jinx/python-uncompyle6
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added examples for known failures

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DanielBradburn
2016-08-14 20:44:23 +02:00
parent 7fba24198f
commit 2bd850f297
1 changed files with 18 additions and 7 deletions
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25
pytest/test_fstring.py
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@@ -1,4 +1,5 @@
# test
import pytest
import hypothesis
from hypothesis import strategies as st
# uncompyle6
@@ -84,8 +85,8 @@ def fstrings(draw):
:return: A valid f-string.
"""
prefix = draw(st.sampled_from('fF'))
raw = draw(st.sampled_from(list('rR') + ['']))
prefix = draw(st.sampled_from('f'))
raw = draw(st.sampled_from(list('r') + ['']))
integer_strategy = st.integers(min_value=0, max_value=3)
expression_count = draw(integer_strategy)
content = []
@@ -93,10 +94,10 @@ def fstrings(draw):
expression = draw(expressions())
#conversion = draw(st.sampled_from(('', '!s', '!r', '!a',)))
#specifier = draw(st.sampled_from(format_specifiers(), st.just('')))
content.append(f'{{{expression}}}')
content.append('{{{}}}'.format(expression))
content = ''.join(content)
return f"{prefix}{raw}'{content}'"
return "{}{}'{}'".format(prefix, raw, content)
@hypothesis.given(format_specifiers())
@@ -109,10 +110,20 @@ def test_format_specifiers(format_specifier):
raise
@pytest.mark.skipif(PYTHON_VERSION < 3.6, reason="requires python3.6")
@hypothesis.given(fstrings())
@hypothesis.example("f'{abc}'") # BUG: strings with a single expression do not uncompyle correctly.
@hypothesis.example("fr'{abc}{xyz}'") # BUG: no support for raw f strings.
@hypothesis.example("f'{len(items)}{abc}'") # BUG: more complicated expressions than LOAD_NAME don't work
def test_uncompyle_fstring(fstring):
"""Verify uncompyling fstring bytecode"""
hypothesis.assume('{' in fstring) # ignore fstring with no expressions
expr = f'{fstring}\n'
# ignore fstring with no expressions an fsring with
# no expressions just gets compiled to a normal string.
hypothesis.assume('{' in fstring)
expr = fstring + '\n'
code = compile(expr, '<string>', 'single')
assert deparse_code(PYTHON_VERSION, code, compile_mode='single').text == expr
deparsed = deparse_code(PYTHON_VERSION, code, compile_mode='single')
assert deparsed.text == expr