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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/renderer/actor/tool_utils.h"
#include <memory>
#include "chrome/renderer/actor/click_tool.h"
#include "chrome/test/base/chrome_render_view_test.h"
#include "content/public/renderer/render_frame.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/web/web_document.h"
#include "third_party/blink/public/web/web_element.h"
#include "third_party/blink/public/web/web_local_frame.h"
#include "third_party/blink/public/web/web_node.h"
#include "third_party/blink/public/web/web_view.h"
#include "url/gurl.h"
namespace actor {
class ToolUtilsTest : public ChromeRenderViewTest {
public:
ToolUtilsTest() = default;
protected:
void SetUp() override {
ChromeRenderViewTest::SetUp();
// Create a basic HTML structure.
LoadHTML(
"<div id='div1'>42</div>"
"<div id='div2'>Goodbye</div>"
"<iframe id='iframe1' srcdoc='<div id=div3>Nested</div>'></iframe>");
}
blink::WebNode GetNodeByHtmlId(const std::string& html_id) {
blink::WebElement element =
GetMainRenderFrame()->GetWebFrame()->GetDocument().GetElementById(
blink::WebString::FromUTF8(html_id));
if (element.IsNull()) {
return blink::WebNode();
}
return blink::WebNode(element);
}
blink::WebNode GetIframeNodeByHtmlId(const std::string& iframe_id_str,
const std::string& html_id_str) {
const blink::WebElement iframe_element =
GetMainRenderFrame()->GetWebFrame()->GetDocument().GetElementById(
blink::WebString::FromUTF8(iframe_id_str));
const blink::WebElement child_element =
blink::WebFrame::FromFrameOwnerElement(iframe_element)
->ToWebLocalFrame()
->GetDocument()
.GetElementById(blink::WebString::FromUTF8(html_id_str));
if (child_element.IsNull()) {
return blink::WebNode();
}
return blink::WebNode(child_element);
}
};
// Tests with valid frame and node ID.
TEST_F(ToolUtilsTest, GetNodeFromId_Valid) {
blink::WebNode div1 = GetNodeByHtmlId("div1");
ASSERT_FALSE(div1.IsNull());
int32_t div1_node_id = div1.GetDomNodeId();
blink::WebNode node = GetNodeFromId(*GetMainRenderFrame(), div1_node_id);
ASSERT_FALSE(node.IsNull());
EXPECT_EQ(div1_node_id, node.GetDomNodeId());
EXPECT_EQ(div1, node);
blink::WebNode div2 = GetNodeByHtmlId("div2");
ASSERT_FALSE(div2.IsNull());
int32_t div2_node_id = div2.GetDomNodeId();
blink::WebNode node2 = GetNodeFromId(*GetMainRenderFrame(), div2_node_id);
ASSERT_FALSE(node2.IsNull());
EXPECT_EQ(div2_node_id, node2.GetDomNodeId());
EXPECT_EQ(div2, node2);
}
// Tests with invalid node ID (node does not exist).
TEST_F(ToolUtilsTest, GetNodeFromId_InvalidNodeId) {
blink::WebNode node = GetNodeFromId(*GetMainRenderFrame(), 123456);
EXPECT_TRUE(node.IsNull());
}
// Tests a node in a nested frame (iframe).
TEST_F(ToolUtilsTest, GetNodeFromId_NestedFrame) {
// Verify that dom node inside iframe is not available in the frame.
blink::WebNode div3_in_main = GetNodeByHtmlId("div3");
ASSERT_TRUE(div3_in_main.IsNull());
// Get node within the iframe
blink::WebNode div3_node = GetIframeNodeByHtmlId("iframe1", "div3");
ASSERT_FALSE(div3_node.IsNull());
ASSERT_TRUE(div3_node.IsElementNode());
ASSERT_EQ("div3",
div3_node.To<blink::WebElement>().GetAttribute("id").Utf8());
int32_t div3_node_id = div3_node.GetDomNodeId();
ASSERT_NE(0, div3_node_id);
// Get the child RenderFrame* context
blink::WebNode iframe_node = GetNodeByHtmlId("iframe1");
ASSERT_FALSE(iframe_node.IsNull());
blink::WebFrame* child_web_frame = blink::WebFrame::FromFrameOwnerElement(
iframe_node.To<blink::WebElement>());
ASSERT_NE(nullptr, child_web_frame);
content::RenderFrame* child_frame =
content::RenderFrame::FromWebFrame(child_web_frame->ToWebLocalFrame());
ASSERT_NE(nullptr, child_frame);
// Find node div3 within the iframe.
blink::WebNode node_found_in_child =
GetNodeFromId(*child_frame, div3_node_id);
ASSERT_FALSE(node_found_in_child.IsNull());
EXPECT_EQ(div3_node_id, node_found_in_child.GetDomNodeId());
EXPECT_EQ(div3_node, node_found_in_child); // Verify it's the exact same node
// Try to find iframe node (div3) using the main frame context -> fails
blink::WebNode node_not_found_in_main =
GetNodeFromId(*GetMainRenderFrame(), div3_node_id);
EXPECT_TRUE(node_not_found_in_main.IsNull());
// Try to find main frame node (div1) using the child frame context -> fails
blink::WebNode div1 = GetNodeByHtmlId("div1"); // Searches main frame only
ASSERT_FALSE(div1.IsNull());
int32_t div1_node_id = div1.GetDomNodeId();
ASSERT_NE(0, div1_node_id);
blink::WebNode node_not_found_in_child =
GetNodeFromId(*child_frame, div1_node_id);
EXPECT_TRUE(node_not_found_in_child.IsNull());
}
} // namespace actor
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