Apply patch to fix ticket #557 (pinv causing error with empty arrays)

1 files changed, 10 insertions, 1 deletions

diff --git a/numpy/linalg/tests/test_linalg.py b/numpy/linalg/tests/test_linalg.py
index af7914200..1b380fa12 100644
--- a/numpy/linalg/tests/test_linalg.py
+++ b/numpy/linalg/tests/test_linalg.py
@@ -4,7 +4,7 @@
 from numpy.testing import *
 set_package_path()
 from numpy import array, single, double, csingle, cdouble, dot, identity, \
-        multiply
+        multiply, atleast_2d
 from numpy import linalg
 restore_path()
 
@@ -37,6 +37,15 @@ class LinalgTestCase(NumpyTestCase):
         b = array([2.+1j, 1.+2j], dtype=cdouble)
         self.do(a, b)
 
+    def check_empty(self):
+        a = atleast_2d(array([], dtype = double))
+        b = atleast_2d(array([], dtype = double))
+        try:
+            self.do(a, b)
+            raise AssertionError("%s should fail with empty matrices", self.__name__[5:])
+        except linalg.LinAlgError, e:
+            pass
+
 class test_solve(LinalgTestCase):
     def do(self, a, b):
         x = linalg.solve(a, b)