chromium/chrome/browser/extensions/cache_wasm_extension_browsertest.cc

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include <string_view>

#include "base/base_paths.h"
#include "base/files/file_util.h"
#include "base/path_service.h"
#include "base/threading/platform_thread.h"
#include "chrome/browser/extensions/chrome_test_extension_loader.h"
#include "chrome/browser/extensions/extension_browsertest.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_commands.h"
#include "components/metrics/content/subprocess_metrics_provider.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "third_party/blink/public/common/switches.h"

class WasmExtensionCachingBrowserTest
    : public extensions::ExtensionBrowserTest { … };

// The `large.wasm` file is very large: 2.5MB. To avoid increasing the git
// repository, we prefer borrowing it from web_tests.
base::FilePath LargeWasmPath() { … }

// Test that we cache streaming compiled/instantiated Wasm modules in
// extensions. We have to wait until caching of the module happens and the
// histogram is populated.
IN_PROC_BROWSER_TEST_F(WasmExtensionCachingBrowserTest, CacheWasmExtensions) { … }