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58 lines
1.5 KiB
Python
58 lines
1.5 KiB
Python
from test.test_support import verify, verbose, TestFailed, run_unittest
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import sys
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import dis
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import StringIO
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# Minimal tests for dis module
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import unittest
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# placement is crucial!!! move the start of _f and you have to adjust the
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# line numbers in dis_f
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def _f(a):
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print a
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return 1
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dis_f = """\
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13 0 LOAD_FAST 0 (a)
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3 PRINT_ITEM
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4 PRINT_NEWLINE
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14 5 LOAD_CONST 1 (1)
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8 RETURN_VALUE
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9 LOAD_CONST 0 (None)
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12 RETURN_VALUE
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"""
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class DisTests(unittest.TestCase):
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def test_opmap(self):
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self.assertEqual(dis.opmap["STOP_CODE"], 0)
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self.assertEqual(dis.opmap["LOAD_CONST"] in dis.hasconst, True)
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self.assertEqual(dis.opmap["STORE_NAME"] in dis.hasname, True)
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def test_opname(self):
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self.assertEqual(dis.opname[dis.opmap["LOAD_FAST"]], "LOAD_FAST")
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def test_boundaries(self):
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self.assertEqual(dis.opmap["EXTENDED_ARG"], dis.EXTENDED_ARG)
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self.assertEqual(dis.opmap["STORE_NAME"], dis.HAVE_ARGUMENT)
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def test_dis(self):
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s = StringIO.StringIO()
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save_stdout = sys.stdout
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sys.stdout = s
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dis.dis(_f)
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sys.stdout = save_stdout
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got = s.getvalue()
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# Trim trailing blanks (if any).
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lines = got.split('\n')
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lines = [line.rstrip() for line in lines]
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got = '\n'.join(lines)
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self.assertEqual(dis_f, got)
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def test_main():
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run_unittest(DisTests)
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if __name__ == "__main__":
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test_main()
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