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Feature/re route specific handlers (#269)
* #264 added handlers to config * #264 added global handlers object and defaut param for method, not sure this is correct api for users yet * #264 Can now add all sorts of delegating handlers in all sorts of ways * +semver: breaking #264
This commit is contained in:
Tom Pallister
@ -19,18 +19,179 @@ namespace Ocelot.UnitTests.Requester
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public class DelegatingHandlerHandlerProviderFactoryTests
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{
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private DelegatingHandlerHandlerFactory _factory;
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private Mock<IOcelotLoggerFactory> _loggerFactory;
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private readonly Mock<IOcelotLoggerFactory> _loggerFactory;
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private DownstreamReRoute _request;
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private Response<List<Func<DelegatingHandler>>> _provider;
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private Response<List<Func<DelegatingHandler>>> _result;
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private readonly Mock<IQosProviderHouse> _qosProviderHouse;
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private readonly Mock<ITracingHandlerFactory> _tracingFactory;
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private IServiceProvider _serviceProvider;
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private readonly IServiceCollection _services;
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public DelegatingHandlerHandlerProviderFactoryTests()
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{
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_tracingFactory = new Mock<ITracingHandlerFactory>();
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_qosProviderHouse = new Mock<IQosProviderHouse>();
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_loggerFactory = new Mock<IOcelotLoggerFactory>();
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_services = new ServiceCollection();
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}
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[Fact]
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public void should_follow_ordering_add_specifics()
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{
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var reRoute = new DownstreamReRouteBuilder().WithIsQos(true)
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.WithHttpHandlerOptions(new HttpHandlerOptions(true, true, true))
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.WithDelegatingHandlers(new List<string>
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{
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"FakeDelegatingHandler",
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"FakeDelegatingHandlerTwo"
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})
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.WithReRouteKey("")
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.Build();
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this.Given(x => GivenTheFollowingRequest(reRoute))
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.And(x => GivenTheTracingFactoryReturns())
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.And(x => GivenTheQosProviderHouseReturns(new OkResponse<IQoSProvider>(It.IsAny<PollyQoSProvider>())))
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.And(x => GivenTheServiceProviderReturnsGlobalDelegatingHandlers<FakeDelegatingHandlerThree, FakeDelegatingHandlerFour>())
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.And(x => GivenTheServiceProviderReturnsSpecificDelegatingHandlers<FakeDelegatingHandler, FakeDelegatingHandlerTwo>())
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.When(x => WhenIGet())
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.Then(x => ThenThereIsDelegatesInProvider(6))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandlerThree>(0))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandlerFour>(1))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandler>(2))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandlerTwo>(3))
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.And(x => ThenHandlerAtPositionIs<FakeTracingHandler>(4))
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.And(x => ThenHandlerAtPositionIs<PollyCircuitBreakingDelegatingHandler>(5))
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.BDDfy();
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}
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[Fact]
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public void should_follow_ordering_order_specifics_and_globals()
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{
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var reRoute = new DownstreamReRouteBuilder().WithIsQos(true)
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.WithHttpHandlerOptions(new HttpHandlerOptions(true, true, true))
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.WithDelegatingHandlers(new List<string>
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{
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"FakeDelegatingHandlerTwo",
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"FakeDelegatingHandler",
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"FakeDelegatingHandlerFour"
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})
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.WithReRouteKey("")
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.Build();
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this.Given(x => GivenTheFollowingRequest(reRoute))
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.And(x => GivenTheTracingFactoryReturns())
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.And(x => GivenTheQosProviderHouseReturns(new OkResponse<IQoSProvider>(It.IsAny<PollyQoSProvider>())))
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.And(x => GivenTheServiceProviderReturnsGlobalDelegatingHandlers<FakeDelegatingHandlerFour, FakeDelegatingHandlerThree>())
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.And(x => GivenTheServiceProviderReturnsSpecificDelegatingHandlers<FakeDelegatingHandler, FakeDelegatingHandlerTwo>())
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.When(x => WhenIGet())
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.Then(x => ThenThereIsDelegatesInProvider(6))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandlerThree>(0)) //first because global not in config
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandlerTwo>(1)) //first from config
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandler>(2)) //second from config
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandlerFour>(3)) //third from config (global)
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.And(x => ThenHandlerAtPositionIs<FakeTracingHandler>(4))
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.And(x => ThenHandlerAtPositionIs<PollyCircuitBreakingDelegatingHandler>(5))
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.BDDfy();
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}
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[Fact]
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public void should_follow_ordering_order_specifics()
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{
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var reRoute = new DownstreamReRouteBuilder().WithIsQos(true)
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.WithHttpHandlerOptions(new HttpHandlerOptions(true, true, true))
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.WithDelegatingHandlers(new List<string>
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{
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"FakeDelegatingHandlerTwo",
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"FakeDelegatingHandler"
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})
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.WithReRouteKey("")
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.Build();
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this.Given(x => GivenTheFollowingRequest(reRoute))
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.And(x => GivenTheTracingFactoryReturns())
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.And(x => GivenTheQosProviderHouseReturns(new OkResponse<IQoSProvider>(It.IsAny<PollyQoSProvider>())))
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.And(x => GivenTheServiceProviderReturnsGlobalDelegatingHandlers<FakeDelegatingHandlerThree, FakeDelegatingHandlerFour>())
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.And(x => GivenTheServiceProviderReturnsSpecificDelegatingHandlers<FakeDelegatingHandler, FakeDelegatingHandlerTwo>())
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.When(x => WhenIGet())
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.Then(x => ThenThereIsDelegatesInProvider(6))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandlerThree>(0))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandlerFour>(1))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandlerTwo>(2))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandler>(3))
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.And(x => ThenHandlerAtPositionIs<FakeTracingHandler>(4))
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.And(x => ThenHandlerAtPositionIs<PollyCircuitBreakingDelegatingHandler>(5))
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.BDDfy();
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}
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[Fact]
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public void should_follow_ordering_order_and_only_add_specifics_in_config()
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{
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var reRoute = new DownstreamReRouteBuilder().WithIsQos(true)
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.WithHttpHandlerOptions(new HttpHandlerOptions(true, true, true))
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.WithDelegatingHandlers(new List<string>
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{
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"FakeDelegatingHandler",
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})
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.WithReRouteKey("")
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.Build();
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this.Given(x => GivenTheFollowingRequest(reRoute))
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.And(x => GivenTheTracingFactoryReturns())
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.And(x => GivenTheQosProviderHouseReturns(new OkResponse<IQoSProvider>(It.IsAny<PollyQoSProvider>())))
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.And(x => GivenTheServiceProviderReturnsGlobalDelegatingHandlers<FakeDelegatingHandlerThree, FakeDelegatingHandlerFour>())
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.And(x => GivenTheServiceProviderReturnsSpecificDelegatingHandlers<FakeDelegatingHandler, FakeDelegatingHandlerTwo>())
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.When(x => WhenIGet())
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.Then(x => ThenThereIsDelegatesInProvider(5))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandlerThree>(0))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandlerFour>(1))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandler>(2))
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.And(x => ThenHandlerAtPositionIs<FakeTracingHandler>(3))
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.And(x => ThenHandlerAtPositionIs<PollyCircuitBreakingDelegatingHandler>(4))
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.BDDfy();
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}
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[Fact]
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public void should_follow_ordering_dont_add_specifics()
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{
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var reRoute = new DownstreamReRouteBuilder().WithIsQos(true)
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.WithHttpHandlerOptions(new HttpHandlerOptions(true, true, true))
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.WithReRouteKey("")
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.Build();
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this.Given(x => GivenTheFollowingRequest(reRoute))
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.And(x => GivenTheTracingFactoryReturns())
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.And(x => GivenTheQosProviderHouseReturns(new OkResponse<IQoSProvider>(It.IsAny<PollyQoSProvider>())))
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.And(x => GivenTheServiceProviderReturnsGlobalDelegatingHandlers<FakeDelegatingHandler, FakeDelegatingHandlerTwo>())
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.And(x => GivenTheServiceProviderReturnsSpecificDelegatingHandlers<FakeDelegatingHandler, FakeDelegatingHandlerTwo>())
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.When(x => WhenIGet())
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.Then(x => ThenThereIsDelegatesInProvider(4))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandler>(0))
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.And(x => ThenHandlerAtPositionIs<FakeDelegatingHandlerTwo>(1))
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.And(x => ThenHandlerAtPositionIs<FakeTracingHandler>(2))
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.And(x => ThenHandlerAtPositionIs<PollyCircuitBreakingDelegatingHandler>(3))
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.BDDfy();
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}
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[Fact]
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public void should_apply_re_route_specific()
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{
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var reRoute = new DownstreamReRouteBuilder()
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.WithHttpHandlerOptions(new HttpHandlerOptions(true, true, false))
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.WithDelegatingHandlers(new List<string>
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{
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"FakeDelegatingHandler",
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"FakeDelegatingHandlerTwo"
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})
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.WithReRouteKey("")
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.Build();
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this.Given(x => GivenTheFollowingRequest(reRoute))
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.And(x => GivenTheQosProviderHouseReturns(new OkResponse<IQoSProvider>(It.IsAny<PollyQoSProvider>())))
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.And(x => GivenTheServiceProviderReturnsSpecificDelegatingHandlers<FakeDelegatingHandler, FakeDelegatingHandlerTwo>())
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.When(x => WhenIGet())
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.Then(x => ThenThereIsDelegatesInProvider(2))
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.And(x => ThenTheDelegatesAreAddedCorrectly())
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.BDDfy();
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}
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[Fact]
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@ -41,7 +202,7 @@ namespace Ocelot.UnitTests.Requester
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this.Given(x => GivenTheFollowingRequest(reRoute))
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.And(x => GivenTheQosProviderHouseReturns(new OkResponse<IQoSProvider>(It.IsAny<PollyQoSProvider>())))
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.And(x => GivenTheServiceProviderReturns<FakeDelegatingHandler, FakeDelegatingHandlerTwo>())
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.And(x => GivenTheServiceProviderReturnsGlobalDelegatingHandlers<FakeDelegatingHandler, FakeDelegatingHandlerTwo>())
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.When(x => WhenIGet())
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.Then(x => ThenThereIsDelegatesInProvider(3))
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.And(x => ThenTheDelegatesAreAddedCorrectly())
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@ -91,30 +252,58 @@ namespace Ocelot.UnitTests.Requester
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.BDDfy();
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}
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private void GivenTheServiceProviderReturns<TOne, TTwo>()
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private void ThenHandlerAtPositionIs<T>(int pos)
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where T : DelegatingHandler
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{
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var delegates = _result.Data;
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var del = delegates[pos].Invoke();
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del.ShouldBeOfType<T>();
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}
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private void GivenTheTracingFactoryReturns()
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{
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_tracingFactory
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.Setup(x => x.Get())
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.Returns(new FakeTracingHandler());
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}
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private void GivenTheServiceProviderReturnsGlobalDelegatingHandlers<TOne, TTwo>()
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where TOne : DelegatingHandler
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where TTwo : DelegatingHandler
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{
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IServiceCollection services = new ServiceCollection();
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services.AddSingleton<DelegatingHandler, TOne>();
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services.AddSingleton<DelegatingHandler, TTwo>();
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_serviceProvider = services.BuildServiceProvider();
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_services.AddTransient<TOne>();
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_services.AddTransient<GlobalDelegatingHandler>(s => {
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var service = s.GetService<TOne>();
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return new GlobalDelegatingHandler(service);
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});
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_services.AddTransient<TTwo>();
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_services.AddTransient<GlobalDelegatingHandler>(s => {
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var service = s.GetService<TTwo>();
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return new GlobalDelegatingHandler(service);
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});
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}
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private void GivenTheServiceProviderReturnsNothing()
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private void GivenTheServiceProviderReturnsSpecificDelegatingHandlers<TOne, TTwo>()
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where TOne : DelegatingHandler
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where TTwo : DelegatingHandler
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{
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IServiceCollection services = new ServiceCollection();
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_serviceProvider = services.BuildServiceProvider();
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_services.AddTransient<DelegatingHandler, TOne>();
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_services.AddTransient<DelegatingHandler, TTwo>();
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}
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private void GivenTheServiceProviderReturnsNothing()
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{
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_serviceProvider = _services.BuildServiceProvider();
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}
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private void ThenAnErrorIsReturned()
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{
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_provider.IsError.ShouldBeTrue();
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_result.IsError.ShouldBeTrue();
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}
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private void ThenTheDelegatesAreAddedCorrectly()
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{
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var delegates = _provider.Data;
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var delegates = _result.Data;
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var del = delegates[0].Invoke();
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var handler = (FakeDelegatingHandler) del;
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@ -134,15 +323,15 @@ namespace Ocelot.UnitTests.Requester
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private void ThenItIsPolly(int i)
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{
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var delegates = _provider.Data;
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var delegates = _result.Data;
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var del = delegates[i].Invoke();
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del.ShouldBeOfType<PollyCircuitBreakingDelegatingHandler>();
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}
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private void ThenThereIsDelegatesInProvider(int count)
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{
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_provider.ShouldNotBeNull();
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_provider.Data.Count.ShouldBe(count);
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_result.ShouldNotBeNull();
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_result.Data.Count.ShouldBe(count);
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}
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private void GivenTheFollowingRequest(DownstreamReRoute request)
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@ -152,14 +341,19 @@ namespace Ocelot.UnitTests.Requester
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private void WhenIGet()
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{
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_serviceProvider = _services.BuildServiceProvider();
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_factory = new DelegatingHandlerHandlerFactory(_loggerFactory.Object, _tracingFactory.Object, _qosProviderHouse.Object, _serviceProvider);
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_provider = _factory.Get(_request);
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_result = _factory.Get(_request);
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}
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private void ThenNoDelegatesAreInTheProvider()
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{
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_provider.ShouldNotBeNull();
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_provider.Data.Count.ShouldBe(0);
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_result.ShouldNotBeNull();
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_result.Data.Count.ShouldBe(0);
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}
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}
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internal class FakeTracingHandler : DelegatingHandler, ITracingHandler
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{
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}
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}
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