test: add unit test for tag() and head()

based on 660d93c

package.json

@@ -4,8 +4,9 @@
   "description": "Facebook comments plugin for Hexo!",
   "main": "index.js",
   "scripts": {
-    "test": "yarn run lint",
-    "lint": "eslint ."
+    "test": "yarn run lint && yarn run mocha",
+    "lint": "eslint .",
+    "mocha": "mocha --exit"
   },
   "repository": {
     "type": "git",
@@ -29,8 +30,8 @@
   },
   "homepage": "https://github.com/hms5232/hexo-tag-fb-comments#readme",
   "funding": {
-    "type" : "individual",
-    "url" : "https://ko-fi.com/hms5232"
+    "type": "individual",
+    "url": "https://ko-fi.com/hms5232"
   },
   "files": [
     "*.js"
@@ -39,7 +40,9 @@
     "hexo": ">=5.0.0"
   },
   "devDependencies": {
+    "chai": "^4.3.7",
     "eslint": "^8.8.0",
-    "eslint-config-google": "^0.14.0"
+    "eslint-config-google": "^0.14.0",
+    "mocha": "^10.2.0"
   }
 }

test/head.test.js

@@ -0,0 +1,18 @@
+const assert = require('chai').assert; // 使用 chai 的斷言
+
+describe('#fbCommentsHead()', () => {
+  it('disable', function() {
+    const head = require('../head')({});
+
+    assert.equal(head(), '');
+  });
+
+  it('enable', function() {
+    const head = require('../head')({appId: 5232, lang: 'zh_TW'});
+
+    const result = head();
+    assert.include(result, '<meta property="fb:app_id" content="5232" />');
+    assert.include(result, '<div id="fb-root"></div>');
+    assert.include(result, '<script async defer crossorigin="anonymous" src="https://connect.facebook.net/zh_TW/sdk.js#xfbml=1&version=v12.0"></script>');
+  });
+});

test/tag.test.js

@@ -0,0 +1,25 @@
+const assert = require('chai').assert; // 使用 chai 的斷言
+
+describe('#fbComments()', () => {
+  it('disable', function() {
+    const tag = require('../tag')({});
+
+    assert.equal(tag(), '');
+  });
+
+  it('enable', function() {
+    const tag = require('../tag')({
+      width: '100%',
+      numPosts: '7',
+      orderBy: 'reverse_time',
+      colorscheme: 'dark',
+    });
+
+    assert.include(tag(), '<div class="fb-comments"');
+    assert.include(tag(), 'data-width="100%"');
+    assert.include(tag(), 'data-numposts="7"');
+    assert.include(tag(), 'data-order-by="reverse_time"');
+    assert.include(tag(), 'data-colorscheme="dark"');
+    assert.include(tag(), '></div>');
+  });
+});