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tournament_test.py
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tournament_test.py
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#!/usr/bin/env python
#
# Test cases for tournament.py
# These tests are not exhaustive, but they should cover the majority of cases.
#
# If you do add any of the extra credit options, be sure to add/modify these test cases
# as appropriate to account for your module's added functionality.
from tournament import *
def testCount():
"""
Test for initial player count,
player count after 1 and 2 players registered,
player count after players deleted.
"""
deleteMatches()
deletePlayers()
c = countPlayers()
if c == '0':
raise TypeError(
"countPlayers should return numeric zero, not string '0'.")
if c != 0:
raise ValueError("After deletion, countPlayers should return zero.")
print "1. countPlayers() returns 0 after initial deletePlayers() execution."
registerPlayer("Chandra Nalaar")
c = countPlayers()
if c != 1:
raise ValueError(
"After one player registers, countPlayers() should be 1. Got {c}".format(c=c))
print "2. countPlayers() returns 1 after one player is registered."
registerPlayer("Jace Beleren")
c = countPlayers()
if c != 2:
raise ValueError(
"After two players register, countPlayers() should be 2. Got {c}".format(c=c))
print "3. countPlayers() returns 2 after two players are registered."
deletePlayers()
c = countPlayers()
if c != 0:
raise ValueError(
"After deletion, countPlayers should return zero.")
print "4. countPlayers() returns zero after registered players are deleted.\n5. Player records successfully deleted."
def testStandingsBeforeMatches():
"""
Test to ensure players are properly represented in standings prior
to any matches being reported.
"""
deleteMatches()
deletePlayers()
registerPlayer("Melpomene Murray")
registerPlayer("Randy Schwartz")
standings = playerStandings()
if len(standings) < 2:
raise ValueError("Players should appear in playerStandings even before "
"they have played any matches.")
elif len(standings) > 2:
raise ValueError("Only registered players should appear in standings.")
if len(standings[0]) != 4:
raise ValueError("Each playerStandings row should have four columns.")
[(id1, name1, wins1, matches1), (id2, name2, wins2, matches2)] = standings
if matches1 != 0 or matches2 != 0 or wins1 != 0 or wins2 != 0:
raise ValueError(
"Newly registered players should have no matches or wins.")
if set([name1, name2]) != set(["Melpomene Murray", "Randy Schwartz"]):
raise ValueError("Registered players' names should appear in standings, "
"even if they have no matches played.")
print "6. Newly registered players appear in the standings with no matches."
def testReportMatches():
"""
Test that matches are reported properly.
Test to confirm matches are deleted properly.
"""
deleteMatches()
deletePlayers()
registerPlayer("Bruno Walton")
registerPlayer("Boots O'Neal")
registerPlayer("Cathy Burton")
registerPlayer("Diane Grant")
standings = playerStandings()
[id1, id2, id3, id4] = [row[0] for row in standings]
reportMatch(id1, id2)
reportMatch(id3, id4)
standings = playerStandings()
for (i, n, w, m) in standings:
if m != 1:
raise ValueError("Each player should have one match recorded.")
if i in (id1, id3) and w != 1:
raise ValueError("Each match winner should have one win recorded.")
elif i in (id2, id4) and w != 0:
raise ValueError("Each match loser should have zero wins recorded.")
print "7. After a match, players have updated standings."
deleteMatches()
standings = playerStandings()
if len(standings) != 4:
raise ValueError("Match deletion should not change number of players in standings.")
for (i, n, w, m) in standings:
if m != 0:
raise ValueError("After deleting matches, players should have zero matches recorded.")
if w != 0:
raise ValueError("After deleting matches, players should have zero wins recorded.")
print "8. After match deletion, player standings are properly reset.\n9. Matches are properly deleted."
def testPairings():
"""
Test that pairings are generated properly both before and after match reporting.
"""
deleteMatches()
deletePlayers()
registerPlayer("Twilight Sparkle")
registerPlayer("Fluttershy")
registerPlayer("Applejack")
registerPlayer("Pinkie Pie")
registerPlayer("Rarity")
registerPlayer("Rainbow Dash")
registerPlayer("Princess Celestia")
registerPlayer("Princess Luna")
standings = playerStandings()
[id1, id2, id3, id4, id5, id6, id7, id8] = [row[0] for row in standings]
pairings = swissPairings()
if len(pairings) != 4:
raise ValueError(
"For eight players, swissPairings should return 4 pairs. Got {pairs}".format(pairs=len(pairings)))
reportMatch(id1, id2)
reportMatch(id3, id4)
reportMatch(id5, id6)
reportMatch(id7, id8)
pairings = swissPairings()
if len(pairings) != 4:
raise ValueError(
"For eight players, swissPairings should return 4 pairs. Got {pairs}".format(pairs=len(pairings)))
[(pid1, pname1, pid2, pname2), (pid3, pname3, pid4, pname4), (pid5, pname5, pid6, pname6), (pid7, pname7, pid8, pname8)] = pairings
possible_pairs = set([frozenset([id1, id3]), frozenset([id1, id5]),
frozenset([id1, id7]), frozenset([id3, id5]),
frozenset([id3, id7]), frozenset([id5, id7]),
frozenset([id2, id4]), frozenset([id2, id6]),
frozenset([id2, id8]), frozenset([id4, id6]),
frozenset([id4, id8]), frozenset([id6, id8])
])
actual_pairs = set([frozenset([pid1, pid2]), frozenset([pid3, pid4]), frozenset([pid5, pid6]), frozenset([pid7, pid8])])
for pair in actual_pairs:
if pair not in possible_pairs:
raise ValueError(
"After one match, players with one win should be paired.")
print "10. After one match, players with one win are properly paired."
if __name__ == '__main__':
testCount()
testStandingsBeforeMatches()
testReportMatches()
testPairings()
print "Success! All tests pass!"