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test should be at least once

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Tom Gardham-Pallister 2018-05-06 18:43:24 +01:00
parent 5ed8257a58
commit a2c7fda4c9
1 changed files with 174 additions and 158 deletions
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test/Ocelot.UnitTests/Configuration/ConsulFileConfigurationPollerTests.cs
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@ -1,158 +1,174 @@
using System;
using System.Collections.Generic;
using System.Threading;
using Moq;
using Ocelot.Configuration.File;
using Ocelot.Configuration.Repository;
using Ocelot.Configuration.Setter;
using Ocelot.Logging;
using Ocelot.Responses;
using Ocelot.UnitTests.Responder;
using TestStack.BDDfy;
using Xunit;
using Shouldly;
using static Ocelot.Infrastructure.Wait;
namespace Ocelot.UnitTests.Configuration
{
public class ConsulFileConfigurationPollerTests : IDisposable
{
private ConsulFileConfigurationPoller _poller;
private Mock<IOcelotLoggerFactory> _factory;
private Mock<IFileConfigurationRepository> _repo;
private Mock<IFileConfigurationSetter> _setter;
private FileConfiguration _fileConfig;
private Mock<IConsulPollerConfiguration> _config;
public ConsulFileConfigurationPollerTests()
{
var logger = new Mock<IOcelotLogger>();
_factory = new Mock<IOcelotLoggerFactory>();
_factory.Setup(x => x.CreateLogger<ConsulFileConfigurationPoller>()).Returns(logger.Object);
_repo = new Mock<IFileConfigurationRepository>();
_setter = new Mock<IFileConfigurationSetter>();
_fileConfig = new FileConfiguration();
_config = new Mock<IConsulPollerConfiguration>();
_repo.Setup(x => x.Get()).ReturnsAsync(new OkResponse<FileConfiguration>(_fileConfig));
_config.Setup(x => x.Delay).Returns(100);
_poller = new ConsulFileConfigurationPoller(_factory.Object, _repo.Object, _setter.Object, _config.Object);
}
public void Dispose()
{
_poller.Dispose();
}
[Fact]
public void should_start()
{
this.Given(x => ThenTheSetterIsCalled(_fileConfig, 1))
.BDDfy();
}
[Fact]
public void should_call_setter_when_gets_new_config()
{
var newConfig = new FileConfiguration {
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "test"
}
},
}
}
};
this.Given(x => WhenTheConfigIsChangedInConsul(newConfig, 0))
.Then(x => ThenTheSetterIsCalled(newConfig, 1))
.BDDfy();
}
[Fact]
public void should_not_poll_if_already_polling()
{
var newConfig = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "test"
}
},
}
}
};
this.Given(x => WhenTheConfigIsChangedInConsul(newConfig, 10))
.Then(x => ThenTheSetterIsCalled(newConfig, 1))
.BDDfy();
}
[Fact]
public void should_do_nothing_if_call_to_consul_fails()
{
var newConfig = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "test"
}
},
}
}
};
this.Given(x => WhenConsulErrors())
.Then(x => ThenTheSetterIsCalled(newConfig, 0))
.BDDfy();
}
private void WhenConsulErrors()
{
_repo
.Setup(x => x.Get())
.ReturnsAsync(new ErrorResponse<FileConfiguration>(new AnyError()));
}
private void WhenTheConfigIsChangedInConsul(FileConfiguration newConfig, int delay)
{
_repo
.Setup(x => x.Get())
.Callback(() => Thread.Sleep(delay))
.ReturnsAsync(new OkResponse<FileConfiguration>(newConfig));
}
private void ThenTheSetterIsCalled(FileConfiguration fileConfig, int times)
{
var result = WaitFor(2000).Until(() => {
try
{
_setter.Verify(x => x.Set(fileConfig), Times.Exactly(times));
return true;
}
catch(Exception)
{
return false;
}
});
result.ShouldBeTrue();
}
}
}
using System;
using System.Collections.Generic;
using System.Threading;
using Moq;
using Ocelot.Configuration.File;
using Ocelot.Configuration.Repository;
using Ocelot.Configuration.Setter;
using Ocelot.Logging;
using Ocelot.Responses;
using Ocelot.UnitTests.Responder;
using TestStack.BDDfy;
using Xunit;
using Shouldly;
using static Ocelot.Infrastructure.Wait;
namespace Ocelot.UnitTests.Configuration
{
public class ConsulFileConfigurationPollerTests : IDisposable
{
private ConsulFileConfigurationPoller _poller;
private Mock<IOcelotLoggerFactory> _factory;
private Mock<IFileConfigurationRepository> _repo;
private Mock<IFileConfigurationSetter> _setter;
private FileConfiguration _fileConfig;
private Mock<IConsulPollerConfiguration> _config;
public ConsulFileConfigurationPollerTests()
{
var logger = new Mock<IOcelotLogger>();
_factory = new Mock<IOcelotLoggerFactory>();
_factory.Setup(x => x.CreateLogger<ConsulFileConfigurationPoller>()).Returns(logger.Object);
_repo = new Mock<IFileConfigurationRepository>();
_setter = new Mock<IFileConfigurationSetter>();
_fileConfig = new FileConfiguration();
_config = new Mock<IConsulPollerConfiguration>();
_repo.Setup(x => x.Get()).ReturnsAsync(new OkResponse<FileConfiguration>(_fileConfig));
_config.Setup(x => x.Delay).Returns(100);
_poller = new ConsulFileConfigurationPoller(_factory.Object, _repo.Object, _setter.Object, _config.Object);
}
public void Dispose()
{
_poller.Dispose();
}
[Fact]
public void should_start()
{
this.Given(x => ThenTheSetterIsCalled(_fileConfig, 1))
.BDDfy();
}
[Fact]
public void should_call_setter_when_gets_new_config()
{
var newConfig = new FileConfiguration {
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "test"
}
},
}
}
};
this.Given(x => WhenTheConfigIsChangedInConsul(newConfig, 0))
.Then(x => ThenTheSetterIsCalledAtLeast(newConfig, 1))
.BDDfy();
}
[Fact]
public void should_not_poll_if_already_polling()
{
var newConfig = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "test"
}
},
}
}
};
this.Given(x => WhenTheConfigIsChangedInConsul(newConfig, 10))
.Then(x => ThenTheSetterIsCalled(newConfig, 1))
.BDDfy();
}
[Fact]
public void should_do_nothing_if_call_to_consul_fails()
{
var newConfig = new FileConfiguration
{
ReRoutes = new List<FileReRoute>
{
new FileReRoute
{
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "test"
}
},
}
}
};
this.Given(x => WhenConsulErrors())
.Then(x => ThenTheSetterIsCalled(newConfig, 0))
.BDDfy();
}
private void WhenConsulErrors()
{
_repo
.Setup(x => x.Get())
.ReturnsAsync(new ErrorResponse<FileConfiguration>(new AnyError()));
}
private void WhenTheConfigIsChangedInConsul(FileConfiguration newConfig, int delay)
{
_repo
.Setup(x => x.Get())
.Callback(() => Thread.Sleep(delay))
.ReturnsAsync(new OkResponse<FileConfiguration>(newConfig));
}
private void ThenTheSetterIsCalled(FileConfiguration fileConfig, int times)
{
var result = WaitFor(2000).Until(() => {
try
{
_setter.Verify(x => x.Set(fileConfig), Times.Exactly(times));
return true;
}
catch(Exception)
{
return false;
}
});
result.ShouldBeTrue();
}
private void ThenTheSetterIsCalledAtLeast(FileConfiguration fileConfig, int times)
{
var result = WaitFor(2000).Until(() => {
try
{
_setter.Verify(x => x.Set(fileConfig), Times.AtLeast(times));
return true;
}
catch(Exception)
{
return false;
}
});
result.ShouldBeTrue();
}
}
}