def test_detect_cycle_direct(self):
a = MockTarget('a')
# no cycles yet
InternalTarget.sort_targets([a])
a.internal_dependencies = [a]
try:
InternalTarget.sort_targets([a])
self.fail("Expected a cycle to be detected")
except InternalTarget.CycleException:
# expected
pass
def testDetectIndirect(self):
c = MockTarget('c')
b = MockTarget('b', [ c ])
a = MockTarget('a', [ c, b ])
# no cycles yet
InternalTarget.sort_targets([a])
c.internal_dependencies = [a]
try:
InternalTarget.sort_targets([a])
self.fail("Expected a cycle to be detected")
except InternalTarget.CycleException:
# expected
pass
