Unit Test Specifications
Exercise the RecordingWidgetState.formattedElapsedTime getter with a range of recorded-duration values and assert the returned string is the zero-padded HH:MM:SS representation of that duration.
For a seeded elapsedTime the getter returns hours, minutes, and seconds, each zero-padded to two digits and joined by colons: Duration.zero yields "00:00:00"; 1 minute 5 seconds yields "00:01:05"; 1 hour 1 minute 1 second yields "01:01:01"; and hours are not wrapped at 24 (100 hours yields "100:00:00").
ae3855a7b171f5f34e0094b9b1a986dd607504e3737a532edf03b7bb50c97f57
@DougYoungberg
Test file: test/unit/domain/entities/ui/recording_widget_state_test.dart, in the UT-001-prefixed test case (the test name carries the UID prefix for the Flutter/JUnit join channel). Verifies the SRS-013 recorded-duration format at the unit tier (Class-B UT-to-SRS asymmetry); the widget-render integration is covered by IT-008 and the running-application presentation by ST-009.