Function TestStreamContentShowsLiveInViewport

internal/tui/tui_test.go:2455–2472

TestStreamContentShowsLiveInViewport: a mid-turn content event populates the streaming buffer, promotes phase thinking→streaming, and is visible in View() before any EventDone: the "tokens stream immediately" promise.

(t *testing.T)

		t.Fatalf("after submit the textarea should collapse to 1 line, got %d", got)
	}
}

// stripANSI removes CSI escape sequences (`\x1b[…m`) so tests can match the
// visible text through glamour's per-word styling, which splits "foo bar" into
// `<span>foo</span> <span>bar</span>` and breaks a naive Contains("foo bar").
func stripANSI(s string) string {
	var b strings.Builder
	for i := 0; i < len(s); i++ {
		if s[i] == 0x1b && i+1 < len(s) && s[i+1] == '[' {
			for j := i + 2; j < len(s); j++ {
				if s[j] >= 0x40 && s[j] <= 0x7e {
					i = j
					break
				}
			}
			continue
		}
		b.WriteByte(s[i])
	}
	return b.String()
}