public void provide_value_throws_if_format_string_is_null()
{
var converterExtension = new FormatConverterExtension();
var ex = Assert.Throws <InvalidOperationException>(() => converterExtension.ProvideValue(null));
Assert.Equal("No format string has been provided.", ex.Message);
}
public void provide_value_returns_appropriate_format_converter()
{
var converterExtension = new FormatConverterExtension
{
FormatString = "format"
};
var formatConverter = converterExtension.ProvideValue(null) as FormatConverter;
Assert.NotNull(formatConverter);
Assert.Equal("format", formatConverter.FormatString);
}