Function drainFinal

internal/tui/tui_test.go:3337–3342

drainFinal submits a prompt and pumps the whole turn to completion, returning the settled model. Centralises the submit+drain dance the empty-reply tests share.

(t *testing.T, m Model, prompt string)

}

// TestEmptyReplyNudgeReArmsAfterProgress pins the galaxy1 fix: once an empty
// reply has nudged this turn, a round that issues a real tool call is genuine
// progress and must re-arm the latch, so a LATER transient empty on the same
// long turn earns its own re-prompt instead of hitting the leak-and-die branch.
// A flaky stream that drops the occasional call must not abandon a half-built
// file. Two CONSECUTIVE empties (no tool call between) still terminate: that
// path has pending=0 and so never reaches the re-arm.
func TestEmptyReplyNudgeReArmsAfterProgress(t *testing.T) {
	m := newTestModel(t, func(http.ResponseWriter, *http.Request) {})