spatchcock/quantify — pull request #21 by cblock (2012-10-31 20:56:04+00:00)
Title: Quantity#initialize should fail fast on invalid input

Silencing value or unit errors is not the best solution. Better let users of the API deal with the errors. For the [quantify_mongoid](https://github.com/cblock/quantify_mongoid) gem I need these errors to be raised so that I can establish proper ActiveModel Validation errors for the invalid form field inputs.