def test_empty(self):
x = Xmrs()
assert x.top is None
assert x.index is None
assert x.xarg is None
assert len(x.eps()) == 0
assert len(x.hcons()) == 0
assert len(x.icons()) == 0
assert len(x.variables()) == 0
def test_empty(self):
x = Xmrs()
assert x.top is None
assert x.index is None
assert x.xarg is None
assert len(x.nodeids()) == 0
assert len(x.eps()) == 0
assert len(x.hcons()) == 0
assert len(x.icons()) == 0
assert len(x.variables()) == 0
def test_variables_and_properties(self):
sp = Pred.surface
# variables can be passed in with properties
x = Xmrs(vars={'x1':{'PERS':'3','NUM':'sg'}, 'e2':{'SF':'prop'}})
assert len(x.variables()) == 2
assert x.properties('x1')['PERS'] == '3'
assert x.properties('e2')['SF'] == 'prop'
# when there's no EP, you cannot retrieve properties via a nodeid
with pytest.raises(KeyError): x.properties(10)
# but when an EP with an ARG0 exists, you can
x.add_eps([(10, sp('_n_n_rel'), 'h3', {'ARG0': 'x1'})])
assert x.properties(10) == {'PERS': '3', 'NUM': 'sg'}
# variables can also be inferred from structural things
x = Xmrs(top='h0', index='e2', xarg='e5')
assert set(x.variables()) == {'h0', 'e2', 'e5'}
x = Xmrs(eps=[(10, sp('_n_n_rel'), 'h3', {'ARG0': 'x4'})])
assert set(x.variables()) == {'x4', 'h3'}
x = Xmrs(hcons=[('h0', 'qeq', 'h1')])
assert set(x.variables()) == {'h0', 'h1'}
x = Xmrs(icons=[('x4', 'focus', 'x6')])
assert set(x.variables()) == {'x4', 'x6'}
# variables can be passed in and inferred
x = Xmrs(icons=[('x4', 'focus', 'x6')], vars={'x4': {'PERS': '3'}})
assert set(x.variables()) == {'x4', 'x6'}
assert x.properties('x4') == {'PERS': '3'}
assert x.properties('x6') == {}
# adding things later doesn't reset properties
x = Xmrs(vars={'x4': {'PERS': '3'}})
x.add_eps([(10, sp('_n_n_rel'), 'h3', {'ARG0': 'x4'})])
assert set(x.variables()) == {'x4', 'h3'}
assert x.properties('x4') == {'PERS': '3'}
# and properties can't be added via properties()
x.properties('x4')['NUM'] = 'sg'
assert x.properties('x4') == {'PERS': '3'}
# TODO: how do we add properties?
# constants are not variables
x = Xmrs(eps=[(10, sp('_v_v_rel'), 'h3',
{'ARG0': 'e2', 'CARG': '"dog"'})])
assert set(x.variables()) == {'e2', 'h3'}
# Constants don't need to be the CARG role, and don't need
# quotes (but if there are quotes, even var-looking things are
# constants). pyDelphin differs from the LKB in the first
# respect, but also maybe in the second.
x = Xmrs(eps=[(10, sp('_v_v_rel'), 'h3',
{'ARG0': 'e2', 'ARG1': '1', 'ARG2': '"x5"'})])
assert set(x.variables()) == {'h3', 'e2'}
def test_variables_and_properties(self):
sp = Pred.stringpred
# variables can be passed in with properties
x = Xmrs(vars={'x1':{'PERS':'3','NUM':'sg'}, 'e2':{'SF':'prop'}})
assert len(x.variables()) == 2
assert x.properties('x1')['PERS'] == '3'
assert x.properties('e2')['SF'] == 'prop'
# when there's no EP, you cannot retrieve properties via a nodeid
with pytest.raises(KeyError): x.properties(10)
# but when an EP with an ARG0 exists, you can
x.add_eps([(10, sp('_n_n_rel'), 'h3', {'ARG0': 'x1'})])
assert x.properties(10) == {'PERS': '3', 'NUM': 'sg'}
# variables can also be inferred from structural things
x = Xmrs(top='h0', index='e2', xarg='e5')
assert set(x.variables()) == {'h0', 'e2', 'e5'}
x = Xmrs(eps=[(10, sp('_n_n_rel'), 'h3', {'ARG0': 'x4'})])
assert set(x.variables()) == {'x4', 'h3'}
x = Xmrs(hcons=[('h0', 'qeq', 'h1')])
assert set(x.variables()) == {'h0', 'h1'}
x = Xmrs(icons=[('x4', 'focus', 'x6')])
assert set(x.variables()) == {'x4', 'x6'}
# variables can be passed in and inferred
x = Xmrs(icons=[('x4', 'focus', 'x6')], vars={'x4': {'PERS': '3'}})
assert set(x.variables()) == {'x4', 'x6'}
assert x.properties('x4') == {'PERS': '3'}
assert x.properties('x6') == {}
# adding things later doesn't reset properties
x = Xmrs(vars={'x4': {'PERS': '3'}})
x.add_eps([(10, sp('_n_n_rel'), 'h3', {'ARG0': 'x4'})])
assert set(x.variables()) == {'x4', 'h3'}
assert x.properties('x4') == {'PERS': '3'}
# and properties can't be added via properties()
x.properties('x4')['NUM'] = 'sg'
assert x.properties('x4') == {'PERS': '3'}
# TODO: how do we add properties?
# constants are not variables
x = Xmrs(eps=[(10, sp('_v_v_rel'), 'h3',
{'ARG0': 'e2', 'CARG': '"dog"'})])
assert set(x.variables()) == {'e2', 'h3'}
# Constants don't need to be the CARG role, and don't need
# quotes (but if there are quotes, even var-looking things are
# constants). pyDelphin differs from the LKB in the first
# respect, but also maybe in the second.
x = Xmrs(eps=[(10, sp('_v_v_rel'), 'h3',
{'ARG0': 'e2', 'ARG1': '1', 'ARG2': '"x5"'})])
assert set(x.variables()) == {'h3', 'e2'}
