mirror of
https://github.com/thegeeklab/ansible-later.git
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447 lines
12 KiB
Python
447 lines
12 KiB
Python
import sys
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import textwrap
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from pyflakes import messages as m
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from pyflakes.checker import (
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DoctestScope,
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FunctionScope,
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ModuleScope,
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)
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from pyflakes.test.test_other import Test as TestOther
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from pyflakes.test.test_imports import Test as TestImports
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from pyflakes.test.test_undefined_names import Test as TestUndefinedNames
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from pyflakes.test.harness import TestCase, skip
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try:
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sys.pypy_version_info
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PYPY = True
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except AttributeError:
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PYPY = False
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class _DoctestMixin(object):
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withDoctest = True
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def doctestify(self, input):
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lines = []
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for line in textwrap.dedent(input).splitlines():
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if line.strip() == '':
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pass
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elif (line.startswith(' ') or
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line.startswith('except:') or
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line.startswith('except ') or
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line.startswith('finally:') or
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line.startswith('else:') or
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line.startswith('elif ') or
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(lines and lines[-1].startswith(('>>> @', '... @')))):
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line = "... %s" % line
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else:
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line = ">>> %s" % line
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lines.append(line)
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doctestificator = textwrap.dedent('''\
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def doctest_something():
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"""
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%s
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"""
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''')
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return doctestificator % "\n ".join(lines)
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def flakes(self, input, *args, **kw):
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return super(_DoctestMixin, self).flakes(self.doctestify(input), *args, **kw)
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class Test(TestCase):
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withDoctest = True
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def test_scope_class(self):
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"""Check that a doctest is given a DoctestScope."""
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checker = self.flakes("""
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m = None
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def doctest_stuff():
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'''
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>>> d = doctest_stuff()
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'''
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f = m
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return f
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""")
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scopes = checker.deadScopes
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module_scopes = [
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scope for scope in scopes if scope.__class__ is ModuleScope]
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doctest_scopes = [
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scope for scope in scopes if scope.__class__ is DoctestScope]
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function_scopes = [
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scope for scope in scopes if scope.__class__ is FunctionScope]
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self.assertEqual(len(module_scopes), 1)
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self.assertEqual(len(doctest_scopes), 1)
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module_scope = module_scopes[0]
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doctest_scope = doctest_scopes[0]
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self.assertIsInstance(doctest_scope, DoctestScope)
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self.assertIsInstance(doctest_scope, ModuleScope)
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self.assertNotIsInstance(doctest_scope, FunctionScope)
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self.assertNotIsInstance(module_scope, DoctestScope)
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self.assertIn('m', module_scope)
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self.assertIn('doctest_stuff', module_scope)
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self.assertIn('d', doctest_scope)
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self.assertEqual(len(function_scopes), 1)
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self.assertIn('f', function_scopes[0])
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def test_nested_doctest_ignored(self):
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"""Check that nested doctests are ignored."""
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checker = self.flakes("""
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m = None
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def doctest_stuff():
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'''
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>>> def function_in_doctest():
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... \"\"\"
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... >>> ignored_undefined_name
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... \"\"\"
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... df = m
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... return df
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...
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>>> function_in_doctest()
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'''
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f = m
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return f
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""")
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scopes = checker.deadScopes
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module_scopes = [
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scope for scope in scopes if scope.__class__ is ModuleScope]
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doctest_scopes = [
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scope for scope in scopes if scope.__class__ is DoctestScope]
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function_scopes = [
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scope for scope in scopes if scope.__class__ is FunctionScope]
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self.assertEqual(len(module_scopes), 1)
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self.assertEqual(len(doctest_scopes), 1)
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module_scope = module_scopes[0]
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doctest_scope = doctest_scopes[0]
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self.assertIn('m', module_scope)
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self.assertIn('doctest_stuff', module_scope)
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self.assertIn('function_in_doctest', doctest_scope)
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self.assertEqual(len(function_scopes), 2)
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self.assertIn('f', function_scopes[0])
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self.assertIn('df', function_scopes[1])
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def test_global_module_scope_pollution(self):
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"""Check that global in doctest does not pollute module scope."""
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checker = self.flakes("""
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def doctest_stuff():
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'''
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>>> def function_in_doctest():
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... global m
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... m = 50
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... df = 10
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... m = df
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...
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>>> function_in_doctest()
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'''
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f = 10
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return f
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""")
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scopes = checker.deadScopes
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module_scopes = [
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scope for scope in scopes if scope.__class__ is ModuleScope]
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doctest_scopes = [
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scope for scope in scopes if scope.__class__ is DoctestScope]
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function_scopes = [
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scope for scope in scopes if scope.__class__ is FunctionScope]
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self.assertEqual(len(module_scopes), 1)
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self.assertEqual(len(doctest_scopes), 1)
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module_scope = module_scopes[0]
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doctest_scope = doctest_scopes[0]
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self.assertIn('doctest_stuff', module_scope)
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self.assertIn('function_in_doctest', doctest_scope)
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self.assertEqual(len(function_scopes), 2)
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self.assertIn('f', function_scopes[0])
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self.assertIn('df', function_scopes[1])
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self.assertIn('m', function_scopes[1])
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self.assertNotIn('m', module_scope)
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def test_global_undefined(self):
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self.flakes("""
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global m
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def doctest_stuff():
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'''
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>>> m
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'''
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""", m.UndefinedName)
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def test_nested_class(self):
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"""Doctest within nested class are processed."""
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self.flakes("""
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class C:
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class D:
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'''
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>>> m
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'''
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def doctest_stuff(self):
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'''
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>>> m
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'''
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return 1
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""", m.UndefinedName, m.UndefinedName)
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def test_ignore_nested_function(self):
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"""Doctest module does not process doctest in nested functions."""
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# 'syntax error' would cause a SyntaxError if the doctest was processed.
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# However doctest does not find doctest in nested functions
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# (https://bugs.python.org/issue1650090). If nested functions were
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# processed, this use of m should cause UndefinedName, and the
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# name inner_function should probably exist in the doctest scope.
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self.flakes("""
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def doctest_stuff():
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def inner_function():
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'''
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>>> syntax error
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>>> inner_function()
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1
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>>> m
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'''
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return 1
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m = inner_function()
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return m
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""")
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def test_inaccessible_scope_class(self):
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"""Doctest may not access class scope."""
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self.flakes("""
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class C:
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def doctest_stuff(self):
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'''
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>>> m
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'''
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return 1
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m = 1
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""", m.UndefinedName)
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def test_importBeforeDoctest(self):
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self.flakes("""
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import foo
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def doctest_stuff():
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'''
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>>> foo
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'''
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""")
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@skip("todo")
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def test_importBeforeAndInDoctest(self):
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self.flakes('''
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import foo
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def doctest_stuff():
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"""
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>>> import foo
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>>> foo
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"""
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foo
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''', m.RedefinedWhileUnused)
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def test_importInDoctestAndAfter(self):
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self.flakes('''
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def doctest_stuff():
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"""
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>>> import foo
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>>> foo
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"""
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import foo
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foo()
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''')
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def test_offsetInDoctests(self):
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exc = self.flakes('''
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def doctest_stuff():
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"""
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>>> x # line 5
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"""
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''', m.UndefinedName).messages[0]
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self.assertEqual(exc.lineno, 5)
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self.assertEqual(exc.col, 12)
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def test_offsetInLambdasInDoctests(self):
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exc = self.flakes('''
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def doctest_stuff():
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"""
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>>> lambda: x # line 5
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"""
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''', m.UndefinedName).messages[0]
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self.assertEqual(exc.lineno, 5)
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self.assertEqual(exc.col, 20)
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def test_offsetAfterDoctests(self):
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exc = self.flakes('''
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def doctest_stuff():
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"""
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>>> x = 5
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"""
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x
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''', m.UndefinedName).messages[0]
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self.assertEqual(exc.lineno, 8)
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self.assertEqual(exc.col, 0)
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def test_syntaxErrorInDoctest(self):
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exceptions = self.flakes(
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'''
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def doctest_stuff():
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"""
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>>> from # line 4
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>>> fortytwo = 42
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>>> except Exception:
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"""
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''',
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m.DoctestSyntaxError,
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m.DoctestSyntaxError,
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m.DoctestSyntaxError).messages
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exc = exceptions[0]
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self.assertEqual(exc.lineno, 4)
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if sys.version_info >= (3, 8):
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self.assertEqual(exc.col, 18)
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else:
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self.assertEqual(exc.col, 26)
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# PyPy error column offset is 0,
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# for the second and third line of the doctest
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# i.e. at the beginning of the line
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exc = exceptions[1]
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self.assertEqual(exc.lineno, 5)
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if PYPY:
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self.assertEqual(exc.col, 13)
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else:
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self.assertEqual(exc.col, 16)
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exc = exceptions[2]
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self.assertEqual(exc.lineno, 6)
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if PYPY or sys.version_info >= (3, 8):
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self.assertEqual(exc.col, 13)
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else:
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self.assertEqual(exc.col, 18)
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def test_indentationErrorInDoctest(self):
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exc = self.flakes('''
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def doctest_stuff():
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"""
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>>> if True:
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... pass
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"""
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''', m.DoctestSyntaxError).messages[0]
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self.assertEqual(exc.lineno, 5)
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if PYPY or sys.version_info >= (3, 8):
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self.assertEqual(exc.col, 13)
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else:
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self.assertEqual(exc.col, 16)
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def test_offsetWithMultiLineArgs(self):
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(exc1, exc2) = self.flakes(
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'''
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def doctest_stuff(arg1,
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arg2,
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arg3):
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"""
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>>> assert
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>>> this
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"""
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''',
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m.DoctestSyntaxError,
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m.UndefinedName).messages
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self.assertEqual(exc1.lineno, 6)
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self.assertEqual(exc1.col, 19)
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self.assertEqual(exc2.lineno, 7)
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self.assertEqual(exc2.col, 12)
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def test_doctestCanReferToFunction(self):
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self.flakes("""
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def foo():
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'''
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>>> foo
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'''
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""")
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def test_doctestCanReferToClass(self):
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self.flakes("""
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class Foo():
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'''
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>>> Foo
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'''
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def bar(self):
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'''
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>>> Foo
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'''
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""")
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def test_noOffsetSyntaxErrorInDoctest(self):
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exceptions = self.flakes(
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'''
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def buildurl(base, *args, **kwargs):
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"""
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>>> buildurl('/blah.php', ('a', '&'), ('b', '=')
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'/blah.php?a=%26&b=%3D'
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>>> buildurl('/blah.php', a='&', 'b'='=')
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'/blah.php?b=%3D&a=%26'
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"""
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pass
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''',
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m.DoctestSyntaxError,
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m.DoctestSyntaxError).messages
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exc = exceptions[0]
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self.assertEqual(exc.lineno, 4)
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exc = exceptions[1]
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self.assertEqual(exc.lineno, 6)
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def test_singleUnderscoreInDoctest(self):
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self.flakes('''
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def func():
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"""A docstring
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>>> func()
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1
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>>> _
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1
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"""
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return 1
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''')
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class TestOther(_DoctestMixin, TestOther):
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"""Run TestOther with each test wrapped in a doctest."""
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class TestImports(_DoctestMixin, TestImports):
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"""Run TestImports with each test wrapped in a doctest."""
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class TestUndefinedNames(_DoctestMixin, TestUndefinedNames):
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"""Run TestUndefinedNames with each test wrapped in a doctest."""
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