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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/targets_affinity.h"
#include <stddef.h>
#include <stdint.h>
#include <vector>
#include "components/zucchini/equivalence_map.h"
#include "components/zucchini/image_utils.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace zucchini {
TEST(TargetsAffinityTest, AffinityBetween) {
using AffinityVector = std::vector<std::vector<double>>;
// A common TargetsAffinity is used across independent tests. This is to
// reflect actual usage, in which common TargetsAffinity is used so that
// internal buffers get reused.
TargetsAffinity targets_affinity;
auto test_affinity = [&targets_affinity](
const EquivalenceMap& equivalence_map,
const std::deque<offset_t>& old_targets,
const std::deque<offset_t>& new_targets) {
targets_affinity.InferFromSimilarities(equivalence_map, old_targets,
new_targets);
AffinityVector affinities(old_targets.size());
for (key_t i = 0; i < old_targets.size(); ++i) {
for (key_t j = 0; j < new_targets.size(); ++j) {
affinities[i].push_back(targets_affinity.AffinityBetween(i, j));
}
}
return affinities;
};
EXPECT_EQ(AffinityVector({}), test_affinity(EquivalenceMap(), {}, {}));
EXPECT_EQ(AffinityVector({}),
test_affinity(EquivalenceMap({{{0, 0, 8}, 1.0}}), {}, {}));
EXPECT_EQ(AffinityVector({{0.0, 0.0}, {0.0, 0.0}}),
test_affinity(EquivalenceMap(), {0, 10}, {0, 5}));
EXPECT_EQ(AffinityVector({{1.0, -1.0}, {-1.0, 0.0}}),
test_affinity(EquivalenceMap({{{0, 0, 1}, 1.0}}), {0, 10}, {0, 5}));
EXPECT_EQ(AffinityVector({{1.0, -1.0}, {-1.0, 0.0}}),
test_affinity(EquivalenceMap({{{0, 0, 2}, 1.0}}), {1, 10}, {1, 5}));
EXPECT_EQ(AffinityVector({{0.0, 0.0}, {0.0, 0.0}}),
test_affinity(EquivalenceMap({{{0, 1, 2}, 1.0}}), {1, 10}, {1, 5}));
EXPECT_EQ(AffinityVector({{1.0, -1.0}, {-1.0, 0.0}}),
test_affinity(EquivalenceMap({{{0, 1, 2}, 1.0}}), {0, 10}, {1, 5}));
EXPECT_EQ(AffinityVector({{2.0, -2.0}, {-2.0, 0.0}}),
test_affinity(EquivalenceMap({{{0, 0, 1}, 2.0}}), {0, 10}, {0, 5}));
EXPECT_EQ(
AffinityVector({{1.0, -1.0}, {-1.0, 1.0}, {-1.0, -1.0}}),
test_affinity(EquivalenceMap({{{0, 0, 6}, 1.0}}), {0, 5, 10}, {0, 5}));
EXPECT_EQ(AffinityVector({{-2.0, 2.0}, {1.0, -2.0}, {-1.0, -2.0}}),
test_affinity(EquivalenceMap({{{5, 0, 2}, 1.0}, {{0, 5, 2}, 2.0}}),
{0, 5, 10}, {0, 5}));
EXPECT_EQ(AffinityVector({{-2.0, 2.0}, {0.0, -2.0}, {0.0, -2.0}}),
test_affinity(EquivalenceMap({{{0, 0, 2}, 1.0}, {{0, 5, 2}, 2.0}}),
{0, 5, 10}, {0, 5}));
}
TEST(TargetsAffinityTest, AssignLabels) {
// A common TargetsAffinity is used across independent tests. This is to
// reflect actual usage, in which common TargetsAffinity is used so that
// internal buffers get reused.
TargetsAffinity targets_affinity;
auto test_labels_assignment =
[&targets_affinity](const EquivalenceMap& equivalence_map,
const std::deque<offset_t>& old_targets,
const std::deque<offset_t>& new_targets,
double min_affinity,
const std::vector<uint32_t>& expected_old_labels,
const std::vector<uint32_t>& expected_new_labels) {
targets_affinity.InferFromSimilarities(equivalence_map, old_targets,
new_targets);
std::vector<uint32_t> old_labels;
std::vector<uint32_t> new_labels;
size_t bound = targets_affinity.AssignLabels(min_affinity, &old_labels,
&new_labels);
EXPECT_EQ(expected_old_labels, old_labels);
EXPECT_EQ(expected_new_labels, new_labels);
return bound;
};
EXPECT_EQ(1U, test_labels_assignment(EquivalenceMap(), {}, {}, 1.0, {}, {}));
EXPECT_EQ(1U, test_labels_assignment(EquivalenceMap({{{0, 0, 8}, 1.0}}), {},
{}, 1.0, {}, {}));
EXPECT_EQ(1U, test_labels_assignment(EquivalenceMap(), {0, 10}, {0, 5}, 1.0,
{0, 0}, {0, 0}));
EXPECT_EQ(2U, test_labels_assignment(EquivalenceMap({{{0, 0, 1}, 1.0}}),
{0, 10}, {0, 5}, 1.0, {1, 0}, {1, 0}));
EXPECT_EQ(1U, test_labels_assignment(EquivalenceMap({{{0, 0, 1}, 0.99}}),
{0, 10}, {0, 5}, 1.0, {0, 0}, {0, 0}));
EXPECT_EQ(1U, test_labels_assignment(EquivalenceMap({{{0, 0, 1}, 1.0}}),
{0, 10}, {0, 5}, 1.01, {0, 0}, {0, 0}));
EXPECT_EQ(1U, test_labels_assignment(EquivalenceMap({{{0, 0, 1}, 1.0}}),
{0, 10}, {0, 5}, 15.0, {0, 0}, {0, 0}));
EXPECT_EQ(2U, test_labels_assignment(EquivalenceMap({{{0, 0, 1}, 15.0}}),
{0, 10}, {0, 5}, 15.0, {1, 0}, {1, 0}));
EXPECT_EQ(2U, test_labels_assignment(EquivalenceMap({{{0, 1, 2}, 1.0}}),
{0, 10}, {1, 5}, 1.0, {1, 0}, {1, 0}));
EXPECT_EQ(
3U, test_labels_assignment(EquivalenceMap({{{0, 0, 6}, 1.0}}), {0, 5, 10},
{0, 5}, 1.0, {1, 2, 0}, {1, 2}));
EXPECT_EQ(3U, test_labels_assignment(
EquivalenceMap({{{5, 0, 2}, 1.0}, {{0, 5, 2}, 2.0}}),
{0, 5, 10}, {0, 5}, 1.0, {1, 2, 0}, {2, 1}));
EXPECT_EQ(2U, test_labels_assignment(
EquivalenceMap({{{0, 0, 2}, 1.0}, {{0, 5, 2}, 2.0}}),
{0, 5, 10}, {0, 5}, 1.0, {1, 0, 0}, {0, 1}));
}
} // namespace zucchini
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