A big part of what I'm recommending in this article is clarifying your ideas, and unit tests are definitely a good way of doing that. Defining what your code is supposed to input and output is a big part of working out how you're going to approach it.
Taking on a programming language is one hell of a challenge :) One of my professors at university was working on the whiley language, and he maintains a blog about some of the issues he hit. It might be of interest to you.
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Interesting idea to write unit tests.
A big part of what I'm recommending in this article is clarifying your ideas, and unit tests are definitely a good way of doing that. Defining what your code is supposed to input and output is a big part of working out how you're going to approach it.
Taking on a programming language is one hell of a challenge :) One of my professors at university was working on the whiley language, and he maintains a blog about some of the issues he hit. It might be of interest to you.