def test_diff_errors(self):
tests = [(u"foo", True),
((1, 2, ), (3, 4, )),
(dict(key=(1, 2, )), dict()),
(None, [1, 2, ])]
for d1, d2 in tests:
with pytest.raises(TypeError):
diff(d1, d2)
def test_diff_float(self):
tests = [(1.1, 1.1, []),
(Undefined, 2.2, [(INSERT, [], 2.2)]),
(2.2, Undefined, [(DELETE, [], 2.2)]),
(3.3, 4.4, [(DELETE, [], 3.3), (INSERT, [], 4.4)])]
for d1, d2, expected in tests:
assert diff(d1, d2) == expected
def test_diff_int(self):
tests = [(1, 1, []),
(Undefined, 2, [(INSERT, [], 2)]),
(2, Undefined, [(DELETE, [], 2)]),
(3, 4, [(DELETE, [], 3), (INSERT, [], 4)])]
for d1, d2, expected in tests:
assert diff(d1, d2) == expected
def test_diff_bool(self):
tests = [(True, True, []),
(Undefined, True, [(INSERT, [], True)]),
(True, Undefined, [(DELETE, [], True)]),
(True, False, [(DELETE, [], True), (INSERT, [], False)])]
for d1, d2, expected in tests:
assert diff(d1, d2) == expected
def test_diff_list(self):
tests = [([1], [1], []),
(Undefined, [2], [(INSERT, [], [2])]),
([2], Undefined, [(DELETE, [], [2])]),
([1, 2], [2, 3], [(DELETE, [], [1]), (INSERT, [], [3])]),
([9, 8], [8, 7, 6, 5], [(DELETE, [], [9]), (INSERT, [], [7, 6, 5])])]
for d1, d2, expected in tests:
assert diff(d1, d2) == expected
def test_diff_unicode(self):
tests = [(u"same", u"same", []),
(Undefined, u"new", [(INSERT, [], u"new")]),
(u"old", Undefined, [(DELETE, [], u"old")]),
(u"some value", u"some other value",
[(DELETE, [], u"some value"), (INSERT, [], u"some other value")])]
for d1, d2, expected in tests:
assert diff(d1, d2) == expected
def test_diff_dict(self):
tests = [(dict(same=1), dict(same=1), []),
(Undefined, dict(new=1), [(INSERT, ["new"], 1)]),
(dict(old=1), Undefined, [(DELETE, ["old"], 1)]),
(dict(same=1, old=2), dict(same=1, new1=3, new2=4),
[(INSERT, ["new1"], 3), (INSERT, ["new2"], 4),
(DELETE, ["old"], 2)])]
for d1, d2, expected in tests:
assert diff(d1, d2) == expected
def test_diff_str_unicode_keys(self):
d1 = {"old": u"old", u"same1": u"same1", "same2": u"same2"}
d2 = {u"new": u"new", "same1": u"same1", u"same2": u"same2"}
assert diff(d1, d2) == [(INSERT, ["new"], u"new"),
(DELETE, ["old"], u"old")]
def test_diff_nested_dict(self):
tests = [(dict(key=dict(same=None)), dict(key=dict(same=None)), []),
(dict(key=dict()), dict(key=dict(added=None)), [(INSERT, ["key", "added"], None)]),
(dict(key=dict(removed=None)), dict(key=dict()), [(DELETE, ["key", "removed"], None)])]
for d1, d2, expected in tests:
assert diff(d1, d2) == expected
def test_diff_none(self):
tests = [(None, None, []),
(Undefined, None, [(INSERT, [], None)]),
(None, Undefined, [(DELETE, [], None)])]
for d1, d2, expected in tests:
assert diff(d1, d2) == expected
def test_diff_no_change(self):
datastruct = [None, True, 42, u"value", [1, 2, 3], dict(one=1, two=2)]
for d in datastruct:
assert diff(d, d) == []