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- // Copyright 2017 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 "components/zucchini/target_pool.h"
- #include <cmath>
- #include <deque>
- #include <string>
- #include <utility>
- #include "components/zucchini/image_utils.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace zucchini {
- namespace {
- using OffsetDeque = std::deque<offset_t>;
- } // namespace
- TEST(TargetPoolTest, InsertTargetsFromReferences) {
- auto test_insert = [](std::vector<Reference>&& references) -> OffsetDeque {
- TargetPool target_pool;
- target_pool.InsertTargets(references);
- // Return copy since |target_pool| goes out of scope.
- return target_pool.targets();
- };
- EXPECT_EQ(OffsetDeque(), test_insert({}));
- EXPECT_EQ(OffsetDeque({0, 1}), test_insert({{0, 0}, {10, 1}}));
- EXPECT_EQ(OffsetDeque({0, 1}), test_insert({{0, 1}, {10, 0}}));
- EXPECT_EQ(OffsetDeque({0, 1, 2}), test_insert({{0, 1}, {10, 0}, {20, 2}}));
- EXPECT_EQ(OffsetDeque({0}), test_insert({{0, 0}, {10, 0}}));
- EXPECT_EQ(OffsetDeque({0, 1}), test_insert({{0, 0}, {10, 0}, {20, 1}}));
- }
- TEST(TargetPoolTest, KeyOffset) {
- auto test_key_offset = [](const std::string& nearest_offsets_key,
- OffsetDeque&& targets) {
- TargetPool target_pool(std::move(targets));
- for (offset_t offset : target_pool.targets()) {
- offset_t key = target_pool.KeyForOffset(offset);
- EXPECT_LT(key, target_pool.size());
- EXPECT_EQ(offset, target_pool.OffsetForKey(key));
- }
- for (offset_t offset = 0; offset < nearest_offsets_key.size(); ++offset) {
- key_t key = target_pool.KeyForNearestOffset(offset);
- EXPECT_EQ(key, static_cast<key_t>(nearest_offsets_key[offset] - '0'));
- }
- };
- test_key_offset("0000000000000000", {});
- test_key_offset("0000000000000000", {0});
- test_key_offset("0000000000000000", {1});
- test_key_offset("0111111111111111", {0, 1});
- test_key_offset("0011111111111111", {0, 2});
- test_key_offset("0011111111111111", {1, 2});
- test_key_offset("0001111111111111", {1, 3});
- test_key_offset("0001112223334444", {1, 3, 7, 9, 13});
- test_key_offset("0000011112223333", {1, 7, 9, 13});
- }
- } // namespace zucchini
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