public void GetHandlerWithConfiguration_IfConfigurationIsNull_Throws()
{
// Arrange
HttpConfiguration configuration = null;
// Act & Assert
Assert.ThrowsArgumentNull(() => ExceptionServices.GetHandler(configuration), "configuration");
}
public void GetHandlerWithServices_IfServicesIsNull_Throws()
{
// Arrange
ServicesContainer services = null;
// Act & Assert
Assert.ThrowsArgumentNull(() => ExceptionServices.GetHandler(services), "services");
}
public void GetHandlerWithServices_ReturnsLastChanceHandlerWithServicesInnerHandler()
{
// Arrange
IExceptionHandler expectedHandler = CreateDummyHandler();
using (ServicesContainer services = CreateServices(expectedHandler))
{
// Act
IExceptionHandler handler = ExceptionServices.GetHandler(services);
// Assert
IExceptionHandler innerHandler = Assert.IsType <LastChanceExceptionHandler>(handler).InnerHandler;
Assert.Same(expectedHandler, innerHandler);
}
}
public void GetHandlerWithConfiguration_ReturnsLastChanceHandlerWithServicesInnerHandler()
{
// Arrange
IExceptionHandler expectedHandler = CreateDummyHandler();
using (HttpConfiguration configuration = CreateConfiguration(expectedHandler))
{
// Act
IExceptionHandler handler = ExceptionServices.GetHandler(configuration);
// Assert
IExceptionHandler innerHandler = Assert.IsType <LastChanceExceptionHandler>(handler).InnerHandler;
Assert.Same(expectedHandler, innerHandler);
}
}
public void GetHandlerWithServices_IfHandlerIsAbsent_ReturnsLastChanceHandlerWithEmptyInnerHandler()
{
// Arrange
IExceptionHandler servicesHandler = null;
using (ServicesContainer services = CreateServices(servicesHandler))
{
// Act
IExceptionHandler handler = ExceptionServices.GetHandler(services);
// Assert
IExceptionHandler innerHandler = Assert.IsType <LastChanceExceptionHandler>(handler).InnerHandler;
Assert.IsType <EmptyExceptionHandler>(innerHandler);
}
}
public void GetHandlerWithServices_ReturnsSameInstance()
{
// Arrange
IExceptionHandler innerHandler = CreateDummyHandler();
using (ServicesContainer services = CreateServices(innerHandler))
{
IExceptionHandler firstHandler = ExceptionServices.GetHandler(services);
// Act
IExceptionHandler secondHandler = ExceptionServices.GetHandler(services);
// Assert
Assert.Same(firstHandler, secondHandler);
}
}
