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NetMesh/components/terminal/runtime/altKeyOptions.test.ts

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import test from "node:test";
import assert from "node:assert/strict";
import { terminalAltKeyOptions } from "./altKeyOptions";
// Issue #1078: with "Use Option as Meta key" enabled, macOS Option must send
// ESC-prefixed (Meta) sequences. xterm.js gates that on `macOptionIsMeta`. The
// flag was read from settings but only ever wired to the mouse alt-click
// behavior, so Option kept emitting layout characters (ƒ, ∫, …) instead of Meta.
test("Option-as-Meta enabled: Option emits Meta and alt-click cursor move is disabled", () => {
assert.deepEqual(terminalAltKeyOptions(true), {
macOptionIsMeta: true,
altClickMovesCursor: false,
});
});
test("Option-as-Meta disabled: xterm keeps default macOS Option behavior", () => {
assert.deepEqual(terminalAltKeyOptions(false), {
macOptionIsMeta: false,
altClickMovesCursor: true,
});
});