Code cleanup and marked error handling as 'no coverage'.

graph.py

@@ -68,23 +68,6 @@ def generate_graph(root, node_type, separator=' ', verbose=False):
 
         return width
 
-    def node_middle(node):
-        node_len = len(node)
-        node_mid = int(node_len / 2)
-
-        #if node_len % 2 == 1:
-        #    node_mid += 1
-
-        middle = 0
-
-        for i, child in enumerate(node):
-            if i == node_mid:
-                break
-
-            middle += node_width[child]
-
-        return middle + max(0, separator_len * (node_mid - 1))
-
     def format_lines(node):
         if not isinstance(node, node_type):
             # Leaf titles do not need to be centered, since the parent will
@@ -185,7 +168,7 @@ def generate_graph(root, node_type, separator=' ', verbose=False):
 
         try:
             assert len(title_line) == len(edge_line)
-        except AssertionError:
+        except AssertionError:  # pragma: nocover
             print '------------------'
             print 'line_width:', line_width
             print 'title_line:', title_line, 'len:', len(title_line)

tests/test_graph.py

@@ -83,7 +83,7 @@ class TestGraph(unittest.TestCase):
     def assertEqualGraphs(self, g, expect):
         expect = self.strip(expect)
 
-        if g != expect:
+        if g != expect:  # pragma: nocover
             print 'Expected:'
             print expect
             print 'Got:'