fixes for file naming

tests/test_file_name_formatter.py

@@ -519,3 +519,36 @@ def test_name_submission(
     results = test_formatter.format_resource_paths(test_resources, Path())
     results = set([r[0].name for r in results])
     assert results == expected_names
+
+
+@pytest.mark.parametrize(
+    ("input_string", "expected"),
+    (
+        ("Test 💕 emoji", "Test  emoji"),
+        ("Normal text", "Normal text"),
+        ("Kirsty-Blue's post", "Kirsty-Blue's post"),
+        ("Hello 😀 world 🌍", "Hello  world "),
+        ("No emoji here", "No emoji here"),
+    ),
+)
+def test_strip_unicode_chars(input_string: str, expected: str):
+    result = FileNameFormatter._strip_unicode_chars(input_string)
+    assert result == expected
+
+
+def test_unicode_stripping_enabled(submission: MagicMock):
+    """Test that Unicode stripping is applied when enabled"""
+    submission.title = 'Test 💕 emoji'
+    formatter = FileNameFormatter("{TITLE}", "", "", strip_unicode=True)
+    result = formatter._format_name(submission, "{TITLE}")
+    assert "💕" not in result
+    assert result == "Test  emoji"
+
+
+def test_unicode_stripping_disabled(submission: MagicMock):
+    """Test that Unicode stripping is not applied when disabled"""
+    submission.title = 'Test 💕 emoji'
+    formatter = FileNameFormatter("{TITLE}", "", "", strip_unicode=False)
+    result = formatter._format_name(submission, "{TITLE}")
+    assert "💕" in result
+    assert result == "Test 💕 emoji"