public void RemoveConverterRemovesExistingConverter()
{
var target = new CustomConverterFactory();
Func<object, object> converter = x => null;
target.RegisterConverter(typeof(CustomConverterFactoryTests), converter);
var result1 = target.RemoveConverter(typeof (CustomConverterFactoryTests));
var result2 = target.GetConverter(typeof(CustomConverterFactoryTests));
Assert.IsNotNull(result1);
Assert.AreSame(converter, result1);
Assert.IsNull(result2);
}
public void RemoveConverterThrowsArgumentNullExceptionIfTheTypeIsNull()
{
var target = new CustomConverterFactory();
var exception = Assert.Catch<ArgumentNullException>(() => target.RemoveConverter(null));
Assert.AreEqual("type", exception.ParamName);
}
public void RemoveConverterRetunrsNullForNonRegisteredConverter()
{
var target = new CustomConverterFactory();
var result = target.RemoveConverter(typeof(CustomConverterFactoryTests));
Assert.IsNull(result);
}
public void EnumConverterThrowsInvalidCastExceptionWhenCannotFindConverterForUnderlyingType()
{
var target = new CustomConverterFactory();
target.RemoveConverter(typeof(int)); // it's the underlying type for the HelloWorld enum
var converter = target.GetConverter(typeof(HelloWorld));
Assert.Catch<InvalidCastException>(() => converter(2));
}