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// 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.
#include "chrome/common/win/delay_load_notify_hook.h"
#include <string_view>
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/abseil-cpp/absl/cleanup/cleanup.h"
namespace {
constexpr char kTestDll[] = "test.dll";
constexpr char kDummyFunction[] = "test.dll";
void WINAPI DummyFunction() {}
FARPROC TestDelayLoadCallbackFunction(unsigned delay_load_event,
DelayLoadInfo* delay_load_info) {
if (delay_load_event == dliNotePreGetProcAddress &&
std::string_view(delay_load_info->szDll) == kTestDll &&
std::string_view(delay_load_info->dlp.szProcName) == kDummyFunction) {
return reinterpret_cast<FARPROC>(DummyFunction);
}
return nullptr;
}
} // namespace
// This test verifies that delay load hooks are correctly in place for the
// current module, which is unit_tests.exe in the case of this test.
TEST(ChromeDelayLoadNotifyHookTest, HooksAreSetAtLinkTime) {
ASSERT_NE(__pfnDliNotifyHook2, nullptr);
}
// This test verifies a typical usage of SetDelayLoadHookCallback
TEST(ChromeDelayLoadNotifyHookTest, OverrideDliNotifyHook) {
DelayLoadInfo dli = {.szDll = kTestDll};
dli.dlp.szProcName = kDummyFunction;
absl::Cleanup reset_callback = [] {
chrome::SetDelayLoadHookCallback(nullptr);
};
chrome::SetDelayLoadHookCallback(&TestDelayLoadCallbackFunction);
EXPECT_EQ(__pfnDliNotifyHook2(dliNotePreGetProcAddress, &dli),
reinterpret_cast<FARPROC>(DummyFunction));
}
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