bump coverage further

Author: scottgigante

test/test_knn.py

@@ -85,7 +85,8 @@ def test_bandwidth_no_decay():
 @raises(ValueError)
 def test_knn_no_knn_no_bandwidth():
     build_graph(data, graphtype='knn',
-                knn=None, bandwidth=None)
+                knn=None, bandwidth=None,
+                thresh=1e-4)
 
 
 #####################################################
@@ -328,6 +329,14 @@ def test_shortest_path():
     np.testing.assert_equal(P, G.shortest_path())
 
 
+@raises(NotImplementedError)
+def test_shortest_path_decay():
+    data_small = data[np.random.choice(
+        len(data), len(data) // 4, replace=False)]
+    G = build_graph(data_small, knn=5, decay=15)
+    G.shortest_path()
+
+
 ####################
 # Test API
 ####################