Import web-platform-tests@41d6911b288a9624c249a406b9bf51607a2dd04d

third_party/WebKit/LayoutTests/imported/web-platform-tests/html/dom/documents/dom-tree-accessors/Document.body.html

Index: third_party/WebKit/LayoutTests/imported/web-platform-tests/html/dom/documents/dom-tree-accessors/Document.body.html
diff --git a/third_party/WebKit/LayoutTests/imported/web-platform-tests/html/dom/documents/dom-tree-accessors/document.body-getter.html b/third_party/WebKit/LayoutTests/imported/web-platform-tests/html/dom/documents/dom-tree-accessors/Document.body.html
similarity index 73%
rename from third_party/WebKit/LayoutTests/imported/web-platform-tests/html/dom/documents/dom-tree-accessors/document.body-getter.html
rename to third_party/WebKit/LayoutTests/imported/web-platform-tests/html/dom/documents/dom-tree-accessors/Document.body.html
index a37ec94e798caf2f5bd52fbca443c0d113932ca5..f06a762069b917473a6a7e0d94458fb7d4f18c12 100644
--- a/third_party/WebKit/LayoutTests/imported/web-platform-tests/html/dom/documents/dom-tree-accessors/document.body-getter.html
+++ b/third_party/WebKit/LayoutTests/imported/web-platform-tests/html/dom/documents/dom-tree-accessors/Document.body.html
@@ -118,4 +118,52 @@ test(function() {
   doc.appendChild(doc.createElementNS("http://example.org/test", "frameset"));
   assert_equals(doc.body, null);
 }, "Non-HTML frameset as the root node");
+
+test(function() {
+  assert_not_equals(document.body, null);
+  assert_true(document.body instanceof HTMLBodyElement, "should be HTMLBodyElement");
+  assert_equals(document.body.tagName, "BODY");
+}, "existing document's body");
+
+
+var originalBody = document.body;
+test(function() {
+  assert_throws(new TypeError(), function() {
+    document.body = "text"
+  })
+  assert_equals(document.body, originalBody);
+}, "Setting document.body to a string.")
+test(function() {
+  assert_throws("HierarchyRequestError", function() {
+    document.body = document.createElement("div")
+  })
+  assert_equals(document.body, originalBody);
+}, "Setting document.body to a div element.")
+test(function() {
+  var doc = createDocument();
+  assert_throws("HierarchyRequestError", function() {
+    doc.body = doc.createElement("body")
+  })
+  assert_equals(doc.body, null);
+}, "Setting document.body when there's no root element.")
+test(function() {
+  var doc = document.implementation.createHTMLDocument();
+
+  var new_body = doc.createElement("body");
+  assert_true(new_body instanceof HTMLBodyElement, "should be HTMLBodyElement");
+  assert_equals(new_body.tagName, "BODY");
+
+  doc.body = new_body;
+  assert_equals(doc.body, new_body);
+}, "Setting document.body to a new body element.");
+test(function() {
+  var doc = document.implementation.createHTMLDocument();
+
+  var new_frameset = doc.createElement("frameset");
+  assert_true(new_frameset instanceof HTMLFrameSetElement, "should be HTMLFrameSetElement");
+  assert_equals(new_frameset.tagName, "FRAMESET");
+
+  doc.body = new_frameset;
+  assert_equals(doc.body, new_frameset, "test6-3, append frameset to a new document");
+}, "Setting document.body to a new frameset element.");
 </script>