Fix CI/CD issues: linting errors and test file corruption

dataforge/parsers.py

@@ -30,7 +30,9 @@ def detect_format(file_path: str) -> str:
     }
     format_name = format_map.get(ext)
     if format_name is None:
-        raise ValueError(f"Unsupported file extension: {ext}. Supported formats: {', '.join(SUPPORTED_FORMATS)}")
+        raise ValueError(
+            f"Unsupported file extension: {ext}. Supported formats: {', '.join(SUPPORTED_FORMATS)}"
+        )
     return format_name
 
 
@@ -74,12 +76,18 @@ def parse_content(content: str, format: str) -> Any:
         elif tomllib is not None:
             return tomllib.loads(content)
         else:
-            raise ImportError("Neither tomli nor tomllib is available for TOML parsing")
+            raise ImportError(
+                "Neither tomli nor tomllib is available for TOML parsing"
+            )
     else:
-        raise ValueError(f"Unsupported format: {format}. Supported formats: {', '.join(SUPPORTED_FORMATS)}")
+        raise ValueError(
+            f"Unsupported format: {format}. Supported formats: {', '.join(SUPPORTED_FORMATS)}"
+        )
 
 
-def dump_data(data: Any, format: str, output: Optional[str] = None, indent: int = 2) -> str:
+def dump_data(
+    data: Any, format: str, output: Optional[str] = None, indent: int = 2
+) -> str:
     """Dump data to string or file based on format."""
     if format == "json":
         result = json.dumps(data, indent=indent, ensure_ascii=False)
@@ -88,16 +96,22 @@ def dump_data(data: Any, format: str, output: Optional[str] = None, indent: int
     elif format == "toml":
         try:
             import tomli_w
+
             result = tomli_w.dumps(data)
         except ImportError:
             try:
                 import tomllib
+
                 result = tomllib.dumps(data)
             except ImportError:
-                raise ImportError("tomli_w or tomllib required for TOML output")
+                raise ImportError(
+                    "tomli_w or tomllib required for TOML output"
+                )
     else:
-        raise ValueError(f"Unsupported format: {format}. Supported formats: {', '.join(SUPPORTED_FORMATS)}")
+        raise ValueError(
-    
+            f"Unsupported format: {format}. Supported formats: {', '.join(SUPPORTED_FORMATS)}"
+        )
+
     if output:
         with open(output, "w", encoding="utf-8") as f:
             f.write(result)