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cef/tests/ceftests/dom_unittest.cc

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// Copyright (c) 2012 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.
#include "include/cef_dom.h"
#include "tests/ceftests/test_handler.h"
#include "tests/gtest/include/gtest/gtest.h"
#include "tests/shared/renderer/client_app_renderer.h"
using client::ClientAppRenderer;
namespace {
const char* kTestUrl = "https://tests/DOMTest.Test";
const char* kTestMessage = "DOMTest.Message";
enum DOMTestType {
DOM_TEST_STRUCTURE,
DOM_TEST_MODIFY,
};
class TestDOMVisitor : public CefDOMVisitor {
public:
explicit TestDOMVisitor(CefRefPtr<CefBrowser> browser, DOMTestType test_type)
: browser_(browser), test_type_(test_type) {}
void TestHeadNodeStructure(CefRefPtr<CefDOMNode> headNode) {
EXPECT_TRUE(headNode.get());
EXPECT_TRUE(headNode->IsElement());
EXPECT_FALSE(headNode->IsText());
EXPECT_EQ(headNode->GetName(), "HEAD");
EXPECT_EQ(headNode->GetElementTagName(), "HEAD");
EXPECT_TRUE(headNode->HasChildren());
EXPECT_FALSE(headNode->HasElementAttributes());
CefRefPtr<CefDOMNode> titleNode = headNode->GetFirstChild();
EXPECT_TRUE(titleNode.get());
EXPECT_TRUE(titleNode->IsElement());
EXPECT_FALSE(titleNode->IsText());
EXPECT_EQ(titleNode->GetName(), "TITLE");
EXPECT_EQ(titleNode->GetElementTagName(), "TITLE");
EXPECT_TRUE(titleNode->GetParent()->IsSame(headNode));
EXPECT_FALSE(titleNode->GetNextSibling().get());
EXPECT_FALSE(titleNode->GetPreviousSibling().get());
EXPECT_TRUE(titleNode->HasChildren());
EXPECT_FALSE(titleNode->HasElementAttributes());
CefRefPtr<CefDOMNode> textNode = titleNode->GetFirstChild();
EXPECT_TRUE(textNode.get());
EXPECT_FALSE(textNode->IsElement());
EXPECT_TRUE(textNode->IsText());
EXPECT_EQ(textNode->GetValue(), "The Title");
EXPECT_TRUE(textNode->GetParent()->IsSame(titleNode));
EXPECT_FALSE(textNode->GetNextSibling().get());
EXPECT_FALSE(textNode->GetPreviousSibling().get());
EXPECT_FALSE(textNode->HasChildren());
}
void TestBodyNodeStructure(CefRefPtr<CefDOMNode> bodyNode,
float devicePixelRatio) {
EXPECT_TRUE(bodyNode.get());
EXPECT_TRUE(bodyNode->IsElement());
EXPECT_FALSE(bodyNode->IsText());
EXPECT_EQ(bodyNode->GetName(), "BODY");
EXPECT_EQ(bodyNode->GetElementTagName(), "BODY");
EXPECT_TRUE(bodyNode->HasChildren());
EXPECT_FALSE(bodyNode->HasElementAttributes());
CefRefPtr<CefDOMNode> h1Node = bodyNode->GetFirstChild();
EXPECT_TRUE(h1Node.get());
EXPECT_TRUE(h1Node->IsElement());
EXPECT_FALSE(h1Node->IsText());
EXPECT_EQ(h1Node->GetName(), "H1");
EXPECT_EQ(h1Node->GetElementTagName(), "H1");
EXPECT_TRUE(h1Node->GetNextSibling().get());
EXPECT_FALSE(h1Node->GetPreviousSibling().get());
EXPECT_TRUE(h1Node->HasChildren());
EXPECT_FALSE(h1Node->HasElementAttributes());
CefRefPtr<CefDOMNode> textNode = h1Node->GetFirstChild();
EXPECT_TRUE(textNode.get());
EXPECT_FALSE(textNode->IsElement());
EXPECT_TRUE(textNode->IsText());
EXPECT_EQ(textNode->GetValue(), "Hello From");
EXPECT_FALSE(textNode->GetPreviousSibling().get());
EXPECT_FALSE(textNode->HasChildren());
CefRefPtr<CefDOMNode> brNode = textNode->GetNextSibling();
EXPECT_TRUE(brNode.get());
EXPECT_TRUE(brNode->IsElement());
EXPECT_FALSE(brNode->IsText());
EXPECT_EQ(brNode->GetName(), "BR");
EXPECT_EQ(brNode->GetElementTagName(), "BR");
EXPECT_FALSE(brNode->HasChildren());
EXPECT_TRUE(brNode->HasElementAttributes());
EXPECT_TRUE(brNode->HasElementAttribute("class"));
EXPECT_EQ(brNode->GetElementAttribute("class"), "some_class");
EXPECT_TRUE(brNode->HasElementAttribute("id"));
EXPECT_EQ(brNode->GetElementAttribute("id"), "some_id");
EXPECT_FALSE(brNode->HasElementAttribute("no_existing"));
CefDOMNode::AttributeMap map;
brNode->GetElementAttributes(map);
ASSERT_EQ(map.size(), (size_t)2);
EXPECT_EQ(map["class"], "some_class");
EXPECT_EQ(map["id"], "some_id");
// Can also retrieve by ID.
brNode = bodyNode->GetDocument()->GetElementById("some_id");
EXPECT_TRUE(brNode.get());
EXPECT_TRUE(brNode->IsElement());
EXPECT_FALSE(brNode->IsText());
EXPECT_EQ(brNode->GetName(), "BR");
EXPECT_EQ(brNode->GetElementTagName(), "BR");
textNode = brNode->GetNextSibling();
EXPECT_TRUE(textNode.get());
EXPECT_FALSE(textNode->IsElement());
EXPECT_TRUE(textNode->IsText());
EXPECT_EQ(textNode->GetValue(), "Main Frame");
EXPECT_FALSE(textNode->GetNextSibling().get());
EXPECT_FALSE(textNode->HasChildren());
CefRefPtr<CefDOMNode> divNode = h1Node->GetNextSibling();
EXPECT_TRUE(divNode.get());
EXPECT_TRUE(divNode->IsElement());
EXPECT_FALSE(divNode->IsText());
// Returned bounds are in device pixels.
CefRect divRect = divNode->GetElementBounds();
EXPECT_NEAR(divRect.width, 50.0 * devicePixelRatio, 1);
EXPECT_NEAR(divRect.height, 25.0 * devicePixelRatio, 1);
EXPECT_NEAR(divRect.x, 150.0 * devicePixelRatio, 1);
EXPECT_NEAR(divRect.y, 100.0 * devicePixelRatio, 1);
EXPECT_FALSE(divNode->GetNextSibling().get());
}
// Test document structure by iterating through the DOM tree.
void TestStructure(CefRefPtr<CefDOMDocument> document) {
EXPECT_EQ(document->GetTitle(), "The Title");
EXPECT_EQ(document->GetBaseURL(), kTestUrl);
EXPECT_EQ(document->GetCompleteURL("foo.html"), "https://tests/foo.html");
// Navigate the complete document structure.
CefRefPtr<CefDOMNode> docNode = document->GetDocument();
EXPECT_TRUE(docNode.get());
EXPECT_FALSE(docNode->IsElement());
EXPECT_FALSE(docNode->IsText());
CefRefPtr<CefDOMNode> htmlNode = docNode->GetFirstChild();
EXPECT_TRUE(htmlNode.get());
EXPECT_TRUE(htmlNode->IsElement());
EXPECT_FALSE(htmlNode->IsText());
EXPECT_EQ(htmlNode->GetName(), "HTML");
EXPECT_EQ(htmlNode->GetElementTagName(), "HTML");
EXPECT_TRUE(htmlNode->HasChildren());
EXPECT_FALSE(htmlNode->HasElementAttributes());
CefRefPtr<CefDOMNode> headNode = htmlNode->GetFirstChild();
TestHeadNodeStructure(headNode);
const float devicePixelRatio = GetDevicePixelRatio();
CefRefPtr<CefDOMNode> bodyNode = headNode->GetNextSibling();
TestBodyNodeStructure(bodyNode, devicePixelRatio);
// Retrieve the head node directly.
headNode = document->GetHead();
TestHeadNodeStructure(headNode);
// Retrieve the body node directly.
bodyNode = document->GetBody();
TestBodyNodeStructure(bodyNode, devicePixelRatio);
}
// Test document modification by changing the H1 tag.
void TestModify(CefRefPtr<CefDOMDocument> document) {
CefRefPtr<CefDOMNode> bodyNode = document->GetBody();
CefRefPtr<CefDOMNode> h1Node = bodyNode->GetFirstChild();
ASSERT_EQ(h1Node->GetAsMarkup(),
"<h1>Hello From<br class=\"some_class\" id=\"some_id\">"
"Main Frame</h1>");
CefRefPtr<CefDOMNode> textNode = h1Node->GetFirstChild();
ASSERT_EQ(textNode->GetValue(), "Hello From");
ASSERT_TRUE(textNode->SetValue("A Different Message From"));
ASSERT_EQ(textNode->GetValue(), "A Different Message From");
CefRefPtr<CefDOMNode> brNode = textNode->GetNextSibling();
EXPECT_EQ(brNode->GetElementAttribute("class"), "some_class");
EXPECT_TRUE(brNode->SetElementAttribute("class", "a_different_class"));
EXPECT_EQ(brNode->GetElementAttribute("class"), "a_different_class");
ASSERT_EQ(h1Node->GetAsMarkup(),
"<h1>A Different Message From<br class=\"a_different_class\" "
"id=\"some_id\">Main Frame</h1>");
ASSERT_FALSE(h1Node->SetValue("Something Different"));
}
void Visit(CefRefPtr<CefDOMDocument> document) override {
if (test_type_ == DOM_TEST_STRUCTURE) {
TestStructure(document);
} else if (test_type_ == DOM_TEST_MODIFY) {
TestModify(document);
}
DestroyTest();
}
protected:
// Return from the test.
void DestroyTest() {
// Check if the test has failed.
bool result = !TestFailed();
// Return the result to the browser process.
CefRefPtr<CefProcessMessage> return_msg =
CefProcessMessage::Create(kTestMessage);
EXPECT_TRUE(return_msg->GetArgumentList()->SetBool(0, result));
browser_->GetMainFrame()->SendProcessMessage(PID_BROWSER, return_msg);
}
// Used to convert between device pixels and CSS pixels.
float GetDevicePixelRatio() {
auto context = browser_->GetMainFrame()->GetV8Context();
EXPECT_TRUE(context);
CefRefPtr<CefV8Value> retval;
CefRefPtr<CefV8Exception> exception;
EXPECT_TRUE(context->Eval("window.devicePixelRatio", CefString(), 0, retval,
exception));
if (exception) {
ADD_FAILURE() << exception->GetMessage().c_str();
return 1.0;
}
if (retval->IsValid() && retval->IsDouble()) {
return static_cast<float>(retval->GetDoubleValue());
}
ADD_FAILURE() << "Failed to retrieve devicePixelRatio";
return 1.0;
}
CefRefPtr<CefBrowser> browser_;
DOMTestType test_type_;
IMPLEMENT_REFCOUNTING(TestDOMVisitor);
};
// Used in the render process.
class DOMRendererTest : public ClientAppRenderer::Delegate {
public:
DOMRendererTest() = default;
bool OnProcessMessageReceived(CefRefPtr<ClientAppRenderer> app,
CefRefPtr<CefBrowser> browser,
CefRefPtr<CefFrame> frame,
CefProcessId source_process,
CefRefPtr<CefProcessMessage> message) override {
if (message->GetName() == kTestMessage) {
EXPECT_EQ(message->GetArgumentList()->GetSize(), (size_t)1);
int test_type = message->GetArgumentList()->GetInt(0);
browser->GetMainFrame()->VisitDOM(
new TestDOMVisitor(browser, static_cast<DOMTestType>(test_type)));
return true;
}
return false;
}
private:
IMPLEMENT_REFCOUNTING(DOMRendererTest);
};
// Used in the browser process.
class TestDOMHandler : public TestHandler {
public:
explicit TestDOMHandler(DOMTestType test) : test_type_(test) {}
void RunTest() override {
// Specified values are in CSS pixels.
std::stringstream mainHtml;
mainHtml << "<html>"
"<head><title>The Title</title></head>"
"<body>"
"<h1>Hello From<br class=\"some_class\"/ id=\"some_id\"/>"
"Main Frame</h1>"
"<div id=\"sized_element\" style=\"width: 50px; height: 25px; "
"position: fixed; top: 100px; left: 150px;\"/>"
"</body>"
"</html>";
AddResource(kTestUrl, mainHtml.str(), "text/html");
CreateBrowser(kTestUrl);
// Time out the test after a reasonable period of time.
SetTestTimeout();
}
void OnLoadEnd(CefRefPtr<CefBrowser> browser,
CefRefPtr<CefFrame> frame,
int httpStatusCode) override {
if (frame->IsMain()) {
// Start the test in the render process.
CefRefPtr<CefProcessMessage> message(
CefProcessMessage::Create(kTestMessage));
message->GetArgumentList()->SetInt(0, test_type_);
frame->SendProcessMessage(PID_RENDERER, message);
}
}
bool OnProcessMessageReceived(CefRefPtr<CefBrowser> browser,
CefRefPtr<CefFrame> frame,
CefProcessId source_process,
CefRefPtr<CefProcessMessage> message) override {
EXPECT_STREQ(message->GetName().ToString().c_str(), kTestMessage);
got_message_.yes();
if (message->GetArgumentList()->GetBool(0)) {
got_success_.yes();
}
// Test is complete.
DestroyTest();
return true;
}
DOMTestType test_type_;
TrackCallback got_message_;
TrackCallback got_success_;
IMPLEMENT_REFCOUNTING(TestDOMHandler);
};
} // namespace
// Test DOM structure reading.
TEST(DOMTest, Read) {
CefRefPtr<TestDOMHandler> handler = new TestDOMHandler(DOM_TEST_STRUCTURE);
handler->ExecuteTest();
EXPECT_TRUE(handler->got_message_);
EXPECT_TRUE(handler->got_success_);
ReleaseAndWaitForDestructor(handler);
}
// Test DOM modifications.
TEST(DOMTest, Modify) {
CefRefPtr<TestDOMHandler> handler = new TestDOMHandler(DOM_TEST_MODIFY);
handler->ExecuteTest();
EXPECT_TRUE(handler->got_message_);
EXPECT_TRUE(handler->got_success_);
ReleaseAndWaitForDestructor(handler);
}
// Entry point for creating DOM renderer test objects.
// Called from client_app_delegates.cc.
void CreateDOMRendererTests(ClientAppRenderer::DelegateSet& delegates) {
delegates.insert(new DOMRendererTest);
}
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