Austin Horstman
560f02509b
Add focused coverage for the new GLib command stream helper. These tests verify that complete lines are emitted as they arrive and that EOF flushes a final unterminated line without duplicating a newline-terminated one. That behavior is the contract the custom module will rely on when its continuous command handling moves onto this helper. Signed-off-by: Austin Horstman <khaneliman12@gmail.com>