Function demand_system_error

pub fn demand_system_error(
    expected_error: SystemError,
    result: TransactionResult,
)

Asserts that a system error occurs, regardless of which instruction index produced it.

This is the “anywhere” version that matches system errors without caring about instruction index. When a transaction fails, there’s exactly one error - this function checks if that error matches the expected system error, ignoring which instruction caused it.

When to use: Use this when you know the error should occur but don’t care which instruction produced it. Perfect for single-instruction transactions or when testing general error conditions.

When not to use: When you need to verify the error occurs at a specific instruction index to test precise error handling - use demand_system_error_at_index instead.

Arguments

• expected_error - The expected system error
• result - The result of executing a transaction via litesvm::LiteSVM::send_transaction