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from Cython.Build.Dependencies import strip_string_literals
from Cython.TestUtils import CythonTest
class TestStripLiterals(CythonTest):
def t(self, before, expected):
actual, literals = strip_string_literals(before, prefix="_L")
self.assertEqual(expected, actual)
for key, value in literals.items():
actual = actual.replace(key, value)
self.assertEqual(before, actual)
def test_empty(self):
self.t("", "")
def test_single_quote(self):
self.t("'x'", "'_L1_'")
def test_double_quote(self):
self.t('"x"', '"_L1_"')
def test_nested_quotes(self):
self.t(""" '"' "'" """, """ '_L1_' "_L2_" """)
def test_triple_quote(self):
self.t(" '''a\n''' ", " '''_L1_''' ")
def test_backslash(self):
self.t(r"'a\'b'", "'_L1_'")
self.t(r"'a\\'", "'_L1_'")
self.t(r"'a\\\'b'", "'_L1_'")
def test_unicode(self):
self.t("u'abc'", "u'_L1_'")
def test_raw(self):
self.t(r"r'abc\\'", "r'_L1_'")
def test_raw_unicode(self):
self.t(r"ru'abc\\'", "ru'_L1_'")
def test_comment(self):
self.t("abc # foo", "abc #_L1_")
def test_comment_and_quote(self):
self.t("abc # 'x'", "abc #_L1_")
self.t("'abc#'", "'_L1_'")
def test_include(self):
self.t("include 'a.pxi' # something here",
"include '_L1_' #_L2_")
def test_extern(self):
self.t("cdef extern from 'a.h': # comment",
"cdef extern from '_L1_': #_L2_")
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