129 lines
3.7 KiB
Python
129 lines
3.7 KiB
Python
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from Cython.TestUtils import CythonTest
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class TestCodeWriter(CythonTest):
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# CythonTest uses the CodeWriter heavily, so do some checking by
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# roundtripping Cython code through the test framework.
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# Note that this test is dependent upon the normal Cython parser
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# to generate the input trees to the CodeWriter. This save *a lot*
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# of time; better to spend that time writing other tests than perfecting
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# this one...
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# Whitespace is very significant in this process:
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# - always newline on new block (!)
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# - indent 4 spaces
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# - 1 space around every operator
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def t(self, codestr):
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self.assertCode(codestr, self.fragment(codestr).root)
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def test_print(self):
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self.t(u"""
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print(x + y ** 2)
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print(x, y, z)
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print(x + y, x + y * z, x * (y + z))
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""")
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def test_if(self):
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self.t(u"if x:\n pass")
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def test_ifelifelse(self):
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self.t(u"""
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if x:
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pass
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elif y:
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pass
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elif z + 34 ** 34 - 2:
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pass
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else:
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pass
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""")
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def test_def(self):
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self.t(u"""
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def f(x, y, z):
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pass
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def f(x = 34, y = 54, z):
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pass
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""")
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def test_cdef(self):
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self.t(u"""
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cdef f(x, y, z):
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pass
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cdef public void (x = 34, y = 54, z):
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pass
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cdef f(int *x, void *y, Value *z):
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pass
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cdef f(int **x, void **y, Value **z):
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pass
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cdef inline f(int &x, Value &z):
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pass
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""")
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def test_longness_and_signedness(self):
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self.t(u"def f(unsigned long long long long long int y):\n pass")
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def test_signed_short(self):
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self.t(u"def f(signed short int y):\n pass")
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def test_typed_args(self):
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self.t(u"def f(int x, unsigned long int y):\n pass")
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def test_cdef_var(self):
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self.t(u"""
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cdef int hello
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cdef int hello = 4, x = 3, y, z
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""")
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def test_for_loop(self):
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self.t(u"""
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for x, y, z in f(g(h(34) * 2) + 23):
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print(x, y, z)
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else:
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print(43)
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""")
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self.t(u"""
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for abc in (1, 2, 3):
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print(x, y, z)
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else:
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print(43)
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""")
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def test_while_loop(self):
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self.t(u"""
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while True:
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while True:
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while True:
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continue
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""")
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def test_inplace_assignment(self):
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self.t(u"x += 43")
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def test_cascaded_assignment(self):
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self.t(u"x = y = z = abc = 43")
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def test_attribute(self):
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self.t(u"a.x")
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def test_return_none(self):
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self.t(u"""
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def f(x, y, z):
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return
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cdef f(x, y, z):
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return
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def f(x, y, z):
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return None
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cdef f(x, y, z):
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return None
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def f(x, y, z):
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return 1234
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cdef f(x, y, z):
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return 1234
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""")
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if __name__ == "__main__":
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import unittest
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unittest.main()
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