def test_compare_sequence_of_dicts():
seq1 = [
{'a': 1, 'b': 1, 'c': 1},
{'a': 2, 'b': 2, 'c': 2},
{'a': 3, 'b': 3, 'c': 3},
]
seq2 = [
{'a': 30, 'b': 30, 'c': 3},
{'a': 2, 'b': 20, 'c': 2},
{'a': 1, 'b': 1, 'c': 10},
]
diff = compare_objects(seq1, seq2)
assert diff['total'] == 3
assert diff['distance'] == 1.0 # All were moved
assert diff['added'] == []
assert diff['removed'] == []
assert sorted(diff['changed']) == [0, 1, 2]
assert sorted(diff['changes'].keys()) == sorted(diff['changed'])
assert diff['changes'][0]['distance'] == 1 / 3
assert diff['changes'][0]['pos'] == 2
assert diff['changes'][1]['distance'] == 1 / 3
assert diff['changes'][1]['pos'] == 1
assert diff['changes'][2]['distance'] == 2 / 3
assert diff['changes'][2]['pos'] == 0
assert diff['equal'] == []
assert diff['total'] == 3
def test_compare_simple_dicts():
dict1 = dict(aaa='A', bbb='B', ccc='C1')
dict2 = dict(bbb='B', ccc='C2', ddd='D')
diff = compare_objects(dict1, dict2)
assert diff['distance'] == 3/4
assert diff['added'] == ['ddd']
assert diff['removed'] == ['aaa']
assert diff['changed'] == ['ccc']
assert diff['equal'] == ['bbb']
assert diff['changes'] == {
'ccc': {'distance': 1.0,
'left': 'C1',
'right': 'C2'}}
def test_compare_simple_sequences_different_length():
seq1 = ['A', 'B', 'C', 'D']
seq2 = ['A', 'D', 'E', 'C', 'F', 'G']
diff = compare_objects(seq1, seq2)
assert diff['distance'] == 6 / 7
assert sorted(diff['added']) == [2, 4, 5]
assert diff['removed'] == [1]
assert sorted(diff['changed']) == [2, 3]
assert sorted(diff['changes'].keys()) == [2, 3]
assert diff['equal'] == [0]
assert diff['changes'][2]['distance'] == 0.0
assert diff['changes'][2]['pos'] == 3
assert diff['changes'][3]['distance'] == 0.0
assert diff['changes'][3]['pos'] == 1
assert diff['total'] == 7
def test_compare_base_types():
assert compare_objects("Hello", "Hello") == {
'distance': 0.0, 'left': "Hello", 'right': "Hello"}
assert compare_objects("Hello", "World") == {
'distance': 1.0, 'left': "Hello", 'right': "World"}
assert compare_objects(1, 1) == {
'distance': 0.0, 'left': 1, 'right': 1}
assert compare_objects(1, 2) == {
'distance': 1.0, 'left': 1, 'right': 2}
assert compare_objects(True, True) == {
'distance': 0.0, 'left': True, 'right': True}
assert compare_objects(True, False) == {
'distance': 1.0, 'left': True, 'right': False}
assert compare_objects(1.0, 1.0) == {
'distance': 0.0, 'left': 1.0, 'right': 1.0}
assert compare_objects(1.0, 2.0) == {
'distance': 1.0, 'left': 1.0, 'right': 2.0}
def compare(self, other):
"""Compare differences between this object and another"""
from differ import compare_objects
return compare_objects(self.serialize(), other.serialize())
def compare(self, other):
"""Compare differences between this object and another"""
from differ import compare_objects
return compare_objects(self.serialize(), other.serialize())
def test_compare_equal_sequences():
diff = compare_objects([1, 2, 3], [1, 2, 3])
assert diff['distance'] == 0.0
