1 files changed, 86 insertions, 0 deletions
diff --git a/devtools/server/tests/chrome/inactive-property-helper/text-wrap.mjs b/devtools/server/tests/chrome/inactive-property-helper/text-wrap.mjs
new file mode 100644
index 0000000000..58751aa764
--- /dev/null
+++ b/devtools/server/tests/chrome/inactive-property-helper/text-wrap.mjs
@@ -0,0 +1,86 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// InactivePropertyHelper `text-wrap: balance` test cases.
+const LOREM_IPSUM = `
+  Lorem ipsum dolor sit amet, consectetur adipiscing elit.
+  Donec a diam lectus. Sed sit amet ipsum mauris.
+  Maecenas congue ligula ac quam viverra nec consectetur ante hendrerit.
+`;
+
+export default [
+  {
+    info: "text-wrap: balance; is inactive when line number exceeds threshold",
+    property: "text-wrap",
+    createTestElement: rootNode => {
+      const element = document.createElement("div");
+      element.textContent = LOREM_IPSUM;
+      rootNode.append(element);
+      return element;
+    },
+    tagName: "div",
+    rules: ["div { text-wrap: balance; width: 100px; }"],
+    isActive: false,
+  },
+  {
+    info: "text-wrap: balance; is active when line number is below threshold",
+    property: "text-wrap",
+    createTestElement: rootNode => {
+      const element = document.createElement("div");
+      element.textContent = LOREM_IPSUM;
+      rootNode.append(element);
+      return element;
+    },
+    tagName: "div",
+    rules: ["div { text-wrap: balance; width: 300px; }"],
+    isActive: true,
+  },
+  {
+    info: "text-wrap: balance is inactive when element is fragmented",
+    property: "text-wrap",
+    createTestElement: rootNode => {
+      const element = document.createElement("div");
+      element.textContent = `
+        Lorem ipsum dolor sit amet, consectetur adipiscing elit.
+        Donec a diam lectus. Sed sit amet ipsum mauris.
+        Maecenas congue ligula ac quam viverra nec consectetur ante hendrerit.
+      `;
+      rootNode.append(element);
+      return element;
+    },
+    tagName: "div",
+    rules: ["div { text-wrap: balance; column-count: 2; }"],
+    isActive: false,
+  },
+  {
+    info: "text-wrap: balance; does not throw if element is not a block",
+    property: "text-wrap",
+    createTestElement: rootNode => {
+      const element = document.createElement("div");
+      element.textContent = LOREM_IPSUM;
+      rootNode.append(element);
+      return element;
+    },
+    tagName: "div",
+    rules: ["div { text-wrap: balance; display: inline; }"],
+    isActive: true,
+  },
+  {
+    info: "text-wrap: initial; is active",
+    property: "text-wrap",
+    createTestElement: rootNode => {
+      const element = document.createElement("div");
+      element.textContent = `
+        Lorem ipsum dolor sit amet, consectetur adipiscing elit.
+        Donec a diam lectus. Sed sit amet ipsum mauris.
+        Maecenas congue ligula ac quam viverra nec consectetur ante hendrerit.
+      `;
+      rootNode.append(element);
+      return element;
+    },
+    tagName: "div",
+    rules: ["div { text-wrap: initial; width: 100px; }"],
+    isActive: true,
+  },
+];