skip converting empty yaml objects

Author: ashwgit

iib/workers/tasks/fbc_utils.py

@@ -169,5 +169,8 @@ def enforce_json_config_dir(config_dir: str) -> None:
                 with open(in_file, 'r') as yaml_in, open(out_file, 'a') as json_out:
                     data = yaml.load_all(yaml_in)
                     for chunk in data:
+                        # Ignore if it is an empty yaml object
+                        if chunk is None:
+                            continue
                         json.dump(chunk, json_out, default=_serialize_datetime)
                 os.remove(in_file)

tests/test_workers/test_tasks/test_fbc_utils.py

@@ -300,3 +300,25 @@ def test__serialize_datetime():
 def test__serialize_datetime_raise():
     with pytest.raises(TypeError, match="Type <class 'int'> is not serializable."):
         _serialize_datetime(2025)
+
+
+def test_enforce_json_config_dir_skips_empty_yaml_documents(tmpdir):
+    yaml_with_empty_doc = """\
+    ---
+    foo: bar
+    ---
+    ---
+    another: data
+    """
+
+    expected_result = '{"foo": "bar"}{"another": "data"}'
+
+    input = os.path.join(tmpdir, "test_file.yaml")
+    output = os.path.join(tmpdir, "test_file.json")
+    with open(input, 'w') as w:
+        w.write(dedent(yaml_with_empty_doc))
+
+    enforce_json_config_dir(tmpdir)
+
+    with open(output, 'r') as f:
+        assert f.read() == expected_result