enhance(frontend): niraxにテストを追加 (#17287)

* fix(frontend): follow-up of #13509

* fix: fix use of inappropriate method

* enhance(frontend): niraxにテストを追加

packages/frontend/test/lib/nirax/fallbacks.test.ts

@@ -0,0 +1,90 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { assert, describe, test } from 'vitest';
+import { createRouter, loginFallbackComponent } from './fixture.js';
+
+describe('[NIRAX] フォールバック', () => {
+	test('pushの際、ページが見つからなかったらforcePushを発火する', () => {
+		const router = createRouter('/');
+		const forcePushes: string[] = [];
+
+		router.addListener('forcePush', ctx => {
+			forcePushes.push(ctx.fullPath);
+			assert.strictEqual(ctx.onInit, false);
+		});
+
+		router.init();
+
+		router.pushByPath('/missing');
+
+		assert.deepStrictEqual(forcePushes, ['/missing']);
+		assert.strictEqual(router.getCurrentFullPath(), '/');
+		assert.strictEqual(router.current.route.path, '/');
+	});
+
+	test('replaceの際、ページが見つからなかったらforceReplaceを発火する', () => {
+		const router = createRouter('/');
+		const forceReplacements: string[] = [];
+
+		router.addListener('forceReplace', ctx => {
+			forceReplacements.push(ctx.fullPath);
+			assert.strictEqual(ctx.onInit, false);
+		});
+
+		router.init();
+
+		router.replaceByPath('/also-missing');
+
+		assert.deepStrictEqual(forceReplacements, ['/also-missing']);
+		assert.strictEqual(router.getCurrentFullPath(), '/');
+		assert.strictEqual(router.current.route.path, '/');
+	});
+
+	test('初期ページが見つからない場合でも初回はforceReplaceを発火しない', () => {
+		const router = createRouter('/missing');
+		const forceReplacements: string[] = [];
+
+		router.addListener('forceReplace', ctx => {
+			forceReplacements.push(ctx.fullPath);
+			assert.strictEqual(ctx.onInit, true);
+		});
+
+		router.init();
+
+		assert.deepStrictEqual(forceReplacements, []); // 初回はforceReplaceを発火しない
+		assert.strictEqual(router.getCurrentFullPath(), '/missing');
+		assert.strictEqual(router.current.route.path, '/:(*)');
+	});
+
+	test('初期ページが見つからない場合でも、initで明示した場合はforceReplaceを発火する', () => {
+		const router = createRouter('/missing');
+		const forceReplacements: string[] = [];
+
+		router.addListener('forceReplace', ctx => {
+			forceReplacements.push(ctx.fullPath);
+			assert.strictEqual(ctx.onInit, true);
+		});
+
+		router.init(true); // forceReplaceを強制的に発火させる
+
+		assert.deepStrictEqual(forceReplacements, ['/missing']);
+		assert.strictEqual(router.getCurrentFullPath(), '/missing');
+		assert.strictEqual(router.current.route.path, '/:(*)');
+	});
+
+	test('loginRequiredなルートではコンポーネントを差し替えてshowLoginPopupを設定する', () => {
+		const router = createRouter('/', false);
+
+		router.init();
+
+		router.pushByPath('/private');
+
+		assert.strictEqual(router.current.route.path, '/private');
+		assert.ok('component' in router.current.route);
+		assert.strictEqual(router.current.route.component, loginFallbackComponent);
+		assert.strictEqual(router.current.props.get('showLoginPopup'), true);
+	});
+});