Move Mujoco USD test fixture out of MJCF plugin directory and rename to test_utils.

PiperOrigin-RevId: 753183581
Change-Id: Iedd6594ac679ca026f8af29c647d18ae93003a53

test/experimental/usd/plugins/mjcf/mjcf_file_format_test.cc

@@ -17,7 +17,7 @@
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
-#include "test/experimental/usd/plugins/mjcf/fixture.h"
+#include "test/experimental/usd/test_utils.h"
 #include "test/fixture.h"
 #include <pxr/base/gf/vec2f.h>
 #include <pxr/base/gf/vec3f.h>
@@ -56,6 +56,7 @@ TF_DEFINE_PRIVATE_TOKENS(_tokens,
 PXR_NAMESPACE_CLOSE_SCOPE
 
 namespace mujoco {
+namespace usd {
 namespace {
 
 using pxr::SdfPath;
@@ -730,4 +731,5 @@ TEST_F(MjcfSdfFileFormatPluginTest, TestPhysicsColliders) {
 }
 
 }  // namespace
+}  // namespace usd
 }  // namespace mujoco

test/experimental/usd/test_utils.cc

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "test/experimental/usd/plugins/mjcf/fixture.h"
+#include "test/experimental/usd/test_utils.h"
 
 #include <string>
 
@@ -28,6 +28,7 @@
 #include <pxr/usd/usdGeom/mesh.h>
 #include <pxr/usd/usdGeom/primvarsAPI.h>
 namespace mujoco {
+namespace usd {
 
 using pxr::SdfPath;
 
@@ -61,4 +62,5 @@ void ExpectAttributeHasConnection(pxr::UsdStageRefPtr stage, const char* path,
   EXPECT_EQ(sources.size(), 1);
   EXPECT_EQ(sources[0], SdfPath(connection_path));
 }
+}  // namespace usd
 }  // namespace mujoco

test/experimental/usd/test_utils.h

@@ -67,6 +67,7 @@
   EXPECT_FALSE((stage)->GetAttributeAtPath(SdfPath(path)).HasValue());
 
 namespace mujoco {
+namespace usd {
 
 pxr::SdfLayerRefPtr LoadLayer(
     const std::string& xml,
@@ -94,5 +95,6 @@ void ExpectAttributeEqual<pxr::SdfAssetPath>(pxr::UsdStageRefPtr stage,
 
 void ExpectAttributeHasConnection(pxr::UsdStageRefPtr stage, const char* path,
                                   const char* connection_path);
+}  // namespace usd
 }  // namespace mujoco
 #endif  // MUJOCO_TEST_EXPERIMENTAL_USD_PLUGINS_MJCF_FIXTURE_H_