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from unittestmock import UnitTestMock
import pytest
from cykhash import Int64Set, Int32Set, Float64Set, Float32Set, PyObjectSet
@pytest.mark.parametrize(
"set_type",
[Int64Set, Int32Set, Float64Set, Float32Set, PyObjectSet]
)
class TestSetIterator(UnitTestMock):
def test_iterate(self, set_type):
cy_set = set_type()
py_set = set()
for i in range(10):
cy_set.add(i)
py_set.add(i)
clone = set()
for x in cy_set:
clone.add(x)
self.assertEqual(py_set, clone)
def test_iterate_after_clear(self, set_type):
cy_set = set_type(range(1000))
it = iter(cy_set)
for x in range(1000):
next(it)
cy_set.clear()
with pytest.raises(StopIteration):
next(it)
def test_iterate_after_growing(self, set_type):
cy_set = set_type()
it = iter(cy_set)
#change bucket size
for i in range(1000):
cy_set.add(i)
#make sure new size is used
lst = []
with pytest.raises(StopIteration):
for x in range(1001):
lst.append(next(it))
self.assertEqual(set(lst), set(range(1000)))
def test_iterate_after_growing2(self, set_type):
cy_set = set_type()
cy_set.add(42)
it = iter(cy_set)
next(it) #iterator shows to end now
cy_set.add(11)
cy_set.add(15)
cy_set.add(13)
#old end is no longer an end
try:
self.assertTrue(next(it) in {42,11,15,13})
except StopIteration:
pass # stop iteration could be an acceptable outcome
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