From 6c238333ec7976a422d576e0332cb111a970ef2f Mon Sep 17 00:00:00 2001
From: Josh Peterson <joshuap@unity3d.com>
Date: Mon, 28 Nov 2022 12:57:10 -0500
Subject: [PATCH] Run embedding API tests on Linux

With this change, we link pthreads properly in the embedding API tests
on Linux, locate the CoreCLR runtime properly, and run the tests on CI.
---
 .yamato/scripts/test_linux.sh        | 12 ++++++------
 unity/embed_api_tests/CMakeLists.txt |  3 +++
 unity/embed_api_tests/main.cpp       | 14 ++++++++++----
 3 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/.yamato/scripts/test_linux.sh b/.yamato/scripts/test_linux.sh
index 7a49f3c1d73015..510d4ee614801d 100755
--- a/.yamato/scripts/test_linux.sh
+++ b/.yamato/scripts/test_linux.sh
@@ -27,14 +27,14 @@ echo
 
 echo
 echo "***********************************"
-echo "Unity: Skipping embedding API tests"
+echo "Unity: Running embedding API tests"
 echo "***********************************"
 echo
-# cd unity/embed_api_tests
-# cmake -DCMAKE_BUILD_TYPE=$configuration .
-# cmake --build .
-# ./mono_test_app
-# cd ../../
+cd unity/embed_api_tests
+cmake -DCMAKE_BUILD_TYPE=$configuration .
+cmake --build .
+./mono_test_app
+cd ../../
 
 echo
 echo "**********************************"
diff --git a/unity/embed_api_tests/CMakeLists.txt b/unity/embed_api_tests/CMakeLists.txt
index 558952220c7425..a21597cbb761c0 100644
--- a/unity/embed_api_tests/CMakeLists.txt
+++ b/unity/embed_api_tests/CMakeLists.txt
@@ -10,5 +10,8 @@ include_directories(${CLR_DIR}/src/inc)
 
 add_executable(${PROJECT_NAME_STR} ${PROJECT_SRC_FILES})
 target_link_libraries(${PROJECT_NAME_STR} ${CMAKE_DL_LIBS})
+if(UNIX AND NOT APPLE)
+    target_link_libraries(${PROJECT_NAME_STR} pthread)
+endif()
 target_compile_features(${PROJECT_NAME_STR} PRIVATE cxx_range_for)
 target_compile_definitions(${PROJECT_NAME_STR} PRIVATE ENABLE_MONO=1 PLATFORM_STANDALONE=1)
diff --git a/unity/embed_api_tests/main.cpp b/unity/embed_api_tests/main.cpp
index ffd8527d819748..f1e18f51583022 100644
--- a/unity/embed_api_tests/main.cpp
+++ b/unity/embed_api_tests/main.cpp
@@ -18,10 +18,10 @@
 #define UNITY_EDITOR 1
 #define USE_CORECLR
 
-// On macOS the compiler does not define _DEBUG, but CMake defines
+// On macOS and Linux the compiler does not define _DEBUG, but CMake defines
 // NDEBUG for release builds, so if NDEBUG is not defined, assume this
 // is a debug build and define _DEBUG.
-#if defined(__APPLE__)
+#if defined(__APPLE__) || defined(__linux__)
 #ifndef NDEBUG
 #define _DEBUG
 #endif
@@ -89,6 +89,7 @@ void* get_handle()
         if(s_MonoLibrary == nullptr)
         {
             assert(false && "Failed to load mono\n");
+            printf("Failed to load mono from '%s'\n", g_monoDllPath.c_str());
             exit(1);
         }
     }
@@ -2439,8 +2440,13 @@ void SetupMono(Mode mode)
 #endif // __aarch64__
 #endif
 #elif defined(__linux__)
-        monoLibFolder = "/usr/share/dotnet/shared/Microsoft.NETCore.App/3.1.0";
-        g_monoDllPath = "../../bin/Product/Linux.x64.Debug/libcoreclr.so";
+#if defined(_DEBUG)
+        monoLibFolder = abs_path_from_file("../../artifacts/bin/microsoft.netcore.app.runtime.linux-x64/Debug/runtimes/linux-x64/lib/net7.0");
+        g_monoDllPath = abs_path_from_file("../../artifacts/bin/microsoft.netcore.app.runtime.linux-x64/Debug/runtimes/linux-x64/native/libcoreclr.so");
+#else
+        monoLibFolder = abs_path_from_file("../../artifacts/bin/microsoft.netcore.app.runtime.linux-x64/Release/runtimes/linux-x64/lib/net7.0");
+        g_monoDllPath = abs_path_from_file("../../artifacts/bin/microsoft.netcore.app.runtime.linux-x64/Release/runtimes/linux-x64/native/libcoreclr.so");
+#endif
 #elif defined(WIN32)
 #if defined(_DEBUG)
 #ifdef _M_AMD64