assertLogged method
Assert that at least one entry matches both level and message.
Throws AssertionError if no matching entry is found.
Implementation
void assertLogged(String level, String message) {
final matched = _driver._entries.any(
(e) => e.level == level && e.message == message,
);
if (!matched) {
throw AssertionError(
'Expected a log entry at level "$level" with message "$message" '
'but none was found.',
);
}
}