"""Test cases for traceback module"""
import unittest
from test_support import run_unittest
import traceback
class TracebackCases(unittest.TestCase):
# For now, a very minimal set of tests. I want to be sure that
# formatting of SyntaxErrors works based on changes for 2.1.
def get_exception_format(self, func, exc):
try:
func()
except exc, value:
return traceback.format_exception_only(exc, value)
else:
raise ValueError, "call did not raise exception"
def syntax_error_with_caret(self):
compile("def fact(x):\n\treturn x!\n", "?", "exec")
def syntax_error_without_caret(self):
# XXX why doesn't compile raise the same traceback?
import nocaret
def test_caret(self):
err = self.get_exception_format(self.syntax_error_with_caret,
SyntaxError)
self.assert_(len(err) == 4)
self.assert_("^" in err[2]) # third line has caret
self.assert_(err[1].strip() == "return x!")
def test_nocaret(self):
err = self.get_exception_format(self.syntax_error_without_caret,
SyntaxError)
self.assert_(len(err) == 3)
self.assert_(err[1].strip() == "[x for x in x] = x")
run_unittest(TracebackCases)
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