verifyNotNull function
Verify that a value is not null.
Example:
verifyNotNull(result, 'Result should not be null');
Returns true if the verification passed, false otherwise.
Implementation
bool verifyNotNull(Object? value, [String? message]) {
if (value == null) {
final msg = message ?? 'Expected non-null value';
_verificationFailures.add(msg);
return false;
}
return true;
}