIssuingOptions options, string endpoint)
 {
     Assert.Throws <ArgumentNullException>(() => options.WithGetEndpotint(endpoint));
 }