Adding integration tests

[carlosvargas]

This adds some integration tests for the most basic commands by comparing the stdout output after we have parsed it. This is to help prevent changes to formatting, unicode text not displaying, etc.

It uses Betamax to modify reqests so that we can save the request body to a file. It will then use this file in any subsequent calls so that the "response" for a specific endpoint is always the same.

I'm also using click.testing.CliRunner.isolation function (src) so that I can easily get a hold of the stdout output.

[carlosvargas]

Bah, just realized that I could have written:

with self.recorder.use_cassette(cassette_name):
           with self.cli_runner.isolation() as runner:

like

with self.recorder.use_cassette(cassette_name) as cassette, self.cli_runner.isolation() as runner:

if anyone wants to, I could change it to the latter.

[ueg1990]

@carlosvargas for nested context managers...you can use contextlib.nested http://stackoverflow.com/a/3025119/1510751

[carlosvargas]

@ueg1990 contextlib.nested has been deprecated since 2.7 (https://docs.python.org/2/library/contextlib.html#contextlib.nested)

[ueg1990]

ah....didnt know that

[Saturn]

I wrote some unit tests a while ago using https://github.com/patrys/httmock

I manually saved the json data.

Never ended up trying to merge them. I think I had forgot about it...

I will have a look at all these changes when I get time. Looks interesting :+1: