1 files changed, 31 insertions, 0 deletions
diff --git a/devtools/client/inspector/rules/test/browser_rules_inactive_css_split-condition.js b/devtools/client/inspector/rules/test/browser_rules_inactive_css_split-condition.js
new file mode 100644
index 0000000000..d03bcd9e63
--- /dev/null
+++ b/devtools/client/inspector/rules/test/browser_rules_inactive_css_split-condition.js
@@ -0,0 +1,31 @@
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test that a CSS property is marked as inactive when a condition
+// changes in other CSS rule matching the element.
+
+const TEST_URI = `
+<style>
+  .display {
+    display: grid;
+  }
+  .gap {
+    gap: 1em;
+  }
+</style>
+<div class="display gap">`;
+
+add_task(async function () {
+  await pushPref("devtools.inspector.inactive.css.enabled", true);
+  await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
+  const { inspector, view } = await openRuleView();
+
+  await selectNode("div", inspector);
+
+  await checkDeclarationIsActive(view, 1, { gap: "1em" });
+  await toggleDeclaration(view, 2, { display: "grid" });
+  await checkDeclarationIsInactive(view, 1, { gap: "1em" });
+});