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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include <string>
#include <vector>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/strings/utf_string_conversions.h"
#include "base/synchronization/lock.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/shell/browser/shell.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "net/test/embedded_test_server/http_request.h"
#include "net/test/embedded_test_server/http_response.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
namespace content {
namespace {
using net::test_server::HttpRequest;
using net::test_server::HttpResponse;
const char kReloadTestPath[] = "/loader/reload_test.html";
// The test page should request resources as the content structure is described
// below. Reload and the same page navigation will affect only the top frame
// resource, reload_test.html. But bypassing reload will affect all resources.
// +- reload_test.html
// +- empty16x16.png
// +- simple_frame.html
// +- empty16x16.png
const char kNoCacheControl[] = "";
const char kMaxAgeCacheControl[] = "max-age=0";
const char kNoCacheCacheControl[] = "no-cache";
struct RequestLog {
std::string relative_url;
std::string cache_control;
};
struct ExpectedCacheControl {
const char* top_main;
const char* others;
};
const ExpectedCacheControl kExpectedCacheControlForNormalLoad = {
kNoCacheControl, kNoCacheControl};
const ExpectedCacheControl kExpectedCacheControlForReload = {
kMaxAgeCacheControl, kNoCacheControl};
const ExpectedCacheControl kExpectedCacheControlForBypassingReload = {
kNoCacheCacheControl, kNoCacheCacheControl};
// Tests end to end behaviors between Blink and content around reload variants.
class ReloadCacheControlBrowserTest : public ContentBrowserTest {
public:
ReloadCacheControlBrowserTest(const ReloadCacheControlBrowserTest&) = delete;
ReloadCacheControlBrowserTest& operator=(
const ReloadCacheControlBrowserTest&) = delete;
protected:
ReloadCacheControlBrowserTest() {}
~ReloadCacheControlBrowserTest() override = default;
void SetUpOnMainThread() override {
SetUpTestServerOnMainThread();
}
void SetUpTestServerOnMainThread() {
// ContentBrowserTest creates embedded_test_server instance with
// a registered HandleFileRequest for "content/test/data".
// Because the handler is registered as the first handler, MonitorHandler
// is needed to capture all requests.
embedded_test_server()->RegisterRequestMonitor(base::BindRepeating(
&ReloadCacheControlBrowserTest::MonitorRequestHandler,
base::Unretained(this)));
ASSERT_TRUE(embedded_test_server()->Start());
}
protected:
void CheckCacheControl(const ExpectedCacheControl& expectation) {
base::AutoLock lock(request_log_lock_);
EXPECT_EQ(4u, request_log_.size());
for (const auto& log : request_log_) {
if (log.relative_url == kReloadTestPath) {
EXPECT_EQ(expectation.top_main, log.cache_control);
} else {
EXPECT_EQ(expectation.others, log.cache_control);
}
}
request_log_.clear();
}
std::vector<RequestLog> request_log_;
base::Lock request_log_lock_;
private:
void MonitorRequestHandler(const HttpRequest& request) {
RequestLog log;
log.relative_url = request.relative_url;
auto cache_control = request.headers.find("Cache-Control");
log.cache_control = cache_control == request.headers.end()
? kNoCacheControl
: cache_control->second;
base::AutoLock lock(request_log_lock_);
request_log_.push_back(log);
}
};
// Test if reload issues requests with proper cache control flags.
IN_PROC_BROWSER_TEST_F(ReloadCacheControlBrowserTest, NormalReload) {
GURL url(embedded_test_server()->GetURL(kReloadTestPath));
EXPECT_TRUE(NavigateToURL(shell(), url));
CheckCacheControl(kExpectedCacheControlForNormalLoad);
ReloadBlockUntilNavigationsComplete(shell(), 1);
CheckCacheControl(kExpectedCacheControlForReload);
shell()->ShowDevTools();
ReloadBlockUntilNavigationsComplete(shell(), 1);
CheckCacheControl(kExpectedCacheControlForReload);
shell()->CloseDevTools();
ReloadBlockUntilNavigationsComplete(shell(), 1);
CheckCacheControl(kExpectedCacheControlForReload);
}
// Test if bypassing reload issues requests with proper cache control flags.
IN_PROC_BROWSER_TEST_F(ReloadCacheControlBrowserTest, BypassingReload) {
GURL url(embedded_test_server()->GetURL(kReloadTestPath));
NavigateToURLBlockUntilNavigationsComplete(shell(), url, 1);
CheckCacheControl(kExpectedCacheControlForNormalLoad);
ReloadBypassingCacheBlockUntilNavigationsComplete(shell(), 1);
CheckCacheControl(kExpectedCacheControlForBypassingReload);
shell()->ShowDevTools();
ReloadBypassingCacheBlockUntilNavigationsComplete(shell(), 1);
CheckCacheControl(kExpectedCacheControlForBypassingReload);
shell()->CloseDevTools();
ReloadBypassingCacheBlockUntilNavigationsComplete(shell(), 1);
CheckCacheControl(kExpectedCacheControlForBypassingReload);
}
// Test if the same page navigation issues requests with proper cache control
// flags.
IN_PROC_BROWSER_TEST_F(ReloadCacheControlBrowserTest, NavigateToSame) {
GURL url(embedded_test_server()->GetURL(kReloadTestPath));
// The first navigation is just a normal load.
EXPECT_TRUE(NavigateToURL(shell(), url));
CheckCacheControl(kExpectedCacheControlForNormalLoad);
// The second navigation is the same page navigation from address bar. This
// should be handled as a replacement navigation, with normal load cache
// protocols. See https://github.com/whatwg/html/issues/10597 for spec
// discussion.
EXPECT_TRUE(NavigateToURL(shell(), url));
CheckCacheControl(kExpectedCacheControlForNormalLoad);
shell()->ShowDevTools();
EXPECT_TRUE(NavigateToURL(shell(), url));
CheckCacheControl(kExpectedCacheControlForNormalLoad);
shell()->CloseDevTools();
EXPECT_TRUE(NavigateToURL(shell(), url));
CheckCacheControl(kExpectedCacheControlForNormalLoad);
}
// Reloading with ReloadType::NORMAL should respect service workers.
IN_PROC_BROWSER_TEST_F(ReloadCacheControlBrowserTest,
NormalReload_ControlledByServiceWorker) {
// Prepare for a service worker.
EXPECT_TRUE(NavigateToURL(shell(),
embedded_test_server()->GetURL(
"/service_worker/create_service_worker.html")));
EXPECT_EQ("DONE", EvalJs(shell(), "register('fetch_event_blob.js');"));
// Open a page served by the service worker.
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL("/service_worker/empty.html")));
EXPECT_EQ(u"Title", shell()->web_contents()->GetTitle());
// Reload from the browser. The page is still controlled by the service
// worker.
ReloadBlockUntilNavigationsComplete(shell(), 1);
EXPECT_TRUE(WaitForLoadStop(shell()->web_contents()));
EXPECT_EQ(u"Title", shell()->web_contents()->GetTitle());
}
// Reloading with ReloadType::BYPASSING_CACHE should bypass service workers.
IN_PROC_BROWSER_TEST_F(ReloadCacheControlBrowserTest,
BypassingReload_ControlledByServiceWorker) {
// Prepare for a service worker.
EXPECT_TRUE(NavigateToURL(shell(),
embedded_test_server()->GetURL(
"/service_worker/create_service_worker.html")));
EXPECT_EQ("DONE", EvalJs(shell(), "register('fetch_event_blob.js');"));
// Open a page served by the service worker.
EXPECT_TRUE(NavigateToURL(
shell(), embedded_test_server()->GetURL("/service_worker/empty.html")));
EXPECT_EQ(u"Title", shell()->web_contents()->GetTitle());
// Reload from the browser with pressing shift key. It bypasses the service
// worker.
ReloadBypassingCacheBlockUntilNavigationsComplete(shell(), 1);
EXPECT_EQ(u"ServiceWorker test - empty page",
shell()->web_contents()->GetTitle());
}
} // namespace
} // namespace content
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