Centralize Key Binding Logic and Refactor (Reopen) (#5356)

Co-authored-by: Lee-WonJun <10369528+Lee-WonJun@users.noreply.github.com>

packages/cli/src/config/keyBindings.test.ts

@@ -0,0 +1,62 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { describe, it, expect } from 'vitest';
+import {
+  Command,
+  KeyBindingConfig,
+  defaultKeyBindings,
+} from './keyBindings.js';
+
+describe('keyBindings config', () => {
+  describe('defaultKeyBindings', () => {
+    it('should have bindings for all commands', () => {
+      const commands = Object.values(Command);
+
+      for (const command of commands) {
+        expect(defaultKeyBindings[command]).toBeDefined();
+        expect(Array.isArray(defaultKeyBindings[command])).toBe(true);
+      }
+    });
+
+    it('should have valid key binding structures', () => {
+      for (const [_, bindings] of Object.entries(defaultKeyBindings)) {
+        for (const binding of bindings) {
+          // Each binding should have either key or sequence, but not both
+          const hasKey = binding.key !== undefined;
+          const hasSequence = binding.sequence !== undefined;
+
+          expect(hasKey || hasSequence).toBe(true);
+          expect(hasKey && hasSequence).toBe(false);
+
+          // Modifier properties should be boolean or undefined
+          if (binding.ctrl !== undefined) {
+            expect(typeof binding.ctrl).toBe('boolean');
+          }
+          if (binding.shift !== undefined) {
+            expect(typeof binding.shift).toBe('boolean');
+          }
+          if (binding.command !== undefined) {
+            expect(typeof binding.command).toBe('boolean');
+          }
+          if (binding.paste !== undefined) {
+            expect(typeof binding.paste).toBe('boolean');
+          }
+        }
+      }
+    });
+
+    it('should export all required types', () => {
+      // Basic type checks
+      expect(typeof Command.HOME).toBe('string');
+      expect(typeof Command.END).toBe('string');
+
+      // Config should be readonly
+      const config: KeyBindingConfig = defaultKeyBindings;
+      expect(config[Command.HOME]).toBeDefined();
+    });
+  });
+});