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backoff_delay_provider_unittest.cc
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "sync/engine/backoff_delay_provider.h"
#include "base/memory/scoped_ptr.h"
#include "base/time.h"
#include "sync/internal_api/public/engine/polling_constants.h"
#include "sync/internal_api/public/sessions/model_neutral_state.h"
#include "sync/internal_api/public/util/syncer_error.h"
#include "testing/gtest/include/gtest/gtest.h"
using base::TimeDelta;
namespace syncer {
class BackoffDelayProviderTest : public testing::Test {};
TEST_F(BackoffDelayProviderTest, GetRecommendedDelay) {
scoped_ptr<BackoffDelayProvider> delay(BackoffDelayProvider::FromDefaults());
EXPECT_EQ(TimeDelta::FromSeconds(1),
delay->GetDelay(TimeDelta::FromSeconds(0)));
EXPECT_LE(TimeDelta::FromSeconds(1),
delay->GetDelay(TimeDelta::FromSeconds(1)));
EXPECT_LE(TimeDelta::FromSeconds(50),
delay->GetDelay(TimeDelta::FromSeconds(50)));
EXPECT_LE(TimeDelta::FromSeconds(10),
delay->GetDelay(TimeDelta::FromSeconds(10)));
EXPECT_EQ(TimeDelta::FromSeconds(kMaxBackoffSeconds),
delay->GetDelay(TimeDelta::FromSeconds(kMaxBackoffSeconds)));
EXPECT_EQ(TimeDelta::FromSeconds(kMaxBackoffSeconds),
delay->GetDelay(TimeDelta::FromSeconds(kMaxBackoffSeconds + 1)));
}
TEST_F(BackoffDelayProviderTest, GetInitialDelay) {
scoped_ptr<BackoffDelayProvider> delay(BackoffDelayProvider::FromDefaults());
sessions::ModelNeutralState state;
state.last_get_key_result = SYNC_SERVER_ERROR;
EXPECT_EQ(kInitialBackoffRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.last_get_key_result = UNSET;
state.last_download_updates_result = SERVER_RETURN_MIGRATION_DONE;
EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.last_download_updates_result = NETWORK_CONNECTION_UNAVAILABLE;
EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.last_download_updates_result = SERVER_RETURN_TRANSIENT_ERROR;
EXPECT_EQ(kInitialBackoffRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.last_download_updates_result = SERVER_RESPONSE_VALIDATION_FAILED;
EXPECT_EQ(kInitialBackoffRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.last_download_updates_result = SYNCER_OK;
// Note that updating credentials triggers a canary job, trumping
// the initial delay, but in theory we still expect this function to treat
// it like any other error in the system (except migration).
state.commit_result = SERVER_RETURN_INVALID_CREDENTIAL;
EXPECT_EQ(kInitialBackoffRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.commit_result = SERVER_RETURN_MIGRATION_DONE;
EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.commit_result = NETWORK_CONNECTION_UNAVAILABLE;
EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.commit_result = SERVER_RETURN_CONFLICT;
EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
}
TEST_F(BackoffDelayProviderTest, GetInitialDelayWithOverride) {
scoped_ptr<BackoffDelayProvider> delay(
BackoffDelayProvider::WithShortInitialRetryOverride());
sessions::ModelNeutralState state;
state.last_get_key_result = SYNC_SERVER_ERROR;
EXPECT_EQ(kInitialBackoffShortRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.last_get_key_result = UNSET;
state.last_download_updates_result = SERVER_RETURN_MIGRATION_DONE;
EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.last_download_updates_result = SERVER_RETURN_TRANSIENT_ERROR;
EXPECT_EQ(kInitialBackoffShortRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.last_download_updates_result = SERVER_RESPONSE_VALIDATION_FAILED;
EXPECT_EQ(kInitialBackoffShortRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.last_download_updates_result = SYNCER_OK;
// Note that updating credentials triggers a canary job, trumping
// the initial delay, but in theory we still expect this function to treat
// it like any other error in the system (except migration).
state.commit_result = SERVER_RETURN_INVALID_CREDENTIAL;
EXPECT_EQ(kInitialBackoffShortRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.commit_result = SERVER_RETURN_MIGRATION_DONE;
EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
state.commit_result = SERVER_RETURN_CONFLICT;
EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
delay->GetInitialDelay(state).InSeconds());
}
} // namespace syncer