Yelp/mrjob — pull request #552 by davidmarin (2012-08-27 23:36:30+00:00)
Title: Fix HadoopJobRunner.path_exists() (Issue #549)

`HadoopJobRunner.path_exists()` was returning `False` when it should have returned `True` and vice versa (see Issue #549). This fixes the problem and adds appropriate tests.

This behavior is already fixed in `master` (v0.4.x) but there is no test for it (our filesystem tests are spotty in general; see #550). Probably would make sense to copy the test to `tests/fs/test_hadoop.py` when merging back into `master`.