pudo/dataset — pull request #110 by xrotwang (2014-11-06 13:19:08+00:00)
Title: extended test coverage for the freeze package, thereby fixing some bugs.

Test coverage for the ``freeze`` package is now at almost 100%:

```
Name Stmts Miss Cover Missing
-------------------------------------------------------------
dataset 14 1 93% 31
dataset.freeze 0 0 100%
dataset.freeze.app 38 0 100%
dataset.freeze.config 59 0 100%
dataset.freeze.format 7 0 100%
dataset.freeze.format.common 67 2 97% 65, 68
dataset.freeze.format.fcsv 32 0 100%
dataset.freeze.format.fjson 34 2 94% 13-14
dataset.freeze.format.ftabson 16 0 100%
```

To achieve this, I refactored ``dataset.freeze.app`` a bit to allow for easier testing. While adding tests, I also discovered and fixed 2 bugs: One in https://github.com/xrotwang/dataset/compare/pudo:master...master#diff-25291c729a57feadd7aef29fadad4409R31
and another one in https://github.com/xrotwang/dataset/compare/pudo:master...master#diff-cadd8af6b58b3ac0494858d0ffa0220aL105

The changes outside the ``freeze`` package and tests are restricted to adding ``pragma: no cover`` comments to tune coverage reports and taking advantage of the ``six`` package to make portability across python 2+3 easier.