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tests: Provide more helpful assert_equal errors

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In the functional tests, we often compare dicts with assert_equal, but the
output makes it very hard to tell exactly which entry in the dicts don't
match when there are a lot of entries and only minor differences. Change
the output to make it clearer.
This commit is contained in:
Anthony Towns 2023-02-21 02:57:16 +10:00
parent 2649e655b9
commit a3badf75f6
1 changed files with 17 additions and 0 deletions
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17
test/functional/test_framework/util.py
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@ -52,7 +52,24 @@ def assert_fee_amount(fee, tx_size, feerate_BTC_kvB):
raise AssertionError("Fee of %s BTC too high! (Should be %s BTC)" % (str(fee), str(target_fee)))
def summarise_dict_differences(thing1, thing2):
if not isinstance(thing1, dict) or not isinstance(thing2, dict):
return thing1, thing2
d1, d2 = {}, {}
for k in sorted(thing1.keys()):
if k not in thing2:
d1[k] = thing1[k]
elif thing1[k] != thing2[k]:
d1[k], d2[k] = summarise_dict_differences(thing1[k], thing2[k])
for k in sorted(thing2.keys()):
if k not in thing1:
d2[k] = thing2[k]
return d1, d2
def assert_equal(thing1, thing2, *args):
if thing1 != thing2 and not args and isinstance(thing1, dict) and isinstance(thing2, dict):
d1,d2 = summarise_dict_differences(thing1, thing2)
raise AssertionError("not(%s == %s)\n in particular not(%s == %s)" % (thing1, thing2, d1, d2))
if thing1 != thing2 or any(thing1 != arg for arg in args):
raise AssertionError("not(%s)" % " == ".join(str(arg) for arg in (thing1, thing2) + args))