---
source: crates/biome_js_analyze/tests/spec_tests.rs
expression: malformedOptionsEmptyFilenameCases.js
---
# Input
```jsx

```

# Diagnostics
```
malformedOptionsEmptyFilenameCases.options:9:24 deserialize ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × filenameCases cannot be an empty array.
  
     7 │ 					"level": "error",
     8 │ 					"options": {
   > 9 │ 						"filenameCases": []
       │ 						                 ^^
    10 │ 					}
    11 │ 				}
  

```