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| 1 | +using System; |
| 2 | +using System.Text; |
| 3 | +using dpp.cot; |
| 4 | +using Xunit; |
| 5 | + |
| 6 | +namespace dpp.takclient.Tests |
| 7 | +{ |
| 8 | + public class TakClientTests |
| 9 | + { |
| 10 | + private const string SupportAdvertisementXml = |
| 11 | + "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + |
| 12 | + "<event version='2.0' uid='protouid' type='t-x-takp-v' time='2022-02-02T22:22:22Z' start='2022-02-02T22:22:22Z' stale='2022-02-02T22:32:22Z' how='m-g'>" + |
| 13 | + "<point lat='0.0' lon='0.0' hae='0.0' ce='999999' le='999999'/>" + |
| 14 | + "<detail><TakControl><TakProtocolSupport version='1'/></TakControl></detail>" + |
| 15 | + "</event>"; |
| 16 | + |
| 17 | + private const string NegotiationAcceptedXml = |
| 18 | + "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + |
| 19 | + "<event version='2.0' uid='protouid' type='t-x-takp-r' time='2022-02-02T22:22:22Z' start='2022-02-02T22:22:22Z' stale='2022-02-02T22:32:22Z' how='m-g'>" + |
| 20 | + "<point lat='0.0' lon='0.0' hae='0.0' ce='999999' le='999999'/>" + |
| 21 | + "<detail><TakControl><TakResponse status='true'/></TakControl></detail>" + |
| 22 | + "</event>"; |
| 23 | + |
| 24 | + [Fact] |
| 25 | + public void StreamingXmlUsesXmlDeclarationAndRawEvent() |
| 26 | + { |
| 27 | + var message = new Message |
| 28 | + { |
| 29 | + Event = new Event |
| 30 | + { |
| 31 | + Uid = "TEST-XML", |
| 32 | + Type = "a-f-G-U-C", |
| 33 | + How = "m-g", |
| 34 | + Time = new DateTime(2022, 2, 2, 22, 22, 22, DateTimeKind.Utc), |
| 35 | + Start = new DateTime(2022, 2, 2, 22, 22, 22, DateTimeKind.Utc), |
| 36 | + Stale = new DateTime(2022, 2, 2, 22, 32, 22, DateTimeKind.Utc), |
| 37 | + } |
| 38 | + }; |
| 39 | + |
| 40 | + var bytes = TakClient.SerializeMessage(message, TakTransportMode.StreamingXml); |
| 41 | + var payload = Encoding.UTF8.GetString(bytes); |
| 42 | + |
| 43 | + Assert.StartsWith("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<event", payload); |
| 44 | + Assert.Contains("uid=\"TEST-XML\"", payload); |
| 45 | + Assert.DoesNotContain("\u00ef", payload); |
| 46 | + Assert.DoesNotContain("magic", payload); |
| 47 | + } |
| 48 | + |
| 49 | + [Fact] |
| 50 | + public void StreamingProtobufUsesTakStreamingEnvelope() |
| 51 | + { |
| 52 | + var message = new Message |
| 53 | + { |
| 54 | + Event = new Event |
| 55 | + { |
| 56 | + Uid = "TEST-PROTO", |
| 57 | + Type = "a-f-G-U-C", |
| 58 | + How = "m-g", |
| 59 | + Time = new DateTime(2022, 2, 2, 22, 22, 22, DateTimeKind.Utc), |
| 60 | + Start = new DateTime(2022, 2, 2, 22, 22, 22, DateTimeKind.Utc), |
| 61 | + Stale = new DateTime(2022, 2, 2, 22, 32, 22, DateTimeKind.Utc), |
| 62 | + } |
| 63 | + }; |
| 64 | + |
| 65 | + var bytes = TakClient.SerializeMessage(message, TakTransportMode.StreamingProtobuf); |
| 66 | + |
| 67 | + Assert.NotEmpty(bytes); |
| 68 | + Assert.Equal(0xbf, bytes[0]); |
| 69 | + |
| 70 | + Assert.True(Message.TryParseStreaming(bytes, 0, bytes.Length, 0x01, out var parsed, out var consumed)); |
| 71 | + Assert.Equal(bytes.Length, consumed); |
| 72 | + Assert.NotNull(parsed.Event); |
| 73 | + Assert.Equal("TEST-PROTO", parsed.Event.Uid); |
| 74 | + } |
| 75 | + |
| 76 | + [Fact] |
| 77 | + public void NullMessageThrows() |
| 78 | + { |
| 79 | + Assert.Throws<ArgumentNullException>(() => TakClient.SerializeMessage(null, TakTransportMode.StreamingXml)); |
| 80 | + } |
| 81 | + |
| 82 | + [Fact] |
| 83 | + public void ProtocolSessionRequestsProtobufWhenServerAdvertisesSupport() |
| 84 | + { |
| 85 | + var session = new TakProtocolSession(TakTransportMode.StreamingProtobuf); |
| 86 | + var advertisement = Message.Parse(Encoding.UTF8.GetBytes(SupportAdvertisementXml), 39, SupportAdvertisementXml.Length - 39); |
| 87 | + |
| 88 | + var request = session.ProcessIncoming(advertisement); |
| 89 | + |
| 90 | + Assert.NotNull(request); |
| 91 | + Assert.Equal(TakTransportMode.StreamingXml, session.ActiveTransportMode); |
| 92 | + Assert.Equal(TakNegotiationState.AwaitingResponse, session.NegotiationState); |
| 93 | + Assert.Equal("t-x-takp-q", request.Event.Type); |
| 94 | + Assert.Contains("version=\"1\"", request.ToXmlString()); |
| 95 | + } |
| 96 | + |
| 97 | + [Fact] |
| 98 | + public void ProtocolSessionSwitchesToProtobufAfterPositiveResponse() |
| 99 | + { |
| 100 | + var session = new TakProtocolSession(TakTransportMode.StreamingProtobuf); |
| 101 | + var advertisement = Message.Parse(Encoding.UTF8.GetBytes(SupportAdvertisementXml), 39, SupportAdvertisementXml.Length - 39); |
| 102 | + var accepted = Message.Parse(Encoding.UTF8.GetBytes(NegotiationAcceptedXml), 39, NegotiationAcceptedXml.Length - 39); |
| 103 | + |
| 104 | + session.ProcessIncoming(advertisement); |
| 105 | + var followUp = session.ProcessIncoming(accepted); |
| 106 | + |
| 107 | + Assert.Null(followUp); |
| 108 | + Assert.Equal(TakTransportMode.StreamingProtobuf, session.ActiveTransportMode); |
| 109 | + Assert.Equal(TakNegotiationState.Complete, session.NegotiationState); |
| 110 | + } |
| 111 | + |
| 112 | + [Fact] |
| 113 | + public void ProtocolSessionBlocksApplicationMessagesWhileAwaitingResponse() |
| 114 | + { |
| 115 | + var session = new TakProtocolSession(TakTransportMode.StreamingProtobuf); |
| 116 | + var advertisement = Message.Parse(Encoding.UTF8.GetBytes(SupportAdvertisementXml), 39, SupportAdvertisementXml.Length - 39); |
| 117 | + |
| 118 | + session.ProcessIncoming(advertisement); |
| 119 | + |
| 120 | + Assert.Throws<InvalidOperationException>(() => session.Serialize(new Message |
| 121 | + { |
| 122 | + Event = new Event |
| 123 | + { |
| 124 | + Uid = "TEST-BLOCK", |
| 125 | + Type = "a-f-G-U-C", |
| 126 | + How = "m-g", |
| 127 | + }, |
| 128 | + })); |
| 129 | + } |
| 130 | + |
| 131 | + [Fact] |
| 132 | + public void XmlStreamParserConsumesDeclarationAndReturnsMessage() |
| 133 | + { |
| 134 | + var xmlBytes = Encoding.UTF8.GetBytes(SupportAdvertisementXml); |
| 135 | + |
| 136 | + Assert.True(TakMessageStreamParser.TryParseXml(xmlBytes, 0, xmlBytes.Length, out var message, out var consumed)); |
| 137 | + Assert.Equal(xmlBytes.Length, consumed); |
| 138 | + Assert.NotNull(message.Event); |
| 139 | + Assert.Equal("t-x-takp-v", message.Event.Type); |
| 140 | + } |
| 141 | + } |
| 142 | +} |
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