running test
WARNING: Testing via this command is deprecated and will be removed in a future version. Users looking for a generic test entry point independent of test runner are encouraged to use tox.
running egg_info
creating xdot.egg-info
writing xdot.egg-info/PKG-INFO
writing dependency_links to xdot.egg-info/dependency_links.txt
writing entry points to xdot.egg-info/entry_points.txt
writing top-level names to xdot.egg-info/top_level.txt
writing manifest file 'xdot.egg-info/SOURCES.txt'
reading manifest file 'xdot.egg-info/SOURCES.txt'
adding license file 'LICENSE.txt'
writing manifest file 'xdot.egg-info/SOURCES.txt'
running build_ext
xdot (unittest.loader._FailedTest) ... ERROR

======================================================================
ERROR: xdot (unittest.loader._FailedTest)
----------------------------------------------------------------------
ImportError: Failed to import test module: xdot
Traceback (most recent call last):
  File "/usr/lib/python3.10/unittest/loader.py", line 470, in _find_test_path
    package = self._get_module_from_name(name)
  File "/usr/lib/python3.10/unittest/loader.py", line 377, in _get_module_from_name
    __import__(name)
  File "/build/xdot/src/xdot.py-1.2/xdot/__init__.py", line 26, in <module>
    from . import ui
  File "/build/xdot/src/xdot.py-1.2/xdot/ui/__init__.py", line 3, in <module>
    from .window import DotWidget, DotWindow
  File "/build/xdot/src/xdot.py-1.2/xdot/ui/window.py", line 40, in <module>
    from . import actions
  File "/build/xdot/src/xdot.py-1.2/xdot/ui/actions.py", line 21, in <module>
    from xdot.ui.elements import Jump
  File "/build/xdot/src/xdot.py-1.2/xdot/ui/elements.py", line 28, in <module>
    import cairo
ModuleNotFoundError: No module named 'cairo'


----------------------------------------------------------------------
Ran 1 test in 0.001s

FAILED (errors=1)
Test failed: <unittest.runner.TextTestResult run=1 errors=1 failures=0>
error: Test failed: <unittest.runner.TextTestResult run=1 errors=1 failures=0>
==> ERROR: A failure occurred in check().
    Aborting...