def test_log_infeasible_bounds(self):
"""Test for logging of infeasible variable bounds."""
m = self.build_model()
m.x.setlb(2)
m.x.setub(0)
output = StringIO()
with LoggingIntercept(output, 'pyomo.util.infeasible', logging.INFO):
log_infeasible_bounds(m)
expected_output = ["VAR x: 1 < LB 2", "VAR x: 1 > UB 0"]
self.assertEqual(expected_output, output.getvalue().splitlines())
def print_infeasible_bounds(m, tol=1e-6, output_file=None):
"""
print the infeasible variable bounds in the model
"""
with _logging_handler(output_file) as logger:
log_infeasible_bounds(m, tol=tol, logger=logger)