Function TestInlineStatusRuneBoundaryTruncate

internal/tools/bash_test.go:270–279

TestInlineStatusRuneBoundaryTruncate: truncating a long non-ASCII command at a fixed byte offset can split a multi-byte rune, leaving an orphan continuation byte the TUI prints as invalid UTF-8. The cut must snap back to a rune boundary, trading a couple chars off the byte budget for valid UTF-8.

(t *testing.T)

// TestInlineStatusRuneBoundaryTruncate: truncating a long non-ASCII command at
// a fixed byte offset can split a multi-byte rune, leaving an orphan
// continuation byte the TUI prints as invalid UTF-8. The cut must snap back to
// a rune boundary, trading a couple chars off the byte budget for valid UTF-8.
func TestInlineStatusRuneBoundaryTruncate(t *testing.T) {
	cmd := strings.Repeat("ä", 100) + " end" // 200+ bytes of 2-byte runes
	s := InlineStatus(chmctx.ToolCall{
		Name:      "bash",
		Arguments: map[string]any{"cmd": cmd},
	})
	if !utf8.ValidString(s) {
		t.Fatalf("InlineStatus produced invalid UTF-8 (cut mid-rune): %q", s)
	}
}