Coverage for backend/django/core/auxiliary/formula_units.py: 67%

1from __future__ import annotations 

2 

3 

4def formula_unit_expression(unit: str) -> str | None: 

5 """Render a project unit string in the syntax accepted by formula expressions.""" 

6 

7 cleaned = unit.strip() 

8 if not cleaned: 8 ↛ 9line 8 didn't jump to line 9 because the condition on line 8 was never true

9 return "" 

10 if not all(char.isalnum() or char in {"_", "/", "*", "^", ".", " "} for char in cleaned): 10 ↛ 11line 10 didn't jump to line 11 because the condition on line 10 was never true

11 return None 

12 return cleaned.replace("^", "**").replace("/", " / ")