chore: improve position map conversion and tolerate empty position yaml file (#6541)

api/tests/unit_tests/utils/position_helper/test_position_helper.py

@@ -21,6 +21,20 @@ def prepare_example_positions_yaml(tmp_path, monkeypatch) -> str:
     return str(tmp_path)
 
 
+@pytest.fixture
+def prepare_empty_commented_positions_yaml(tmp_path, monkeypatch) -> str:
+    monkeypatch.chdir(tmp_path)
+    tmp_path.joinpath("example_positions_all_commented.yaml").write_text(dedent(
+        """\
+        # - commented1
+        # - commented2
+        - 
+        -   
+        
+        """))
+    return str(tmp_path)
+
+
 def test_position_helper(prepare_example_positions_yaml):
     position_map = get_position_map(
         folder_path=prepare_example_positions_yaml,
@@ -32,3 +46,10 @@ def test_position_helper(prepare_example_positions_yaml):
         'third': 2,
         'forth': 3,
     }
+
+
+def test_position_helper_with_all_commented(prepare_empty_commented_positions_yaml):
+    position_map = get_position_map(
+        folder_path=prepare_empty_commented_positions_yaml,
+        file_name='example_positions_all_commented.yaml')
+    assert position_map == {}