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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 "components/plus_addresses/plus_address_jit_allocator.h"
#include <utility>
#include "base/test/gmock_callback_support.h"
#include "base/test/mock_callback.h"
#include "base/test/task_environment.h"
#include "base/types/expected.h"
#include "components/plus_addresses/mock_plus_address_http_client.h"
#include "components/plus_addresses/plus_address_allocator.h"
#include "components/plus_addresses/plus_address_test_utils.h"
#include "components/plus_addresses/plus_address_types.h"
#include "net/http/http_status_code.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
#include "url/origin.h"
namespace plus_addresses {
namespace {
using ::testing::_;
using ::testing::InSequence;
using ::testing::Message;
using ::testing::NiceMock;
// Shorthands for common errors that the allocator can throw.
const PlusProfileOrError kMaxRefreshesReachedError = base::unexpected(
PlusAddressRequestError(PlusAddressRequestErrorType::kMaxRefreshesReached));
url::Origin GetSampleOrigin1() {
return url::Origin::Create(GURL("https://example1.org"));
}
url::Origin GetSampleOrigin2() {
return url::Origin::Create(GURL("https://another-example.co.uk"));
}
class PlusAddressJitAllocatorRefreshTest : public ::testing::Test {
public:
PlusAddressJitAllocatorRefreshTest() : allocator_(&http_client_) {}
protected:
base::test::TaskEnvironment& task_environment() { return task_environment_; }
PlusAddressJitAllocator& allocator() { return allocator_; }
MockPlusAddressHttpClient& http_client() { return http_client_; }
private:
base::test::TaskEnvironment task_environment_{
base::test::TaskEnvironment::TimeSource::MOCK_TIME};
NiceMock<MockPlusAddressHttpClient> http_client_;
PlusAddressJitAllocator allocator_;
};
// Tests that the allocator translates the `AllocationMode` properly into the
// `refresh` parameter of the client.
TEST_F(PlusAddressJitAllocatorRefreshTest, RefreshParameterPassedOn) {
EXPECT_CALL(http_client(),
ReservePlusAddress(GetSampleOrigin1(), /*refresh=*/false, _));
EXPECT_CALL(http_client(),
ReservePlusAddress(GetSampleOrigin1(), /*refresh=*/true, _));
EXPECT_CALL(http_client(),
ReservePlusAddress(GetSampleOrigin2(), /*refresh=*/false, _));
allocator().AllocatePlusAddress(GetSampleOrigin1(),
PlusAddressAllocator::AllocationMode::kAny,
base::DoNothing());
allocator().AllocatePlusAddress(
GetSampleOrigin1(), PlusAddressAllocator::AllocationMode::kNewPlusAddress,
base::DoNothing());
allocator().AllocatePlusAddress(GetSampleOrigin2(),
PlusAddressAllocator::AllocationMode::kAny,
base::DoNothing());
}
TEST_F(PlusAddressJitAllocatorRefreshTest, AllocationIsNeverSynchronous) {
EXPECT_EQ(allocator().AllocatePlusAddressSynchronously(
GetSampleOrigin1(), PlusAddressAllocator::AllocationMode::kAny),
std::nullopt);
}
// Tests that refreshing is only allowed `kMaxPlusAddressRefreshesPerOrigin`
// times per origin.
TEST_F(PlusAddressJitAllocatorRefreshTest, RefreshLimit) {
// Note: In practice, this would be a different profile with each call - but
// the test does not need to reproduce this level of fidelity.
const PlusProfile kSampleProfile = test::CreatePlusProfile();
ON_CALL(http_client(), ReservePlusAddress(_, /*refresh=*/true, _))
.WillByDefault([&kSampleProfile](const url::Origin& origin, bool refresh,
PlusAddressRequestCallback cb) {
std::move(cb).Run(kSampleProfile);
});
for (int i = 0; i < PlusAddressAllocator::kMaxPlusAddressRefreshesPerOrigin;
++i) {
SCOPED_TRACE(Message() << "Iteration #" << (i + 1));
EXPECT_TRUE(allocator().IsRefreshingSupported(GetSampleOrigin1()));
base::MockCallback<PlusAddressRequestCallback> callback;
EXPECT_CALL(callback, Run(PlusProfileOrError(kSampleProfile)));
allocator().AllocatePlusAddress(
GetSampleOrigin1(),
PlusAddressAllocator::AllocationMode::kNewPlusAddress, callback.Get());
}
EXPECT_FALSE(allocator().IsRefreshingSupported(GetSampleOrigin1()));
{
base::MockCallback<PlusAddressRequestCallback> callback;
EXPECT_CALL(callback, Run(kMaxRefreshesReachedError));
allocator().AllocatePlusAddress(
GetSampleOrigin1(),
PlusAddressAllocator::AllocationMode::kNewPlusAddress, callback.Get());
}
// However, refreshing addresses on a different origin still works.
EXPECT_TRUE(allocator().IsRefreshingSupported(GetSampleOrigin2()));
{
base::MockCallback<PlusAddressRequestCallback> callback;
EXPECT_CALL(callback, Run(PlusProfileOrError(kSampleProfile)));
allocator().AllocatePlusAddress(
GetSampleOrigin2(),
PlusAddressAllocator::AllocationMode::kNewPlusAddress, callback.Get());
}
}
// Tests that the allocator handles the server response for "refresh quota is
// exhausted" properly by disabling refresh for a cool down period.
TEST_F(PlusAddressJitAllocatorRefreshTest,
HandleServerResponseForQuotaExhausted) {
base::MockCallback<PlusAddressRequestCallback> callback;
{
InSequence s;
PlusProfileOrError response = base::unexpected(
PlusAddressRequestError::AsNetworkError(net::HTTP_TOO_MANY_REQUESTS));
EXPECT_CALL(http_client(),
ReservePlusAddress(GetSampleOrigin1(), /*refresh=*/true, _))
.WillOnce(base::test::RunOnceCallback<2>(response));
EXPECT_CALL(callback, Run(response));
}
EXPECT_TRUE(allocator().IsRefreshingSupported(GetSampleOrigin1()));
allocator().AllocatePlusAddress(
GetSampleOrigin1(), PlusAddressAllocator::AllocationMode::kNewPlusAddress,
callback.Get());
// After receiving the error, refreshing is no longer supported - regardless
// of domain.
EXPECT_FALSE(allocator().IsRefreshingSupported(GetSampleOrigin1()));
EXPECT_FALSE(allocator().IsRefreshingSupported(GetSampleOrigin2()));
// This effect persists...
task_environment().FastForwardBy(base::Hours(6));
EXPECT_FALSE(allocator().IsRefreshingSupported(GetSampleOrigin1()));
EXPECT_FALSE(allocator().IsRefreshingSupported(GetSampleOrigin2()));
// ... for 24 hours.
task_environment().FastForwardBy(base::Hours(19));
EXPECT_TRUE(allocator().IsRefreshingSupported(GetSampleOrigin1()));
EXPECT_TRUE(allocator().IsRefreshingSupported(GetSampleOrigin2()));
}
} // namespace
} // namespace plus_addresses
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