Increase coverage

src/raspa_ase/utils/io.py

@@ -106,11 +106,10 @@ def _dict_to_str(d: dict[str, Any]) -> str:
     """
     s = ""
     for k, v in d.items():
-        s += f"    {k} "
         if isinstance(v, dict):
-            s += _dict_to_str(v)
+            s += f"    {k}\n    " + _dict_to_str(v)
         elif isinstance(v, Iterable) and not isinstance(v, str):
-            s += _iterable_to_str(v)
+            s += f"    {k} " + _iterable_to_str(v)
         else:
-            s += f"{v}\n"
+            s += f"    {k} {v}\n"
     return s

tests/utils/test_io.py

@@ -4,10 +4,13 @@
 
 
 def test_write_simulation_input(tmp_path):
-    parameters = {"a": 1, "b": [2, 3], "c": {"d": 4, "e": False}}
+    parameters = {"a": 1, "b": [2, 3], "c": {"d": 4, "e": False, "f": {"g": 5}}}
     input_filepath = tmp_path / "simulation.input"
     write_simulation_input(parameters, input_filepath)
-    assert input_filepath.read_text() == "a 1\nb 2 3\nc\n    d 4\n    e No\n"
+    assert (
+        input_filepath.read_text().strip()
+        == "a 1\nb 2 3\nc\n    d 4\n    e No\n    f\n        g 5"
+    )
 
 
 def test_write_frameworks(tmp_path):