106 lines
4.1 KiB
Python
106 lines
4.1 KiB
Python
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from Cython.TestUtils import CythonTest
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import Cython.Compiler.Errors as Errors
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from Cython.Compiler.Nodes import *
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from Cython.Compiler.ParseTreeTransforms import *
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from Cython.Compiler.Buffer import *
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class TestBufferParsing(CythonTest):
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# First, we only test the raw parser, i.e.
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# the number and contents of arguments are NOT checked.
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# However "dtype"/the first positional argument is special-cased
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# to parse a type argument rather than an expression
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def parse(self, s):
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return self.should_not_fail(lambda: self.fragment(s)).root
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def not_parseable(self, expected_error, s):
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e = self.should_fail(lambda: self.fragment(s), Errors.CompileError)
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self.assertEqual(expected_error, e.message_only)
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def test_basic(self):
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t = self.parse(u"cdef object[float, 4, ndim=2, foo=foo] x")
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bufnode = t.stats[0].base_type
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self.assertTrue(isinstance(bufnode, TemplatedTypeNode))
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self.assertEqual(2, len(bufnode.positional_args))
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# print bufnode.dump()
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# should put more here...
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def test_type_pos(self):
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self.parse(u"cdef object[short unsigned int, 3] x")
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def test_type_keyword(self):
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self.parse(u"cdef object[foo=foo, dtype=short unsigned int] x")
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def test_pos_after_key(self):
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self.not_parseable("Non-keyword arg following keyword arg",
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u"cdef object[foo=1, 2] x")
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# See also tests/error/e_bufaccess.pyx and tets/run/bufaccess.pyx
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# THESE TESTS ARE NOW DISABLED, the code they test was pretty much
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# refactored away
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class TestBufferOptions(CythonTest):
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# Tests the full parsing of the options within the brackets
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def nonfatal_error(self, error):
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# We're passing self as context to transform to trap this
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self.error = error
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self.assertTrue(self.expect_error)
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def parse_opts(self, opts, expect_error=False):
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assert opts != ""
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s = u"def f():\n cdef object[%s] x" % opts
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self.expect_error = expect_error
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root = self.fragment(s, pipeline=[NormalizeTree(self), PostParse(self)]).root
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if not expect_error:
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vardef = root.stats[0].body.stats[0]
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assert isinstance(vardef, CVarDefNode) # use normal assert as this is to validate the test code
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buftype = vardef.base_type
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self.assertTrue(isinstance(buftype, TemplatedTypeNode))
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self.assertTrue(isinstance(buftype.base_type_node, CSimpleBaseTypeNode))
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self.assertEqual(u"object", buftype.base_type_node.name)
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return buftype
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else:
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self.assertTrue(len(root.stats[0].body.stats) == 0)
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def non_parse(self, expected_err, opts):
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self.parse_opts(opts, expect_error=True)
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# e = self.should_fail(lambda: self.parse_opts(opts))
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self.assertEqual(expected_err, self.error.message_only)
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def __test_basic(self):
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buf = self.parse_opts(u"unsigned short int, 3")
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self.assertTrue(isinstance(buf.dtype_node, CSimpleBaseTypeNode))
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self.assertTrue(buf.dtype_node.signed == 0 and buf.dtype_node.longness == -1)
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self.assertEqual(3, buf.ndim)
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def __test_dict(self):
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buf = self.parse_opts(u"ndim=3, dtype=unsigned short int")
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self.assertTrue(isinstance(buf.dtype_node, CSimpleBaseTypeNode))
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self.assertTrue(buf.dtype_node.signed == 0 and buf.dtype_node.longness == -1)
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self.assertEqual(3, buf.ndim)
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def __test_ndim(self):
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self.parse_opts(u"int, 2")
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self.non_parse(ERR_BUF_NDIM, u"int, 'a'")
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self.non_parse(ERR_BUF_NDIM, u"int, -34")
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def __test_use_DEF(self):
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t = self.fragment(u"""
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DEF ndim = 3
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def f():
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cdef object[int, ndim] x
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cdef object[ndim=ndim, dtype=int] y
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""", pipeline=[NormalizeTree(self), PostParse(self)]).root
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stats = t.stats[0].body.stats
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self.assertTrue(stats[0].base_type.ndim == 3)
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self.assertTrue(stats[1].base_type.ndim == 3)
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# add exotic and impossible combinations as they come along...
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if __name__ == '__main__':
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import unittest
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unittest.main()
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