def test_ordered_results_has_results_post_reset(self):
"""
Test that an empty list is returned after a reset where there was a
cached value before the reset.
"""
iqrs = IqrSession()
# Mocking results map existing for return.
d0 = DescriptorMemoryElement('', 0).set_vector([0])
d1 = DescriptorMemoryElement('', 1).set_vector([1])
d2 = DescriptorMemoryElement('', 2).set_vector([2])
d3 = DescriptorMemoryElement('', 3).set_vector([3])
iqrs.results = {
d0: 0.0,
d1: 0.8,
d2: 0.2,
d3: 0.4,
}
# Initial call to ``ordered_results`` should have a non-None return.
assert iqrs.ordered_results() is not None
iqrs.reset()
# Post-reset, there should be no results nor cache.
actual = iqrs.ordered_results()
assert actual == []
def test_ordered_results_no_results_no_cache(self):
"""
Test that an empty list is returned when ``ordered_results`` is called
before any refinement has occurred.
"""
iqrs = IqrSession()
assert iqrs.ordered_results() == []
def test_ordered_results_has_results_no_cache(self):
"""
Test that an appropriate list is returned by ``ordered_results`` after
a refinement has occurred.
"""
iqrs = IqrSession()
# Mocking results map existing for return.
d0 = DescriptorMemoryElement('', 0).set_vector([0])
d1 = DescriptorMemoryElement('', 1).set_vector([1])
d2 = DescriptorMemoryElement('', 2).set_vector([2])
d3 = DescriptorMemoryElement('', 3).set_vector([3])
iqrs.results = {
d0: 0.0,
d1: 0.8,
d2: 0.2,
d3: 0.4,
}
# Cache should be empty before call to ``ordered_results``
assert iqrs._ordered_results is None
with mock.patch('smqtk.iqr.iqr_session.sorted',
side_effect=sorted) as m_sorted:
actual1 = iqrs.ordered_results()
m_sorted.assert_called_once()
expected = [(d1, 0.8), (d3, 0.4), (d2, 0.2), (d0, 0.0)]
assert actual1 == expected
# Calling the method a second time should not result in a ``sorted``
# operation due to caching.
with mock.patch('smqtk.iqr.iqr_session.sorted') as m_sorted:
actual2 = iqrs.ordered_results()
m_sorted.assert_not_called()
assert actual2 == expected
# Both returns should be shallow copies, thus not the same list
# instances.
assert id(actual1) != id(actual2)
