public void ScientistDisablesExperiment()
{
const int expectedResult = 42;
var mock = Substitute.For <IControlCandidate <int> >();
mock.Control().Returns(expectedResult);
mock.Candidate().Returns(0);
var settings = Substitute.For <IScientistSettings>();
settings.Enabled().Returns(Task.FromResult(false));
using (Swap.Enabled(settings.Enabled))
{
var result = Scientist.Science <int>(nameof(ScientistDisablesExperiment), experiment =>
{
experiment.Use(mock.Control);
experiment.Try(mock.Candidate);
});
Assert.Equal(expectedResult, result);
mock.DidNotReceive().Candidate();
mock.Received().Control();
settings.Received().Enabled();
}
}
public void EnabledOperation()
{
var settings = Substitute.For <IScientistSettings>();
var ex = new Exception();
settings.Enabled().Throws(ex);
using (Swap.Enabled(settings.Enabled))
{
const int expectedResult = 42;
var mock = Substitute.For <IControlCandidate <int> >();
mock.Control().Returns(expectedResult);
mock.Candidate().Returns(0);
var result = Scientist.Science <int>(nameof(EnabledOperation), experiment =>
{
experiment.Thrown(mock.Thrown);
experiment.Use(mock.Control);
experiment.Try(mock.Candidate);
});
Assert.Equal(expectedResult, result);
mock.Received().Thrown(Operation.Enabled, ex);
}
}
public void NoCandidateMeansNoDisable()
{
var settings = Substitute.For <IScientistSettings>();
settings.Enabled().Returns(Task.FromResult(false));
using (Swap.Enabled(settings.Enabled))
{
Scientist.Science <int>("noCandidateNoDisable", experiment =>
{
experiment.Use(() => 42);
});
settings.DidNotReceive().Enabled();
}
}
public void ScientistDisablesAllExperiments()
{
const int expectedResult = 42;
var mock = Substitute.For <IControlCandidate <int> >();
mock.Control().Returns(expectedResult);
mock.Candidate().Returns(0);
var settings = Substitute.For <IScientistSettings>();
settings.Enabled().Returns(Task.FromResult(false));
var instanceMock = Substitute.For <IControlCandidate <int> >();
instanceMock.Control().Returns(expectedResult);
instanceMock.Candidate().Returns(0);
using (Swap.Enabled(settings.Enabled))
{
var result = Scientist.Science <int>(nameof(ScientistDisablesExperiment), experiment =>
{
experiment.Use(mock.Control);
experiment.Try(mock.Candidate);
});
mock.DidNotReceive().Candidate();
mock.Received().Control();
settings.Received().Enabled();
var scientist = new Scientist(Substitute.For <IResultPublisher>());
scientist.Experiment <int>(nameof(ScientistDisablesAllExperiments), experiment =>
{
experiment.Use(instanceMock.Control);
experiment.Try(instanceMock.Candidate);
});
instanceMock.DidNotReceive().Candidate();
instanceMock.Received().Control();
settings.Received().Enabled();
}
}