From c678d91fe031dce45d5bb6182f58377940fb397d Mon Sep 17 00:00:00 2001
From: Adam Wathan <adam.wathan@gmail.com>
Date: Mon, 4 Jun 2018 08:49:36 -0400
Subject: [PATCH] Test that class names in apply directives are escaped

---
 __tests__/applyAtRule.test.js | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/__tests__/applyAtRule.test.js b/__tests__/applyAtRule.test.js
index 44673d3d8..386925afa 100644
--- a/__tests__/applyAtRule.test.js
+++ b/__tests__/applyAtRule.test.js
@@ -14,6 +14,23 @@ test("it copies a class's declarations into itself", () => {
   })
 })
 
+test('selectors with invalid characters do not need to be manually escaped', () => {
+  const input = `
+    .a\\:1\\/2 { color: red; }
+    .b { @apply .a:1/2; }
+  `
+
+  const expected = `
+    .a\\:1\\/2 { color: red; }
+    .b { color: red; }
+  `
+
+  return run(input).then(result => {
+    expect(result.css).toEqual(expected)
+    expect(result.warnings().length).toBe(0)
+  })
+})
+
 test('it removes important from applied classes by default', () => {
   const input = `
     .a { color: red !important; }