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// Copyright (c) 2013 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 "ui/gfx/sequential_id_generator.h"
#include <stdint.h>
#include "base/logging.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ui {
typedef testing::Test SequentialIDGeneratorTest;
TEST(SequentialIDGeneratorTest, AddRemove) {
const uint32_t kMinID = 2;
SequentialIDGenerator generator(kMinID);
EXPECT_EQ(2U, generator.GetGeneratedID(45));
EXPECT_EQ(3U, generator.GetGeneratedID(23));
EXPECT_EQ(2U, generator.GetGeneratedID(45));
EXPECT_TRUE(generator.HasGeneratedIDFor(45));
EXPECT_TRUE(generator.HasGeneratedIDFor(23));
generator.ReleaseGeneratedID(2);
EXPECT_FALSE(generator.HasGeneratedIDFor(45));
EXPECT_TRUE(generator.HasGeneratedIDFor(23));
EXPECT_EQ(3U, generator.GetGeneratedID(23));
EXPECT_FALSE(generator.HasGeneratedIDFor(1));
EXPECT_EQ(2U, generator.GetGeneratedID(1));
EXPECT_TRUE(generator.HasGeneratedIDFor(1));
generator.ReleaseGeneratedID(3);
EXPECT_EQ(3U, generator.GetGeneratedID(45));
EXPECT_TRUE(generator.HasGeneratedIDFor(45));
generator.ReleaseNumber(45);
EXPECT_FALSE(generator.HasGeneratedIDFor(45));
}
TEST(SequentialIDGeneratorTest, RemoveMultipleNumbers) {
const uint32_t kMinID = 4;
SequentialIDGenerator generator(kMinID);
EXPECT_EQ(4U, generator.GetGeneratedID(45));
EXPECT_EQ(5U, generator.GetGeneratedID(55));
EXPECT_EQ(6U, generator.GetGeneratedID(15));
generator.ReleaseNumber(45);
EXPECT_FALSE(generator.HasGeneratedIDFor(45));
generator.ReleaseNumber(15);
EXPECT_FALSE(generator.HasGeneratedIDFor(15));
EXPECT_EQ(5U, generator.GetGeneratedID(55));
EXPECT_EQ(4U, generator.GetGeneratedID(12));
generator.ReleaseNumber(12);
generator.ReleaseNumber(55);
EXPECT_EQ(4U, generator.GetGeneratedID(0));
}
} // namespace ui
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