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848 lines (727 loc) · 23.8 KB
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// Copyright 2018 Google LLC
//
// 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 "cc/symmetries.h"
#include <array>
#include <sstream>
#include "absl/strings/str_join.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
using ::testing::ElementsAreArray;
namespace minigo {
namespace symmetry {
namespace {
TEST(SymmetryTest, TestRot90_1) {
// clang-format off
const std::array<float, 16> original = {{
1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16,
}};
std::array<float, 16> expected = {{
4, 8, 12, 16,
3, 7, 11, 15,
2, 6, 10, 14,
1, 5, 9, 13,
}};
// clang-format on
std::array<float, 16> actual;
Rot90Interleaved<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
Rot90Planar<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestRot180_1) {
// clang-format off
std::array<float, 16> original = {{
1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16,
}};
std::array<float, 16> expected = {{
16, 15, 14, 13,
12, 11, 10, 9,
8, 7, 6, 5,
4, 3, 2, 1,
}};
// clang-format on
std::array<float, 16> actual;
Rot180Interleaved<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
Rot180Planar<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 16> tmp;
Rot90Interleaved<4, 1>(original.data(), tmp.data());
Rot90Interleaved<4, 1>(tmp.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestRot270_1) {
// clang-format off
std::array<float, 16> original = {{
1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16,
}};
std::array<float, 16> expected = {{
13, 9, 5, 1,
14, 10, 6, 2,
15, 11, 7, 3,
16, 12, 8, 4,
}};
// clang-format on
std::array<float, 16> actual;
Rot270Interleaved<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
Rot270Planar<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 16> tmp1, tmp2;
Rot90Interleaved<4, 1>(original.data(), tmp1.data());
Rot90Interleaved<4, 1>(tmp1.data(), tmp2.data());
Rot90Interleaved<4, 1>(tmp2.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestFlip_1) {
// clang-format off
std::array<float, 16> original = {{
1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16,
}};
std::array<float, 16> expected = {{
1, 5, 9, 13,
2, 6, 10, 14,
3, 7, 11, 15,
4, 8, 12, 16,
}};
// clang-format on
std::array<float, 16> actual;
FlipInterleaved<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
FlipPlanar<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestFlipRot90_1) {
// clang-format off
std::array<float, 16> original = {{
1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16,
}};
std::array<float, 16> expected = {{
13, 14, 15, 16,
9, 10, 11, 12,
5, 6, 7, 8,
1, 2, 3, 4,
}};
// clang-format on
std::array<float, 16> actual;
FlipRot90Interleaved<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
FlipRot90Planar<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 16> tmp;
FlipInterleaved<4, 1>(original.data(), tmp.data());
Rot90Interleaved<4, 1>(tmp.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestFlipRot180_1) {
// clang-format off
std::array<float, 16> original = {{
1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16,
}};
std::array<float, 16> expected = {{
16, 12, 8, 4,
15, 11, 7, 3,
14, 10, 6, 2,
13, 9, 5, 1
}};
// clang-format on
std::array<float, 16> actual;
FlipRot180Interleaved<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
FlipRot180Planar<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 16> tmp;
FlipInterleaved<4, 1>(original.data(), tmp.data());
Rot180Interleaved<4, 1>(tmp.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestFlipRot270_1) {
// clang-format off
std::array<float, 16> original = {{
1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16,
}};
std::array<float, 16> expected = {{
4, 3, 2, 1,
8, 7, 6, 5,
12, 11, 10, 9,
16, 15, 14, 13,
}};
// clang-format on
std::array<float, 16> actual;
FlipRot270Interleaved<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
FlipRot270Planar<4, 1>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 16> tmp;
FlipInterleaved<4, 1>(original.data(), tmp.data());
Rot270Interleaved<4, 1>(tmp.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestRot90Interleaved_3) {
// clang-format off
const std::array<float, 48> original = {{
11, 12, 13, 21, 22, 23, 31, 32, 33, 41, 42, 43,
51, 52, 53, 61, 62, 63, 71, 72, 73, 81, 82, 83,
91, 92, 93, 101, 102, 103, 111, 112, 113, 121, 122, 123,
131, 132, 133, 141, 142, 143, 151, 152, 153, 161, 162, 163,
}};
std::array<float, 48> expected = {{
41, 42, 43, 81, 82, 83, 121, 122, 123, 161, 162, 163,
31, 32, 33, 71, 72, 73, 111, 112, 113, 151, 152, 153,
21, 22, 23, 61, 62, 63, 101, 102, 103, 141, 142, 143,
11, 12, 13, 51, 52, 53, 91, 92, 93, 131, 132, 133,
}};
// clang-format on
std::array<float, 48> actual;
Rot90Interleaved<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestRot180Interleaved_3) {
// clang-format off
std::array<float, 48> original = {{
11, 12, 13, 21, 22, 23, 31, 32, 33, 41, 42, 43,
51, 52, 53, 61, 62, 63, 71, 72, 73, 81, 82, 83,
91, 92, 93, 101, 102, 103, 111, 112, 113, 121, 122, 123,
131, 132, 133, 141, 142, 143, 151, 152, 153, 161, 162, 163,
}};
std::array<float, 48> expected = {{
161, 162, 163, 151, 152, 153, 141, 142, 143, 131, 132, 133,
121, 122, 123, 111, 112, 113, 101, 102, 103, 91, 92, 93,
81, 82, 83, 71, 72, 73, 61, 62, 63, 51, 52, 53,
41, 42, 43, 31, 32, 33, 21, 22, 23, 11, 12, 13,
}};
// clang-format on
std::array<float, 48> actual;
Rot180Interleaved<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 48> tmp;
Rot90Interleaved<4, 3>(original.data(), tmp.data());
Rot90Interleaved<4, 3>(tmp.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestRot270Interleaved_3) {
// clang-format off
std::array<float, 48> original = {{
11, 12, 13, 21, 22, 23, 31, 32, 33, 41, 42, 43,
51, 52, 53, 61, 62, 63, 71, 72, 73, 81, 82, 83,
91, 92, 93, 101, 102, 103, 111, 112, 113, 121, 122, 123,
131, 132, 133, 141, 142, 143, 151, 152, 153, 161, 162, 163,
}};
std::array<float, 48> expected = {{
131, 132, 133, 91, 92, 93, 51, 52, 53, 11, 12, 13,
141, 142, 143, 101, 102, 103, 61, 62, 63, 21, 22, 23,
151, 152, 153, 111, 112, 113, 71, 72, 73, 31, 32, 33,
161, 162, 163, 121, 122, 123, 81, 82, 83, 41, 42, 43,
}};
// clang-format on
std::array<float, 48> actual;
Rot270Interleaved<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 48> tmp1, tmp2;
Rot90Interleaved<4, 3>(original.data(), tmp1.data());
Rot90Interleaved<4, 3>(tmp1.data(), tmp2.data());
Rot90Interleaved<4, 3>(tmp2.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestFlipInterleaved_3) {
// clang-format off
std::array<float, 48> original = {{
11, 12, 13, 21, 22, 23, 31, 32, 33, 41, 42, 43,
51, 52, 53, 61, 62, 63, 71, 72, 73, 81, 82, 83,
91, 92, 93, 101, 102, 103, 111, 112, 113, 121, 122, 123,
131, 132, 133, 141, 142, 143, 151, 152, 153, 161, 162, 163,
}};
std::array<float, 48> expected = {{
11, 12, 13, 51, 52, 53, 91, 92, 93, 131, 132, 133,
21, 22, 23, 61, 62, 63, 101, 102, 103, 141, 142, 143,
31, 32, 33, 71, 72, 73, 111, 112, 113, 151, 152, 153,
41, 42, 43, 81, 82, 83, 121, 122, 123, 161, 162, 163,
}};
// clang-format on
std::array<float, 48> actual;
FlipInterleaved<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestFlipRot90Interleaved_3) {
// clang-format off
std::array<float, 48> original = {{
11, 12, 13, 21, 22, 23, 31, 32, 33, 41, 42, 43,
51, 52, 53, 61, 62, 63, 71, 72, 73, 81, 82, 83,
91, 92, 93, 101, 102, 103, 111, 112, 113, 121, 122, 123,
131, 132, 133, 141, 142, 143, 151, 152, 153, 161, 162, 163,
}};
std::array<float, 48> expected = {{
131, 132, 133, 141, 142, 143, 151, 152, 153, 161, 162, 163,
91, 92, 93, 101, 102, 103, 111, 112, 113, 121, 122, 123,
51, 52, 53, 61, 62, 63, 71, 72, 73, 81, 82, 83,
11, 12, 13, 21, 22, 23, 31, 32, 33, 41, 42, 43,
}};
// clang-format on
std::array<float, 48> actual;
FlipRot90Interleaved<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 48> tmp;
FlipInterleaved<4, 3>(original.data(), tmp.data());
Rot90Interleaved<4, 3>(tmp.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestFlipRot180Interleaved_3) {
// clang-format off
std::array<float, 48> original = {{
11, 12, 13, 21, 22, 23, 31, 32, 33, 41, 42, 43,
51, 52, 53, 61, 62, 63, 71, 72, 73, 81, 82, 83,
91, 92, 93, 101, 102, 103, 111, 112, 113, 121, 122, 123,
131, 132, 133, 141, 142, 143, 151, 152, 153, 161, 162, 163,
}};
std::array<float, 48> expected = {{
161, 162, 163, 121, 122, 123, 81, 82, 83, 41, 42, 43,
151, 152, 153, 111, 112, 113, 71, 72, 73, 31, 32, 33,
141, 142, 143, 101, 102, 103, 61, 62, 63, 21, 22, 23,
131, 132, 133, 91, 92, 93, 51, 52, 53, 11, 12, 13,
}};
// clang-format on
std::array<float, 48> actual;
FlipRot180Interleaved<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 48> tmp;
FlipInterleaved<4, 3>(original.data(), tmp.data());
Rot180Interleaved<4, 3>(tmp.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestFlipRot270Interleaved_3) {
// clang-format off
std::array<float, 48> original = {{
11, 12, 13, 21, 22, 23, 31, 32, 33, 41, 42, 43,
51, 52, 53, 61, 62, 63, 71, 72, 73, 81, 82, 83,
91, 92, 93, 101, 102, 103, 111, 112, 113, 121, 122, 123,
131, 132, 133, 141, 142, 143, 151, 152, 153, 161, 162, 163,
}};
std::array<float, 48> expected = {{
41, 42, 43, 31, 32, 33, 21, 22, 23, 11, 12, 13,
81, 82, 83, 71, 72, 73, 61, 62, 63, 51, 52, 53,
121, 122, 123, 111, 112, 113, 101, 102, 103, 91, 92, 93,
161, 162, 163, 151, 152, 153, 141, 142, 143, 131, 132, 133,
}};
// clang-format on
std::array<float, 48> actual;
FlipRot270Interleaved<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 48> tmp;
FlipInterleaved<4, 3>(original.data(), tmp.data());
Rot270Interleaved<4, 3>(tmp.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestRot90Planar_3) {
// clang-format off
const std::array<float, 48> original = {{
11, 21, 31, 41,
51, 61, 71, 81,
91, 101, 111, 121,
131, 141, 151, 161,
12, 22, 32, 42,
52, 62, 72, 82,
92, 102, 112, 122,
132, 142, 152, 162,
13, 23, 33, 43,
53, 63, 73, 83,
93, 103, 113, 123,
133, 143, 153, 163,
}};
std::array<float, 48> expected = {{
41, 81, 121, 161,
31, 71, 111, 151,
21, 61, 101, 141,
11, 51, 91, 131,
42, 82, 122, 162,
32, 72, 112, 152,
22, 62, 102, 142,
12, 52, 92, 132,
43, 83, 123, 163,
33, 73, 113, 153,
23, 63, 103, 143,
13, 53, 93, 133,
}};
// clang-format on
std::array<float, 48> actual;
Rot90Planar<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestRot180Planar_3) {
// clang-format off
std::array<float, 48> original = {{
11, 21, 31, 41,
51, 61, 71, 81,
91, 101, 111, 121,
131, 141, 151, 161,
12, 22, 32, 42,
52, 62, 72, 82,
92, 102, 112, 122,
132, 142, 152, 162,
13, 23, 33, 43,
53, 63, 73, 83,
93, 103, 113, 123,
133, 143, 153, 163,
}};
std::array<float, 48> expected = {{
161, 151, 141, 131,
121, 111, 101, 91,
81, 71, 61, 51,
41, 31, 21, 11,
162, 152, 142, 132,
122, 112, 102, 92,
82, 72, 62, 52,
42, 32, 22, 12,
163, 153, 143, 133,
123, 113, 103, 93,
83, 73, 63, 53,
43, 33, 23, 13,
}};
// clang-format on
std::array<float, 48> actual;
Rot180Planar<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 48> tmp;
Rot90Planar<4, 3>(original.data(), tmp.data());
Rot90Planar<4, 3>(tmp.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestRot270Planar_3) {
// clang-format off
std::array<float, 48> original = {{
11, 21, 31, 41,
51, 61, 71, 81,
91, 101, 111, 121,
131, 141, 151, 161,
12, 22, 32, 42,
52, 62, 72, 82,
92, 102, 112, 122,
132, 142, 152, 162,
13, 23, 33, 43,
53, 63, 73, 83,
93, 103, 113, 123,
133, 143, 153, 163,
}};
std::array<float, 48> expected = {{
131, 91, 51, 11,
141, 101, 61, 21,
151, 111, 71, 31,
161, 121, 81, 41,
132, 92, 52, 12,
142, 102, 62, 22,
152, 112, 72, 32,
162, 122, 82, 42,
133, 93, 53, 13,
143, 103, 63, 23,
153, 113, 73, 33,
163, 123, 83, 43,
}};
// clang-format on
std::array<float, 48> actual;
Rot270Planar<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 48> tmp1, tmp2;
Rot90Planar<4, 3>(original.data(), tmp1.data());
Rot90Planar<4, 3>(tmp1.data(), tmp2.data());
Rot90Planar<4, 3>(tmp2.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestFlipPlanar_3) {
// clang-format off
std::array<float, 48> original = {{
11, 21, 31, 41,
51, 61, 71, 81,
91, 101, 111, 121,
131, 141, 151, 161,
12, 22, 32, 42,
52, 62, 72, 82,
92, 102, 112, 122,
132, 142, 152, 162,
13, 23, 33, 43,
53, 63, 73, 83,
93, 103, 113, 123,
133, 143, 153, 163,
}};
std::array<float, 48> expected = {{
11, 51, 91, 131,
21, 61, 101, 141,
31, 71, 111, 151,
41, 81, 121, 161,
12, 52, 92, 132,
22, 62, 102, 142,
32, 72, 112, 152,
42, 82, 122, 162,
13, 53, 93, 133,
23, 63, 103, 143,
33, 73, 113, 153,
43, 83, 123, 163,
}};
// clang-format on
std::array<float, 48> actual;
FlipPlanar<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestFlipRot90Planar_3) {
// clang-format off
std::array<float, 48> original = {{
11, 21, 31, 41,
51, 61, 71, 81,
91, 101, 111, 121,
131, 141, 151, 161,
12, 22, 32, 42,
52, 62, 72, 82,
92, 102, 112, 122,
132, 142, 152, 162,
13, 23, 33, 43,
53, 63, 73, 83,
93, 103, 113, 123,
133, 143, 153, 163,
}};
std::array<float, 48> expected = {{
131, 141, 151, 161,
91, 101, 111, 121,
51, 61, 71, 81,
11, 21, 31, 41,
132, 142, 152, 162,
92, 102, 112, 122,
52, 62, 72, 82,
12, 22, 32, 42,
133, 143, 153, 163,
93, 103, 113, 123,
53, 63, 73, 83,
13, 23, 33, 43,
}};
// clang-format on
std::array<float, 48> actual;
FlipRot90Planar<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 48> tmp;
FlipPlanar<4, 3>(original.data(), tmp.data());
Rot90Planar<4, 3>(tmp.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestFlipRot180Planar_3) {
// clang-format off
std::array<float, 48> original = {{
11, 21, 31, 41,
51, 61, 71, 81,
91, 101, 111, 121,
131, 141, 151, 161,
12, 22, 32, 42,
52, 62, 72, 82,
92, 102, 112, 122,
132, 142, 152, 162,
13, 23, 33, 43,
53, 63, 73, 83,
93, 103, 113, 123,
133, 143, 153, 163,
}};
std::array<float, 48> expected = {{
161, 121, 81, 41,
151, 111, 71, 31,
141, 101, 61, 21,
131, 91, 51, 11,
162, 122, 82, 42,
152, 112, 72, 32,
142, 102, 62, 22,
132, 92, 52, 12,
163, 123, 83, 43,
153, 113, 73, 33,
143, 103, 63, 23,
133, 93, 53, 13,
}};
// clang-format on
std::array<float, 48> actual;
FlipRot180Planar<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 48> tmp;
FlipPlanar<4, 3>(original.data(), tmp.data());
Rot180Planar<4, 3>(tmp.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, TestFlipRot270Planar_3) {
// clang-format off
std::array<float, 48> original = {{
11, 21, 31, 41,
51, 61, 71, 81,
91, 101, 111, 121,
131, 141, 151, 161,
12, 22, 32, 42,
52, 62, 72, 82,
92, 102, 112, 122,
132, 142, 152, 162,
13, 23, 33, 43,
53, 63, 73, 83,
93, 103, 113, 123,
133, 143, 153, 163,
}};
std::array<float, 48> expected = {{
41, 31, 21, 11,
81, 71, 61, 51,
121, 111, 101, 91,
161, 151, 141, 131,
42, 32, 22, 12,
82, 72, 62, 52,
122, 112, 102, 92,
162, 152, 142, 132,
43, 33, 23, 13,
83, 73, 63, 53,
123, 113, 103, 93,
163, 153, 143, 133,
}};
// clang-format on
std::array<float, 48> actual;
FlipRot270Planar<4, 3>(original.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
std::array<float, 48> tmp;
FlipPlanar<4, 3>(original.data(), tmp.data());
Rot270Planar<4, 3>(tmp.data(), actual.data());
EXPECT_THAT(actual, ElementsAreArray(expected));
}
TEST(SymmetryTest, Inverses) {
// clang-format off
std::array<float, 48> original = {{
11, 12, 13, 21, 22, 23, 31, 32, 33, 41, 42, 43,
51, 52, 53, 61, 62, 63, 71, 72, 73, 81, 82, 83,
91, 92, 93, 101, 102, 103, 111, 112, 113, 121, 122, 123,
131, 132, 133, 141, 142, 143, 151, 152, 153, 161, 162, 163,
}};
// clang-format on
for (auto sym : kAllSymmetries) {
std::array<float, 48> transformed, inverse;
ApplySymmetry<4, 3>(sym, original.data(), transformed.data());
ApplySymmetry<4, 3>(Inverse(sym), transformed.data(), inverse.data());
EXPECT_THAT(inverse, ElementsAreArray(original)) << sym;
ApplySymmetryPlanar<4, 3>(sym, original.data(), transformed.data());
ApplySymmetryPlanar<4, 3>(Inverse(sym), transformed.data(), inverse.data());
EXPECT_THAT(inverse, ElementsAreArray(original)) << sym;
}
}
// Verify the ApplySymmetry overload for Coord matches that for arrays.
TEST(SymmetryTest, Coord) {
std::array<int, kN * kN> original;
for (int i = 0; i < kN * kN; ++i) {
original[i] = i;
}
for (auto sym : kAllSymmetries) {
EXPECT_EQ(Coord::kPass, ApplySymmetry(sym, Coord::kPass));
EXPECT_EQ(Coord::kResign, ApplySymmetry(sym, Coord::kResign));
EXPECT_EQ(Coord::kInvalid, ApplySymmetry(sym, Coord::kInvalid));
std::array<int, kN * kN> transformed;
ApplySymmetry<kN, 1>(sym, original.data(), transformed.data());
for (int i = 0; i < kN * kN; ++i) {
EXPECT_EQ(original[i], transformed[ApplySymmetry(sym, i)]) << sym;
}
}
}
// Build the symmetry concat table and verify it matches the one in the .cc
// file.
TEST(SymmetryTest, ConcatTable) {
Symmetry table[kNumSymmetries][kNumSymmetries];
// Table with which we will figure out how to concatenate two symmetries.
std::array<int, 4> original = {0, 1, 2, 3};
for (auto a : kAllSymmetries) {
std::array<int, 4> after_a;
ApplySymmetry<2, 1>(a, original.data(), after_a.data());
for (auto b : kAllSymmetries) {
std::array<int, 4> after_a_b;
ApplySymmetry<2, 1>(b, after_a.data(), after_a_b.data());
bool found = false;
for (auto c : kAllSymmetries) {
std::array<int, 4> concat;
ApplySymmetry<2, 1>(c, original.data(), concat.data());
if (concat == after_a_b) {
MG_CHECK(!found);
found = true;
table[a][b] = c;
}
}
MG_CHECK(found);
}
}
MG_LOG(INFO)
<< "constexpr Symmetry kConcatTable[kNumSymmetries][kNumSymmetries] = {";
for (int i = 0; i < kNumSymmetries; ++i) {
std::vector<std::string> row;
for (int j = 0; j < kNumSymmetries; ++j) {
std::ostringstream oss;
oss << table[i][j];
row.push_back(oss.str());
}
MG_LOG(INFO) << " {" << absl::StrJoin(row, ", ") << "},";
}
MG_LOG(INFO) << "};";
for (auto a : kAllSymmetries) {
for (auto b : kAllSymmetries) {
EXPECT_EQ(table[a][b], Concat(a, b));
}
}
}
TEST(SymmetryTest, ConcatSymmetryCoord) {
for (int i = 0; i < kN * kN; ++i) {
for (auto a : kAllSymmetries) {
Coord after_a = ApplySymmetry(a, i);
for (auto b : kAllSymmetries) {
Coord after_a_b = ApplySymmetry(b, after_a);
auto c = Concat(a, b);
Coord after_c = ApplySymmetry(c, i);
EXPECT_EQ(after_a_b, after_c)
<< "coord:" << Coord(i) << " a:" << a << " after_a:" << after_a
<< " b:" << b << " after_a_b:" << after_a_b << " c:" << c
<< " after_c:" << after_c;
}
}
}
}
TEST(SymmetryTest, ConcatSymmetryArray) {
std::array<int, kN * kN> original;
for (int i = 0; i < kN * kN; ++i) {
original[i] = i;
}
for (auto a : kAllSymmetries) {
std::array<int, kN * kN> after_a;
ApplySymmetry<kN, 1>(a, original.data(), after_a.data());
for (auto b : kAllSymmetries) {
std::array<int, kN * kN> after_a_b;
ApplySymmetry<kN, 1>(b, after_a.data(), after_a_b.data());
auto c = Concat(a, b);
std::array<int, kN * kN> after_c;
ApplySymmetry<kN, 1>(c, original.data(), after_c.data());
EXPECT_EQ(after_a_b, after_c);
}
}
}
} // namespace
} // namespace symmetry
} // namespace minigo
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