1 files changed, 41 insertions, 0 deletions
diff --git a/devtools/client/shared/test/xpcshell/test_escapeCSSComment.js b/devtools/client/shared/test/xpcshell/test_escapeCSSComment.js
new file mode 100644
index 0000000000..7a77cc7e88
--- /dev/null
+++ b/devtools/client/shared/test/xpcshell/test_escapeCSSComment.js
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const {
+  escapeCSSComment,
+  unescapeCSSComment,
+} = require("resource://devtools/shared/css/parsing-utils.js");
+
+const TEST_DATA = [
+  {
+    input: "simple",
+    expected: "simple",
+  },
+  {
+    input: "/* comment */",
+    expected: "/\\* comment *\\/",
+  },
+  {
+    input: "/* two *//* comments */",
+    expected: "/\\* two *\\//\\* comments *\\/",
+  },
+  {
+    input: "/* nested /\\* comment *\\/ */",
+    expected: "/\\* nested /\\\\* comment *\\\\/ *\\/",
+  },
+];
+
+function run_test() {
+  let i = 0;
+  for (const test of TEST_DATA) {
+    ++i;
+    info("Test #" + i);
+
+    const escaped = escapeCSSComment(test.input);
+    equal(escaped, test.expected);
+    const unescaped = unescapeCSSComment(escaped);
+    equal(unescaped, test.input);
+  }
+}