BUG: core: fix _dotblas usage on Py3 (fixes #1609)

1 files changed, 15 insertions, 1 deletions

diff --git a/numpy/core/tests/test_blasdot.py b/numpy/core/tests/test_blasdot.py
index aeaf55fbb..3c04759d5 100644
--- a/numpy/core/tests/test_blasdot.py
+++ b/numpy/core/tests/test_blasdot.py
@@ -1,5 +1,5 @@
 from numpy.core import zeros, float64
-from numpy.testing import TestCase, assert_almost_equal
+from numpy.testing import dec, TestCase, assert_almost_equal, assert_
 from numpy.core.multiarray import inner as inner_
 
 DECPREC = 14
@@ -12,3 +12,17 @@ class TestInner(TestCase):
         a = zeros(shape = (1, 80), dtype = float64)
         p = inner_(a, a)
         assert_almost_equal(p, 0, decimal = DECPREC)
+
+try:
+    import numpy.core._dotblas as _dotblas
+except ImportError:
+    _dotblas = None
+
+@dec.skipif(_dotblas is None, "Numpy is not compiled with _dotblas")
+def test_blasdot_used():
+    from numpy.core import dot, vdot, inner, alterdot, restoredot
+    assert_(dot is _dotblas.dot)
+    assert_(vdot is _dotblas.vdot)
+    assert_(inner is _dotblas.inner)
+    assert_(alterdot is _dotblas.alterdot)
+    assert_(restoredot is _dotblas.restoredot)