Made regression test easier by adding small value to main diagonal

yanlend · yanlend · commit 030763e8a02d · 2015-10-23T08:50:07.000+02:00
diff --git a/sklearn/utils/tests/test_utils.py b/sklearn/utils/tests/test_utils.py
@@ -137,7 +137,7 @@ def test_arpack_eigsh_initialization():
 
     A = random_state.rand(50, 50)
     A = np.dot(A.T, A)  # create s.p.d. matrix
-    A = graph_laplacian(A)
+    A = graph_laplacian(A) + 1e-7 * np.identity(A.shape[0])
     k = 5
 
     # Test if eigsh is working correctly
