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201 lines
3.7 KiB
Python
201 lines
3.7 KiB
Python
# Check every path through every method of UserList
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from UserList import UserList
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from test_support import TestFailed
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# Use check instead of assert so -O doesn't render the
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# test useless.
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def check(predicate, msg):
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if not predicate:
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raise TestFailed(msg + " failed")
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l0 = []
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l1 = [0]
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l2 = [0, 1]
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# Test constructors
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u = UserList()
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u0 = UserList(l0)
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u1 = UserList(l1)
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u2 = UserList(l2)
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uu = UserList(u)
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uu0 = UserList(u0)
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uu1 = UserList(u1)
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uu2 = UserList(u2)
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v = UserList(tuple(u))
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class OtherList:
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def __init__(self, initlist):
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self.__data = initlist
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def __len__(self):
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return len(self.__data)
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def __getitem__(self, i):
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return self.__data[i]
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v0 = UserList(OtherList(u0))
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vv = UserList("this is also a sequence")
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# Test __repr__
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check(str(u0) == str(l0), "str(u0) == str(l0)")
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check(repr(u1) == repr(l1), "repr(u1) == repr(l1)")
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check(`u2` == `l2`, "`u2` == `l2`")
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# Test __cmp__ and __len__
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def mycmp(a, b):
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r = cmp(a, b)
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if r < 0: return -1
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if r > 0: return 1
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return r
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all = [l0, l1, l2, u, u0, u1, u2, uu, uu0, uu1, uu2]
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for a in all:
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for b in all:
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check(mycmp(a, b) == mycmp(len(a), len(b)),
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"mycmp(a, b) == mycmp(len(a), len(b))")
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# Test __getitem__
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for i in range(len(u2)):
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check(u2[i] == i, "u2[i] == i")
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# Test __setitem__
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uu2[0] = 0
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uu2[1] = 100
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try:
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uu2[2] = 200
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except IndexError:
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pass
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else:
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raise TestFailed("uu2[2] shouldn't be assignable")
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# Test __delitem__
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del uu2[1]
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del uu2[0]
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try:
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del uu2[0]
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except IndexError:
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pass
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else:
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raise TestFailed("uu2[0] shouldn't be deletable")
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# Test __getslice__
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for i in range(-3, 4):
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check(u2[:i] == l2[:i], "u2[:i] == l2[:i]")
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check(u2[i:] == l2[i:], "u2[i:] == l2[i:]")
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for j in range(-3, 4):
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check(u2[i:j] == l2[i:j], "u2[i:j] == l2[i:j]")
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# Test __setslice__
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for i in range(-3, 4):
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u2[:i] = l2[:i]
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check(u2 == l2, "u2 == l2")
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u2[i:] = l2[i:]
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check(u2 == l2, "u2 == l2")
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for j in range(-3, 4):
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u2[i:j] = l2[i:j]
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check(u2 == l2, "u2 == l2")
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uu2 = u2[:]
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uu2[:0] = [-2, -1]
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check(uu2 == [-2, -1, 0, 1], "uu2 == [-2, -1, 0, 1]")
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uu2[0:] = []
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check(uu2 == [], "uu2 == []")
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# Test __contains__
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for i in u2:
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check(i in u2, "i in u2")
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for i in min(u2)-1, max(u2)+1:
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check(i not in u2, "i not in u2")
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# Test __delslice__
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uu2 = u2[:]
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del uu2[1:2]
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del uu2[0:1]
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check(uu2 == [], "uu2 == []")
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uu2 = u2[:]
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del uu2[1:]
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del uu2[:1]
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check(uu2 == [], "uu2 == []")
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# Test __add__, __radd__, __mul__ and __rmul__
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check(u1 + [] == [] + u1 == u1, "u1 + [] == [] + u1 == u1")
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check(u1 + [1] == u2, "u1 + [1] == u2")
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check([-1] + u1 == [-1, 0], "[-1] + u1 == [-1, 0]")
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check(u2 == u2*1 == 1*u2, "u2 == u2*1 == 1*u2")
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check(u2+u2 == u2*2 == 2*u2, "u2+u2 == u2*2 == 2*u2")
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check(u2+u2+u2 == u2*3 == 3*u2, "u2+u2+u2 == u2*3 == 3*u2")
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# Test append
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u = u1[:]
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u.append(1)
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check(u == u2, "u == u2")
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# Test insert
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u = u2[:]
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u.insert(0, -1)
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check(u == [-1, 0, 1], "u == [-1, 0, 1]")
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# Test pop
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u = [-1] + u2
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u.pop()
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check(u == [-1, 0], "u == [-1, 0]")
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u.pop(0)
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check(u == [0], "u == [0]")
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# Test remove
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u = u2[:]
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u.remove(1)
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check(u == u1, "u == u1")
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# Test count
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u = u2*3
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check(u.count(0) == 3, "u.count(0) == 3")
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check(u.count(1) == 3, "u.count(1) == 3")
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check(u.count(2) == 0, "u.count(2) == 0")
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# Test index
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check(u2.index(0) == 0, "u2.index(0) == 0")
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check(u2.index(1) == 1, "u2.index(1) == 1")
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try:
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u2.index(2)
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except ValueError:
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pass
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else:
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raise TestFailed("expected ValueError")
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# Test reverse
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u = u2[:]
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u.reverse()
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check(u == [1, 0], "u == [1, 0]")
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u.reverse()
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check(u == u2, "u == u2")
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# Test sort
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u = UserList([1, 0])
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u.sort()
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check(u == u2, "u == u2")
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# Test extend
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u = u1[:]
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u.extend(u2)
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check(u == u1 + u2, "u == u1 + u2")
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