1 files changed, 32 insertions, 0 deletions
diff --git a/devtools/client/styleeditor/test/browser_styleeditor_import_rule.js b/devtools/client/styleeditor/test/browser_styleeditor_import_rule.js
new file mode 100644
index 0000000000..1aba71634c
--- /dev/null
+++ b/devtools/client/styleeditor/test/browser_styleeditor_import_rule.js
@@ -0,0 +1,32 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+// Test that style editor shows sheets loaded with @import rules.
+
+// http rather than chrome to improve coverage
+const TESTCASE_URI = TEST_BASE_HTTPS + "import.html";
+
+add_task(async function () {
+  const { ui } = await openStyleEditorForURL(TESTCASE_URI);
+
+  is(ui.editors.length, 3, "there are 3 stylesheets after loading @imports");
+
+  is(
+    ui.editors[0].styleSheet.href,
+    TEST_BASE_HTTPS + "simple.css",
+    "stylesheet 1 is simple.css"
+  );
+
+  is(
+    ui.editors[1].styleSheet.href,
+    TEST_BASE_HTTPS + "import.css",
+    "stylesheet 2 is import.css"
+  );
+
+  is(
+    ui.editors[2].styleSheet.href,
+    TEST_BASE_HTTPS + "import2.css",
+    "stylesheet 3 is import2.css"
+  );
+});