def test_testproblem_init(problems_list):
p1 = CVXProblem(**problems_list[0])
assert p1.metadata["cone_types"] == set([s.LP])
p2 = CVXProblem(**problems_list[1])
assert p2.metadata["cone_types"] == set([s.LP, s.SOCP])
p3 = CVXProblem(**problems_list[2])
assert p3.metadata["cone_types"] == set([s.LP, s.SOCP, s.SDP])
p4 = CVXProblem(**problems_list[3])
assert p4.metadata["cone_types"] == set([s.LP, s.EXP])
p5 = CVXProblem(**problems_list[4])
assert p5.metadata["cone_types"] == set([s.LP, s.MIP])
def test_read(problems_list):
mock_import = MagicMock()
mock_import.return_value = MagicMock(problems=problems_list)
if sys.version_info[0] < 3: # Python 2.x
with patch("__builtin__.__import__", mock_import):
problems = CVXProblem.read("fileID", "problemDir")
assert [problem.problemID for problem in problems] == [
"lp_prob", "socp_prob", "sdp_prob", "exp_prob", "mip_prob"
]
else: # Python 3.x
with patch("builtins.__import__", mock_import):
problems = CVXProblem.read("fileID", "problemDir")
assert [problem.problemID for problem in problems] == [
"lp_prob", "socp_prob", "sdp_prob", "exp_prob", "mip_prob"
]
def mip_prob():
# {LP, MIP}
x = cp.Int(1)
prob = cp.Problem(cp.Minimize(x),[x >= 0])
return CVXProblem(problemID="mip_prob",
problem=prob,
opt_val=0.0)
def lp_prob():
# {LP}
x = cp.Variable()
prob = cp.Problem(cp.Minimize(x), [x >= 2])
return CVXProblem(problemID="lp_prob",
problem=prob,
opt_val=2.0)
def exp_prob():
# {LP, EXP}
x = cp.Variable(2)
A = np.eye(2)
prob = cp.Problem(cp.Minimize(cp.log_sum_exp(x)), [A * x >= 0])
return CVXProblem(problemID="exp_prob",
problem=prob,
opt_val=float('-inf'))
def empty_prob():
x = cp.Variable()
prob = cp.Problem(cp.Minimize(x))
return CVXProblem(problemID="empty_prob",
problem=prob,
opt_val=float('-inf'))