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
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