Tests fail in non-interactive terminals

[sbraz]

Hi,
some tests currently fail when ran in a non-interactive terminal which makes automated testing difficult.
I'm not sure this is expected since most of your tests use a fake Terminal on purpose, so I'm assuming the ones that don't should work even in a non-interactive term.

Can you fix it or is this something we should work around?

Here is the error:

running test
running egg_info
writing blessings.egg-info/PKG-INFO
writing top-level names to blessings.egg-info/top_level.txt
writing dependency_links to blessings.egg-info/dependency_links.txt
reading manifest file 'blessings.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'blessings.egg-info/SOURCES.txt'
running build_ext
blessings.tests.test_capability
Check that a capability lookup works. ... ERROR
blessings.tests.test_capability_without_tty
Assert capability templates are '' when stream is not a tty. ... ok
blessings.tests.test_capability_with_forced_tty
If we force styling, capabilities had better not (generally) be ... ok
blessings.tests.test_parametrization
Test parametrizing a capability. ... FAIL
blessings.tests.test_height_and_width
Assert that ``height_and_width()`` returns ints. ... FAIL
blessings.tests.test_stream_attr
Make sure Terminal exposes a ``stream`` attribute that defaults to ... ok
blessings.tests.test_location
Make sure ``location()`` does what it claims. ... ok
blessings.tests.test_horizontal_location
Make sure we can move the cursor horizontally without changing rows. ... ok
blessings.tests.test_null_location
Make sure ``location()`` with no args just does position restoration. ... ok
blessings.tests.test_zero_location
Make sure ``location()`` pays attention to 0-valued args. ... ok
blessings.tests.test_null_fileno
Make sure ``Terminal`` works when ``fileno`` is ``None``. ... ok
blessings.tests.test_mnemonic_colors
Make sure color shortcuts work. ... FAIL
blessings.tests.test_callable_numeric_colors
``color(n)`` should return a formatting wrapper. ... ok
blessings.tests.test_null_callable_numeric_colors
``color(n)`` should be a no-op on null terminals. ... ok
blessings.tests.test_naked_color_cap
``term.color`` should return a stringlike capability. ... ok
blessings.tests.test_number_of_colors_without_tty
``number_of_colors`` should return 0 when there's no tty. ... SKIP
blessings.tests.test_number_of_colors_with_tty
``number_of_colors`` should work. ... ok
blessings.tests.test_formatting_functions
Test crazy-ass formatting wrappers, both simple and compound. ... ok
blessings.tests.test_formatting_functions_without_tty
Test crazy-ass formatting wrappers when there's no tty. ... ok
blessings.tests.test_nice_formatting_errors
Make sure you get nice hints if you misspell a formatting wrapper. ... ok
blessings.tests.test_init_descriptor_always_initted
We should be able to get a height and width even on no-tty Terminals. ... FAIL
blessings.tests.test_force_styling_none
If ``force_styling=None`` is passed to the constructor, don't ever do ... ok
blessings.tests.test_null_callable_string
Make sure NullCallableString tolerates all numbers and kinds of args it ... ok

======================================================================
ERROR: blessings.tests.test_capability
Check that a capability lookup works.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File "/home/jo/compil/blessings-1.6/blessings/tests.py", line 47, in test_capability
    sc = unicode_cap('sc')
  File "/home/jo/compil/blessings-1.6/blessings/tests.py", line 31, in unicode_cap
    return tigetstr(cap).decode('latin1')
error: must call (at least) setupterm() first

======================================================================
FAIL: blessings.tests.test_parametrization
Test parametrizing a capability.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File "/home/jo/compil/blessings-1.6/blessings/tests.py", line 68, in test_parametrization
    eq_(TestTerminal().cup(3, 4), unicode_parm('cup', 3, 4))
AssertionError: u'' != u'\x1b[4;5H'

======================================================================
FAIL: blessings.tests.test_height_and_width
Assert that ``height_and_width()`` returns ints.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File "/home/jo/compil/blessings-1.6/blessings/tests.py", line 74, in test_height_and_width
    assert isinstance(t.height, int)
AssertionError

======================================================================
FAIL: blessings.tests.test_mnemonic_colors
Make sure color shortcuts work.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File "/home/jo/compil/blessings-1.6/blessings/tests.py", line 149, in test_mnemonic_colors
    eq_(t.white, color(7))
AssertionError: u'' != u'\x1b[37m'

======================================================================
FAIL: blessings.tests.test_init_descriptor_always_initted
We should be able to get a height and width even on no-tty Terminals.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File "/home/jo/compil/blessings-1.6/blessings/tests.py", line 254, in test_init_descriptor_always_initted
    eq_(type(t.height), int)
AssertionError: <type 'NoneType'> != <type 'int'>

----------------------------------------------------------------------
Ran 23 tests in 0.009s

FAILED (failures=4, errors=1, skipped=1)

[jquast]

same as #25

[sbraz]

Hi @jquast, sorry about the duplicate bug. Do you think it's possible to merge this branch into master and make a new release?