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