Python Unittest woes: not all argument converted during string formatting

Question

When running unittest, I receive a "not all arguments converted during string formatting." When running the code directly, everything works fine; it's only running Unittest that's a problem. When I run the same exact command map.add_node('a','b','c','d') directly there is no problem

Main program:

    def add_node(self, *args):
      main_node = args[0]
      connected_nodes = args[1:]
      if main_node in self.graph_dict:
        main_node = str(main_node) #getting desperate here
        print('%s in graph already. Updating...\n' % main_node) #** problem is here
      else:
        print('%s added.\n' % main_node)
      self.graph_dict.update({main_node: connected_nodes})
      return

Unittest:

  def test_add_node(self):
       graph = main.Graph()
       nodes = ('a', 'b', 'c', 'd')
       graph.add_node(nodes)
       self.assertEqual(True,False)```

score 0 · Accepted Answer · answered Mar 27 '20 at 21:15

0

You are not comparing apples to apples.

You describe two ways of calling add_node() and one of them is wrong.

Perhaps you meant:

graph.add_node(*nodes)

answered Mar 27 '20 at 21:15

quamrana

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Thanks. Just learned *args and didn't realize I had to * a variable when passed in. – verblox Mar 27 '20 at 21:46

Python Unittest woes: not all argument converted during string formatting

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