TreeNode test added, working correct

Author: Kishan-Ved

pydatastructs/utils/misc_util.py

@@ -1,6 +1,6 @@
 import math, pydatastructs
 from enum import Enum
-# from pydatastructs.utils._backend.cpp import _nodes
+# from pydatastructs.utils._backend.cpp import _nodes  # Check why _nodes can't be imported here
 
 __all__ = [
     'TreeNode',
@@ -74,7 +74,6 @@ def methods(cls):
 
     def __new__(cls, key, data=None, **kwargs):
         backend = kwargs.get('backend', Backend.PYTHON)
-        # print("backend checked")
         if backend == Backend.CPP:
             print("Backend switched to C++")
             # return _nodes.TreeNode(key, data, **kwargs)

pydatastructs/utils/tests/test_misc_util.py

@@ -4,13 +4,11 @@
 from pydatastructs.utils.misc_util import Backend
 from pydatastructs.utils._backend.cpp import _nodes
 
-def test_TreeNode():
-    n = _nodes.TreeNode(None,1,100)
+def test_cpp_TreeNode():
+    n = _nodes.TreeNode(1,100)
     print(str(n))
     assert str(n) == "(None, 1, 100, None)"
 
-
-
 def test_AdjacencyListGraphNode():
     g_1 = AdjacencyListGraphNode('g_1', 1)
     g_2 = AdjacencyListGraphNode('g_2', 2)
@@ -59,5 +57,3 @@ def test_RedBlackTreeNode():
 def test_SkipNode():
     c = SkipNode(1)
     assert str(c) == '(1, None)'
-
-test_TreeNode()