1 files changed, 49 insertions, 0 deletions
diff --git a/devtools/client/inspector/components/test/browser_boxmodel_rotate-labels-on-sides.js b/devtools/client/inspector/components/test/browser_boxmodel_rotate-labels-on-sides.js
new file mode 100644
index 000000000..954cd298b
--- /dev/null
+++ b/devtools/client/inspector/components/test/browser_boxmodel_rotate-labels-on-sides.js
@@ -0,0 +1,49 @@
+/* vim: set 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 longer values are rotated on the side
+
+const res1 = [
+  {selector: ".boxmodel-margin.boxmodel-top > span", value: 30},
+  {selector: ".boxmodel-margin.boxmodel-left > span", value: "auto"},
+  {selector: ".boxmodel-margin.boxmodel-bottom > span", value: 30},
+  {selector: ".boxmodel-margin.boxmodel-right > span", value: "auto"},
+  {selector: ".boxmodel-padding.boxmodel-top > span", value: 20},
+  {selector: ".boxmodel-padding.boxmodel-left > span", value: 2000000},
+  {selector: ".boxmodel-padding.boxmodel-bottom > span", value: 20},
+  {selector: ".boxmodel-padding.boxmodel-right > span", value: 20},
+  {selector: ".boxmodel-border.boxmodel-top > span", value: 10},
+  {selector: ".boxmodel-border.boxmodel-left > span", value: 10},
+  {selector: ".boxmodel-border.boxmodel-bottom > span", value: 10},
+  {selector: ".boxmodel-border.boxmodel-right > span", value: 10},
+];
+
+const TEST_URI = encodeURIComponent([
+  "<style>",
+  "div { border:10px solid black; padding: 20px 20px 20px 2000000px; " +
+  "margin: 30px auto; }",
+  "</style>",
+  "<div></div>"
+].join(""));
+const LONG_TEXT_ROTATE_LIMIT = 3;
+
+add_task(function* () {
+  yield addTab("data:text/html," + TEST_URI);
+  let {inspector, view} = yield openBoxModelView();
+  yield selectNode("div", inspector);
+
+  for (let i = 0; i < res1.length; i++) {
+    let elt = view.doc.querySelector(res1[i].selector);
+    let isLong = elt.textContent.length > LONG_TEXT_ROTATE_LIMIT;
+    let classList = elt.parentNode.classList;
+    let canBeRotated = classList.contains("boxmodel-left") ||
+                       classList.contains("boxmodel-right");
+    let isRotated = classList.contains("boxmodel-rotate");
+
+    is(canBeRotated && isLong,
+      isRotated, res1[i].selector + " correctly rotated.");
+  }
+});