chromium/src/third_party/blink/renderer/modules/document_metadata/document_metadata_extractor_test.cc - manifest_repos/chromium_src - Git at Google

 // Copyright 2017 The Chromium 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 "third_party/blink/renderer/modules/document_metadata/document_metadata_extractor.h"

 #include <memory>
 #include <utility>

 #include "components/schema_org/common/metadata.mojom-blink.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/blink/public/mojom/document_metadata/document_metadata.mojom-blink.h"
 #include "third_party/blink/renderer/core/dom/document.h"
 #include "third_party/blink/renderer/core/dom/element.h"
 #include "third_party/blink/renderer/core/testing/page_test_base.h"
 #include "third_party/blink/renderer/platform/json/json_values.h"
 #include "third_party/blink/renderer/platform/wtf/text/string_builder.h"

 namespace blink {

 namespace {

 using mojom::blink::WebPage;
 using mojom::blink::WebPagePtr;
 using schema_org::mojom::blink::Entity;
 using schema_org::mojom::blink::EntityPtr;
 using schema_org::mojom::blink::Property;
 using schema_org::mojom::blink::PropertyPtr;
 using schema_org::mojom::blink::Values;
 using schema_org::mojom::blink::ValuesPtr;

 class DocumentMetadataExtractorTest : public PageTestBase {
  public:
   DocumentMetadataExtractorTest() = default;

  protected:
   void TearDown() override {
     ThreadState::Current()->CollectAllGarbageForTesting();
   }

   WebPagePtr Extract() {
     return DocumentMetadataExtractor::Extract(GetDocument());
   }

   void SetHTMLInnerHTML(const String&);

   void SetURL(const String&);

   void SetTitle(const String&);

   PropertyPtr CreateStringProperty(const String& name, const String& value);

   PropertyPtr CreateBooleanProperty(const String& name, const bool& value);

   PropertyPtr CreateLongProperty(const String& name, const int64_t& value);

   PropertyPtr CreateEntityProperty(const String& name, EntityPtr value);

   WebPagePtr CreateWebPage(const String& url, const String& title);
 };

 void DocumentMetadataExtractorTest::SetHTMLInnerHTML(
     const String& html_content) {
   GetDocument().documentElement()->setInnerHTML((html_content));
 }

 void DocumentMetadataExtractorTest::SetURL(const String& url) {
   GetDocument().SetURL(blink::KURL(url));
 }

 void DocumentMetadataExtractorTest::SetTitle(const String& title) {
   GetDocument().setTitle(title);
 }

 PropertyPtr DocumentMetadataExtractorTest::CreateStringProperty(
     const String& name,
     const String& value) {
   PropertyPtr property = Property::New();
   property->name = name;
   property->values = Values::New();
   property->values->set_string_values({value});
   return property;
 }

 PropertyPtr DocumentMetadataExtractorTest::CreateBooleanProperty(
     const String& name,
     const bool& value) {
   PropertyPtr property = Property::New();
   property->name = name;
   property->values = Values::New();
   property->values->set_bool_values({value});
   return property;
 }

 PropertyPtr DocumentMetadataExtractorTest::CreateLongProperty(
     const String& name,
     const int64_t& value) {
   PropertyPtr property = Property::New();
   property->name = name;
   property->values = Values::New();
   property->values->set_long_values({value});
   return property;
 }

 PropertyPtr DocumentMetadataExtractorTest::CreateEntityProperty(
     const String& name,
     EntityPtr value) {
   PropertyPtr property = Property::New();
   property->name = name;
   property->values = Values::New();
   property->values->set_entity_values(Vector<EntityPtr>());
   property->values->get_entity_values().push_back(std::move(value));
   return property;
 }

 WebPagePtr DocumentMetadataExtractorTest::CreateWebPage(const String& url,
                                                         const String& title) {
   WebPagePtr page = WebPage::New();
   page->url = blink::KURL(url);
   page->title = title;
   return page;
 }

 TEST_F(DocumentMetadataExtractorTest, empty) {
   ASSERT_TRUE(Extract().is_null());
 }

 TEST_F(DocumentMetadataExtractorTest, basic) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": \"Special characters for ya >_<;\""
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";
   restaurant->properties.push_back(
       CreateStringProperty("name", "Special characters for ya >_<;"));

   expected->entities.push_back(std::move(restaurant));
   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, header) {
   SetHTMLInnerHTML(
       "<head>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": \"Special characters for ya >_<;\""
       "}\n"
       "\n"
       "</script>"
       "</head>");

   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";
   restaurant->properties.push_back(
       CreateStringProperty("name", "Special characters for ya >_<;"));

   expected->entities.push_back(std::move(restaurant));
   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, booleanValue) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"open\": true"
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";
   restaurant->properties.push_back(CreateBooleanProperty("open", true));

   expected->entities.push_back(std::move(restaurant));
   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, longValue) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"long\": 1"
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";
   restaurant->properties.push_back(CreateLongProperty("long", 1ll));

   expected->entities.push_back(std::move(restaurant));
   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, doubleValue) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"double\": 1.5"
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";
   restaurant->properties.push_back(CreateStringProperty("double", "1.5"));

   expected->entities.push_back(std::move(restaurant));
   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, multiple) {
   SetHTMLInnerHTML(
       "<head>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": \"Special characters for ya >_<;\""
       "}\n"
       "\n"
       "</script>"
       "</head>"
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": \"Special characters for ya >_<;\""
       "}\n"
       "\n"
       "</script>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": \"Special characters for ya >_<;\""
       "}\n"
       "\n"
       "</script>"
       "</body>");

   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   for (int i = 0; i < 3; ++i) {
     EntityPtr restaurant = Entity::New();
     restaurant->type = "Restaurant";
     restaurant->properties.push_back(
         CreateStringProperty("name", "Special characters for ya >_<;"));

     expected->entities.push_back(std::move(restaurant));
   }
   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, nested) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": \"Ye ol greasy diner\","
       "\"address\": {"
       "\n"
       "  \"streetAddress\": \"123 Big Oak Road\","
       "  \"addressLocality\": \"San Francisco\""
       "  }\n"
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";
   restaurant->properties.push_back(
       CreateStringProperty("name", "Ye ol greasy diner"));

   EntityPtr address = Entity::New();
   address->type = "Thing";
   address->properties.push_back(
       CreateStringProperty("streetAddress", "123 Big Oak Road"));
   address->properties.push_back(
       CreateStringProperty("addressLocality", "San Francisco"));

   restaurant->properties.push_back(
       CreateEntityProperty("address", std::move(address)));

   expected->entities.push_back(std::move(restaurant));
   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, repeated) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": [ \"First name\", \"Second name\" ]"
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";

   PropertyPtr name = Property::New();
   name->name = "name";
   name->values = Values::New();
   Vector<String> nameValues;
   nameValues.push_back("First name");
   nameValues.push_back("Second name");
   name->values->set_string_values(nameValues);

   restaurant->properties.push_back(std::move(name));

   expected->entities.push_back(std::move(restaurant));

   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, repeatedObject) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": \"Ye ol greasy diner\","
       "\"address\": ["
       "\n"
       "  {"
       "  \"streetAddress\": \"123 Big Oak Road\","
       "  \"addressLocality\": \"San Francisco\""
       "  },\n"
       "  {"
       "  \"streetAddress\": \"123 Big Oak Road\","
       "  \"addressLocality\": \"San Francisco\""
       "  }\n"
       "]\n"
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";
   restaurant->properties.push_back(
       CreateStringProperty("name", "Ye ol greasy diner"));

   PropertyPtr addressProperty = Property::New();
   addressProperty->name = "address";
   addressProperty->values = Values::New();
   addressProperty->values->set_entity_values(Vector<EntityPtr>());
   for (int i = 0; i < 2; ++i) {
     EntityPtr address = Entity::New();
     address->type = "Thing";
     address->properties.push_back(
         CreateStringProperty("streetAddress", "123 Big Oak Road"));
     address->properties.push_back(
         CreateStringProperty("addressLocality", "San Francisco"));
     addressProperty->values->get_entity_values().push_back(std::move(address));
   }
   restaurant->properties.push_back(std::move(addressProperty));

   expected->entities.push_back(std::move(restaurant));
   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, truncateLongString) {
   StringBuilder maxLengthString;
   for (int i = 0; i < 200; ++i) {
     maxLengthString.Append("a");
   }
   StringBuilder tooLongString;
   tooLongString.Append(maxLengthString);
   tooLongString.Append("a");
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": \"" +
       tooLongString.ToString() +
       "\""
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";
   restaurant->properties.push_back(
       CreateStringProperty("name", maxLengthString.ToString()));

   expected->entities.push_back(std::move(restaurant));
   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, enforceTypeExists) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"name\": \"Special characters for ya >_<;\""
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_TRUE(extracted.is_null());
 }

 TEST_F(DocumentMetadataExtractorTest, UnhandledTypeIgnored) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"UnsupportedType\","
       "\"name\": \"Special characters for ya >_<;\""
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_TRUE(extracted.is_null());
 }

 TEST_F(DocumentMetadataExtractorTest, truncateTooManyValuesInField) {
   StringBuilder largeRepeatedField;
   largeRepeatedField.Append("[");
   for (int i = 0; i < 101; ++i) {
     largeRepeatedField.Append("\"a\"");
     if (i != 100) {
       largeRepeatedField.Append(", ");
     }
   }
   largeRepeatedField.Append("]");
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": " +
       largeRepeatedField.ToString() +
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";

   PropertyPtr name = Property::New();
   name->name = "name";
   name->values = Values::New();
   Vector<String> nameValues;
   for (int i = 0; i < 100; ++i) {
     nameValues.push_back("a");
   }
   name->values->set_string_values(nameValues);

   restaurant->properties.push_back(std::move(name));

   expected->entities.push_back(std::move(restaurant));

   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, truncateTooManyFields) {
   StringBuilder tooManyFields;
   for (int i = 0; i < 20; ++i) {
     tooManyFields.AppendFormat("\"%d\": \"a\"", i);
     if (i != 19) {
       tooManyFields.Append(",\n");
     }
   }
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\"," +
       tooManyFields.ToString() +
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";

   for (int i = 0; i < 19; ++i) {
     restaurant->properties.push_back(
         CreateStringProperty(String::Number(i), "a"));
   }

   expected->entities.push_back(std::move(restaurant));
   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, ignorePropertyWithEmptyArray) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": []"
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";

   expected->entities.push_back(std::move(restaurant));

   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, ignorePropertyWithMixedTypes) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": [ \"Name\", 1 ]"
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";

   expected->entities.push_back(std::move(restaurant));

   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, ignorePropertyWithNestedArray) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": [ [ \"Name\" ] ]"
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";

   expected->entities.push_back(std::move(restaurant));

   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, enforceMaxNestingDepth) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": \"Ye ol greasy diner\","
       "\"1\": {"
       "  \"2\": {"
       "    \"3\": {"
       "      \"4\": {"
       "        \"5\": 6"
       "      }\n"
       "    }\n"
       "  }\n"
       "}\n"
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";
   restaurant->properties.push_back(
       CreateStringProperty("name", "Ye ol greasy diner"));

   EntityPtr entity1 = Entity::New();
   entity1->type = "Thing";

   EntityPtr entity2 = Entity::New();
   entity2->type = "Thing";

   EntityPtr entity3 = Entity::New();
   entity3->type = "Thing";

   entity2->properties.push_back(CreateEntityProperty("3", std::move(entity3)));

   entity1->properties.push_back(CreateEntityProperty("2", std::move(entity2)));

   restaurant->properties.push_back(
       CreateEntityProperty("1", std::move(entity1)));

   expected->entities.push_back(std::move(restaurant));
   EXPECT_EQ(expected, extracted);
 }

 TEST_F(DocumentMetadataExtractorTest, maxNestingDepthWithTerminalProperty) {
   SetHTMLInnerHTML(
       "<body>"
       "<script type=\"application/ld+json\">"
       "\n"
       "\n"
       "{\"@type\": \"Restaurant\","
       "\"name\": \"Ye ol greasy diner\","
       "\"1\": {"
       "  \"2\": {"
       "    \"3\": {"
       "      \"4\": 5"
       "    }\n"
       "  }\n"
       "}\n"
       "}\n"
       "\n"
       "</script>"
       "</body>");
   SetURL("http://www.test.com/");
   SetTitle("My neat website about cool stuff");

   WebPagePtr extracted = Extract();
   ASSERT_FALSE(extracted.is_null());

   WebPagePtr expected =
       CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

   EntityPtr restaurant = Entity::New();
   restaurant->type = "Restaurant";
   restaurant->properties.push_back(
       CreateStringProperty("name", "Ye ol greasy diner"));

   EntityPtr entity1 = Entity::New();
   entity1->type = "Thing";

   EntityPtr entity2 = Entity::New();
   entity2->type = "Thing";

   EntityPtr entity3 = Entity::New();
   entity3->type = "Thing";

   entity3->properties.push_back(CreateLongProperty("4", 5));

   entity2->properties.push_back(CreateEntityProperty("3", std::move(entity3)));

   entity1->properties.push_back(CreateEntityProperty("2", std::move(entity2)));

   restaurant->properties.push_back(
       CreateEntityProperty("1", std::move(entity1)));

   expected->entities.push_back(std::move(restaurant));
   EXPECT_EQ(expected, extracted);
 }

 }  // namespace
 }  // namespace blink
	// Copyright 2017 The Chromium 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 "third_party/blink/renderer/modules/document_metadata/document_metadata_extractor.h"

	#include <memory>
	#include <utility>

	#include "components/schema_org/common/metadata.mojom-blink.h"
	#include "testing/gtest/include/gtest/gtest.h"
	#include "third_party/blink/public/mojom/document_metadata/document_metadata.mojom-blink.h"
	#include "third_party/blink/renderer/core/dom/document.h"
	#include "third_party/blink/renderer/core/dom/element.h"
	#include "third_party/blink/renderer/core/testing/page_test_base.h"
	#include "third_party/blink/renderer/platform/json/json_values.h"
	#include "third_party/blink/renderer/platform/wtf/text/string_builder.h"

	namespace blink {

	namespace {

	using mojom::blink::WebPage;
	using mojom::blink::WebPagePtr;
	using schema_org::mojom::blink::Entity;
	using schema_org::mojom::blink::EntityPtr;
	using schema_org::mojom::blink::Property;
	using schema_org::mojom::blink::PropertyPtr;
	using schema_org::mojom::blink::Values;
	using schema_org::mojom::blink::ValuesPtr;

	class DocumentMetadataExtractorTest : public PageTestBase {
	public:
	DocumentMetadataExtractorTest() = default;

	protected:
	void TearDown() override {
	ThreadState::Current()->CollectAllGarbageForTesting();
	}

	WebPagePtr Extract() {
	return DocumentMetadataExtractor::Extract(GetDocument());
	}

	void SetHTMLInnerHTML(const String&);

	void SetURL(const String&);

	void SetTitle(const String&);

	PropertyPtr CreateStringProperty(const String& name, const String& value);

	PropertyPtr CreateBooleanProperty(const String& name, const bool& value);

	PropertyPtr CreateLongProperty(const String& name, const int64_t& value);

	PropertyPtr CreateEntityProperty(const String& name, EntityPtr value);

	WebPagePtr CreateWebPage(const String& url, const String& title);
	};

	void DocumentMetadataExtractorTest::SetHTMLInnerHTML(
	const String& html_content) {
	GetDocument().documentElement()->setInnerHTML((html_content));
	}

	void DocumentMetadataExtractorTest::SetURL(const String& url) {
	GetDocument().SetURL(blink::KURL(url));
	}

	void DocumentMetadataExtractorTest::SetTitle(const String& title) {
	GetDocument().setTitle(title);
	}

	PropertyPtr DocumentMetadataExtractorTest::CreateStringProperty(
	const String& name,
	const String& value) {
	PropertyPtr property = Property::New();
	property->name = name;
	property->values = Values::New();
	property->values->set_string_values({value});
	return property;
	}

	PropertyPtr DocumentMetadataExtractorTest::CreateBooleanProperty(
	const String& name,
	const bool& value) {
	PropertyPtr property = Property::New();
	property->name = name;
	property->values = Values::New();
	property->values->set_bool_values({value});
	return property;
	}

	PropertyPtr DocumentMetadataExtractorTest::CreateLongProperty(
	const String& name,
	const int64_t& value) {
	PropertyPtr property = Property::New();
	property->name = name;
	property->values = Values::New();
	property->values->set_long_values({value});
	return property;
	}

	PropertyPtr DocumentMetadataExtractorTest::CreateEntityProperty(
	const String& name,
	EntityPtr value) {
	PropertyPtr property = Property::New();
	property->name = name;
	property->values = Values::New();
	property->values->set_entity_values(Vector<EntityPtr>());
	property->values->get_entity_values().push_back(std::move(value));
	return property;
	}

	WebPagePtr DocumentMetadataExtractorTest::CreateWebPage(const String& url,
	const String& title) {
	WebPagePtr page = WebPage::New();
	page->url = blink::KURL(url);
	page->title = title;
	return page;
	}

	TEST_F(DocumentMetadataExtractorTest, empty) {
	ASSERT_TRUE(Extract().is_null());
	}

	TEST_F(DocumentMetadataExtractorTest, basic) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": \"Special characters for ya >_<;\""
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";
	restaurant->properties.push_back(
	CreateStringProperty("name", "Special characters for ya >_<;"));

	expected->entities.push_back(std::move(restaurant));
	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, header) {
	SetHTMLInnerHTML(
	"<head>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": \"Special characters for ya >_<;\""
	"}\n"
	"\n"
	"</script>"
	"</head>");

	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";
	restaurant->properties.push_back(
	CreateStringProperty("name", "Special characters for ya >_<;"));

	expected->entities.push_back(std::move(restaurant));
	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, booleanValue) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"open\": true"
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";
	restaurant->properties.push_back(CreateBooleanProperty("open", true));

	expected->entities.push_back(std::move(restaurant));
	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, longValue) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"long\": 1"
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";
	restaurant->properties.push_back(CreateLongProperty("long", 1ll));

	expected->entities.push_back(std::move(restaurant));
	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, doubleValue) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"double\": 1.5"
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";
	restaurant->properties.push_back(CreateStringProperty("double", "1.5"));

	expected->entities.push_back(std::move(restaurant));
	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, multiple) {
	SetHTMLInnerHTML(
	"<head>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": \"Special characters for ya >_<;\""
	"}\n"
	"\n"
	"</script>"
	"</head>"
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": \"Special characters for ya >_<;\""
	"}\n"
	"\n"
	"</script>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": \"Special characters for ya >_<;\""
	"}\n"
	"\n"
	"</script>"
	"</body>");

	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	for (int i = 0; i < 3; ++i) {
	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";
	restaurant->properties.push_back(
	CreateStringProperty("name", "Special characters for ya >_<;"));

	expected->entities.push_back(std::move(restaurant));
	}
	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, nested) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": \"Ye ol greasy diner\","
	"\"address\": {"
	"\n"
	" \"streetAddress\": \"123 Big Oak Road\","
	" \"addressLocality\": \"San Francisco\""
	" }\n"
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";
	restaurant->properties.push_back(
	CreateStringProperty("name", "Ye ol greasy diner"));

	EntityPtr address = Entity::New();
	address->type = "Thing";
	address->properties.push_back(
	CreateStringProperty("streetAddress", "123 Big Oak Road"));
	address->properties.push_back(
	CreateStringProperty("addressLocality", "San Francisco"));

	restaurant->properties.push_back(
	CreateEntityProperty("address", std::move(address)));

	expected->entities.push_back(std::move(restaurant));
	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, repeated) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": [ \"First name\", \"Second name\" ]"
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";

	PropertyPtr name = Property::New();
	name->name = "name";
	name->values = Values::New();
	Vector<String> nameValues;
	nameValues.push_back("First name");
	nameValues.push_back("Second name");
	name->values->set_string_values(nameValues);

	restaurant->properties.push_back(std::move(name));

	expected->entities.push_back(std::move(restaurant));

	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, repeatedObject) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": \"Ye ol greasy diner\","
	"\"address\": ["
	"\n"
	" {"
	" \"streetAddress\": \"123 Big Oak Road\","
	" \"addressLocality\": \"San Francisco\""
	" },\n"
	" {"
	" \"streetAddress\": \"123 Big Oak Road\","
	" \"addressLocality\": \"San Francisco\""
	" }\n"
	"]\n"
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";
	restaurant->properties.push_back(
	CreateStringProperty("name", "Ye ol greasy diner"));

	PropertyPtr addressProperty = Property::New();
	addressProperty->name = "address";
	addressProperty->values = Values::New();
	addressProperty->values->set_entity_values(Vector<EntityPtr>());
	for (int i = 0; i < 2; ++i) {
	EntityPtr address = Entity::New();
	address->type = "Thing";
	address->properties.push_back(
	CreateStringProperty("streetAddress", "123 Big Oak Road"));
	address->properties.push_back(
	CreateStringProperty("addressLocality", "San Francisco"));
	addressProperty->values->get_entity_values().push_back(std::move(address));
	}
	restaurant->properties.push_back(std::move(addressProperty));

	expected->entities.push_back(std::move(restaurant));
	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, truncateLongString) {
	StringBuilder maxLengthString;
	for (int i = 0; i < 200; ++i) {
	maxLengthString.Append("a");
	}
	StringBuilder tooLongString;
	tooLongString.Append(maxLengthString);
	tooLongString.Append("a");
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": \"" +
	tooLongString.ToString() +
	"\""
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";
	restaurant->properties.push_back(
	CreateStringProperty("name", maxLengthString.ToString()));

	expected->entities.push_back(std::move(restaurant));
	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, enforceTypeExists) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"name\": \"Special characters for ya >_<;\""
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_TRUE(extracted.is_null());
	}

	TEST_F(DocumentMetadataExtractorTest, UnhandledTypeIgnored) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"UnsupportedType\","
	"\"name\": \"Special characters for ya >_<;\""
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_TRUE(extracted.is_null());
	}

	TEST_F(DocumentMetadataExtractorTest, truncateTooManyValuesInField) {
	StringBuilder largeRepeatedField;
	largeRepeatedField.Append("[");
	for (int i = 0; i < 101; ++i) {
	largeRepeatedField.Append("\"a\"");
	if (i != 100) {
	largeRepeatedField.Append(", ");
	}
	}
	largeRepeatedField.Append("]");
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": " +
	largeRepeatedField.ToString() +
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";

	PropertyPtr name = Property::New();
	name->name = "name";
	name->values = Values::New();
	Vector<String> nameValues;
	for (int i = 0; i < 100; ++i) {
	nameValues.push_back("a");
	}
	name->values->set_string_values(nameValues);

	restaurant->properties.push_back(std::move(name));

	expected->entities.push_back(std::move(restaurant));

	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, truncateTooManyFields) {
	StringBuilder tooManyFields;
	for (int i = 0; i < 20; ++i) {
	tooManyFields.AppendFormat("\"%d\": \"a\"", i);
	if (i != 19) {
	tooManyFields.Append(",\n");
	}
	}
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\"," +
	tooManyFields.ToString() +
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";

	for (int i = 0; i < 19; ++i) {
	restaurant->properties.push_back(
	CreateStringProperty(String::Number(i), "a"));
	}

	expected->entities.push_back(std::move(restaurant));
	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, ignorePropertyWithEmptyArray) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": []"
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";

	expected->entities.push_back(std::move(restaurant));

	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, ignorePropertyWithMixedTypes) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": [ \"Name\", 1 ]"
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";

	expected->entities.push_back(std::move(restaurant));

	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, ignorePropertyWithNestedArray) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": [ [ \"Name\" ] ]"
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";

	expected->entities.push_back(std::move(restaurant));

	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, enforceMaxNestingDepth) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": \"Ye ol greasy diner\","
	"\"1\": {"
	" \"2\": {"
	" \"3\": {"
	" \"4\": {"
	" \"5\": 6"
	" }\n"
	" }\n"
	" }\n"
	"}\n"
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";
	restaurant->properties.push_back(
	CreateStringProperty("name", "Ye ol greasy diner"));

	EntityPtr entity1 = Entity::New();
	entity1->type = "Thing";

	EntityPtr entity2 = Entity::New();
	entity2->type = "Thing";

	EntityPtr entity3 = Entity::New();
	entity3->type = "Thing";

	entity2->properties.push_back(CreateEntityProperty("3", std::move(entity3)));

	entity1->properties.push_back(CreateEntityProperty("2", std::move(entity2)));

	restaurant->properties.push_back(
	CreateEntityProperty("1", std::move(entity1)));

	expected->entities.push_back(std::move(restaurant));
	EXPECT_EQ(expected, extracted);
	}

	TEST_F(DocumentMetadataExtractorTest, maxNestingDepthWithTerminalProperty) {
	SetHTMLInnerHTML(
	"<body>"
	"<script type=\"application/ld+json\">"
	"\n"
	"\n"
	"{\"@type\": \"Restaurant\","
	"\"name\": \"Ye ol greasy diner\","
	"\"1\": {"
	" \"2\": {"
	" \"3\": {"
	" \"4\": 5"
	" }\n"
	" }\n"
	"}\n"
	"}\n"
	"\n"
	"</script>"
	"</body>");
	SetURL("http://www.test.com/");
	SetTitle("My neat website about cool stuff");

	WebPagePtr extracted = Extract();
	ASSERT_FALSE(extracted.is_null());

	WebPagePtr expected =
	CreateWebPage("http://www.test.com/", "My neat website about cool stuff");

	EntityPtr restaurant = Entity::New();
	restaurant->type = "Restaurant";
	restaurant->properties.push_back(
	CreateStringProperty("name", "Ye ol greasy diner"));

	EntityPtr entity1 = Entity::New();
	entity1->type = "Thing";

	EntityPtr entity2 = Entity::New();
	entity2->type = "Thing";

	EntityPtr entity3 = Entity::New();
	entity3->type = "Thing";

	entity3->properties.push_back(CreateLongProperty("4", 5));

	entity2->properties.push_back(CreateEntityProperty("3", std::move(entity3)));

	entity1->properties.push_back(CreateEntityProperty("2", std::move(entity2)));

	restaurant->properties.push_back(
	CreateEntityProperty("1", std::move(entity1)));

	expected->entities.push_back(std::move(restaurant));
	EXPECT_EQ(expected, extracted);
	}

	} // namespace
	} // namespace blink