test: Skip tests for Python 3.7

Author: kayjan

tests/tree/test_construct.py

@@ -1,3 +1,4 @@
+import sys
 import unittest
 
 import pandas as pd
@@ -1318,6 +1319,7 @@ def test_add_dataframe_to_tree_by_name_inconsistent_attributes(self):
         )
 
 
+@unittest.skipIf(sys.version_info <= (3, 7), "polars not supported")
 class TestAddPolarsToTreeByPath(unittest.TestCase):
     def setUp(self):
         """
@@ -1751,6 +1753,7 @@ def test_add_polars_to_tree_by_path_different_root_error(self):
         )
 
 
+@unittest.skipIf(sys.version_info <= (3, 7), "polars not supported")
 class TestAddPolarsToTreeByName(unittest.TestCase):
     def setUp(self):
         """
@@ -3665,6 +3668,7 @@ def test_dataframe_to_tree_by_relation_no_root_error():
         ) == Constants.ERROR_NODE_DATAFRAME_MULTIPLE_ROOT.format(root_nodes=[])
 
 
+@unittest.skipIf(sys.version_info <= (3, 7), "polars not supported")
 class TestPolarsToTree(unittest.TestCase):
     def setUp(self):
         """
@@ -4105,6 +4109,7 @@ def test_polars_to_tree_different_root_error():
         )
 
 
+@unittest.skipIf(sys.version_info <= (3, 7), "polars not supported")
 class TestPolarsToTreeByRelation(unittest.TestCase):
     def setUp(self):
         self.relation_data = pl.DataFrame(

tests/tree/test_export.py

@@ -1,3 +1,6 @@
+import sys
+import unittest
+
 import pandas as pd
 import polars as pl
 import pytest
@@ -866,6 +869,7 @@ def test_tree_to_dataframe_to_tree(tree_node):
         assert_tree_structure_node_root(tree)
 
 
+@unittest.skipIf(sys.version_info <= (3, 7), "polars not supported")
 class TestTreeToPolars:
     @staticmethod
     def test_tree_to_polars(tree_node):