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from Cython.TestUtils import CythonTest
class TestCodeWriter(CythonTest):
# CythonTest uses the CodeWriter heavily, so do some checking by
# roundtripping Cython code through the test framework.
# Note that this test is dependant upon the normal Cython parser
# to generate the input trees to the CodeWriter. This save *a lot*
# of time; better to spend that time writing other tests than perfecting
# this one...
# Whitespace is very significant in this process:
# - always newline on new block (!)
# - indent 4 spaces
# - 1 space around every operator
def t(self, codestr):
self.assertCode(codestr, self.fragment(codestr).root)
def test_print(self):
self.t(u"""
print x, y
print x + y ** 2
print x, y, z,
""")
def test_if(self):
self.t(u"if x:\n pass")
def test_ifelifelse(self):
self.t(u"""
if x:
pass
elif y:
pass
elif z + 34 ** 34 - 2:
pass
else:
pass
""")
def test_def(self):
self.t(u"""
def f(x, y, z):
pass
def f(x = 34, y = 54, z):
pass
""")
def test_longness_and_signedness(self):
self.t(u"def f(unsigned long long long long long int y):\n pass")
def test_signed_short(self):
self.t(u"def f(signed short int y):\n pass")
def test_typed_args(self):
self.t(u"def f(int x, unsigned long int y):\n pass")
def test_cdef_var(self):
self.t(u"""
cdef int hello
cdef int hello = 4, x = 3, y, z
""")
def test_for_loop(self):
self.t(u"""
for x, y, z in f(g(h(34) * 2) + 23):
print x, y, z
else:
print 43
""")
def test_inplace_assignment(self):
self.t(u"x += 43")
def test_attribute(self):
self.t(u"a.x")
if __name__ == "__main__":
import unittest
unittest.main()
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