test: fix import code snippet test (#1398)

Author: shigma

packages/@vuepress/markdown/__tests__/__snapshots__/snippet.spec.js.snap

@@ -10,11 +10,18 @@ exports[`snippet import snippet 1`] = `
 exports[`snippet import snippet with highlight multiple lines 1`] = `
 <div class="highlight-lines">
   <div class="highlighted">&nbsp;</div>
-</div>
+  <div class="highlighted">&nbsp;</div>
+  <div class="highlighted">&nbsp;</div><br>
+</div>export default function () {
+// ..
+}
 `;
 
 exports[`snippet import snippet with highlight single line 1`] = `
 <div class="highlight-lines">
-  <div class="highlighted">&nbsp;</div>
-</div>
+  <div class="highlighted">&nbsp;</div><br>
+  <div class="highlighted">&nbsp;</div><br>
+</div>export default function () {
+// ..
+}
 `;

packages/@vuepress/markdown/__tests__/snippet.spec.js

@@ -4,7 +4,7 @@ import snippet from '../lib/snippet.js'
 import highlightLines from '../lib/highlightLines.js'
 
 const md = Md().use(snippet)
-const mdH = Md().use(snippet).use(highlightLines)
+const mdH = Md().use(highlightLines).use(snippet)
 
 describe('snippet', () => {
   test('import snippet', () => {

scripts/test.js

@@ -13,12 +13,11 @@ if (args.p) {
   rawArgs.splice(i, 2)
 }
 
-const jestRunner = createJestRunner(
-  [
-    '--config', 'scripts/jest.config.js',
-    '--runInBand',
-    ...(regex ? [regex] : [])
-  ])
+const jestRunner = createJestRunner([
+  '--config', 'scripts/jest.config.js',
+  '--runInBand',
+  ...(regex ? [regex] : [])
+])
 
 // ensure the basic temp files were genereatod
 createApp({