Moved query unittests

unittests/unittests_query/iterable_test_case.py

@@ -0,0 +1,21 @@
+import unittest
+
+from cpl_query.extension.list import List
+
+
+class IterableTestCase(unittest.TestCase):
+
+    def setUp(self) -> None:
+        self._list = List(int)
+
+    def _clear(self):
+        self._list.clear()
+        self.assertEqual(self._list, [])
+
+    def test_append(self):
+        self._list.append(1)
+        self._list.append(2)
+        self._list.append(3)
+
+        self.assertEqual(self._list, [1, 2, 3])
+        self.assertRaises(Exception, lambda v: self._list.append(v), '3')