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test: skip tests when optional dependencies are not installed #120 #181

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test: skip tests when optional dependencies are not installed #120 #181

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12 changes: 10 additions & 2 deletions pygmo/_algorithm_test.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,6 @@ def runTest(self):
self.run_name_info_tests()
self.run_thread_safety_tests()
self.run_pickle_tests()
self.run_scipy_wrapper_tests()

def run_basic_tests(self):
# Tests for minimal algorithm, and mandatory methods.
Expand Down Expand Up @@ -428,7 +427,16 @@ def run_pickle_tests(self):
self.assertTrue(a.is_(mbh))
self.assertTrue(a.extract(mbh).inner_algorithm.is_(_algo))

def run_scipy_wrapper_tests(self):
class algorithm_scipy_wrapper_tests(_ut.TestCase):
"""Test case for the :class:`~pygmo.algorithm` class with the scipy.optimize wrapper."""

def runTest(self):
try:
import scipy.version as _sc
except ImportError:
raise _ut.case.SkipTest("scipy module could not be imported")
del _sc

from . import (
ackley,
algorithm,
Expand Down
11 changes: 6 additions & 5 deletions pygmo/test.py
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Original file line number Diff line number Diff line change
Expand Up @@ -663,6 +663,11 @@ def runTest(self):
from .core import free_form, topology, ring
except ImportError:
return

try:
import networkx as nx
except ImportError:
raise _ut.case.SkipTest("networkx module could not be imported")

# Default ctor.
udt = free_form()
Expand Down Expand Up @@ -693,11 +698,6 @@ def runTest(self):
self.assertTrue(len(topo.get_connections(3)[1]) == 0)
self.assertEqual(topo.get_name(), "Free form")

try:
import networkx as nx
except ImportError:
return

# Constructor from a valid DiGraph.
g = nx.DiGraph()
udt = free_form(g)
Expand Down Expand Up @@ -3429,6 +3429,7 @@ def run_test_suite(level=0):
suite.addTest(thread_island_torture_test_case())
suite.addTest(_problem_test.problem_test_case())
suite.addTest(_algorithm_test.algorithm_test_case())
suite.addTest(_algorithm_test.algorithm_scipy_wrapper_tests())
suite.addTest(_island_test.mp_island_test_case(level))
suite.addTest(_island_test.ipyparallel_island_test_case(level))
suite.addTest(golomb_ruler_test_case())
Expand Down