tests: skip tests that require not having root (issue4089) This adds a new root hghave to test against. Almost all of these are a subset of unix-permissions, but that is also used for checking exec bit handling. [ original upstream message ]

Merge with stable

hghave: add "py3k" feature to check whether test runs with Python 3.x This patch adds "py3k" feature to check whether test runs with Python 3.x. This check is needed for portability of test code: for example, in the default, modules are imported relatively first with python 2.x, but imported absolutely with Python 3.x. [ original upstream message ]