def test_no_output(self):
# Based on code from user1200039 http://stackoverflow.com/questions/5136611/capture-stdout-from-a-script-in-python
import sys
from io import StringIO
from LabC2 import sort_hand
from GameUno import GameUno, RED, BLUE, WILD4
print("""
Most commonly your program fails this test if you use a print statement
in your sort_hand function. You must not print anything in this function.
Instead, you should return the location so that the test code can access it.
Wrong:
def add(a, b):
""\" Add a and b.""\"
print(a+b)
Right:
def add(a, b):
""\" Return the sum of a and b.""\"
return a+b
""")
oldout = sys.stdout
buf=StringIO()
game=GameUno()
moves=[game.card(3,RED), game.card(7,BLUE), game.card(WILD4)]
try:
sys.stdout=buf
sort_hand( moves)
finally:
sys.stdout=oldout
self.assertEqual(len(buf.getvalue()),0)
def test_sort_mono20(self):
print("""
This happens when you do not correctly sort_hand the last item in the list.
""")
from LabC2 import sort_hand
from GameUno import GameUno, RED, GREEN, BLUE, YELLOW, \
REVERSE, SKIP, DRAW2, WILD, WILD4
game=GameUno()
moves=[game.card(DRAW2,YELLOW), \
game.card(SKIP,RED), \
game.card(SKIP,YELLOW), \
game.card(REVERSE,GREEN), \
game.card(SKIP,BLUE), \
game.card(DRAW2,BLUE), \
game.card(REVERSE,YELLOW), \
game.card(SKIP,GREEN), \
game.card(REVERSE,RED), \
game.card(REVERSE,BLUE), \
game.card(DRAW2,GREEN), \
game.card(DRAW2,RED)]
self.assertEqual(sort_hand(moves), None)
self.assertEqual(moves, [game.card(DRAW2,BLUE), \
game.card(REVERSE,BLUE), \
game.card(SKIP,BLUE), \
game.card(DRAW2,GREEN), \
game.card(REVERSE,GREEN), \
game.card(SKIP,GREEN), \
game.card(DRAW2,RED), \
game.card(REVERSE,RED), \
game.card(SKIP,RED), \
game.card(DRAW2,YELLOW), \
game.card(REVERSE,YELLOW), \
game.card(SKIP,YELLOW)])
def test_sort_hand_empty(self):
print("""
This happens when you do not correctly handle empty lists.
""")
from LabC2 import sort_hand
from GameUno import GameUno, RED, GREEN, BLUE, YELLOW, \
REVERSE, SKIP, DRAW2, WILD, WILD4
game=GameUno()
moves=[]
self.assertEqual(sort_hand( moves),None)
self.assertEqual(len( moves),0)
def test_sort_hand_single(self):
print("""
This happens when you do not correctly handle lists with only a single entry.
""")
from LabC2 import sort_hand
from GameUno import GameUno, RED, GREEN, BLUE, YELLOW, \
REVERSE, SKIP, DRAW2, WILD, WILD4
game=GameUno()
moves=[game.card(10,BLUE)]
self.assertEqual(sort_hand(moves),None)
self.assertEqual(moves, [game.card(10,BLUE)])
def test_sort_hand_monocolor(self):
print("""
This happens when you do not correctly return the first location of a value
that is in the list multiple times.
""")
from LabC2 import sort_hand
from GameUno import GameUno, RED, GREEN, BLUE, YELLOW, \
REVERSE, SKIP, DRAW2, WILD, WILD4
game=GameUno()
moves=[game.card(2,BLUE), game.card(4,BLUE), game.card(DRAW2,BLUE),\
game.card(10,BLUE), game.card(REVERSE,BLUE), game.card(0,BLUE)]
self.assertEqual(sort_hand(moves), None)
self.assertEqual(moves, [game.card(0,BLUE), game.card(2,BLUE), \
game.card(4,BLUE), game.card(10,BLUE), game.card(DRAW2,BLUE), \
game.card(REVERSE,BLUE)])