test: Add meta_generator

hexojs · Oct 28, 2018 · 96595e4 · 96595e4
1 parent 0853115
commit 96595e4
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Showing 3 changed files with 31 additions and 2 deletions.
diff --git a/lib/plugins/filter/meta_generator.js b/lib/plugins/filter/meta_generator.js
@@ -9,9 +9,9 @@ function hexoMetaGeneratorInject(data) {
 
   if (!($('meta[name="generator"]').length > 0) && $('head').contents().length > 0) {
     $('head').prepend(hexoGeneratorTag.replace('%s', this.version));
-
-    return $.html();
   }
+
+  return $.html();
 }
 
 module.exports = hexoMetaGeneratorInject;
diff --git a/test/scripts/filters/index.js b/test/scripts/filters/index.js
@@ -5,6 +5,7 @@ describe('Filters', () => {
   require('./excerpt');
   require('./external_link');
   require('./i18n_locals');
+  require('./meta_generator');
   require('./new_post_path');
   require('./post_permalink');
   require('./render_post');

diff --git a/test/scripts/filters/meta_generator.js b/test/scripts/filters/meta_generator.js
@@ -0,0 +1,28 @@
+'use strict';
+
+const should = require('chai').should(); // eslint-disable-line
+
+describe('Meta Generator', function() {
+  const Hexo = require('../../../lib/hexo');
+  const hexo = new Hexo();
+  const metaGenerator = require('../../../lib/plugins/filter/meta_generator').bind(hexo);
+  const cheerio = require('cheerio');
+
+  it('default', function() {
+    const content = '<head><link></head>';
+    const result = metaGenerator(content);
+
+    const $ = cheerio.load(result);
+    $('meta[name="generator"]').length.should.eql(1);
+  });
+
+  it('empty <head>', function() {
+    const content = '<head></head>';
+    const result = metaGenerator(content);
+
+    const $ = cheerio.load(result);
+    // meta generator should not be prepended if <head> tag is empty
+    // see https://github.com/hexojs/hexo/pull/3315
+    $('meta[name="generator"]').length.should.eql(0);
+  });
+});