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2.2 KiB

# functional pytests
from email_pruner import dups, randstring, prune
# pytest uses some under-the-covers magic to make fixtures available to
# test methods. Check the "" for the source of the "emails"
# argument you see in these tests.
def test_email_creation(emails):
# spawn will return double the number requested,
# because it generates randomized duplicates of
# every email created. So, our test should be for
# double the amount requested.
assert len(emails) == 200
def test_dup_list_creation(emails):
# the dups function copies out the duplicates
# into a fresh list, giving us the freedom to
# do what we like with them. Since 50% was the
# requirement, this means that the dup list
# should be just as long as the pruned list
dup_list, prune_list = dups(emails)
assert len(dup_list) == 100
assert len(dup_list) == len(prune_list)
def test_compare_dups_and_pruned(emails):
# the original spec says to leave the two lists unsorted
# so name-for-name comparison should fail, because the
# bifurcation process is going to create two disparately
# ordered lists. So, here I include two assertions to
# first confirm that the unordered lists are mismatched,
# and second, confirm that the sorted lists can be shown
# to be identical in content.
dup_list, prune_list = dups(emails)
assert not dup_list == prune_list
assert dup_list.sort() == prune_list.sort()
def test_alternative_pruner(emails):
# Python dictionaries provide a MUCH cleaner and simpler
# technique for pruning duplicates from a list. However,
# it discards the duplicates, rather than giving them
# back to you. So, I provide this here just for illustration.
# We want both lists, so that I can prove that my code worked.
pruned = prune(emails)
assert len(pruned) == 100
def test_random_string_contents():
rstring = randstring() # default length = 64, alphas only.
not_allowed = "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~0123456789"
assert not rstring.__contains__(not_allowed)
def test_random_string_len():
rstring = randstring() # default length
assert len(rstring) == 64