Add test for performance

Related-to: syntax-tree/mdast-util-to-hast#62. Co-authored-by: Nathaniel Hunter <42shadow42@gmail.com>
wooorm · Jun 25, 2022 · 321dc64 · 321dc64 · 42shadow42 · Jun 25, 2022
1 parent 2832244
commit 321dc64
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/test.js b/test.js
@@ -11,3 +11,21 @@ test('trimLines(value)', function (t) {
   )
   t.end()
 })
+
+test('efficiency', (t) => {
+  const aTonOfWhitespace = 'a' + ' '.repeat(70_000) + 'b'
+  const timeoutId = setTimeout(() => {
+    t.fail('should process lots of whitespace efficiently')
+  }, 10)
+
+  t.deepEqual(
+    trimLines(aTonOfWhitespace),
+    aTonOfWhitespace,
+    'should be efficient on excessive whitespace'
+  )
+
+  setTimeout(() => {
+    clearTimeout(timeoutId)
+    t.end()
+  }, 0)
+})