def test_help_solvers(self):
with capture_output() as OUT:
help_solvers()
OUT = OUT.getvalue()
self.assertTrue(re.search('Pyomo Solvers and Solver Managers', OUT))
self.assertTrue(re.search('Serial Solver', OUT))
# Test known solvers and metasolver flags
# ASL is a metasolver
self.assertTrue(re.search('\n \*asl ', OUT))
# PS is bundles with Pyomo so should always be available
self.assertTrue(re.search('\n \+ps ', OUT))
for solver in ('ipopt', 'cbc', 'glpk'):
s = SolverFactory(solver)
if s.available():
self.assertTrue(
re.search("\n \+%s " % solver, OUT),
"' +%s' not found in help --solvers" % solver)
else:
self.assertTrue(
re.search("\n %s " % solver, OUT),
"' %s' not found in help --solvers" % solver)
for solver in ('baron', ):
s = SolverFactory(solver)
if s.license_is_valid():
self.assertTrue(
re.search("\n \+%s " % solver, OUT),
"' +%s' not found in help --solvers" % solver)
elif s.available():
self.assertTrue(
re.search("\n \-%s " % solver, OUT),
"' -%s' not found in help --solvers" % solver)
else:
self.assertTrue(
re.search("\n %s " % solver, OUT),
"' %s' not found in help --solvers" % solver)
