public void Constructor_NullEventBus_ThrowsArgumentNullException()
{
try
{
CreateScenarioCommandHandler handler = new CreateScenarioCommandHandler(this._repositoryMock.Object, null);
}
catch (ArgumentNullException ex)
{
Assert.AreEqual("eventBus", ex.ParamName);
throw;
}
}
public void Handle_NullCommand_ThrowsArgumentNullException()
{
CreateScenarioCommandHandler handler = this.CreateHandler();
try
{
handler.Handle(null).Wait();
}
catch (AggregateException ex)
{
ArgumentNullException exception = (ArgumentNullException)ex.InnerException;
Assert.AreEqual("command", exception.ParamName);
throw exception;
}
}
public void Handle_ValidCommand_AddsScenarioWithCorrectNameToRepository()
{
Procedure procedure = new Procedure("Test Procedure");
CreateScenarioCommand command = new CreateScenarioCommand {
Name = "Test", ProcedureId = procedure.Id
};
this._repositoryMock
.Setup(r => r.Get(command.ProcedureId))
.Returns(Task.FromResult(procedure));
this._repositoryMock
.Setup(r => r.Update(procedure))
.Returns(Task.CompletedTask);
CreateScenarioCommandHandler handler = this.CreateHandler();
handler.Handle(command).Wait();
this._repositoryMock.Verify(r => r.Update(It.Is <Procedure>(p => p.Scenarios.Any(s => s.Name == command.Name))), Times.Once());
}
public void Handle_ValidCommand_PublishesEventWithCorrectData()
{
Procedure procedure = new Procedure("Test Procedure");
CreateScenarioCommand command = new CreateScenarioCommand {
Name = "Test", ProcedureId = procedure.Id
};
this._repositoryMock
.Setup(r => r.Get(command.ProcedureId))
.Returns(Task.FromResult(procedure));
this._repositoryMock
.Setup(r => r.Update(It.IsAny <Procedure>()))
.Returns(Task.CompletedTask);
CreateScenarioCommandHandler handler = this.CreateHandler();
Scenario scenario = handler.Handle(command).Result;
this._eventBusMock.Verify(b => b.Publish(It.Is <ScenarioCreatedEvent>(e => e.ProcedureId == procedure.Id && e.Name == command.Name && e.ScenarioId == scenario.Id)));
}
public void Handle_ValidCommand_ReturnsSavedScenario()
{
Procedure procedure = new Procedure("Test Procedure");
Scenario scenario = null;
CreateScenarioCommand command = new CreateScenarioCommand {
Name = "Test", ProcedureId = procedure.Id
};
this._repositoryMock
.Setup(r => r.Get(command.ProcedureId))
.Returns(Task.FromResult(procedure));
this._repositoryMock
.Setup(r => r.Update(It.IsAny <Procedure>()))
.Returns(Task.CompletedTask)
.Callback <Procedure>(p =>
{
scenario = p.Scenarios.First();
});
CreateScenarioCommandHandler handler = this.CreateHandler();
Scenario result = handler.Handle(command).Result;
Assert.AreEqual(scenario, result);
}
