2010/3/31 Øyvind Jensen <jensen.oyv...@gmail.com>:
> Added a test.
> ---
> sympy/core/symbol.py | 2 +-
> sympy/core/tests/test_symbol.py | 12 ++++++++++++
> 2 files changed, 13 insertions(+), 1 deletions(-)
>
> diff --git a/sympy/core/symbol.py b/sympy/core/symbol.py
> index 8f5db2a..e405fbb 100644
> --- a/sympy/core/symbol.py
> +++ b/sympy/core/symbol.py
> @@ -64,7 +64,7 @@ def _hashable_content(self):
> return (self.is_commutative, self.name)
>
> def as_dummy(self):
> - return Dummy(self.name, **self.assumptions0)
> + return Dummy(self.name, self.is_commutative, **self.assumptions0)
>
> def __call__(self, *args):
> return Function(self.name, nargs=len(args))(*args,
> **self.assumptions0)
> diff --git a/sympy/core/tests/test_symbol.py b/sympy/core/tests/test_symbol.py
> index ffa0f8e..5fb82ff 100644
> --- a/sympy/core/tests/test_symbol.py
> +++ b/sympy/core/tests/test_symbol.py
> @@ -18,6 +18,18 @@ def test_Symbol():
> assert Symbol("x") == Symbol("x")
> assert Symbol("x", dummy=True) != Symbol("x", dummy=True)
>
> +def test_as_dummy_nondummy():
> + x = Symbol('x')
> + x1 = x.as_dummy()
> + assert x1 != x
> + assert x1 != x.as_dummy()
> + # assert x == x1.as_nondummy()
> +
> + x = Symbol('x', commutative = False)
> + x1 = x.as_dummy()
> + assert x1 != x
> + assert x1.is_commutative == False
> + # assert x == x1.as_nondummy()
>
> def test_lt_gt():
> x, y = Symbol('x'), Symbol('y')
> --
> 1.6.5
Looking at the core, is_commutative is a special case here, so I'm +1.
Our core desperately needs to be cleaned up by the way.
I pushed it in.
Vinzent
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