public void Should_WordServiceFactory_Throw_KeyNotFoundException_When_Invalid_ServiceType()
{
var factory = new WordServiceFactory();
Assert.Throws <KeyNotFoundException>(() => factory.GetNumberWordService(""));
Assert.Throws <KeyNotFoundException>(() => factory.GetNumberWordService("TestFeed"));
}
public void Should_WordServiceFactory_Throw_ArgumentNullException_When_Null_ServiceType()
{
var factory = new WordServiceFactory();
Assert.Throws <ArgumentNullException>(() => factory.GetNumberWordService(null));
}