def problem4():
if check_doctest('analyze_tweet_sentiment', trends):
return True
# Change the representation of sentiments to validate abstraction barrier.
original_make_sentiment = trends.make_sentiment
original_sentiment_value = trends.sentiment_value
original_has_sentiment = trends.has_sentiment
trends.make_sentiment = lambda s: lambda : s
trends.sentiment_value = lambda s: s()
trends.has_sentiment = lambda s: s() != None
sentiment_tests = (
((trends.make_tweet('Help, I\'m trapped in an autograder factory and I can\'t get out!'.lower(), None, 0, 0),), -0.416666667),
((trends.make_tweet('The thing that I love about hating things that I love is that I hate loving that I hate doing it.'.lower(), None, 0, 0),), 0.075),
)
no_sentiment_tests = (
((trends.make_tweet('Peter Piper picked a peck of pickled peppers'.lower(), None, 0, 0),), None),
)
def analyze(tweet):
return trends.sentiment_value(trends.analyze_tweet_sentiment(tweet))
if check_func(analyze, sentiment_tests, comp=comp_float):
return True
if check_func(analyze, no_sentiment_tests):
return True
trends.make_sentiment = original_make_sentiment
trends.sentiment_value = original_sentiment_value
trends.has_sentiment = original_has_sentiment
def problem7():
if check_doctest('group_tweets_by_state', trends):
return True
def test_groups():
tweets = pirate_tweets(trends.make_tweet)
expected = {
'MI': [tweets[0], tweets[4]],
'MT': [tweets[1], tweets[5]],
'ND': [tweets[2], tweets[6]],
'FL': [tweets[3], tweets[7]],
}
tests = ( ((tweets,), expected), )
if check_func(trends.group_tweets_by_state, tests, comp=comp_group):
return True
if test_groups():
return True
print("Testing abstraction barriers.")
try:
trends.swap_tweet_representation()
if test_groups():
return True
finally:
trends.swap_tweet_representation()
def problem1(grades):
"""Test tweet abstract data type."""
if check_doctest('make_tweet', trends):
return True
if check_doctest('make_tweet_fn', trends):
return True
expected_texts = [
'hello, world! !dlrow ,olleh',
'i mean what person wouldn\'t? it\'s john stamos!',
"ph'nglui mglw'nafh cthulhu r'lyeh wgah'nagl fhtagn",
'kfdafj. afjdsal.jfdlsafj. fjd jksa',
'/never/look up.when dragons!fly overhead.',
'jeepers, what fools these mortals be!',
]
expected_dates = [datetime(2010, 1, 2, k, 4, 5) for k in range(1, 7)]
expected_locations = [(38, -120 + k) for k in range(6)]
import geo
def location_tuple(tweet_location):
def location_tuple(tweet):
location = tweet_location(tweet)
return (geo.latitude(location), geo.longitude(location))
return location_tuple
tweets_as_dicts = tricky_tweets(trends.make_tweet)
if check_func(trends.tweet_text, zip(tweets_as_dicts, expected_texts)):
return True
elif check_func(trends.tweet_time, zip(tweets_as_dicts, expected_dates)):
return True
elif check_func(location_tuple(trends.tweet_location),
zip(tweets_as_dicts, expected_locations)):
return True
tweets_as_fns = tricky_tweets(trends.make_tweet_fn)
if check_func(trends.tweet_text_fn, zip(tweets_as_fns, expected_texts)):
return True
elif check_func(trends.tweet_time_fn, zip(tweets_as_fns, expected_dates)):
return True
elif check_func(location_tuple(trends.tweet_location_fn),
zip(tweets_as_fns, expected_locations)):
return True
def problem3():
if check_doctest('make_sentiment', trends):
return True
if check_doctest('get_word_sentiment', trends):
return True
has_sentiment_tests = (
((trends.make_sentiment(0.3),), True),
((trends.make_sentiment(None),), False),
((trends.make_sentiment(-1),), True),
)
sentiment_value_tests = (
((trends.make_sentiment(-0.3),), -0.3),
((trends.make_sentiment(1),), 1),
((trends.make_sentiment(-1),), -1),
)
if check_func(trends.has_sentiment, has_sentiment_tests):
return True
elif check_func(trends.sentiment_value, sentiment_value_tests):
return True
def problem8(grades):
"""Test swap_strategy."""
if check_doctest('swap_strategy', hog):
return True
old_bacon = hog.BACON_MARGIN, hog.BASELINE_NUM_ROLLS
hog.BACON_MARGIN, hog.BASELINE_NUM_ROLLS = 5, 4
test_suite = [((12, 34), 0), # beneficial swap
((8, 9), 4), # harmful swap
((32, 43), 0), # lots of free bacon
((20, 32), 4)] # baseline
failed = check_func(hog.swap_strategy, test_suite)
hog.BACON_MARGIN, hog.BASELINE_NUM_ROLLS = old_bacon
return failed
def problem7(grades):
"""Test bacon_strategy."""
if check_doctest('bacon_strategy', hog):
return True
old_bacon = hog.BACON_MARGIN, hog.BASELINE_NUM_ROLLS
hog.BACON_MARGIN, hog.BASELINE_NUM_ROLLS = 5, 4
test_suite = [((32, 34), 0),
((20, 23), 4),
((20, 4), 0),
((20, 99), 0)]
failed = check_func(hog.bacon_strategy, test_suite)
hog.BACON_MARGIN, hog.BASELINE_NUM_ROLLS = old_bacon
return failed
def problem5(grades):
"""Test make_averaged."""
# hundred_dice cycle from 1 to 99 repeatedly
hundred_range = range(1, 100)
hundred_dice = make_test_dice(*hundred_range)
averaged_hundred_dice = test_eval(hog.make_averaged,
(hundred_dice, 5 * len(hundred_range)))
correct_average = sum(range(1, 100)) / len(hundred_range)
test_suite = [((), correct_average)] * 2
if check_doctest('make_averaged', hog):
return True
if check_func(averaged_hundred_dice, test_suite):
return True
def problem2():
if check_doctest('groupby', trends):
return True
if check_doctest('extract_words', trends):
return True
import string
tests = [
('You! Shall! Not!...Pass!', ['You', 'Shall', 'Not', 'Pass'],),
('This.is`separated!by@only#non$letter%characters^so&you*need(to)use-white+listing{instead}of\\black/listing:or"else<you\'ll>get~the wrong answer',
['This', 'is', 'separated', 'by', 'only', 'non', 'letter', 'characters', 'so', 'you', 'need', 'to', 'use', 'white', 'listing', 'instead', 'of', 'black', 'listing', 'or', 'else', 'you', 'll', 'get', 'the', 'wrong', 'answer']),
['', []], # This test is constructed below.
]
pathological_test = tests[-1]
for i in range(32,128):
c = chr(i)
if (c in string.ascii_letters or not c in string.printable): continue
pathological_test[0] += chr(i) + 'a'
pathological_test[1].append('a')
if check_func(trends.extract_words, tests):
print('Failed test(s) in extract_words.')
return True
def problem6(grades):
"""Test find_state_center."""
if check_doctest('find_state_center', trends):
return True
from geo import make_position as mp
import geo
def center_as_tuple(state):
center = trends.find_state_center(state)
return (geo.latitude(center), geo.longitude(center))
def make_tests():
return (
(([[mp(49, -17), mp(83, -18), mp(-33, -54), mp(27, 82), mp(15, -97),
mp(10, 97), mp(-37, -68), mp(26, 66), mp(49, -17)],
[mp(-98, 55), mp(84, 27), mp(-81, 4), mp(94, -25), mp(-26, 42), mp(-98, 55)],
[mp(60, -90), mp(59.5117046837911, -96.9829483518188), mp(59.3721917363029, -98.9780764523384),
mp(60.2790258949765, -86.0097437989607), mp(60.4185388424647, -84.014615698441), mp(60, -90)],
],), (18.65154401154401, -14.746118326118323)),
(([[mp(-53, 68), mp(-52, -23), mp(-74, -65), mp(-44, 46), mp(-61, 68), mp(-14, 12), mp(33, 58), mp(-53, 68)],
[mp(-30, -70), mp(-91, 40), mp(46, -93), mp(-4, -35), mp(29, 28), mp(-30,-70)],
[mp(90, 50), mp(88, 46.5358983848623), mp(83.5, 38.7416697508023), mp(86, 43.0717967697245),
mp(87, 44.8038475772934), mp(84.5, 40.4737205583712), mp(90, 50)],
],), (-29.056049940231105, 26.2892371718245)),
)
tests = make_tests()
if check_func(center_as_tuple, tests, comp=comp_tuple):
return True
print("Testing abstraction barriers.")
try:
original_geo = trends.make_position, trends.latitude, trends.longitude
trends.make_position = geo.make_position = lambda lat,long: lambda z: z*lat+(1-z)*long
trends.latitude = geo.latitude = lambda p: p(1)
trends.longitude = geo.longitude = lambda p: p(0)
mp = geo.make_position
tests = make_tests()
if check_func(center_as_tuple, tests, comp=comp_tuple):
return True
finally:
geo.make_position = trends.make_position = original_geo[0]
geo.latitude = trends.latitude = original_geo[1]
geo.longitude = trends.longitude = original_geo[2]
def problem5(grades):
"""Test find_centroid."""
if check_doctest('find_centroid', trends):
return True
from geo import make_position as mp
import geo
def make_tests():
return (
([mp(49, -17), mp(83, -18), mp(-33, -54), mp(27, 82), mp(15, -97),
mp(10, 97), mp(-37, -68), mp(26, 66), mp(49, -17)], (24.031793687451884, -10.597882986913008, 4330.0)),
([mp(-98, 55), mp(84, 27), mp(-81, 4), mp(94, -25), mp(-26, 42), mp(-98, 55)],
(2.5294117647058822, -27.17647058823529, 1445.0)),
([mp(-53, 68), mp(-52, -23), mp(-74, -65), mp(-44, 46), mp(-61, 68), mp(-14, 12), mp(33, 58), mp(-53, 68)],
(-7.561094365870623, 59.29600432800061, 2156.5)),
([mp(60, -90), mp(59.5117046837911, -96.9829483518188), mp(59.3721917363029, -98.9780764523384),
mp(60.2790258949765, -86.0097437989607), mp(60.4185388424647, -84.014615698441), mp(60, -90)], (60, -90, 0)),
([mp(90, 50), mp(88, 46.5358983848623), mp(83.5, 38.7416697508023), mp(86, 43.0717967697245),
mp(87, 44.8038475772934), mp(84.5, 40.4737205583712), mp(90, 50)], (90, 50, 0)),
)
tests = make_tests()
if check_func(trends.find_centroid, tests, comp=comp_tuple):
return True
print("Testing abstraction barriers.")
try:
original_geo = trends.make_position, trends.latitude, trends.longitude
trends.make_position = geo.make_position = lambda lat,long: lambda z: z*lat+(1-z)*long
trends.latitude = geo.latitude = lambda p: p(1)
trends.longitude = geo.longitude = lambda p: p(0)
mp = geo.make_position
tests = make_tests()
if check_func(trends.find_centroid, tests, comp=comp_tuple):
return True
finally:
geo.make_position = trends.make_position = original_geo[0]
geo.latitude = trends.latitude = original_geo[1]
geo.longitude = trends.longitude = original_geo[2]
def problem3(grades):
"""Test select_dice."""
return check_doctest('select_dice', hog)
def problem6(grades):
"""Test max_scoring_num_rolls."""
return check_doctest('max_scoring_num_rolls', hog)
def problem_3(grades):
return check_doctest('apply_primitive', scheme)
def problem3(grades):
"""Test select_dice."""
return check_doctest('select_dice', hog)
def problem6(grades):
"""Test max_scoring_num_rolls."""
return check_doctest('max_scoring_num_rolls', hog)
def problem_3(grades):
return check_doctest('apply_primitive', scheme)