[cscore] Translate unit tests to catch2 (#8999)

cscore/src/test/native/cpp/CameraSourceTest.cpp

@@ -2,19 +2,14 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#include <gtest/gtest.h>
+#include <catch2/catch_test_macros.hpp>
 
 #include "wpi/cs/HttpCamera.hpp"
 #include "wpi/cs/cscore_cpp.hpp"
 
 namespace wpi::cs {
 
-class CameraSourceTest : public ::testing::Test {
- protected:
-  CameraSourceTest() = default;
-};
-
-TEST_F(CameraSourceTest, HTTPCamera) {
+TEST_CASE("CameraSourceTest HTTPCamera", "[cscore][camera-source]") {
   auto source = HttpCamera("camera", "http://localhost:8000");
   wpi::cs::Shutdown();
 }

cscore/src/test/native/cpp/RawSourceTest.cpp

@@ -4,15 +4,15 @@
 
 #include "wpi/cs/RawSource.hpp"
 
-#include <gtest/gtest.h>
+#include <catch2/catch_test_macros.hpp>
 
 namespace wpi::cs {
 
-TEST(RawSourceTest, CreateEmpty) {
+TEST_CASE("RawSourceTest CreateEmpty", "[cscore][raw-source]") {
   RawSource source;
 }
 
-TEST(RawSourceTest, Create) {
+TEST_CASE("RawSourceTest Create", "[cscore][raw-source]") {
   RawSource source("test", wpi::util::PixelFormat::BGR, 640, 480, 30);
 }
 

cscore/src/test/native/cpp/main.cpp

@@ -2,10 +2,8 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
-#include <gtest/gtest.h>
+#include <catch2/catch_session.hpp>
 
 int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  int ret = RUN_ALL_TESTS();
-  return ret;
+  return Catch::Session().run(argc, argv);
 }