wasted 45 seconds of my life appeasing the pep8 nitpickers

theano/tests/test_printing.py

@@ -35,3 +35,32 @@ def test_pydotprint_cond_highlight():
         theano.theano_logger.removeHandler(new_handler)
 
     assert s.getvalue() == 'pydotprint: cond_highlight is set but there is no IfElse node in the graph\n'
+
+
+def test_min_informative_str():
+    """ evaluates a reference output to make sure the
+        min_informative_str function works as intended """
+
+    A = tensor.matrix(name = 'A')
+    B = tensor.matrix(name = 'B')
+    C = A + B
+    C.name = 'C'
+    D = tensor.matrix(name = 'D')
+    E = tensor.matrix(name = 'E')
+
+    F = D + E
+    G = C + F
+
+    mis = min_informative_str(G)
+
+    reference = """A. Elemwise{add,no_inplace}
+	B. C
+	C. Elemwise{add,no_inplace}
+		D. D
+		E. E"""
+
+    if mis != reference:
+        print '--'+mis+'--'
+        print '--'+reference+'--'
+
+    assert mis == reference