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/*
* Copyright 2018 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "Firestore/core/src/firebase/firestore/core/target_id_generator.h"
#include "gtest/gtest.h"
namespace firebase {
namespace firestore {
namespace core {
TEST(TargetIdGenerator, Constructor) {
TargetIdGenerator local_store_generator =
TargetIdGenerator::LocalStoreTargetIdGenerator(0);
TargetIdGenerator sync_engine_generator =
TargetIdGenerator::SyncEngineTargetIdGenerator(0);
EXPECT_EQ(TargetIdGeneratorId::LocalStore,
local_store_generator.generator_id());
EXPECT_EQ(2, local_store_generator.NextId());
EXPECT_EQ(TargetIdGeneratorId::SyncEngine,
sync_engine_generator.generator_id());
EXPECT_EQ(1, sync_engine_generator.NextId());
}
TEST(TargetIdGenerator, SkipPast) {
EXPECT_EQ(1, TargetIdGenerator::SyncEngineTargetIdGenerator(-1).NextId());
EXPECT_EQ(3, TargetIdGenerator::SyncEngineTargetIdGenerator(2).NextId());
EXPECT_EQ(5, TargetIdGenerator::SyncEngineTargetIdGenerator(4).NextId());
for (int i = 4; i < 12; ++i) {
TargetIdGenerator a = TargetIdGenerator::LocalStoreTargetIdGenerator(i);
TargetIdGenerator b = TargetIdGenerator::SyncEngineTargetIdGenerator(i);
EXPECT_EQ((i + 2) & ~1, a.NextId());
EXPECT_EQ((i + 1) | 1, b.NextId());
}
EXPECT_EQ(13, TargetIdGenerator::SyncEngineTargetIdGenerator(12).NextId());
EXPECT_EQ(24, TargetIdGenerator::LocalStoreTargetIdGenerator(22).NextId());
}
TEST(TargetIdGenerator, Increment) {
TargetIdGenerator a = TargetIdGenerator::LocalStoreTargetIdGenerator(0);
EXPECT_EQ(2, a.NextId());
EXPECT_EQ(4, a.NextId());
EXPECT_EQ(6, a.NextId());
TargetIdGenerator b = TargetIdGenerator::LocalStoreTargetIdGenerator(46);
EXPECT_EQ(48, b.NextId());
EXPECT_EQ(50, b.NextId());
EXPECT_EQ(52, b.NextId());
EXPECT_EQ(54, b.NextId());
TargetIdGenerator c = TargetIdGenerator::SyncEngineTargetIdGenerator(0);
EXPECT_EQ(1, c.NextId());
EXPECT_EQ(3, c.NextId());
EXPECT_EQ(5, c.NextId());
TargetIdGenerator d = TargetIdGenerator::SyncEngineTargetIdGenerator(46);
EXPECT_EQ(47, d.NextId());
EXPECT_EQ(49, d.NextId());
EXPECT_EQ(51, d.NextId());
EXPECT_EQ(53, d.NextId());
}
} // namespace core
} // namespace firestore
} // namespace firebase
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