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43 lines
974 B
Python
43 lines
974 B
Python
from test_support import verbose
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class XReader:
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def __init__(self):
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self.count = 5
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def readlines(self, sizehint = None):
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self.count = self.count - 1
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return map(lambda x: "%d\n" % x, range(self.count))
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class Null: pass
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import xreadlines
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lineno = 0
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try:
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xreadlines.xreadlines(Null())[0]
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except AttributeError, detail:
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print "AttributeError (expected)"
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else:
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print "Did not throw attribute error"
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try:
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xreadlines.xreadlines(XReader)[0]
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except TypeError, detail:
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print "TypeError (expected)"
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else:
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print "Did not throw type error"
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try:
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xreadlines.xreadlines(XReader())[1]
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except RuntimeError, detail:
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print "RuntimeError (expected):", detail
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else:
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print "Did not throw runtime error"
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xresult = ['0\n', '1\n', '2\n', '3\n', '0\n', '1\n', '2\n', '0\n', '1\n', '0\n']
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for line in xreadlines.xreadlines(XReader()):
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if line != xresult[lineno]:
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print "line %d differs" % lineno
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lineno += 1
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