public void ShouldThrowArgumentNullExceptionWhenArgumentIsNull()
            {
                var addressFieldParser = Substitute.For <IAddressFieldParser>();
                var parser             = new AltbauWohnungenRowParser(addressFieldParser);

                Assert.That(() => parser.Parse(null), Throws.ArgumentNullException);
            }
            public void ShouldReturnNullWhenAddressFiledParserReturnsNull()
            {
                var rows = An.TableRows();
                var addressFieldParser = Substitute.For <IAddressFieldParser>();

                addressFieldParser.Parse(Arg.Any <string>()).Returns((AddressFieldParserResult)null);
                var parser = new AltbauWohnungenRowParser(addressFieldParser);

                // act
                var result = parser.Parse(rows);

                Assert.That(result, Is.Null);
            }
            public void ShouldParseHtmlTableRow()
            {
                var rows = An.TableRows();
                var addressFieldParser = Substitute.For <IAddressFieldParser>();

                addressFieldParser.Parse(Arg.Any <string>()).Returns(An.AddressFieldParserResult());
                var parser = new AltbauWohnungenRowParser(addressFieldParser);

                // act
                var result = parser.Parse(rows);

                // assert
                Assert.That(result, Is.Not.Null, "result was null");
                Assert.Multiple(() =>
                {
                    Assert.That(result.City, Is.EqualTo("Wien"), nameof(result.City));
                    Assert.That(result.Eigenmittel, Is.EqualTo(6506m), nameof(result.Eigenmittel));
                    Assert.That(result.Href, Is.EqualTo(@"nc/home/suche/altbau-wohnungen/?tx_sozaltbau_pi1%5Bad%5D=1&tx_sozaltbau_pi1%5Bmobjnr%5D=7020&tx_sozaltbau_pi1%5Bmlfd%5D=71&cHash=a39630a7a68a5c8145d3ae888be047d4"), nameof(result.Href));
                    Assert.That(result.MonatlicheKosten, Is.EqualTo(1349m), nameof(result.MonatlicheKosten));
                    Assert.That(result.NumberOfRooms, Is.EqualTo(4), nameof(result.NumberOfRooms));
                    Assert.That(result.PostalCode, Is.EqualTo(1010), nameof(result.PostalCode));
                    Assert.That(result.Street, Is.EqualTo("Gürtel Straße 3-2a/16"), nameof(result.Street));
                });
            }