Function stripANSI

internal/tui/tui_test.go:2435–2450

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 ` foo bar ` and breaks a naive Contains("foo bar").

(s string)

		t.Fatalf("long wrapped line should expand textarea past 1 row, got %d", got)
	}
}

// TestPromptAutoGrowsWithContent: the textarea starts at 1 line, grows with
// newlines, and clamps to height - minViewport - 2 - popover, so big pastes use
// most of the screen while chat keeps its floor.
func TestPromptAutoGrowsWithContent(t *testing.T) {
	m := newTestModel(t, func(http.ResponseWriter, *http.Request) {})
	if m.ta.Height() != 1 {
		t.Fatalf("empty prompt should be 1 line, got %d", m.ta.Height())
	}

	m.ta.SetValue("line1\nline2\nline3\nline4")
	m.recomputeLayout()
	if got := m.ta.Height(); got != 4 {
		t.Fatalf("4 lines in textarea should produce height 4, got %d", got)
	}

	// Far past the cap, height must clamp to leave room for chat. With
	// newTestModel's 30-row terminal, cap = 30 - 5 - 2 - 0 = 23.