challenge/recorder part2 test

[ofux]

Recorder Test Generation Task

Objective

Generate comprehensive tests for the QueuedRecorder (in deluge/recorder.go) to achieve very good code coverage. The tests must be written in a NEW test file and all test functions MUST start with Test__Verifier__.
Note that the tests might be run with the -race option.

Test Function Naming Convention

All test functions MUST follow this exact pattern:

func Test__Verifier__<descriptive_name>(t *testing.T) {
    // test implementation
}