1 files changed, 86 insertions, 0 deletions
diff --git a/devtools/client/inspector/rules/test/browser_rules_computed-lists_02.js b/devtools/client/inspector/rules/test/browser_rules_computed-lists_02.js
new file mode 100644
index 0000000000..3d59baea68
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+++ b/devtools/client/inspector/rules/test/browser_rules_computed-lists_02.js
@@ -0,0 +1,86 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests that the rule view computed lists can be expanded/collapsed,
+// and contain the right subproperties.
+
+var TEST_URI = `
+  <style type="text/css">
+    #testid {
+      margin: 0px 1px 2px 3px;
+      top: 0px;
+    }
+  </style>
+  <h1 id="testid">Styled Node</h1>
+`;
+
+add_task(async function () {
+  await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
+  const { inspector, view } = await openRuleView();
+  await selectNode("#testid", inspector);
+  await testComputedList(inspector, view);
+});
+
+function testComputedList(inspector, view) {
+  const prop = getTextProperty(view, 1, { margin: "0px 1px 2px 3px" });
+  const propEditor = prop.editor;
+  const expander = propEditor.expander;
+
+  ok(!expander.hasAttribute("open"), "margin computed list is closed");
+
+  info("Opening the computed list of margin property");
+  expander.click();
+  ok(expander.hasAttribute("open"), "margin computed list is open");
+
+  const computed = propEditor.prop.computed;
+  const computedDom = propEditor.computed;
+  const propNames = [
+    "margin-top",
+    "margin-right",
+    "margin-bottom",
+    "margin-left",
+  ];
+
+  is(computed.length, propNames.length, "There should be 4 computed values");
+  is(
+    computedDom.children.length,
+    propNames.length,
+    "There should be 4 nodes in the DOM"
+  );
+
+  propNames.forEach((propName, i) => {
+    const propValue = i + "px";
+    is(
+      computed[i].name,
+      propName,
+      "Computed property #" + i + " has name " + propName
+    );
+    is(
+      computed[i].value,
+      propValue,
+      "Computed property #" + i + " has value " + propValue
+    );
+    is(
+      computedDom.querySelectorAll(".ruleview-propertyname")[i].textContent,
+      propName,
+      "Computed property #" + i + " in DOM has correct name"
+    );
+    is(
+      computedDom.querySelectorAll(".ruleview-propertyvalue")[i].textContent,
+      propValue,
+      "Computed property #" + i + " in DOM has correct value"
+    );
+  });
+
+  info("Closing the computed list of margin property");
+  expander.click();
+  ok(!expander.hasAttribute("open"), "margin computed list is closed");
+
+  info("Opening the computed list of margin property");
+  expander.click();
+  ok(expander.hasAttribute("open"), "margin computed list is open");
+  is(computed.length, propNames.length, "Still 4 computed values");
+  is(computedDom.children.length, propNames.length, "Still 4 nodes in the DOM");
+}