I'll help you write comprehensive test cases for the getBankName function. Let me first find the function in your codebase to understand the context better.
It seems I can't find the function in the current directory. Let me search more broadly for TypeScript/JavaScript files and then look for this function:
Since I can't locate the function in the current codebase, I'll create a comprehensive test file for the getBankName function based on the provided code. I'll assume it's a TypeScript function and create the corresponding test file.