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diff --git a/devtools/server/tests/chrome/inactive-property-helper/max-min-width-height.js b/devtools/server/tests/chrome/inactive-property-helper/max-min-width-height.js
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+/* 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 `width`, `min-width`, `max-width`, `height`, `min-height`,
+// `max-height` test cases.
+export default [
+  {
+    info: "width is inactive on a non-replaced inline element",
+    property: "width",
+    tagName: "span",
+    rules: ["span { width: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "min-width is inactive on a non-replaced inline element",
+    property: "min-width",
+    tagName: "span",
+    rules: ["span { min-width: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "max-width is inactive on a non-replaced inline element",
+    property: "max-width",
+    tagName: "span",
+    rules: ["span { max-width: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "width is inactive on an tr element",
+    property: "width",
+    tagName: "tr",
+    rules: ["tr { width: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "min-width is inactive on an tr element",
+    property: "min-width",
+    tagName: "tr",
+    rules: ["tr { min-width: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "max-width is inactive on an tr element",
+    property: "max-width",
+    tagName: "tr",
+    rules: ["tr { max-width: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "width is inactive on an thead element",
+    property: "width",
+    tagName: "thead",
+    rules: ["thead { width: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "min-width is inactive on an thead element",
+    property: "min-width",
+    tagName: "thead",
+    rules: ["thead { min-width: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "max-width is inactive on an thead element",
+    property: "max-width",
+    tagName: "thead",
+    rules: ["thead { max-width: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "width is inactive on an tfoot element",
+    property: "width",
+    tagName: "tfoot",
+    rules: ["tfoot { width: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "min-width is inactive on an tfoot element",
+    property: "min-width",
+    tagName: "tfoot",
+    rules: ["tfoot { min-width: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "max-width is inactive on an tfoot element",
+    property: "max-width",
+    tagName: "tfoot",
+    rules: ["tfoot { max-width: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "width is active on a replaced inline element",
+    property: "width",
+    tagName: "img",
+    rules: ["img { width: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "width is active on an inline input element",
+    property: "width",
+    tagName: "input",
+    rules: ["input { display: inline; width: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "width is active on an inline select element",
+    property: "width",
+    tagName: "select",
+    rules: ["select { display: inline; width: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "width is active on a textarea element",
+    property: "width",
+    tagName: "textarea",
+    rules: ["textarea { width: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "min-width is active on a replaced inline element",
+    property: "min-width",
+    tagName: "img",
+    rules: ["img { min-width: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "max-width is active on a replaced inline element",
+    property: "max-width",
+    tagName: "img",
+    rules: ["img { max-width: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "width is active on a block element",
+    property: "width",
+    tagName: "div",
+    rules: ["div { width: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "min-width is active on a block element",
+    property: "min-width",
+    tagName: "div",
+    rules: ["div { min-width: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "max-width is active on a block element",
+    property: "max-width",
+    tagName: "div",
+    rules: ["div { max-width: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "height is inactive on a non-replaced inline element",
+    property: "height",
+    tagName: "span",
+    rules: ["span { height: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "min-height is inactive on a non-replaced inline element",
+    property: "min-height",
+    tagName: "span",
+    rules: ["span { min-height: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "max-height is inactive on a non-replaced inline element",
+    property: "max-height",
+    tagName: "span",
+    rules: ["span { max-height: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "height is inactive on colgroup element",
+    property: "height",
+    tagName: "colgroup",
+    rules: ["colgroup { height: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "min-height is inactive on colgroup element",
+    property: "min-height",
+    tagName: "colgroup",
+    rules: ["colgroup { min-height: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "max-height is inactive on colgroup element",
+    property: "max-height",
+    tagName: "colgroup",
+    rules: ["colgroup { max-height: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "height is inactive on col element",
+    property: "height",
+    tagName: "col",
+    rules: ["col { height: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "min-height is inactive on col element",
+    property: "min-height",
+    tagName: "col",
+    rules: ["col { min-height: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "max-height is inactive on col element",
+    property: "max-height",
+    tagName: "col",
+    rules: ["col { max-height: 500px; }"],
+    isActive: false,
+  },
+  {
+    info: "height is active on a replaced inline element",
+    property: "height",
+    tagName: "img",
+    rules: ["img { height: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "height is active on an inline input element",
+    property: "height",
+    tagName: "input",
+    rules: ["input { display: inline; height: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "height is active on an inline select element",
+    property: "height",
+    tagName: "select",
+    rules: ["select { display: inline; height: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "height is active on a textarea element",
+    property: "height",
+    tagName: "textarea",
+    rules: ["textarea { height: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "min-height is active on a replaced inline element",
+    property: "min-height",
+    tagName: "img",
+    rules: ["img { min-height: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "max-height is active on a replaced inline element",
+    property: "max-height",
+    tagName: "img",
+    rules: ["img { max-height: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "height is active on a block element",
+    property: "height",
+    tagName: "div",
+    rules: ["div { height: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "min-height is active on a block element",
+    property: "min-height",
+    tagName: "div",
+    rules: ["div { min-height: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "max-height is active on a block element",
+    property: "max-height",
+    tagName: "div",
+    rules: ["div { max-height: 500px; }"],
+    isActive: true,
+  },
+  {
+    info: "height is active on an svg <rect> element.",
+    property: "height",
+    createTestElement: main => {
+      main.innerHTML = `
+        <svg width=100 height=100>
+          <rect width=100 fill=green></rect>
+        </svg>
+      `;
+      return main.querySelector("rect");
+    },
+    rules: ["rect { height: 100px; }"],
+    isActive: true,
+  },
+  createTableElementTestCase("width", false, "table-row"),
+  createTableElementTestCase("width", false, "table-row-group"),
+  createTableElementTestCase("width", true, "table-column"),
+  createTableElementTestCase("width", true, "table-column-group"),
+  createTableElementTestCase("height", false, "table-column"),
+  createTableElementTestCase("height", false, "table-column-group"),
+  createTableElementTestCase("height", true, "table-row"),
+  createTableElementTestCase("height", true, "table-row-group"),
+  createVerticalTableElementTestCase("width", true, "table-row"),
+  createVerticalTableElementTestCase("width", true, "table-row-group"),
+  createVerticalTableElementTestCase("width", false, "table-column"),
+  createVerticalTableElementTestCase("width", false, "table-column-group"),
+  createVerticalTableElementTestCase("height", true, "table-column"),
+  createVerticalTableElementTestCase("height", true, "table-column-group"),
+  createVerticalTableElementTestCase("height", false, "table-row"),
+  createVerticalTableElementTestCase("height", false, "table-row-group"),
+  {
+    info:
+      "width's inactivity status for a row takes the table's writing mode into account",
+    property: "width",
+    createTestElement: rootNode => {
+      const table = document.createElement("table");
+      table.style.writingMode = "vertical-lr";
+      rootNode.appendChild(table);
+
+      const tbody = document.createElement("tbody");
+      table.appendChild(tbody);
+
+      const tr = document.createElement("tr");
+      tbody.appendChild(tr);
+
+      const td = document.createElement("td");
+      tr.appendChild(td);
+
+      return tr;
+    },
+    rules: ["tr { writing-mode: horizontal-tb; width: 360px; }"],
+    isActive: true,
+  },
+];
+
+function createTableElementTestCase(property, isActive, displayType) {
+  return {
+    info: `${property} is ${
+      isActive ? "active" : "inactive"
+    } on a ${displayType}`,
+    property,
+    tagName: "div",
+    rules: [`div { display: ${displayType}; ${property}: 100px; }`],
+    isActive,
+  };
+}
+
+function createVerticalTableElementTestCase(property, isActive, displayType) {
+  return {
+    info: `${property} is ${
+      isActive ? "active" : "inactive"
+    } on a vertical ${displayType}`,
+    property,
+    createTestElement: rootNode => {
+      const container = document.createElement("div");
+      container.style.writingMode = "vertical-lr";
+      rootNode.append(container);
+
+      const element = document.createElement("span");
+      container.append(element);
+
+      return element;
+    },
+    rules: [`span { display: ${displayType}; ${property}: 100px; }`],
+    isActive,
+  };
+}