def test_dtype_constr_errors(self): # Create a symbol table with no types in it, so we can # make some isolated type constructors for testing sym = datashape.TypeSymbolTable(bare=True) # A limited set of dtypes for testing sym.dtype['int8'] = ct.int8 sym.dtype['uint16'] = ct.uint16 sym.dtype['float64'] = ct.float64 # Arbitrary dtype constructor that does nothing def _type_constr(*args, **kwargs): return ct.float32 sym.dtype_constr['tcon'] = _type_constr # Require closing "]" self.assertRaises(DataShapeSyntaxError, parse, 'tcon[', sym) # Type constructors should always have an argument self.assertRaises(DataShapeSyntaxError, parse, 'tcon[]', sym) # Unknown type self.assertRaises(DataShapeSyntaxError, parse, 'tcon[unknown]', sym) # Missing parameter value self.assertRaises(DataShapeSyntaxError, parse, 'tcon[x=', sym) self.assertRaises(DataShapeSyntaxError, parse, 'tcon[x=]', sym) # A positional arg cannot be after a keyword arg self.assertRaises(DataShapeSyntaxError, parse, 'tcon[x=A, B]', sym) # List args must be homogeneous self.assertRaises(DataShapeSyntaxError, parse, 'tcon[[0, "x"]]', sym) self.assertRaises(DataShapeSyntaxError, parse, 'tcon[[0, X]]', sym) self.assertRaises(DataShapeSyntaxError, parse, 'tcon[["x", 0]]', sym) self.assertRaises(DataShapeSyntaxError, parse, 'tcon[["x", X]]', sym) self.assertRaises(DataShapeSyntaxError, parse, 'tcon[[X, 0]]', sym) self.assertRaises(DataShapeSyntaxError, parse, 'tcon[[X, "x"]]', sym)
def test_binary_dtype_constr(self): # Create a symbol table with no types in it, so we can # make some isolated type constructors for testing sym = datashape.TypeSymbolTable(bare=True) # A limited set of dtypes for testing sym.dtype['int8'] = ct.int8 sym.dtype['uint16'] = ct.uint16 sym.dtype['float64'] = ct.float64 # TypeVar type constructor sym.dtype_constr['typevar'] = ct.TypeVar # Binary dtype constructor that asserts on the argument values expected_arg = [None, None] def _binary_type_constr(a, b): self.assertEqual(a, expected_arg[0]) self.assertEqual(b, expected_arg[1]) expected_arg[0] = None expected_arg[1] = None return ct.float32 sym.dtype_constr['binary'] = _binary_type_constr def assertExpectedParse(ds_str, expected_a, expected_b): # Set the expected value, and call the parser expected_arg[0] = expected_a expected_arg[1] = expected_b self.assertEqual(parse(ds_str, sym), ct.DataShape(ct.float32)) # Make sure the expected value was actually run by # check that it reset the expected value to None self.assertEqual(expected_arg, [None, None], 'The test binary type constructor did not run') # Positional args assertExpectedParse('binary[1, 0]', 1, 0) assertExpectedParse('binary[0, "test"]', 0, 'test') assertExpectedParse('binary[int8, "test"]', ct.DataShape(ct.int8), 'test') assertExpectedParse('binary[[1,3,5], "test"]', [1, 3, 5], 'test') # Positional and keyword args assertExpectedParse('binary[0, b=1]', 0, 1) assertExpectedParse('binary["test", b=A]', 'test', ct.DataShape(ct.TypeVar('A'))) assertExpectedParse('binary[[3, 6], b=int8]', [3, 6], ct.DataShape(ct.int8)) assertExpectedParse('binary[Arg, b=["x", "test"]]', ct.DataShape(ct.TypeVar('Arg')), ['x', 'test']) # Keyword args assertExpectedParse('binary[a=1, b=0]', 1, 0) assertExpectedParse('binary[a=[int8, A, uint16], b="x"]', [ ct.DataShape(ct.int8), ct.DataShape(ct.TypeVar('A')), ct.DataShape(ct.uint16) ], 'x')
def test_unary_dtype_constr(self): # Create a symbol table with no types in it, so we can # make some isolated type constructors for testing sym = datashape.TypeSymbolTable(bare=True) # A limited set of dtypes for testing sym.dtype['int8'] = ct.int8 sym.dtype['uint16'] = ct.uint16 sym.dtype['float64'] = ct.float64 # TypeVar type constructor sym.dtype_constr['typevar'] = ct.TypeVar # Unary dtype constructor that asserts on the argument value expected_blah = [None] def _unary_type_constr(blah): self.assertEqual(blah, expected_blah[0]) expected_blah[0] = None return ct.float32 sym.dtype_constr['unary'] = _unary_type_constr def assertExpectedParse(ds_str, expected): # Set the expected value, and call the parser expected_blah[0] = expected self.assertEqual(parse(ds_str, sym), ct.DataShape(ct.float32)) # Make sure the expected value was actually run by # check that it reset the expected value to None self.assertEqual(expected_blah[0], None, 'The test unary type constructor did not run') # Integer parameter (positional) assertExpectedParse('unary[0]', 0) assertExpectedParse('unary[100000]', 100000) # String parameter (positional) assertExpectedParse('unary["test"]', 'test') assertExpectedParse("unary['test']", 'test') assertExpectedParse('unary["\\uc548\\ub155"]', u'\uc548\ub155') assertExpectedParse(u'unary["\uc548\ub155"]', u'\uc548\ub155') # DataShape parameter (positional) assertExpectedParse('unary[int8]', ct.DataShape(ct.int8)) assertExpectedParse('unary[X]', ct.DataShape(ct.TypeVar('X'))) # Empty list parameter (positional) assertExpectedParse('unary[[]]', []) # List of integers parameter (positional) assertExpectedParse('unary[[0, 3, 12]]', [0, 3, 12]) # List of strings parameter (positional) assertExpectedParse('unary[["test", "one", "two"]]', ["test", "one", "two"]) # List of datashapes parameter (positional) assertExpectedParse('unary[[float64, int8, uint16]]', [ ct.DataShape(ct.float64), ct.DataShape(ct.int8), ct.DataShape(ct.uint16) ]) # Integer parameter (keyword) assertExpectedParse('unary[blah=0]', 0) assertExpectedParse('unary[blah=100000]', 100000) # String parameter (keyword) assertExpectedParse('unary[blah="test"]', 'test') assertExpectedParse("unary[blah='test']", 'test') assertExpectedParse('unary[blah="\\uc548\\ub155"]', u'\uc548\ub155') assertExpectedParse(u'unary[blah="\uc548\ub155"]', u'\uc548\ub155') # DataShape parameter (keyword) assertExpectedParse('unary[blah=int8]', ct.DataShape(ct.int8)) assertExpectedParse('unary[blah=X]', ct.DataShape(ct.TypeVar('X'))) # Empty list parameter (keyword) assertExpectedParse('unary[blah=[]]', []) # List of integers parameter (keyword) assertExpectedParse('unary[blah=[0, 3, 12]]', [0, 3, 12]) # List of strings parameter (keyword) assertExpectedParse('unary[blah=["test", "one", "two"]]', ["test", "one", "two"]) # List of datashapes parameter (keyword) assertExpectedParse('unary[blah=[float64, int8, uint16]]', [ ct.DataShape(ct.float64), ct.DataShape(ct.int8), ct.DataShape(ct.uint16) ])
def setUp(self): # Create a default symbol table for the parser to use self.sym = datashape.TypeSymbolTable()
def sym(): return datashape.TypeSymbolTable()