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diff --git a/src/3rdparty/resonance-audio/resonance_audio/base/spherical_angle_test.cc b/src/3rdparty/resonance-audio/resonance_audio/base/spherical_angle_test.cc
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+++ b/src/3rdparty/resonance-audio/resonance_audio/base/spherical_angle_test.cc
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+/*
+Copyright 2018 Google Inc. All Rights Reserved.
+
+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 "base/spherical_angle.h"
+
+#include "third_party/googletest/googletest/include/gtest/gtest.h"
+#include "base/constants_and_types.h"
+
+namespace vraudio {
+
+namespace {
+
+// Spherical angle to be used in the rotation tests.
+const float kAzimuth = 0.0f;
+const float kElevation = 0.0f;
+const SphericalAngle kSphericalAngle(0.0f, 0.0f);
+
+// Arbitrary rotation angle to be used in the rotation tests.
+const float kRotationAngle = 10.0f * kRadiansFromDegrees;
+
+// Tests that the GetWorldPositionOnUnitSphere() and FromWorldPosition()
+// functions act as perfect inverses of one another for angles defined on the
+// unit sphere (in this case the vraudio cube speaker layout).
+TEST(SphericalAngleTest, CartesianToSphericalAndBackTest) {
+  // Azimuth and elevation angles of the cubic spherical loudspeaker array.
+  const std::vector<SphericalAngle> kCubeAngles = {
+      SphericalAngle::FromDegrees(45.0f, 35.26f),
+      SphericalAngle::FromDegrees(-45.0f, 35.26f),
+      SphericalAngle::FromDegrees(-135.0f, 35.26f),
+      SphericalAngle::FromDegrees(135.0f, 35.26f),
+      SphericalAngle::FromDegrees(45.0f, -35.26f),
+      SphericalAngle::FromDegrees(-45.0f, -35.26f),
+      SphericalAngle::FromDegrees(-135.0f, -35.26f),
+      SphericalAngle::FromDegrees(135.0f, -35.26f)};
+
+  for (size_t i = 0; i < kCubeAngles.size(); ++i) {
+    const WorldPosition position =
+        kCubeAngles[i].GetWorldPositionOnUnitSphere();
+    const SphericalAngle angle = SphericalAngle::FromWorldPosition(position);
+    EXPECT_EQ(kCubeAngles[i].azimuth(), angle.azimuth());
+    EXPECT_EQ(kCubeAngles[i].elevation(), angle.elevation());
+  }
+}
+
+// Tests the horizontal angle flip across the median plane.
+TEST(SphericalAngleTest, FlipTest) {
+  const std::vector<SphericalAngle> kTestAngles = {
+      SphericalAngle::FromDegrees(45.0f, 35.26f),
+      SphericalAngle::FromDegrees(-15.0f, -10.0f)};
+
+  for (size_t i = 0; i < kTestAngles.size(); ++i) {
+    SphericalAngle flipped_spherical_angle = kTestAngles[i].FlipAzimuth();
+
+    // Check if the flipped spherical anglee is correct.
+    EXPECT_NEAR(kTestAngles[i].azimuth(), -flipped_spherical_angle.azimuth(),
+                kEpsilonFloat);
+    EXPECT_NEAR((kTestAngles[i].elevation()),
+                flipped_spherical_angle.elevation(), kEpsilonFloat);
+  }
+}
+
+// Tests that the Rotate() function correctly rotates the spherical angle
+// against the x axis (right facing).
+TEST(SphericalAngleTest, RotateXTest) {
+  const WorldPosition kAxis = {1.0f, 0.0f, 0.0f};
+  const WorldRotation kRotation(AngleAxisf(kRotationAngle, kAxis));
+  // Rotate against the x axis (right facing).
+
+  const SphericalAngle kXrotatedSphericalAngle =
+      kSphericalAngle.Rotate(kRotation);
+
+  // Check if the rotated spherical angle is correct.
+  EXPECT_NEAR(kAzimuth, kXrotatedSphericalAngle.azimuth(), kEpsilonFloat);
+  EXPECT_NEAR((kElevation + kRotationAngle),
+              kXrotatedSphericalAngle.elevation(), kEpsilonFloat);
+}
+
+// Tests that the Rotate() function correctly rotates the spherical angle
+// against the y axis (upward facing).
+TEST(SphericalAngleTest, RotateYTest) {
+  const WorldPosition kAxis(0.0f, 1.0f, 0.0f);
+  const WorldRotation kRotation(AngleAxisf(kRotationAngle, kAxis));
+  // Rotate against the y axis (upward facing).
+  const SphericalAngle kYrotatedSphericalAngle =
+      kSphericalAngle.Rotate(kRotation);
+
+  // Check if the rotated spherical angle is correct.
+  EXPECT_NEAR((kAzimuth + kRotationAngle), kYrotatedSphericalAngle.azimuth(),
+              kEpsilonFloat);
+  EXPECT_NEAR(kElevation, kYrotatedSphericalAngle.elevation(), kEpsilonFloat);
+}
+
+// Tests that the Rotate() function correctly rotates the spherical angle
+// against the Z axis (forward facing).
+TEST(SphericalAngleTest, RotateZTest) {
+  const WorldPosition kAxis = {0.0f, 0.0f, 1.0f};
+  const WorldRotation kRotation(AngleAxisf(kRotationAngle, kAxis));
+  // Rotate against the z axis (forward facing).
+  const SphericalAngle kZrotatedSphericalAngle =
+      kSphericalAngle.Rotate(kRotation);
+
+  // Check if the rotated spherical angle is correct.
+  EXPECT_NEAR(kAzimuth, kZrotatedSphericalAngle.azimuth(), kEpsilonFloat);
+  EXPECT_NEAR(kElevation, kZrotatedSphericalAngle.elevation(), kEpsilonFloat);
+}
+
+}  // namespace
+
+}  // namespace vraudio