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from time import sleep
import pytest
from tutil import has_xvnc, rfbport
from pyvirtualdisplay import Display
from pyvirtualdisplay.abstractdisplay import XStartError
from pyvirtualdisplay.xephyr import XephyrDisplay
from pyvirtualdisplay.xvfb import XvfbDisplay
from pyvirtualdisplay.xvnc import XvncDisplay
def test_virt():
vd = Display()
# assert vd.return_code is None
assert not vd.is_alive()
vd.start()
# assert vd.return_code is None
assert vd.is_alive()
vd.stop()
# assert vd.return_code == 0
assert not vd.is_alive()
vd = Display().start().stop()
# assert vd.return_code == 0
assert not vd.is_alive()
def test_nest():
vd = Display().start()
assert vd.is_alive()
nd = Display(visible=True).start().stop()
# assert nd.return_code == 0
assert not nd.is_alive()
vd.stop()
assert not vd.is_alive()
def test_disp():
vd = Display().start()
assert vd.is_alive()
# d = Display(visible=True).start().sleep(2).stop()
# .assertEquals(d.return_code, 0)
d = Display(visible=False).start().stop()
# assert d.return_code == 0
assert not d.is_alive()
vd.stop()
assert not vd.is_alive()
def test_repr_xvfb():
display = Display()
print(repr(display))
display = Display(visible=False)
print(repr(display))
display = Display(backend="xvfb")
print(repr(display))
display = XvfbDisplay()
print(repr(display))
if has_xvnc():
def test_repr_xvnc():
display = Display(backend="xvnc", rfbport=rfbport())
print(repr(display))
display = XvncDisplay()
print(repr(display))
def test_repr_xephyr():
display = Display(visible=True)
print(repr(display))
display = Display(backend="xephyr")
print(repr(display))
display = XephyrDisplay()
print(repr(display))
def test_stop_nostart():
with pytest.raises(XStartError):
Display().stop()
def test_double_start():
vd = Display()
try:
vd.start()
with pytest.raises(XStartError):
vd.start()
finally:
vd.stop()
def test_double_stop():
vd = Display().start().stop()
# assert vd.return_code == 0
assert not vd.is_alive()
vd.stop()
# assert vd.return_code == 0
assert not vd.is_alive()
def test_stop_terminated():
vd = Display().start()
assert vd.is_alive()
vd._obj._subproc.kill()
sleep(1)
assert not vd.is_alive()
vd.stop()
# assert vd.return_code == 0
assert not vd.is_alive()
def test_no_backend():
with pytest.raises(ValueError):
Display(backend="unknown")
def test_color_xvfb():
with pytest.raises(XStartError):
Display(color_depth=99).start().stop()
Display(color_depth=16).start().stop()
Display(color_depth=24).start().stop()
Display(color_depth=8).start().stop()
def test_color_xephyr():
with Display():
# requested screen depth not supported, setting to match hosts
Display(backend="xephyr", color_depth=99).start().stop()
Display(backend="xephyr", color_depth=16).start().stop()
Display(backend="xephyr", color_depth=24).start().stop()
Display(backend="xephyr", color_depth=8).start().stop()
if has_xvnc():
def test_color_xvnc():
with pytest.raises(XStartError):
with Display(backend="xvnc", color_depth=99, rfbport=rfbport()):
pass
with Display(backend="xvnc", color_depth=16, rfbport=rfbport()):
pass
with Display(backend="xvnc", color_depth=24, rfbport=rfbport()):
pass
# tigervnc no longer works 8-bit pseudocolors, 18.04 is OK
# with Display(backend="xvnc", color_depth=8, rfbport=rfbport()):
# pass
def test_pid():
with Display() as d:
assert d.pid > 0
with XvfbDisplay() as d:
assert d.pid > 0
def test_bgcolor():
Display(bgcolor="black").start().stop()
Display(bgcolor="white").start().stop()
with pytest.raises(KeyError):
Display(bgcolor="green").start().stop()
def test_is_started():
# d = Display()
# assert not d._is_started
# d.start()
# assert d._is_started
# d.stop()
# assert d._is_started
# with Display() as d:
# assert d._is_started
# assert d._is_started
with XvfbDisplay() as d:
assert d._is_started
assert d._is_started
with Display():
with XephyrDisplay() as d:
assert d._is_started
assert d._is_started
# with XvncDisplay() as d:
# assert d._is_started
# assert d._is_started
def test_extra_args():
# Unrecognized option
d = Display(extra_args=["willcrash"])
with pytest.raises(XStartError):
d.start()
with Display():
# -c turns off key-click
with Display(visible=True, extra_args=["-c"]) as d:
assert d.is_alive()
assert not d.is_alive()
with XephyrDisplay(extra_args=["-c"]) as d:
assert d.is_alive()
assert not d.is_alive()
def test_display():
d = Display()
assert d.display is None
d.start()
assert d.display >= 0
d = XvfbDisplay()
assert d.display is None
d.start()
assert d.display >= 0
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