clitest_spawn/send_line/send_partial/send_tab/send_signal/wait_for_text/
wait_for_exit/kill_and_reap launch the real compiled xce_test behind a
genuine pty (so isatty/g_interactive/libedit behave as a real terminal),
with stderr routed to a separate pipe for real stream-separation testing.
All waits are poll()-bounded with an explicit timeout so a future
regression can't hang the whole test suite. This is the shared
infrastructure tasks 2.3, 3.5, and all of Validation phase (4.1-4.4)
will build their black-box scenarios on top of. One smoke test proves
launch/send/capture/exit-code/stream-separation end to end.
1290/1290 controller suite passing (+1).
Task 1.7 of .kiro/specs/xce-test-cli-ux/tasks.md.
Foundation phase (1.1-1.7) now complete.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019jaMf9QEwpugH2W9KAuc7f
argp already provided --help/-?/--version with exit-without-REPL
behavior, but had no -h alias (its default short help flag is -? per
GNU argp convention) despite Requirement 4.1 naming -h explicitly.
Added a hidden -h option triggering the same help path, and extended
the doc string to describe the in-session help command. Proven against
the real compiled binary via subprocess tests, not just argp's own
in-process behavior. 1289/1289 controller suite passing (+4).
Task 1.6 of .kiro/specs/xce-test-cli-ux/tasks.md.
Requirements: 4.1, 4.2, 4.3
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019jaMf9QEwpugH2W9KAuc7f
