fix(tui): stop evicting unrelated default keybindings closes #2455

packages/tui/test/keybindings.test.ts

@@ -0,0 +1,38 @@
+import assert from "node:assert";
+import { describe, it } from "node:test";
+import { KeybindingsManager, TUI_KEYBINDINGS } from "../src/keybindings.js";
+
+describe("KeybindingsManager", () => {
+	it("does not evict selector confirm when input submit is rebound", () => {
+		const keybindings = new KeybindingsManager(TUI_KEYBINDINGS, {
+			"tui.input.submit": ["enter", "ctrl+enter"],
+		});
+
+		assert.deepStrictEqual(keybindings.getKeys("tui.input.submit"), ["enter", "ctrl+enter"]);
+		assert.deepStrictEqual(keybindings.getKeys("tui.select.confirm"), ["enter"]);
+	});
+
+	it("does not evict cursor bindings when another action reuses the same key", () => {
+		const keybindings = new KeybindingsManager(TUI_KEYBINDINGS, {
+			"tui.select.up": ["up", "ctrl+p"],
+		});
+
+		assert.deepStrictEqual(keybindings.getKeys("tui.select.up"), ["up", "ctrl+p"]);
+		assert.deepStrictEqual(keybindings.getKeys("tui.editor.cursorUp"), ["up"]);
+	});
+
+	it("still reports direct user binding conflicts without evicting defaults", () => {
+		const keybindings = new KeybindingsManager(TUI_KEYBINDINGS, {
+			"tui.input.submit": "ctrl+x",
+			"tui.select.confirm": "ctrl+x",
+		});
+
+		assert.deepStrictEqual(keybindings.getConflicts(), [
+			{
+				key: "ctrl+x",
+				keybindings: ["tui.input.submit", "tui.select.confirm"],
+			},
+		]);
+		assert.deepStrictEqual(keybindings.getKeys("tui.editor.cursorLeft"), ["left", "ctrl+b"]);
+	});
+});