def test_display_parse(monkeypatch, dispvar):
"""Check that when $DISPLAY is defined, the display is correctly parsed"""
config._display = None
config._config.remove_option('execution', 'display_variable')
monkeypatch.setenv('DISPLAY', dispvar)
assert config.get_display() == ':12'
# Test that it was correctly cached
assert config.get_display() == ':12'
def test_display_parse(monkeypatch, dispvar):
"""Check that when $DISPLAY is defined, the display is correctly parsed"""
config._display = None
config._config.remove_option("execution", "display_variable")
monkeypatch.setenv("DISPLAY", dispvar)
assert config.get_display() == ":12"
# Test that it was correctly cached
assert config.get_display() == ":12"
def test_display_system(monkeypatch, dispnum):
"""Check that when only a $DISPLAY is defined, it is used"""
config._display = None
config._config.remove_option('execution', 'display_variable')
dispstr = ':%d' % dispnum
monkeypatch.setenv('DISPLAY', dispstr)
assert config.get_display() == dispstr
# Test that it was correctly cached
assert config.get_display() == dispstr
def test_display_config(monkeypatch, dispnum):
"""Check that the display_variable option is used ($DISPLAY not set)"""
config._display = None
dispstr = ':%d' % dispnum
config.set('execution', 'display_variable', dispstr)
monkeypatch.delitem(os.environ, 'DISPLAY', raising=False)
assert config.get_display() == config.get('execution', 'display_variable')
# Test that it was correctly cached
assert config.get_display() == config.get('execution', 'display_variable')
def test_display_config_and_system(monkeypatch):
"""Check that when only both config and $DISPLAY are defined, the config takes precedence"""
config._display = None
dispstr = ':10'
config.set('execution', 'display_variable', dispstr)
monkeypatch.setitem(os.environ, 'DISPLAY', ':0')
assert config.get_display() == dispstr
# Test that it was correctly cached
assert config.get_display() == dispstr
def test_display_config_and_system(monkeypatch):
"""Check that when only both config and $DISPLAY are defined, the config
takes precedence"""
config._display = None
dispstr = ":10"
config.set("execution", "display_variable", dispstr)
monkeypatch.setenv("DISPLAY", ":0")
assert config.get_display() == dispstr
# Test that it was correctly cached
assert config.get_display() == dispstr
def test_display_noconfig_nosystem_patched(monkeypatch):
"""Check that when no $DISPLAY nor option are specified, a virtual Xvfb is used"""
config._display = None
if config.has_option('execution', 'display_variable'):
config._config.remove_option('execution', 'display_variable')
monkeypatch.delitem(os.environ, 'DISPLAY', raising=False)
monkeypatch.setitem(sys.modules, 'xvfbwrapper', xvfbpatch)
assert config.get_display() == ":2010"
# Test that it was correctly cached
assert config.get_display() == ':2010'
def test_display_empty_notinstalled(monkeypatch):
"""
Check that an exception is raised if xvfbwrapper is not installed
but necessary (no config and $DISPLAY empty)
"""
config._display = None
if config.has_option('execution', 'display_variable'):
config._config.remove_option('execution', 'display_variable')
monkeypatch.setenv('DISPLAY', '')
monkeypatch.setitem(sys.modules, 'xvfbwrapper', None)
with pytest.raises(RuntimeError):
config.get_display()
def test_display_noconfig_nosystem_notinstalled(monkeypatch):
"""
Check that an exception is raised if xvfbwrapper is not installed
but necessary (no config and $DISPLAY unset)
"""
config._display = None
if config.has_option("execution", "display_variable"):
config._config.remove_option("execution", "display_variable")
monkeypatch.delenv("DISPLAY", raising=False)
monkeypatch.setitem(sys.modules, "xvfbwrapper", None)
with pytest.raises(RuntimeError):
config.get_display()
def test_display_empty_installed(monkeypatch):
"""
Check that actually uses xvfbwrapper when installed (not mocked)
and necessary (no config and $DISPLAY empty)
"""
config._display = None
if config.has_option('execution', 'display_variable'):
config._config.remove_option('execution', 'display_variable')
monkeypatch.setenv('DISPLAY', '')
newdisp = config.get_display()
assert int(newdisp.split(':')[-1]) > 1000
# Test that it was correctly cached
assert config.get_display() == newdisp
def test_display_noconfig_nosystem_installed(monkeypatch):
"""
Check that actually uses xvfbwrapper when installed (not mocked)
and necessary (no config and $DISPLAY unset)
"""
config._display = None
if config.has_option("execution", "display_variable"):
config._config.remove_option("execution", "display_variable")
monkeypatch.delenv("DISPLAY", raising=False)
newdisp = config.get_display()
assert int(newdisp.split(":")[-1]) > 1000
# Test that it was correctly cached
assert config.get_display() == newdisp
def test_display_empty_patched(monkeypatch):
"""
Check that when $DISPLAY is empty string and no option is specified,
a virtual Xvfb is used
"""
config._display = None
if config.has_option('execution', 'display_variable'):
config._config.remove_option('execution', 'display_variable')
monkeypatch.setitem(os.environ, 'DISPLAY', '')
monkeypatch.setitem(sys.modules, 'xvfbwrapper', xvfbpatch)
assert config.get_display() == ':2010'
# Test that it was correctly cached
assert config.get_display() == ':2010'
def test_display_noconfig_nosystem_installed(monkeypatch):
"""
Check that actually uses xvfbwrapper when installed (not mocked)
and necessary (no config and $DISPLAY unset)
"""
config._display = None
if config.has_option('execution', 'display_variable'):
config._config.remove_option('execution', 'display_variable')
monkeypatch.delitem(os.environ, 'DISPLAY', raising=False)
newdisp = config.get_display()
assert int(newdisp.split(':')[-1]) > 1000
# Test that it was correctly cached
assert config.get_display() == newdisp
def test_display_empty_macosx(monkeypatch):
"""
Check that an exception is raised if xvfbwrapper is necessary
(no config and $DISPLAY unset) but platform is OSX. See
https://github.com/nipy/nipype/issues/1400
"""
config._display = None
if config.has_option('execution', 'display_variable'):
config._config.remove_option('execution', 'display_variable')
monkeypatch.delenv('DISPLAY', '')
monkeypatch.setattr(sys, 'platform', 'darwin')
with pytest.raises(RuntimeError):
config.get_display()
def test_display_noconfig_nosystem_patched(monkeypatch):
"""Check that when no $DISPLAY nor option are specified, a virtual Xvfb is
used"""
config._display = None
if config.has_option("execution", "display_variable"):
config._config.remove_option("execution", "display_variable")
monkeypatch.delitem(os.environ, "DISPLAY", raising=False)
monkeypatch.setitem(sys.modules, "xvfbwrapper", xvfbpatch)
monkeypatch.setattr(sys, "platform", value="linux")
assert config.get_display() == ":2010"
# Test that it was correctly cached
assert config.get_display() == ":2010"
# Check that raises in Mac
config._display = None
monkeypatch.setattr(sys, "platform", value="darwin")
with pytest.raises(RuntimeError):
config.get_display()
def test_display_noconfig_nosystem_patched(monkeypatch):
"""Check that when no $DISPLAY nor option are specified, a virtual Xvfb is
used"""
config._display = None
if config.has_option('execution', 'display_variable'):
config._config.remove_option('execution', 'display_variable')
monkeypatch.delitem(os.environ, 'DISPLAY', raising=False)
monkeypatch.setitem(sys.modules, 'xvfbwrapper', xvfbpatch)
monkeypatch.setattr(sys, 'platform', value='linux')
assert config.get_display() == ":2010"
# Test that it was correctly cached
assert config.get_display() == ':2010'
# Check that raises in Mac
config._display = None
monkeypatch.setattr(sys, 'platform', value='darwin')
with pytest.raises(RuntimeError):
config.get_display()
def test_display_empty_patched(monkeypatch):
"""
Check that when $DISPLAY is empty string and no option is specified,
a virtual Xvfb is used
"""
config._display = None
if config.has_option('execution', 'display_variable'):
config._config.remove_option('execution', 'display_variable')
monkeypatch.setenv('DISPLAY', '')
monkeypatch.setitem(sys.modules, 'xvfbwrapper', xvfbpatch)
monkeypatch.setattr(sys, 'platform', value='linux')
assert config.get_display() == ':2010'
# Test that it was correctly cached
assert config.get_display() == ':2010'
# Check that raises in Mac
config._display = None
monkeypatch.setattr(sys, 'platform', value='darwin')
with pytest.raises(RuntimeError):
config.get_display()
def test_display_empty_patched(monkeypatch):
"""
Check that when $DISPLAY is empty string and no option is specified,
a virtual Xvfb is used
"""
config._display = None
if config.has_option("execution", "display_variable"):
config._config.remove_option("execution", "display_variable")
monkeypatch.setenv("DISPLAY", "")
monkeypatch.setitem(sys.modules, "xvfbwrapper", xvfbpatch)
monkeypatch.setattr(sys, "platform", value="linux")
assert config.get_display() == ":2010"
# Test that it was correctly cached
assert config.get_display() == ":2010"
# Check that raises in Mac
config._display = None
monkeypatch.setattr(sys, "platform", value="darwin")
with pytest.raises(RuntimeError):
config.get_display()
