def test_limit_scope3(self):
"""Test that two modifiers of the same type limit the scope of the first modifier."""
doc = nlp("no evidence of CHF, neg for pneumonia")
rule = ConTextRule("no evidence of", "DEFINITE_NEGATED_EXISTENCE",
"FORWARD")
rule2 = ConTextRule("neg for", "DEFINITE_NEGATED_EXISTENCE", "FORWARD")
modifier = ConTextModifier(rule, 0, 3, doc)
modifier2 = ConTextModifier(rule2, 5, 7, doc)
assert modifier.limit_scope(modifier2)
def test_terminate_limit_scope_backward(self):
"""Test that a 'TERMINATE' modifier will limit the scope of a 'BACKWARD' modifier.
"""
doc = nlp("Pt has chf but pneumonia is ruled out")
rule = ConTextRule("is ruled out", "NEGATED_EXISTENCE", "BACKWARD")
modifier = ConTextModifier(rule, 6, 8, doc)
rule2 = ConTextRule("but", "TERMINATE", "TERMINATE")
modifier2 = ConTextModifier(rule2, 3, 4, doc)
assert modifier.limit_scope(modifier2)
def test_terminate_limit_scope_custom(self):
"""Test that a modifier will be explicitly terminated by a modifier with a category
in terminated_by."""
doc = nlp("negative for flu, positive for pneumonia.")
rule = ConTextRule("negative for",
"NEGATED_EXISTENCE",
direction="FORWARD",
terminated_by={"POSITIVE_EXISTENCE"})
rule2 = ConTextRule("positive for",
"POSITIVE_EXISTENCE",
direction="FORWARD")
modifier = ConTextModifier(rule, 0, 2, doc)
modifier2 = ConTextModifier(rule2, 4, 6, doc)
assert modifier.limit_scope(modifier2)
def test_terminate_limit_scope_custom2(self):
"""Test that a modifier will be explicitly terminated by a modifier with a category
in terminated_by."""
doc = nlp("flu is negative, pneumonia is positive.")
rule = ConTextRule("negative",
"NEGATED_EXISTENCE",
direction="BACKWARD")
rule2 = ConTextRule("positive",
"POSITIVE_EXISTENCE",
direction="BACKWARD",
terminated_by={"NEGATED_EXISTENCE"})
modifier = ConTextModifier(rule, 2, 3, doc)
modifier2 = ConTextModifier(rule2, 6, 7, doc)
assert modifier2.limit_scope(modifier)
def test_no_limit_scope_same_category_different_allowed_types(self):
"""Test that a two ConTextModifiers of the same type but with different
allowed types does not limits the scope of the modifier object.
"""
doc = nlp("no history of travel to Puerto Rico, neg for pneumonia")
rule = ConTextRule(
"no history of",
"DEFINITE_NEGATED_EXISTENCE",
"FORWARD",
allowed_types={"TRAVEL"},
)
rule2 = ConTextRule(
"neg for",
"DEFINITE_NEGATED_EXISTENCE",
"FORWARD",
allowed_types={"CONDITION"},
)
modifier = ConTextModifier(rule, 0, 3, doc)
modifier2 = ConTextModifier(rule2, 8, 10, doc)
assert not modifier.limit_scope(modifier2)
def test_limit_scope2(self):
doc, rule, modifier = self.create_objects()
rule2 = ConTextRule("but", "TERMINATE", "TERMINATE")
modifier2 = ConTextModifier(rule2, 2, 4, doc)
assert not modifier2.limit_scope(modifier)
