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c2a82417e9
Bug: b/358039777 Change-Id: Id191d584e22cf82384a5d16ed355f41c0bb32b7b Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/358981 Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Fanny Linderborg <linderborg@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42764}
73 lines
2.9 KiB
C++
73 lines
2.9 KiB
C++
/*
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* Copyright 2024 The WebRTC project authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "video/corruption_detection/halton_sequence.h"
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#include "test/gmock.h"
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#include "test/gtest.h"
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namespace webrtc {
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namespace {
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using ::testing::DoubleEq;
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using ::testing::ElementsAre;
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TEST(HaltonSequenceTest, ShouldGenerateBase2SequenceByDefault) {
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HaltonSequence halton_sequence;
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EXPECT_THAT(halton_sequence.GetNext(), ElementsAre(DoubleEq(0.0)));
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EXPECT_THAT(halton_sequence.GetNext(), ElementsAre(DoubleEq(1.0 / 2)));
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EXPECT_THAT(halton_sequence.GetNext(), ElementsAre(DoubleEq(1.0 / 4)));
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EXPECT_THAT(halton_sequence.GetNext(), ElementsAre(DoubleEq(3.0 / 4)));
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EXPECT_THAT(halton_sequence.GetNext(), ElementsAre(DoubleEq(1.0 / 8)));
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EXPECT_THAT(halton_sequence.GetNext(), ElementsAre(DoubleEq(5.0 / 8)));
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EXPECT_THAT(halton_sequence.GetNext(), ElementsAre(DoubleEq(3.0 / 8)));
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}
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TEST(HaltonSequenceTest,
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ShouldGenerateBase2Base3SequencesWhenCreatedAs2Dimensional) {
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HaltonSequence halton_sequence(2);
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EXPECT_THAT(halton_sequence.GetNext(),
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ElementsAre(DoubleEq(0.0), DoubleEq(0.0)));
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EXPECT_THAT(halton_sequence.GetNext(),
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ElementsAre(DoubleEq(1.0 / 2), DoubleEq(1.0 / 3)));
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EXPECT_THAT(halton_sequence.GetNext(),
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ElementsAre(DoubleEq(1.0 / 4), DoubleEq(2.0 / 3)));
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EXPECT_THAT(halton_sequence.GetNext(),
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ElementsAre(DoubleEq(3.0 / 4), DoubleEq(1.0 / 9)));
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EXPECT_THAT(halton_sequence.GetNext(),
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ElementsAre(DoubleEq(1.0 / 8), DoubleEq(4.0 / 9)));
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EXPECT_THAT(halton_sequence.GetNext(),
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ElementsAre(DoubleEq(5.0 / 8), DoubleEq(7.0 / 9)));
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EXPECT_THAT(halton_sequence.GetNext(),
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ElementsAre(DoubleEq(3.0 / 8), DoubleEq(2.0 / 9)));
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}
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TEST(HaltonSequenceTest, ShouldRestartSequenceWhenResetIsCalled) {
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HaltonSequence halton_sequence;
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EXPECT_THAT(halton_sequence.GetCurrentIndex(), 0);
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EXPECT_THAT(halton_sequence.GetNext(), ElementsAre(DoubleEq(0.0)));
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EXPECT_THAT(halton_sequence.GetCurrentIndex(), 1);
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EXPECT_THAT(halton_sequence.GetNext(), ElementsAre(DoubleEq(1.0 / 2)));
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EXPECT_THAT(halton_sequence.GetCurrentIndex(), 2);
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halton_sequence.Reset();
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EXPECT_THAT(halton_sequence.GetCurrentIndex(), 0);
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EXPECT_THAT(halton_sequence.GetNext(), ElementsAre(DoubleEq(0.0)));
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}
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TEST(HaltonSequenceTest, ShouldSetCurrentIndexWhenSetCurrentIndexIsCalled) {
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HaltonSequence halton_sequence;
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EXPECT_THAT(halton_sequence.GetCurrentIndex(), 0);
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halton_sequence.SetCurrentIndex(3);
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EXPECT_THAT(halton_sequence.GetCurrentIndex(), 3);
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EXPECT_THAT(halton_sequence.GetNext(), ElementsAre(DoubleEq(3.0 / 4)));
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}
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} // namespace
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} // namespace webrtc
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