def test_kernel():
pytest.importorskip("pexpect")
knl = MaximaKernel()
knl.exec_str("k:1/(sqrt((x0-(a+t*b))^2+(y0-(c+t*d))^2+(z0-(e+t*f))^2))")
knl.eval_str("sum(diff(k, t,deg)*t^deg,deg,0,6)")
assert knl.eval_str("2+2").strip() == "4"
knl.shutdown()
def _check_maxima():
global MAXIMA_UNAVAILABLE
import os
executable = os.environ.get("PYMBOLIC_MAXIMA_EXECUTABLE", "maxima")
try:
knl = MaximaKernel(executable=executable)
MAXIMA_UNAVAILABLE = False
knl.shutdown()
except (ImportError, RuntimeError):
MAXIMA_UNAVAILABLE = True
def test_restart(knl):
pytest.importorskip("pexpect")
knl = MaximaKernel()
knl.restart()
knl.eval_str("1")
knl.shutdown()
def test_kernel():
pytest.importorskip("pexpect")
knl = MaximaKernel()
knl.exec_str("k:1/(sqrt((x0-(a+t*b))^2+(y0-(c+t*d))^2+(z0-(e+t*f))^2))")
knl.eval_str("sum(diff(k, t,deg)*t^deg,deg,0,6)")
assert knl.eval_str("2+2").strip() == "4"
knl.shutdown()
def knl(request):
knl = MaximaKernel()
request.addfinalizer(knl.shutdown)
return knl
def test_restart(knl):
knl = MaximaKernel()
knl.restart()
knl.eval_str("1")
knl.shutdown()
def knl(request):
pytest.importorskip("pexpect")
knl = MaximaKernel()
request.addfinalizer(knl.shutdown)
return knl