Improve unittest calls (#1433)

Improve unittest calls

reformatted tests/test_graph.py
All done! 1 reformatted, 48 left unchanged

tests/test_graph.py

@@ -201,8 +201,8 @@ class WorkListTest(TestCase):
         wlst.add((100, "Test Value 1"))
         wlst.add((50, "Test Value 2"))
         wlst.add((200, "Test Value 3"))
-        self.assertTrue(wlst.get() == (200, "Test Value 3"))
-        self.assertTrue(wlst.get() == (100, "Test Value 1"))
+        self.assertEqual(wlst.get(), (200, "Test Value 3"))
+        self.assertEqual(wlst.get(), (100, "Test Value 1"))
         wlst.add((150, "Test Value 4"))
-        self.assertTrue(wlst.get() == (150, "Test Value 4"))
-        self.assertTrue(wlst.get() == (50, "Test Value 2"))
+        self.assertEqual(wlst.get(), (150, "Test Value 4"))
+        self.assertEqual(wlst.get(), (50, "Test Value 2"))