def check_diff_and_patch(a, b):
"Check that patch(a, diff(a,b)) reproduces b."
d = shallow_diff(a, b)
assert is_valid_diff(d)
assert patch(a, d) == b
d = deep_diff(a, b)
assert is_valid_diff(d)
assert patch(a, d) == b
def check_diff_and_patch(a, b):
"Check that patch(a, diff(a,b)) reproduces b."
d = shallow_diff(a, b)
assert is_valid_diff(d)
assert patch(a, d) == b
d = deep_diff(a, b)
assert is_valid_diff(d)
assert patch(a, d) == b
def test_diff_and_patch():
# Note: check_symmetric_diff_and_patch handles (a,b) and (b,a) for both
# shallow and deep diffs, simplifying the number of cases to cover in here.
# Empty
mda = {}
mdb = {}
check_symmetric_diff_and_patch(mda, mdb)
# One-sided content/empty
mda = {"a": 1}
mdb = {}
check_symmetric_diff_and_patch(mda, mdb)
# One-sided content/empty multilevel
mda = {"a": 1, "b": {"ba": 21}}
mdb = {}
check_symmetric_diff_and_patch(mda, mdb)
# One-sided content/empty multilevel
mda = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
mdb = {}
check_symmetric_diff_and_patch(mda, mdb)
# Partial delete
mda = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
mdb = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31}}
check_symmetric_diff_and_patch(mda, mdb)
mda = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
mdb = {"b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
check_symmetric_diff_and_patch(mda, mdb)
mda = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
mdb = {"b": {"ba": 21}, "c": {"cb": 32}}
check_symmetric_diff_and_patch(mda, mdb)
# One-level modification
mda = {"a": 1}
mdb = {"a": 10}
check_symmetric_diff_and_patch(mda, mdb)
# Two-level modification
mda = {"a": 1, "b": {"ba": 21}}
mdb = {"a": 10, "b": {"ba": 210}}
check_symmetric_diff_and_patch(mda, mdb)
mda = {"a": 1, "b": {"ba": 21}}
mdb = {"a": 1, "b": {"ba": 210}}
check_symmetric_diff_and_patch(mda, mdb)
# Multilevel modification
mda = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
mdb = {"a": 10, "b": {"ba": 210}, "c": {"ca": 310, "cb": 320}}
check_symmetric_diff_and_patch(mda, mdb)
mda = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
mdb = {"a": 1, "b": {"ba": 210}, "c": {"ca": 310, "cb": 32}}
check_symmetric_diff_and_patch(mda, mdb)
# Multilevel mix of delete, add, modify
mda = {
"deleted": 1,
"modparent": {
"mod": 21
},
"mix": {
"del": 31,
"mod": 32,
"unchanged": 123
}
}
mdb = {
"added": 7,
"modparent": {
"mod": 22
},
"mix": {
"add": 42,
"mod": 37,
"unchanged": 123
}
}
check_symmetric_diff_and_patch(mda, mdb)
# A more explicit assert showing the diff format and testing that paths are sorted:
assert shallow_diff(mda, mdb) == [
['-', 'deleted'],
[':', 'mix', {
"add": 42,
"mod": 37,
"unchanged": 123
}],
[':', 'modparent', {
"mod": 22
}],
['+', 'added', 7],
]
assert deep_diff(mda, mdb) == [
['-', 'deleted'],
['!', 'mix', [['-', 'del'], [':', 'mod', 37], ['+', 'add', 42]]],
['!', 'modparent', [[':', 'mod', 22]]],
['+', 'added', 7],
]
def test_diff_and_patch():
# Note: check_symmetric_diff_and_patch handles (a,b) and (b,a) for both
# shallow and deep diffs, simplifying the number of cases to cover in here.
# Empty
mda = {}
mdb = {}
check_symmetric_diff_and_patch(mda, mdb)
# One-sided content/empty
mda = {"a": 1}
mdb = {}
check_symmetric_diff_and_patch(mda, mdb)
# One-sided content/empty multilevel
mda = {"a": 1, "b": {"ba": 21}}
mdb = {}
check_symmetric_diff_and_patch(mda, mdb)
# One-sided content/empty multilevel
mda = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
mdb = {}
check_symmetric_diff_and_patch(mda, mdb)
# Partial delete
mda = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
mdb = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31}}
check_symmetric_diff_and_patch(mda, mdb)
mda = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
mdb = {"b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
check_symmetric_diff_and_patch(mda, mdb)
mda = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
mdb = {"b": {"ba": 21}, "c": {"cb": 32}}
check_symmetric_diff_and_patch(mda, mdb)
# One-level modification
mda = {"a": 1}
mdb = {"a": 10}
check_symmetric_diff_and_patch(mda, mdb)
# Two-level modification
mda = {"a": 1, "b": {"ba": 21}}
mdb = {"a": 10, "b": {"ba": 210}}
check_symmetric_diff_and_patch(mda, mdb)
mda = {"a": 1, "b": {"ba": 21}}
mdb = {"a": 1, "b": {"ba": 210}}
check_symmetric_diff_and_patch(mda, mdb)
# Multilevel modification
mda = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
mdb = {"a": 10, "b": {"ba": 210}, "c": {"ca": 310, "cb": 320}}
check_symmetric_diff_and_patch(mda, mdb)
mda = {"a": 1, "b": {"ba": 21}, "c": {"ca": 31, "cb": 32}}
mdb = {"a": 1, "b": {"ba": 210}, "c": {"ca": 310, "cb": 32}}
check_symmetric_diff_and_patch(mda, mdb)
# Multilevel mix of delete, add, modify
mda = {"deleted": 1, "modparent": {"mod": 21}, "mix": {"del": 31, "mod": 32, "unchanged": 123}}
mdb = {"added": 7, "modparent": {"mod": 22}, "mix": {"add": 42, "mod": 37, "unchanged": 123}}
check_symmetric_diff_and_patch(mda, mdb)
# A more explicit assert showing the diff format and testing that paths are sorted:
assert shallow_diff(mda, mdb) == [
['-', 'deleted'],
[':', 'mix', {"add": 42, "mod": 37, "unchanged": 123}],
[':', 'modparent', {"mod": 22}],
['+', 'added', 7],
]
assert deep_diff(mda, mdb) == [
['-', 'deleted'],
['!', 'mix', [
['-', 'del'],
[':', 'mod', 37],
['+', 'add', 42]
]],
['!', 'modparent', [
[':', 'mod', 22]
]],
['+', 'added', 7],
]