[sim] Translate unit tests to catch2 (#9004)

simulation/halsim_ds_socket/BUILD.bazel

@@ -78,7 +78,7 @@ cc_test(
     srcs = glob(["src/test/native/**/*.cpp"]),
     deps = [
         "//simulation/halsim_ds_socket",
-        "//thirdparty/googletest",
+        "//thirdparty/catch2",
     ],
 )
 

simulation/halsim_ds_socket/build.gradle

@@ -11,18 +11,13 @@ ext {
 
 apply plugin: 'google-test-test-suite'
 
-ext {
-    staticGtestConfigs = [:]
-}
-
-staticGtestConfigs["${pluginName}Test"] = []
-apply from: "${rootDir}/shared/googletest.gradle"
+apply from: "${rootDir}/shared/catch2.gradle"
 
 apply from: "${rootDir}/shared/plugins/setupBuild.gradle"
 
 model {
     testSuites {
-        "${pluginName}Test"(GoogleTestTestSuiteSpec) {
+        "${pluginName}Catch2Test"(GoogleTestTestSuiteSpec) {
             for(NativeComponentSpec c : $.components) {
                 if (c.name == pluginName) {
                     testing c
@@ -38,6 +33,9 @@ model {
                     srcDirs 'src/test/native/include', 'src/main/native/cpp'
                 }
             }
+            binaries.all {
+                lib project: ':thirdparty:catch2', library: 'catch2', linkage: 'static'
+            }
         }
     }
     binaries {

simulation/halsim_ds_socket/src/test/native/cpp/main.cpp

@@ -2,13 +2,35 @@
 // 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 <string_view>
+
+#include <catch2/catch_session.hpp>
+#include <catch2/catch_test_macros.hpp>
 
 #include "wpi/hal/HAL.h"
 
-int main(int argc, char** argv) {
-  HAL_Initialize(500, 0);
-  ::testing::InitGoogleTest(&argc, argv);
-  int ret = RUN_ALL_TESTS();
-  return ret;
+namespace {
+
+bool IsCatchListCommand(int argc, char** argv) {
+  for (int i = 1; i < argc; ++i) {
+    std::string_view arg{argv[i]};
+    if (arg == "--list-tests" || arg == "--list-tags" ||
+        arg == "--list-reporters" || arg == "--list-listeners") {
+      return true;
+    }
+  }
+  return false;
+}
+
+}  // namespace
+
+TEST_CASE("HALSimDSSocket RuntimeType", "[simulation][halsim_ds_socket]") {
+  CHECK(HAL_RuntimeType::HAL_RUNTIME_SIMULATION == HAL_GetRuntimeType());
+}
+
+int main(int argc, char** argv) {
+  if (!IsCatchListCommand(argc, argv)) {
+    HAL_Initialize(500, 0);
+  }
+  return Catch::Session().run(argc, argv);
 }