circuitpython/tests/extmod/ure_error.py

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# test errors in regex
try:
import ure as re
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except ImportError:
try:
import re
except ImportError:
print("SKIP")
raise SystemExit
def test_re(r):
try:
re.compile(r)
print("OK")
except: # uPy and CPy use different errors, so just ignore the type
print("Error")
test_re(r'?')
test_re(r'*')
test_re(r'+')
test_re(r')')
test_re(r'[')
test_re(r'([')
test_re(r'([)')
test_re(r'[a\]')