KyuubiYoru
107 lines
4.0 KiB
C#
107 lines
4.0 KiB
C#
using System.Text.Json;
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using FinalFactory.Rendezvous.Contracts;
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namespace FinalFactory.Rendezvous.Tests.Contracts;
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public sealed class ContractSerializationTests
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{
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public static TheoryData<string, Type> GoldenJsonVectors => new()
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{
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{ "register-session.json", typeof(RegisterSessionRequest) },
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{ "register-session-response.json", typeof(RegisterSessionResponse) },
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{ "browse-sessions.json", typeof(BrowseSessionsResponse) },
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{ "create-join-response.json", typeof(CreateJoinAttemptResponse) },
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{ "api-error.json", typeof(ApiError) },
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};
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[Theory]
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[MemberData(nameof(GoldenJsonVectors))]
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public void CanonicalJsonRoundtripsGoldenVectors(string fileName, Type contractType)
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{
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string expected = ContractTestFiles.Read(fileName);
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object? value = JsonSerializer.Deserialize(expected, contractType, ContractJson.Options);
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Assert.NotNull(value);
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Assert.Equal(expected, JsonSerializer.Serialize(value, contractType, ContractJson.Options));
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}
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[Fact]
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public void IdentifiersAreSerializedAsStrings()
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{
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SessionListingId id = new(new Guid("00112233-4455-6677-8899-aabbccddeeff"));
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Assert.Equal(
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"\"00112233-4455-6677-8899-aabbccddeeff\"",
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JsonSerializer.Serialize(id, ContractJson.Options));
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Assert.Equal(id, JsonSerializer.Deserialize<SessionListingId>(
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"\"00112233-4455-6677-8899-aabbccddeeff\"",
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ContractJson.Options));
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}
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[Fact]
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public void UnknownObjectFieldsAreIgnoredForAdditiveV1Changes()
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{
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const string json = """
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{"contractVersion":1,"idempotencyKey":"join-001","gameId":"space-game","environmentId":"production","listingId":"00112233-4455-6677-8899-aabbccddeeff","protocolVersion":7,"futureField":{"nested":true}}
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""";
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CreateJoinAttemptRequest? request = JsonSerializer.Deserialize<CreateJoinAttemptRequest>(
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json,
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ContractJson.Options);
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Assert.NotNull(request);
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Assert.Equal(new GameId("space-game"), request.GameId);
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Assert.Equal(7u, request.ProtocolVersion);
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}
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[Fact]
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public void MissingNormativeFieldsAreRejectedInsteadOfDefaulted()
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{
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const string missingVersion = """
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{"idempotencyKey":"join-001","gameId":"space-game","environmentId":"production","listingId":"00112233-4455-6677-8899-aabbccddeeff","protocolVersion":7}
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""";
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Assert.Throws<JsonException>(() => JsonSerializer.Deserialize<CreateJoinAttemptRequest>(
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missingVersion,
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ContractJson.Options));
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}
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[Fact]
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public void UnknownEnumNamesAndNumericValuesAreRejected()
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{
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Assert.Throws<JsonException>(() => JsonSerializer.Deserialize<ReportConnectionOutcomeRequest>(
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"{\"contractVersion\":1,\"outcome\":\"futureOutcome\",\"elapsedBucket\":\"underOneSecond\"}",
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ContractJson.Options));
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Assert.Throws<JsonException>(() => JsonSerializer.Deserialize<ReportConnectionOutcomeRequest>(
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"{\"contractVersion\":1,\"outcome\":99,\"elapsedBucket\":\"underOneSecond\"}",
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ContractJson.Options));
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}
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[Theory]
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[InlineData(0)]
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[InlineData(2)]
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[InlineData(int.MaxValue)]
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public void UnknownContractVersionsFailPredictably(int version)
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{
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Assert.Equal(
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RendezvousErrorCode.UnsupportedContractVersion,
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ContractValidation.ValidateContractVersion(version));
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}
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[Fact]
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public void GameplayProtocolCompatibilityIsExactAndBuildIndependent()
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{
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Assert.True(ContractValidation.AreProtocolsCompatible(7, 7));
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Assert.False(ContractValidation.AreProtocolsCompatible(7, 8));
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}
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[Fact]
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public void SharedCanonicalOptionsCannotBeMutatedByConsumers()
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{
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Assert.Equal(9, ContractJson.Options.MaxDepth);
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Assert.True(ContractJson.Options.IsReadOnly);
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Assert.Throws<InvalidOperationException>(() =>
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ContractJson.Options.WriteIndented = true);
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}
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}
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