Improve Test Coverage for ElectionFactory.sol

[rairohit17]

Description

The current test suite for ElectionFactory.sol lacks sufficient coverage and needs major additions. Additionally, the contract changes introduced in PR #73 were not accompanied by new tests—only modifications to existing ones.

##Tasks
✅ Add missing test cases to improve overall test coverage specifically for ElectionFactory.sol.
✅ Write new tests specifically for the contract changes made in PR #73.
✅ Ensure edge cases are covered to validate contract behavior.
✅ Run coverage reports and verify improvements.

this is the current test coverage

[rairohit17]

@Ronnieraj37 Should I start working on this issue? The coverage details are in the image above. Let me know how to proceed!