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

cscore/BUILD.bazel

@@ -223,10 +223,10 @@ wpilib_jni_java_library(
 cc_test(
     name = "cscore-cpp-test",
     size = "small",
-    srcs = glob(["src/test/native/**"]),
+    srcs = glob(["src/test/native/**/*.cpp"]),
     deps = [
         ":cscore",
-        "//thirdparty/googletest",
+        "//thirdparty/catch2",
     ],
 )
 

cscore/CMakeLists.txt

@@ -76,6 +76,6 @@ foreach(example ${cscore_examples})
 endforeach()
 
 if(WITH_TESTS)
-    wpilib_add_test(cscore src/test/native/cpp)
-    target_link_libraries(cscore_test cscore googletest)
+    wpilib_add_test_catch2(cscore src/test/native/cpp)
+    target_link_libraries(cscore_test cscore)
 endif()

cscore/build.gradle

@@ -3,6 +3,7 @@ import org.gradle.internal.os.OperatingSystem
 ext {
     nativeName = 'cscore'
     devMain = 'org.wpilib.cscore.DevMain'
+    nativeTestSuiteName = "${nativeName}Catch2Test"
 }
 
 // Removed because having the objective-cpp plugin added breaks
@@ -70,7 +71,7 @@ ext {
     sharedCvConfigs = [cscore    : [],
         cscoreBase: [],
         cscoreDev : [],
-        cscoreTest: [],
+        (nativeTestSuiteName): [],
         cscoreJNIShared: []]
     staticCvConfigs = [cscoreJNI: [],
         cscoreJNICvStatic: []]

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);
 }