[READ-ONLY] Mirror of https://github.com/bombshell-dev/tty. Platform independent 2D layout engine for terminal applications based on Clay
🧪 test(term): document v1 limitation for caret on empty text
Charles Lowell
(Jul 2, 2026, 6:29 PM +0300)
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test/term.test.ts
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test/term.test.ts
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expect(ansi).not.toContain("\x1b[?25l");
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});
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it("shows the cursor at the text origin when content is empty and caret is 0", () => {
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// v1 known limitation: Clay does not emit a text render command for an
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// empty string, so locate_caret never finds a matching slice and suppresses
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// cursor visibility. The proper fix requires looking up the element's
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// bounding box separately (e.g. via get_element_bounds) rather than
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// scanning text render commands. Until that is implemented, no cursor
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// appears when the caret-bearing text node is empty.
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let ansi = decode(
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term.render([
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open("root", {
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layout: { width: grow(), height: grow(), direction: "ttb" },
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}),
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text("", { caret: 0 }),
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close(),
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]).output,
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);
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expect(ansi).not.toContain("\x1b[?25h");
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expect(ansi).not.toContain("\x1b[?25l");
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});
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it("hides the cursor when transitioning from caret-present to caret-absent", () => {
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// First frame: caret declared.
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term.render([