content/browser/webui/web_ui_data_source_unittest.cc - chromium/src.git - Git at Google

 // Copyright 2012 The Chromium Authors
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 #include "base/bind.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/webui/web_ui_data_source_impl.h"
 #include "content/public/test/browser_task_environment.h"
 #include "content/test/test_content_client.h"
 #include "services/network/public/mojom/content_security_policy.mojom.h"
 #include "testing/gtest/include/gtest/gtest.h"

 namespace content {
 namespace {

 const int kDummyStringId = 123;
 const int kDummyDefaultResourceId = 456;
 const int kDummyResourceId = 789;
 const int kDummyJSResourceId = 790;

 const char16_t kDummyString[] = u"foo";
 const char kDummyDefaultResource[] = "<html>foo</html>";
 const char kDummyResource[] = "<html>blah</html>";
 const char kDummyJSResource[] = "export const bar = 5;";

 class TestClient : public TestContentClient {
  public:
   ~TestClient() override {}

   std::u16string GetLocalizedString(int message_id) override {
     if (message_id == kDummyStringId)
       return kDummyString;
     return std::u16string();
   }

   base::RefCountedMemory* GetDataResourceBytes(int resource_id) override {
     base::RefCountedStaticMemory* bytes = nullptr;
     if (resource_id == kDummyDefaultResourceId) {
       bytes = new base::RefCountedStaticMemory(
           kDummyDefaultResource, std::size(kDummyDefaultResource));
     } else if (resource_id == kDummyResourceId) {
       bytes = new base::RefCountedStaticMemory(kDummyResource,
                                                std::size(kDummyResource));
     } else if (resource_id == kDummyJSResourceId) {
       bytes = new base::RefCountedStaticMemory(kDummyJSResource,
                                                std::size(kDummyJSResource));
     }
     return bytes;
   }
 };

 }  // namespace

 class WebUIDataSourceTest : public testing::Test {
  public:
   WebUIDataSourceTest() {}
   ~WebUIDataSourceTest() override {}
   WebUIDataSourceImpl* source() { return source_.get(); }

   void StartDataRequest(const std::string& path,
                         URLDataSource::GotDataCallback callback) {
     source_->StartDataRequest(GURL("https://any-host/" + path),
                               WebContents::Getter(), std::move(callback));
   }

   std::string GetMimeTypeForPath(const std::string& path) const {
     return source_->GetMimeType(GURL("https://any-host/" + path));
   }

   void HandleRequest(const std::string& path,
                      WebUIDataSourceImpl::GotDataCallback) {
     request_path_ = path;
   }

   void RequestFilterQueryStringCallback(
       scoped_refptr<base::RefCountedMemory> data);

  protected:
   std::string request_path_;
   TestClient client_;

  private:
   void SetUp() override {
     SetContentClient(&client_);
     WebUIDataSource* source = WebUIDataSourceImpl::Create("host");
     WebUIDataSourceImpl* source_impl =
         static_cast<WebUIDataSourceImpl*>(source);
     source_impl->disable_load_time_data_defaults_for_testing();
     source_ = base::WrapRefCounted(source_impl);
   }

   BrowserTaskEnvironment task_environment_;
   scoped_refptr<WebUIDataSourceImpl> source_;
 };

 void EmptyStringsCallback(bool from_js_module,
                           scoped_refptr<base::RefCountedMemory> data) {
   std::string result(data->front_as<char>(), data->size());
   EXPECT_NE(result.find("loadTimeData.data = {"), std::string::npos);
   EXPECT_NE(result.find("};"), std::string::npos);
   bool has_import = result.find("import {loadTimeData}") != std::string::npos;
   EXPECT_EQ(from_js_module, has_import);
 }

 TEST_F(WebUIDataSourceTest, EmptyStrings) {
   source()->UseStringsJs();
   StartDataRequest("strings.js", base::BindOnce(&EmptyStringsCallback, false));
 }

 TEST_F(WebUIDataSourceTest, EmptyModuleStrings) {
   source()->UseStringsJs();
   StartDataRequest("strings.m.js", base::BindOnce(&EmptyStringsCallback, true));
 }

 void SomeValuesCallback(scoped_refptr<base::RefCountedMemory> data) {
   std::string result(data->front_as<char>(), data->size());
   EXPECT_NE(result.find("\"flag\":true"), std::string::npos);
   EXPECT_NE(result.find("\"counter\":10"), std::string::npos);
   EXPECT_NE(result.find("\"debt\":-456"), std::string::npos);
   EXPECT_NE(result.find("\"threshold\":0.55"), std::string::npos);
   EXPECT_NE(result.find("\"planet\":\"pluto\""), std::string::npos);
   EXPECT_NE(result.find("\"button\":\"foo\""), std::string::npos);
 }

 TEST_F(WebUIDataSourceTest, SomeValues) {
   source()->UseStringsJs();
   source()->AddBoolean("flag", true);
   source()->AddInteger("counter", 10);
   source()->AddInteger("debt", -456);
   source()->AddDouble("threshold", 0.55);
   source()->AddString("planet", u"pluto");
   source()->AddLocalizedString("button", kDummyStringId);
   StartDataRequest("strings.js", base::BindOnce(&SomeValuesCallback));
 }

 void DefaultResourceFoobarCallback(scoped_refptr<base::RefCountedMemory> data) {
   std::string result(data->front_as<char>(), data->size());
   EXPECT_NE(result.find(kDummyDefaultResource), std::string::npos);
 }

 void DefaultResourceStringsCallback(
     scoped_refptr<base::RefCountedMemory> data) {
   std::string result(data->front_as<char>(), data->size());
   EXPECT_NE(result.find(kDummyDefaultResource), std::string::npos);
 }

 TEST_F(WebUIDataSourceTest, DefaultResource) {
   source()->SetDefaultResource(kDummyDefaultResourceId);
   StartDataRequest("foobar", base::BindOnce(&DefaultResourceFoobarCallback));
   StartDataRequest("strings.js",
                    base::BindOnce(&DefaultResourceStringsCallback));
 }

 void NamedResourceFoobarCallback(scoped_refptr<base::RefCountedMemory> data) {
   std::string result(data->front_as<char>(), data->size());
   EXPECT_NE(result.find(kDummyResource), std::string::npos);
 }

 void NamedResourceStringsCallback(scoped_refptr<base::RefCountedMemory> data) {
   std::string result(data->front_as<char>(), data->size());
   EXPECT_NE(result.find(kDummyDefaultResource), std::string::npos);
 }

 TEST_F(WebUIDataSourceTest, NamedResource) {
   source()->SetDefaultResource(kDummyDefaultResourceId);
   source()->AddResourcePath("foobar", kDummyResourceId);
   StartDataRequest("foobar", base::BindOnce(&NamedResourceFoobarCallback));
   StartDataRequest("strings.js", base::BindOnce(&NamedResourceStringsCallback));
 }

 void NamedResourceWithQueryStringCallback(
     scoped_refptr<base::RefCountedMemory> data) {
   std::string result(data->front_as<char>(), data->size());
   EXPECT_NE(result.find(kDummyResource), std::string::npos);
 }

 TEST_F(WebUIDataSourceTest, NamedResourceWithQueryString) {
   source()->SetDefaultResource(kDummyDefaultResourceId);
   source()->AddResourcePath("foobar", kDummyResourceId);
   StartDataRequest("foobar?query?string",
                    base::BindOnce(&NamedResourceWithQueryStringCallback));
 }

 void NamedResourceWithUrlFragmentCallback(
     scoped_refptr<base::RefCountedMemory> data) {
   EXPECT_NE(data, nullptr);
   std::string result(data->front_as<char>(), data->size());
   EXPECT_NE(result.find(kDummyResource), std::string::npos);
 }

 TEST_F(WebUIDataSourceTest, NamedResourceWithUrlFragment) {
   source()->AddResourcePath("foobar", kDummyResourceId);
   StartDataRequest("foobar#fragment",
                    base::BindOnce(&NamedResourceWithUrlFragmentCallback));
 }

 void WebUIDataSourceTest::RequestFilterQueryStringCallback(
     scoped_refptr<base::RefCountedMemory> data) {
   std::string result(data->front_as<char>(), data->size());
   // Check that the query string is passed to the request filter (and not
   // trimmed).
   EXPECT_EQ("foobar?query?string", request_path_);
 }

 TEST_F(WebUIDataSourceTest, RequestFilterQueryString) {
   request_path_ = std::string();
   source()->SetRequestFilter(
       base::BindRepeating([](const std::string& path) { return true; }),
       base::BindRepeating(&WebUIDataSourceTest::HandleRequest,
                           base::Unretained(this)));
   source()->SetDefaultResource(kDummyDefaultResourceId);
   source()->AddResourcePath("foobar", kDummyResourceId);
   StartDataRequest(
       "foobar?query?string",
       base::BindOnce(&WebUIDataSourceTest::RequestFilterQueryStringCallback,
                      base::Unretained(this)));
 }

 TEST_F(WebUIDataSourceTest, MimeType) {
   const char* css = "text/css";
   const char* html = "text/html";
   const char* js = "application/javascript";
   const char* jpg = "image/jpeg";
   const char* json = "application/json";
   const char* mp4 = "video/mp4";
   const char* pdf = "application/pdf";
   const char* png = "image/png";
   const char* svg = "image/svg+xml";
   const char* wasm = "application/wasm";
   const char* woff2 = "application/font-woff2";

   EXPECT_EQ(GetMimeTypeForPath(std::string()), html);
   EXPECT_EQ(GetMimeTypeForPath("foo"), html);
   EXPECT_EQ(GetMimeTypeForPath("foo.html"), html);
   EXPECT_EQ(GetMimeTypeForPath(".js"), js);
   EXPECT_EQ(GetMimeTypeForPath("foo.js"), js);
   EXPECT_EQ(GetMimeTypeForPath("js"), html);
   EXPECT_EQ(GetMimeTypeForPath("foojs"), html);
   EXPECT_EQ(GetMimeTypeForPath("foo.jsp"), html);
   EXPECT_EQ(GetMimeTypeForPath("foocss"), html);
   EXPECT_EQ(GetMimeTypeForPath("foo.css"), css);
   EXPECT_EQ(GetMimeTypeForPath(".css.foo"), html);
   EXPECT_EQ(GetMimeTypeForPath("foopng"), html);
   EXPECT_EQ(GetMimeTypeForPath("foo.png"), png);
   EXPECT_EQ(GetMimeTypeForPath(".png.foo"), html);
   EXPECT_EQ(GetMimeTypeForPath("foo.svg"), svg);
   EXPECT_EQ(GetMimeTypeForPath("foo.js.wasm"), wasm);
   EXPECT_EQ(GetMimeTypeForPath("foo.out.wasm"), wasm);
   EXPECT_EQ(GetMimeTypeForPath(".woff2"), woff2);
   EXPECT_EQ(GetMimeTypeForPath("foo.json"), json);
   EXPECT_EQ(GetMimeTypeForPath("foo.pdf"), pdf);
   EXPECT_EQ(GetMimeTypeForPath("foo.jpg"), jpg);
   EXPECT_EQ(GetMimeTypeForPath("foo.mp4"), mp4);

   // With query strings.
   EXPECT_EQ(GetMimeTypeForPath("foo?abc?abc"), html);
   EXPECT_EQ(GetMimeTypeForPath("foo.html?abc?abc"), html);
   EXPECT_EQ(GetMimeTypeForPath("foo.css?abc?abc"), css);
   EXPECT_EQ(GetMimeTypeForPath("foo.js?abc?abc"), js);
   EXPECT_EQ(GetMimeTypeForPath("foo.svg?abc?abc"), svg);

   // With URL fragments.
   EXPECT_EQ(GetMimeTypeForPath("foo#abc#abc"), html);
   EXPECT_EQ(GetMimeTypeForPath("foo.html#abc#abc"), html);
   EXPECT_EQ(GetMimeTypeForPath("foo.css#abc#abc"), css);
   EXPECT_EQ(GetMimeTypeForPath("foo.js#abc#abc"), js);
   EXPECT_EQ(GetMimeTypeForPath("foo.svg#abc#abc"), svg);

   // With query strings and URL fragments.
   EXPECT_EQ(GetMimeTypeForPath("foo?abc#abc"), html);
   EXPECT_EQ(GetMimeTypeForPath("foo.html?abc#abc"), html);
   EXPECT_EQ(GetMimeTypeForPath("foo.css?abc#abc"), css);
   EXPECT_EQ(GetMimeTypeForPath("foo.js?abc#abc"), js);
   EXPECT_EQ(GetMimeTypeForPath("foo.svg?abc#abc"), svg);
 }

 TEST_F(WebUIDataSourceTest, ShouldServeMimeTypeAsContentTypeHeader) {
   EXPECT_TRUE(source()->source()->ShouldServeMimeTypeAsContentTypeHeader());
 }

 void InvalidResourceCallback(scoped_refptr<base::RefCountedMemory> data) {
   EXPECT_EQ(nullptr, data);
 }

 void NamedResourceBarJSCallback(scoped_refptr<base::RefCountedMemory> data) {
   std::string result(data->front_as<char>(), data->size());
   EXPECT_NE(result.find(kDummyJSResource), std::string::npos);
 }

 TEST_F(WebUIDataSourceTest, NoSetDefaultResource) {
   // Set an empty path resource instead of a default.
   source()->AddResourcePath("", kDummyDefaultResourceId);
   source()->AddResourcePath("foobar.html", kDummyResourceId);
   source()->AddResourcePath("bar.js", kDummyJSResourceId);

   // Empty paths return the resource for the empty path.
   StartDataRequest("", base::BindOnce(&DefaultResourceFoobarCallback));
   StartDataRequest("/", base::BindOnce(&DefaultResourceFoobarCallback));
   // Un-mapped path that does not look like a file request also returns the
   // resource associated with the empty path.
   StartDataRequest("subpage", base::BindOnce(&DefaultResourceFoobarCallback));
   // Paths that are valid filenames succeed and return the file contents.
   StartDataRequest("foobar.html", base::BindOnce(&NamedResourceFoobarCallback));
   StartDataRequest("bar.js", base::BindOnce(&NamedResourceBarJSCallback));
   // Invalid file requests fail
   StartDataRequest("does_not_exist.html",
                    base::BindOnce(&InvalidResourceCallback));
   StartDataRequest("does_not_exist.js",
                    base::BindOnce(&InvalidResourceCallback));

   // strings.m.js fails until UseStringsJs is called.
   StartDataRequest("strings.m.js", base::BindOnce(&InvalidResourceCallback));
   source()->UseStringsJs();
   StartDataRequest("strings.m.js", base::BindOnce(&EmptyStringsCallback, true));
 }

 TEST_F(WebUIDataSourceTest, SetCspValues) {
   URLDataSource* url_data_source = source()->source();

   // Default values.
   EXPECT_EQ("child-src 'none';",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::ChildSrc));
   EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
                     network::mojom::CSPDirectiveName::ConnectSrc));
   EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
                     network::mojom::CSPDirectiveName::DefaultSrc));
   EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
                     network::mojom::CSPDirectiveName::FrameSrc));
   EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
                     network::mojom::CSPDirectiveName::ImgSrc));
   EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
                     network::mojom::CSPDirectiveName::MediaSrc));
   EXPECT_EQ("object-src 'none';",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::ObjectSrc));
   EXPECT_EQ("script-src chrome://resources 'self';",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::ScriptSrc));
   EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
                     network::mojom::CSPDirectiveName::StyleSrc));
   EXPECT_EQ("require-trusted-types-for 'script';",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::RequireTrustedTypesFor));
   EXPECT_EQ("trusted-types;",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::TrustedTypes));

   // Override each directive and test it updates the underlying URLDataSource.
   source()->OverrideContentSecurityPolicy(
       network::mojom::CSPDirectiveName::ChildSrc, "child-src 'self';");
   EXPECT_EQ("child-src 'self';",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::ChildSrc));

   source()->OverrideContentSecurityPolicy(
       network::mojom::CSPDirectiveName::ConnectSrc,
       "connect-src 'self' 'unsafe-inline';");
   EXPECT_EQ("connect-src 'self' 'unsafe-inline';",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::ConnectSrc));

   source()->OverrideContentSecurityPolicy(
       network::mojom::CSPDirectiveName::DefaultSrc, "default-src 'self';");
   EXPECT_EQ("default-src 'self';",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::DefaultSrc));

   source()->OverrideContentSecurityPolicy(
       network::mojom::CSPDirectiveName::FrameSrc, "frame-src 'self';");
   EXPECT_EQ("frame-src 'self';",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::FrameSrc));

   source()->OverrideContentSecurityPolicy(
       network::mojom::CSPDirectiveName::ImgSrc, "img-src 'self' blob:;");
   EXPECT_EQ("img-src 'self' blob:;",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::ImgSrc));

   source()->OverrideContentSecurityPolicy(
       network::mojom::CSPDirectiveName::MediaSrc, "media-src 'self' blob:;");
   EXPECT_EQ("media-src 'self' blob:;",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::MediaSrc));

   source()->OverrideContentSecurityPolicy(
       network::mojom::CSPDirectiveName::ObjectSrc, "object-src 'self' data:;");
   EXPECT_EQ("object-src 'self' data:;",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::ObjectSrc));

   source()->OverrideContentSecurityPolicy(
       network::mojom::CSPDirectiveName::ScriptSrc,
       "script-src chrome://resources 'self' 'unsafe-inline';");
   EXPECT_EQ("script-src chrome://resources 'self' 'unsafe-inline';",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::ScriptSrc));

   source()->OverrideContentSecurityPolicy(
       network::mojom::CSPDirectiveName::StyleSrc,
       "style-src 'self' 'unsafe-inline';");
   EXPECT_EQ("style-src 'self' 'unsafe-inline';",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::StyleSrc));

   source()->OverrideContentSecurityPolicy(
       network::mojom::CSPDirectiveName::RequireTrustedTypesFor,
       "require-trusted-types-for 'wasm';");
   EXPECT_EQ("require-trusted-types-for 'wasm';",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::RequireTrustedTypesFor));
   source()->OverrideContentSecurityPolicy(
       network::mojom::CSPDirectiveName::TrustedTypes, "trusted-types test;");
   EXPECT_EQ("trusted-types test;",
             url_data_source->GetContentSecurityPolicy(
                 network::mojom::CSPDirectiveName::TrustedTypes));
   source()->DisableTrustedTypesCSP();
   EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
                     network::mojom::CSPDirectiveName::RequireTrustedTypesFor));
   EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
                     network::mojom::CSPDirectiveName::TrustedTypes));
 }

 TEST_F(WebUIDataSourceTest, SetCrossOriginPolicyValues) {
   URLDataSource* url_data_source = source()->source();

   // Default values.
   EXPECT_EQ("", url_data_source->GetCrossOriginOpenerPolicy());
   EXPECT_EQ("", url_data_source->GetCrossOriginEmbedderPolicy());
   EXPECT_EQ("", url_data_source->GetCrossOriginResourcePolicy());

   // Overridden values.
   source()->OverrideCrossOriginOpenerPolicy("same-origin");
   EXPECT_EQ("same-origin", url_data_source->GetCrossOriginOpenerPolicy());
   source()->OverrideCrossOriginEmbedderPolicy("require-corp");
   EXPECT_EQ("require-corp", url_data_source->GetCrossOriginEmbedderPolicy());
   source()->OverrideCrossOriginResourcePolicy("cross-origin");
   EXPECT_EQ("cross-origin", url_data_source->GetCrossOriginResourcePolicy());

   // Remove/change the values.
   source()->OverrideCrossOriginOpenerPolicy("same-site");
   EXPECT_EQ("same-site", url_data_source->GetCrossOriginOpenerPolicy());
   source()->OverrideCrossOriginEmbedderPolicy("");
   EXPECT_EQ("", url_data_source->GetCrossOriginEmbedderPolicy());
   source()->OverrideCrossOriginResourcePolicy("same-origin");
   EXPECT_EQ("same-origin", url_data_source->GetCrossOriginResourcePolicy());
 }

 }  // namespace content
	// Copyright 2012 The Chromium Authors
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	#include "base/bind.h"
	#include "base/memory/ref_counted_memory.h"
	#include "base/strings/utf_string_conversions.h"
	#include "content/browser/webui/web_ui_data_source_impl.h"
	#include "content/public/test/browser_task_environment.h"
	#include "content/test/test_content_client.h"
	#include "services/network/public/mojom/content_security_policy.mojom.h"
	#include "testing/gtest/include/gtest/gtest.h"

	namespace content {
	namespace {

	const int kDummyStringId = 123;
	const int kDummyDefaultResourceId = 456;
	const int kDummyResourceId = 789;
	const int kDummyJSResourceId = 790;

	const char16_t kDummyString[] = u"foo";
	const char kDummyDefaultResource[] = "<html>foo</html>";
	const char kDummyResource[] = "<html>blah</html>";
	const char kDummyJSResource[] = "export const bar = 5;";

	class TestClient : public TestContentClient {
	public:
	~TestClient() override {}

	std::u16string GetLocalizedString(int message_id) override {
	if (message_id == kDummyStringId)
	return kDummyString;
	return std::u16string();
	}

	base::RefCountedMemory* GetDataResourceBytes(int resource_id) override {
	base::RefCountedStaticMemory* bytes = nullptr;
	if (resource_id == kDummyDefaultResourceId) {
	bytes = new base::RefCountedStaticMemory(
	kDummyDefaultResource, std::size(kDummyDefaultResource));
	} else if (resource_id == kDummyResourceId) {
	bytes = new base::RefCountedStaticMemory(kDummyResource,
	std::size(kDummyResource));
	} else if (resource_id == kDummyJSResourceId) {
	bytes = new base::RefCountedStaticMemory(kDummyJSResource,
	std::size(kDummyJSResource));
	}
	return bytes;
	}
	};

	} // namespace

	class WebUIDataSourceTest : public testing::Test {
	public:
	WebUIDataSourceTest() {}
	~WebUIDataSourceTest() override {}
	WebUIDataSourceImpl* source() { return source_.get(); }

	void StartDataRequest(const std::string& path,
	URLDataSource::GotDataCallback callback) {
	source_->StartDataRequest(GURL("https://any-host/" + path),
	WebContents::Getter(), std::move(callback));
	}

	std::string GetMimeTypeForPath(const std::string& path) const {
	return source_->GetMimeType(GURL("https://any-host/" + path));
	}

	void HandleRequest(const std::string& path,
	WebUIDataSourceImpl::GotDataCallback) {
	request_path_ = path;
	}

	void RequestFilterQueryStringCallback(
	scoped_refptr<base::RefCountedMemory> data);

	protected:
	std::string request_path_;
	TestClient client_;

	private:
	void SetUp() override {
	SetContentClient(&client_);
	WebUIDataSource* source = WebUIDataSourceImpl::Create("host");
	WebUIDataSourceImpl* source_impl =
	static_cast<WebUIDataSourceImpl*>(source);
	source_impl->disable_load_time_data_defaults_for_testing();
	source_ = base::WrapRefCounted(source_impl);
	}

	BrowserTaskEnvironment task_environment_;
	scoped_refptr<WebUIDataSourceImpl> source_;
	};

	void EmptyStringsCallback(bool from_js_module,
	scoped_refptr<base::RefCountedMemory> data) {
	std::string result(data->front_as<char>(), data->size());
	EXPECT_NE(result.find("loadTimeData.data = {"), std::string::npos);
	EXPECT_NE(result.find("};"), std::string::npos);
	bool has_import = result.find("import {loadTimeData}") != std::string::npos;
	EXPECT_EQ(from_js_module, has_import);
	}

	TEST_F(WebUIDataSourceTest, EmptyStrings) {
	source()->UseStringsJs();
	StartDataRequest("strings.js", base::BindOnce(&EmptyStringsCallback, false));
	}

	TEST_F(WebUIDataSourceTest, EmptyModuleStrings) {
	source()->UseStringsJs();
	StartDataRequest("strings.m.js", base::BindOnce(&EmptyStringsCallback, true));
	}

	void SomeValuesCallback(scoped_refptr<base::RefCountedMemory> data) {
	std::string result(data->front_as<char>(), data->size());
	EXPECT_NE(result.find("\"flag\":true"), std::string::npos);
	EXPECT_NE(result.find("\"counter\":10"), std::string::npos);
	EXPECT_NE(result.find("\"debt\":-456"), std::string::npos);
	EXPECT_NE(result.find("\"threshold\":0.55"), std::string::npos);
	EXPECT_NE(result.find("\"planet\":\"pluto\""), std::string::npos);
	EXPECT_NE(result.find("\"button\":\"foo\""), std::string::npos);
	}

	TEST_F(WebUIDataSourceTest, SomeValues) {
	source()->UseStringsJs();
	source()->AddBoolean("flag", true);
	source()->AddInteger("counter", 10);
	source()->AddInteger("debt", -456);
	source()->AddDouble("threshold", 0.55);
	source()->AddString("planet", u"pluto");
	source()->AddLocalizedString("button", kDummyStringId);
	StartDataRequest("strings.js", base::BindOnce(&SomeValuesCallback));
	}

	void DefaultResourceFoobarCallback(scoped_refptr<base::RefCountedMemory> data) {
	std::string result(data->front_as<char>(), data->size());
	EXPECT_NE(result.find(kDummyDefaultResource), std::string::npos);
	}

	void DefaultResourceStringsCallback(
	scoped_refptr<base::RefCountedMemory> data) {
	std::string result(data->front_as<char>(), data->size());
	EXPECT_NE(result.find(kDummyDefaultResource), std::string::npos);
	}

	TEST_F(WebUIDataSourceTest, DefaultResource) {
	source()->SetDefaultResource(kDummyDefaultResourceId);
	StartDataRequest("foobar", base::BindOnce(&DefaultResourceFoobarCallback));
	StartDataRequest("strings.js",
	base::BindOnce(&DefaultResourceStringsCallback));
	}

	void NamedResourceFoobarCallback(scoped_refptr<base::RefCountedMemory> data) {
	std::string result(data->front_as<char>(), data->size());
	EXPECT_NE(result.find(kDummyResource), std::string::npos);
	}

	void NamedResourceStringsCallback(scoped_refptr<base::RefCountedMemory> data) {
	std::string result(data->front_as<char>(), data->size());
	EXPECT_NE(result.find(kDummyDefaultResource), std::string::npos);
	}

	TEST_F(WebUIDataSourceTest, NamedResource) {
	source()->SetDefaultResource(kDummyDefaultResourceId);
	source()->AddResourcePath("foobar", kDummyResourceId);
	StartDataRequest("foobar", base::BindOnce(&NamedResourceFoobarCallback));
	StartDataRequest("strings.js", base::BindOnce(&NamedResourceStringsCallback));
	}

	void NamedResourceWithQueryStringCallback(
	scoped_refptr<base::RefCountedMemory> data) {
	std::string result(data->front_as<char>(), data->size());
	EXPECT_NE(result.find(kDummyResource), std::string::npos);
	}

	TEST_F(WebUIDataSourceTest, NamedResourceWithQueryString) {
	source()->SetDefaultResource(kDummyDefaultResourceId);
	source()->AddResourcePath("foobar", kDummyResourceId);
	StartDataRequest("foobar?query?string",
	base::BindOnce(&NamedResourceWithQueryStringCallback));
	}

	void NamedResourceWithUrlFragmentCallback(
	scoped_refptr<base::RefCountedMemory> data) {
	EXPECT_NE(data, nullptr);
	std::string result(data->front_as<char>(), data->size());
	EXPECT_NE(result.find(kDummyResource), std::string::npos);
	}

	TEST_F(WebUIDataSourceTest, NamedResourceWithUrlFragment) {
	source()->AddResourcePath("foobar", kDummyResourceId);
	StartDataRequest("foobar#fragment",
	base::BindOnce(&NamedResourceWithUrlFragmentCallback));
	}

	void WebUIDataSourceTest::RequestFilterQueryStringCallback(
	scoped_refptr<base::RefCountedMemory> data) {
	std::string result(data->front_as<char>(), data->size());
	// Check that the query string is passed to the request filter (and not
	// trimmed).
	EXPECT_EQ("foobar?query?string", request_path_);
	}

	TEST_F(WebUIDataSourceTest, RequestFilterQueryString) {
	request_path_ = std::string();
	source()->SetRequestFilter(
	base::BindRepeating([](const std::string& path) { return true; }),
	base::BindRepeating(&WebUIDataSourceTest::HandleRequest,
	base::Unretained(this)));
	source()->SetDefaultResource(kDummyDefaultResourceId);
	source()->AddResourcePath("foobar", kDummyResourceId);
	StartDataRequest(
	"foobar?query?string",
	base::BindOnce(&WebUIDataSourceTest::RequestFilterQueryStringCallback,
	base::Unretained(this)));
	}

	TEST_F(WebUIDataSourceTest, MimeType) {
	const char* css = "text/css";
	const char* html = "text/html";
	const char* js = "application/javascript";
	const char* jpg = "image/jpeg";
	const char* json = "application/json";
	const char* mp4 = "video/mp4";
	const char* pdf = "application/pdf";
	const char* png = "image/png";
	const char* svg = "image/svg+xml";
	const char* wasm = "application/wasm";
	const char* woff2 = "application/font-woff2";

	EXPECT_EQ(GetMimeTypeForPath(std::string()), html);
	EXPECT_EQ(GetMimeTypeForPath("foo"), html);
	EXPECT_EQ(GetMimeTypeForPath("foo.html"), html);
	EXPECT_EQ(GetMimeTypeForPath(".js"), js);
	EXPECT_EQ(GetMimeTypeForPath("foo.js"), js);
	EXPECT_EQ(GetMimeTypeForPath("js"), html);
	EXPECT_EQ(GetMimeTypeForPath("foojs"), html);
	EXPECT_EQ(GetMimeTypeForPath("foo.jsp"), html);
	EXPECT_EQ(GetMimeTypeForPath("foocss"), html);
	EXPECT_EQ(GetMimeTypeForPath("foo.css"), css);
	EXPECT_EQ(GetMimeTypeForPath(".css.foo"), html);
	EXPECT_EQ(GetMimeTypeForPath("foopng"), html);
	EXPECT_EQ(GetMimeTypeForPath("foo.png"), png);
	EXPECT_EQ(GetMimeTypeForPath(".png.foo"), html);
	EXPECT_EQ(GetMimeTypeForPath("foo.svg"), svg);
	EXPECT_EQ(GetMimeTypeForPath("foo.js.wasm"), wasm);
	EXPECT_EQ(GetMimeTypeForPath("foo.out.wasm"), wasm);
	EXPECT_EQ(GetMimeTypeForPath(".woff2"), woff2);
	EXPECT_EQ(GetMimeTypeForPath("foo.json"), json);
	EXPECT_EQ(GetMimeTypeForPath("foo.pdf"), pdf);
	EXPECT_EQ(GetMimeTypeForPath("foo.jpg"), jpg);
	EXPECT_EQ(GetMimeTypeForPath("foo.mp4"), mp4);

	// With query strings.
	EXPECT_EQ(GetMimeTypeForPath("foo?abc?abc"), html);
	EXPECT_EQ(GetMimeTypeForPath("foo.html?abc?abc"), html);
	EXPECT_EQ(GetMimeTypeForPath("foo.css?abc?abc"), css);
	EXPECT_EQ(GetMimeTypeForPath("foo.js?abc?abc"), js);
	EXPECT_EQ(GetMimeTypeForPath("foo.svg?abc?abc"), svg);

	// With URL fragments.
	EXPECT_EQ(GetMimeTypeForPath("foo#abc#abc"), html);
	EXPECT_EQ(GetMimeTypeForPath("foo.html#abc#abc"), html);
	EXPECT_EQ(GetMimeTypeForPath("foo.css#abc#abc"), css);
	EXPECT_EQ(GetMimeTypeForPath("foo.js#abc#abc"), js);
	EXPECT_EQ(GetMimeTypeForPath("foo.svg#abc#abc"), svg);

	// With query strings and URL fragments.
	EXPECT_EQ(GetMimeTypeForPath("foo?abc#abc"), html);
	EXPECT_EQ(GetMimeTypeForPath("foo.html?abc#abc"), html);
	EXPECT_EQ(GetMimeTypeForPath("foo.css?abc#abc"), css);
	EXPECT_EQ(GetMimeTypeForPath("foo.js?abc#abc"), js);
	EXPECT_EQ(GetMimeTypeForPath("foo.svg?abc#abc"), svg);
	}

	TEST_F(WebUIDataSourceTest, ShouldServeMimeTypeAsContentTypeHeader) {
	EXPECT_TRUE(source()->source()->ShouldServeMimeTypeAsContentTypeHeader());
	}

	void InvalidResourceCallback(scoped_refptr<base::RefCountedMemory> data) {
	EXPECT_EQ(nullptr, data);
	}

	void NamedResourceBarJSCallback(scoped_refptr<base::RefCountedMemory> data) {
	std::string result(data->front_as<char>(), data->size());
	EXPECT_NE(result.find(kDummyJSResource), std::string::npos);
	}

	TEST_F(WebUIDataSourceTest, NoSetDefaultResource) {
	// Set an empty path resource instead of a default.
	source()->AddResourcePath("", kDummyDefaultResourceId);
	source()->AddResourcePath("foobar.html", kDummyResourceId);
	source()->AddResourcePath("bar.js", kDummyJSResourceId);

	// Empty paths return the resource for the empty path.
	StartDataRequest("", base::BindOnce(&DefaultResourceFoobarCallback));
	StartDataRequest("/", base::BindOnce(&DefaultResourceFoobarCallback));
	// Un-mapped path that does not look like a file request also returns the
	// resource associated with the empty path.
	StartDataRequest("subpage", base::BindOnce(&DefaultResourceFoobarCallback));
	// Paths that are valid filenames succeed and return the file contents.
	StartDataRequest("foobar.html", base::BindOnce(&NamedResourceFoobarCallback));
	StartDataRequest("bar.js", base::BindOnce(&NamedResourceBarJSCallback));
	// Invalid file requests fail
	StartDataRequest("does_not_exist.html",
	base::BindOnce(&InvalidResourceCallback));
	StartDataRequest("does_not_exist.js",
	base::BindOnce(&InvalidResourceCallback));

	// strings.m.js fails until UseStringsJs is called.
	StartDataRequest("strings.m.js", base::BindOnce(&InvalidResourceCallback));
	source()->UseStringsJs();
	StartDataRequest("strings.m.js", base::BindOnce(&EmptyStringsCallback, true));
	}

	TEST_F(WebUIDataSourceTest, SetCspValues) {
	URLDataSource* url_data_source = source()->source();

	// Default values.
	EXPECT_EQ("child-src 'none';",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ChildSrc));
	EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ConnectSrc));
	EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::DefaultSrc));
	EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::FrameSrc));
	EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ImgSrc));
	EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::MediaSrc));
	EXPECT_EQ("object-src 'none';",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ObjectSrc));
	EXPECT_EQ("script-src chrome://resources 'self';",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ScriptSrc));
	EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::StyleSrc));
	EXPECT_EQ("require-trusted-types-for 'script';",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::RequireTrustedTypesFor));
	EXPECT_EQ("trusted-types;",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::TrustedTypes));

	// Override each directive and test it updates the underlying URLDataSource.
	source()->OverrideContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ChildSrc, "child-src 'self';");
	EXPECT_EQ("child-src 'self';",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ChildSrc));

	source()->OverrideContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ConnectSrc,
	"connect-src 'self' 'unsafe-inline';");
	EXPECT_EQ("connect-src 'self' 'unsafe-inline';",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ConnectSrc));

	source()->OverrideContentSecurityPolicy(
	network::mojom::CSPDirectiveName::DefaultSrc, "default-src 'self';");
	EXPECT_EQ("default-src 'self';",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::DefaultSrc));

	source()->OverrideContentSecurityPolicy(
	network::mojom::CSPDirectiveName::FrameSrc, "frame-src 'self';");
	EXPECT_EQ("frame-src 'self';",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::FrameSrc));

	source()->OverrideContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ImgSrc, "img-src 'self' blob:;");
	EXPECT_EQ("img-src 'self' blob:;",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ImgSrc));

	source()->OverrideContentSecurityPolicy(
	network::mojom::CSPDirectiveName::MediaSrc, "media-src 'self' blob:;");
	EXPECT_EQ("media-src 'self' blob:;",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::MediaSrc));

	source()->OverrideContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ObjectSrc, "object-src 'self' data:;");
	EXPECT_EQ("object-src 'self' data:;",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ObjectSrc));

	source()->OverrideContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ScriptSrc,
	"script-src chrome://resources 'self' 'unsafe-inline';");
	EXPECT_EQ("script-src chrome://resources 'self' 'unsafe-inline';",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::ScriptSrc));

	source()->OverrideContentSecurityPolicy(
	network::mojom::CSPDirectiveName::StyleSrc,
	"style-src 'self' 'unsafe-inline';");
	EXPECT_EQ("style-src 'self' 'unsafe-inline';",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::StyleSrc));

	source()->OverrideContentSecurityPolicy(
	network::mojom::CSPDirectiveName::RequireTrustedTypesFor,
	"require-trusted-types-for 'wasm';");
	EXPECT_EQ("require-trusted-types-for 'wasm';",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::RequireTrustedTypesFor));
	source()->OverrideContentSecurityPolicy(
	network::mojom::CSPDirectiveName::TrustedTypes, "trusted-types test;");
	EXPECT_EQ("trusted-types test;",
	url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::TrustedTypes));
	source()->DisableTrustedTypesCSP();
	EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::RequireTrustedTypesFor));
	EXPECT_EQ("", url_data_source->GetContentSecurityPolicy(
	network::mojom::CSPDirectiveName::TrustedTypes));
	}

	TEST_F(WebUIDataSourceTest, SetCrossOriginPolicyValues) {
	URLDataSource* url_data_source = source()->source();

	// Default values.
	EXPECT_EQ("", url_data_source->GetCrossOriginOpenerPolicy());
	EXPECT_EQ("", url_data_source->GetCrossOriginEmbedderPolicy());
	EXPECT_EQ("", url_data_source->GetCrossOriginResourcePolicy());

	// Overridden values.
	source()->OverrideCrossOriginOpenerPolicy("same-origin");
	EXPECT_EQ("same-origin", url_data_source->GetCrossOriginOpenerPolicy());
	source()->OverrideCrossOriginEmbedderPolicy("require-corp");
	EXPECT_EQ("require-corp", url_data_source->GetCrossOriginEmbedderPolicy());
	source()->OverrideCrossOriginResourcePolicy("cross-origin");
	EXPECT_EQ("cross-origin", url_data_source->GetCrossOriginResourcePolicy());

	// Remove/change the values.
	source()->OverrideCrossOriginOpenerPolicy("same-site");
	EXPECT_EQ("same-site", url_data_source->GetCrossOriginOpenerPolicy());
	source()->OverrideCrossOriginEmbedderPolicy("");
	EXPECT_EQ("", url_data_source->GetCrossOriginEmbedderPolicy());
	source()->OverrideCrossOriginResourcePolicy("same-origin");
	EXPECT_EQ("same-origin", url_data_source->GetCrossOriginResourcePolicy());
	}

	} // namespace content