feat(build): Added createCheckDuplicateId test.

packages/build/src/utils/createCheckDuplicateId.test.js

@@ -0,0 +1,55 @@
+/*
+  Copyright 2020-2021 Lowdefy, Inc
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+import createCheckDuplicateId from './createCheckDuplicateId';
+
+test('checkDuplicateId return value', async () => {
+  const checkDuplicateId = createCheckDuplicateId({
+    message: 'Duplicate id "{{ id }}".',
+  });
+  expect(checkDuplicateId({ id: 'id' })).toBe(undefined);
+});
+
+test('throw on duplicate ids', async () => {
+  const checkDuplicateId = createCheckDuplicateId({
+    message: 'Duplicate id "{{ id }}".',
+  });
+  checkDuplicateId({ id: 'id' });
+  checkDuplicateId({ id: 'id_2' });
+  expect(() => checkDuplicateId({ id: 'id' })).toThrow('Duplicate id "id".');
+});
+
+test('Error message nunjucks variables', async () => {
+  const checkDuplicateId = createCheckDuplicateId({
+    message: '{{ id }} {{ blockId }} {{ eventId }} {{ menuId }} {{ pageId }}',
+  });
+  checkDuplicateId({
+    id: 'id',
+    blockId: 'blockId',
+    eventId: 'eventId',
+    menuId: 'menuId',
+    pageId: 'pageId',
+  });
+  expect(() =>
+    checkDuplicateId({
+      id: 'id',
+      blockId: 'blockId',
+      eventId: 'eventId',
+      menuId: 'menuId',
+      pageId: 'pageId',
+    })
+  ).toThrow('id blockId eventId menuId pageId');
+});