Support output of heading levels.

chrome/browser/resources/chromeos/chromevox/cvox2/background/output_test.extjs

Index: chrome/browser/resources/chromeos/chromevox/cvox2/background/output_test.extjs
diff --git a/chrome/browser/resources/chromeos/chromevox/cvox2/background/output_test.extjs b/chrome/browser/resources/chromeos/chromevox/cvox2/background/output_test.extjs
index 89eecd812ea08a97def1afae7b16eef5579f9b02..be99afdb455273be0b6bb8fe08cb1654f129b70c 100644
--- a/chrome/browser/resources/chromeos/chromevox/cvox2/background/output_test.extjs
+++ b/chrome/browser/resources/chromeos/chromevox/cvox2/background/output_test.extjs
@@ -83,3 +83,57 @@ TEST_F('OutputE2ETest', 'InLineTextBoxValueGetsIgnored', function() {
       ]}, o.toSpannable());
   });
 });
+
+TEST_F('OutputE2ETest', 'Headings', function() {
+  this.runWithLoadedTree(
+      '<h1>a</h1><h2>b</h2><h3>c</h3><h4>d</h4><h5>e</h5><h6>f</h6>',
+    function(root) {
+      var el = root.firstChild;
+      var range = cursors.Range.fromNode(el);
+      var o = new Output().withSpeechAndBraille(range, null, 'navigate');
+      assertEqualsJSON({string_: 'Heading 1a', 'spans_': [
+        // Attributes.
+        {value: 'name', start: 9, end: 10}
+      ]}, o.toSpannable());
+
+      el = el.nextSibling;
+      range = cursors.Range.fromNode(el);
+      o = new Output().withSpeechAndBraille(range, null, 'navigate');
+      assertEqualsJSON({string_: 'Heading 2b', 'spans_': [
+        // Attributes.
+        {value: 'name', start: 9, end: 10}
+      ]}, o.toSpannable());
+
+      el = el.nextSibling;
+      range = cursors.Range.fromNode(el);
+      o = new Output().withSpeechAndBraille(range, null, 'navigate');
+      assertEqualsJSON({string_: 'Heading 3c', 'spans_': [
+        // Attributes.
+        {value: 'name', start: 9, end: 10}
+      ]}, o.toSpannable());
+
+      el = el.nextSibling;
+      range = cursors.Range.fromNode(el);
+      o = new Output().withSpeechAndBraille(range, null, 'navigate');
+      assertEqualsJSON({string_: 'Heading 4d', 'spans_': [
+        // Attributes.
+        {value: 'name', start: 9, end: 10}
+      ]}, o.toSpannable());
+
+      el = el.nextSibling;
+      range = cursors.Range.fromNode(el);
+      o = new Output().withSpeechAndBraille(range, null, 'navigate');
+      assertEqualsJSON({string_: 'Heading 5e', 'spans_': [
+        // Attributes.
+        {value: 'name', start: 9, end: 10}
+      ]}, o.toSpannable());
+
+      el = el.nextSibling;
+      range = cursors.Range.fromNode(el);
+      o = new Output().withSpeechAndBraille(range, null, 'navigate');
+      assertEqualsJSON({string_: 'Heading 6f', 'spans_': [
+        // Attributes.
+        {value: 'name', start: 9, end: 10}
+      ]}, o.toSpannable());
+  });
+});