def test_compare_sequence_insert():
source_data = ['a', 'b', 'c']
target_data = ['z', 'a', 'b', 'c']
diff_graph = dijon.compare(source_data, target_data)
diff_nodes = [n for n in diff_graph.iter_nodes(differences=True)]
assert len(diff_nodes) == 4
difference = diff_nodes[0]
assert isinstance(difference, dijon.SequenceItemModification)
assert difference.full_path == ('root', (0, 1))
assert difference.source.full_path == ('root', (0, 1), 0)
assert difference.source.data == 'a'
assert difference.target.full_path == ('root', (0, 1), 1)
assert difference.target.data == 'a'
difference = diff_nodes[1]
assert isinstance(difference, dijon.SequenceItemModification)
assert difference.full_path == ('root', (1, 2))
assert difference.source.full_path == ('root', (1, 2), 1)
assert difference.source.data == 'b'
assert difference.target.full_path == ('root', (1, 2), 2)
assert difference.target.data == 'b'
difference = diff_nodes[2]
assert isinstance(difference, dijon.SequenceItemModification)
assert difference.full_path == ('root', (2, 3))
assert difference.source.full_path == ('root', (2, 3), 2)
assert difference.source.data == 'c'
assert difference.target.full_path == ('root', (2, 3), 3)
assert difference.target.data == 'c'
difference = diff_nodes[3]
assert isinstance(difference, dijon.SequenceItemAddition)
assert difference.full_path == ('root', (None, 0))
assert difference.source is None
assert difference.target.full_path == ('root', (None, 0), 0)
assert difference.target.data == 'z'
target_data = ['a', 'b', 'z', 'c']
diff_graph = dijon.compare(source_data, target_data)
diff_nodes = [n for n in diff_graph.iter_nodes(differences=True)]
assert len(diff_nodes) == 2
difference = diff_nodes[0]
assert isinstance(difference, dijon.SequenceItemModification)
assert difference.full_path == ('root', (2, 3))
assert difference.source.full_path == ('root', (2, 3), 2)
assert difference.source.data == 'c'
assert difference.target.full_path == ('root', (2, 3), 3)
assert difference.target.data == 'c'
difference = diff_nodes[1]
assert isinstance(difference, dijon.SequenceItemAddition)
assert difference.full_path == ('root', (None, 2))
assert difference.source is None
assert difference.target.full_path == ('root', (None, 2), 2)
assert difference.target.data == 'z'
def test_compare_object_no_difference():
source_data = {'a': 1, 'b': 2, 'c': 3}
target_data = {'a': 1, 'b': 2, 'c': 3}
diff_graph = dijon.compare(source_data, target_data)
diff_nodes = [n for n in diff_graph.iter_nodes(differences=True)]
assert len(diff_nodes) == 0
def test_compare_sequence_no_difference():
source_data = ['a', 'b', 'c']
target_data = ['a', 'b', 'c']
diff_graph = dijon.compare(source_data, target_data)
diff_nodes = [n for n in diff_graph.iter_nodes(differences=True)]
assert len(diff_nodes) == 0
def test_compare_object_field_deletion():
source_data = {'a': 1, 'b': 2, 'c': 3}
target_data = {'a': 1, 'b': 2}
diff_graph = dijon.compare(source_data, target_data)
diff_nodes = [n for n in diff_graph.iter_nodes(differences=True)]
assert len(diff_nodes) == 1
difference = diff_nodes[0]
assert isinstance(difference, dijon.ObjectFieldDeletion)
assert difference.full_path == ('root', ('c', None))
assert difference.source.full_path == ('root', ('c', None), 'c')
assert difference.source.data == 3
assert difference.target is None
def test_compare_sequence_append():
source_data = ['a', 'b', 'c']
target_data = ['a', 'b', 'c', 'd']
diff_graph = dijon.compare(source_data, target_data)
diff_nodes = [n for n in diff_graph.iter_nodes(differences=True)]
assert len(diff_nodes) == 1
difference = diff_nodes[0]
assert isinstance(difference, dijon.SequenceItemAddition)
assert difference.full_path == ('root', (None, 3))
assert difference.source is None
assert difference.target.full_path == ('root', (None, 3), 3)
assert difference.target.value == 'd'
def test_compare_sequence_deletion():
source_data = ['a', 'b', 'c']
target_data = ['a', 'b']
diff_graph = dijon.compare(source_data, target_data)
diff_nodes = [n for n in diff_graph.iter_nodes(differences=True)]
assert len(diff_nodes) == 1
difference = diff_nodes[0]
assert isinstance(difference, dijon.SequenceItemDeletion)
assert difference.full_path == ('root', (2, None))
assert difference.source.full_path == ('root', (2, None), 2)
assert difference.source.data == 'c'
assert difference.target is None
target_data = ['b', 'c']
diff_graph = dijon.compare(source_data, target_data)
diff_nodes = [n for n in diff_graph.iter_nodes(differences=True)]
assert len(diff_nodes) == 3
difference = diff_nodes[0]
assert isinstance(difference, dijon.SequenceItemModification)
assert difference.full_path == ('root', (1, 0))
assert difference.source.full_path == ('root', (1, 0), 1)
assert difference.source.data == 'b'
assert difference.target.full_path == ('root', (1, 0), 0)
assert difference.target.data == 'b'
difference = diff_nodes[1]
assert isinstance(difference, dijon.SequenceItemModification)
assert difference.full_path == ('root', (2, 1))
assert difference.source.full_path == ('root', (2, 1), 2)
assert difference.source.data == 'c'
assert difference.target.full_path == ('root', (2, 1), 1)
assert difference.target.data == 'c'
difference = diff_nodes[2]
assert isinstance(difference, dijon.SequenceItemDeletion)
assert difference.full_path == ('root', (0, None))
assert difference.source.full_path == ('root', (0, None), 0)
assert difference.source.data == 'a'
assert difference.target is None
target_data = ['a', 'c']
diff_graph = dijon.compare(source_data, target_data)
diff_nodes = [n for n in diff_graph.iter_nodes(differences=True)]
assert len(diff_nodes) == 2
difference = diff_nodes[0]
assert isinstance(difference, dijon.SequenceItemModification)
assert difference.full_path == ('root', (2, 1))
assert difference.source.full_path == ('root', (2, 1), 2)
assert difference.source.data == 'c'
assert difference.target.full_path == ('root', (2, 1), 1)
assert difference.target.data == 'c'
difference = diff_nodes[1]
assert isinstance(difference, dijon.SequenceItemDeletion)
assert difference.full_path == ('root', (1, None))
assert difference.source.full_path == ('root', (1, None), 1)
assert difference.source.data == 'b'
assert difference.target is None