def test_duplicate_declare():
from pyknow import KnowledgeEngine, Fact
ke = KnowledgeEngine()
f1 = ke.declare(Fact(color='red'))
assert len(ke.facts) == 1
f2 = ke.duplicate(f1, color='yellow', blink=True)
assert len(ke.facts) == 2
assert f2 is not f1
assert f2['color'] == 'yellow'
assert f2['blink']
def test_duplicate_declare():
from pyknow import KnowledgeEngine, Fact
ke = KnowledgeEngine()
f1 = ke.declare(Fact(color='red'))
assert len(ke.facts) == 1
f2 = ke.duplicate(f1, color='yellow', blink=True)
assert len(ke.facts) == 2
assert f2 is not f1
assert f2['color'] == 'yellow'
assert f2['blink']
