Replace catch2 with google test

CMakeLists.txt

@@ -32,7 +32,7 @@ cmake_policy(SET CMP0116 OLD)
 # User Options
 # =============================================================================
 option(CPP_20_SUPPORT "C++20 Support" ON)
-option(SERENE_BUILD_TESTING "Enable tests" OFF)
+option(SERENE_BUILD_TESTING "Enable tests" ON)
 option(SERENE_ENABLE_BUILDID "Enable build id." OFF)
 option(SERENE_ENABLE_THINLTO "Enable ThisLTO." ON)
 option(SERENE_ENABLE_DOCS "Enable document generation" OFF)
@@ -132,15 +132,16 @@ if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
   Include(FetchContent)
 
   if(SERENE_BUILD_TESTING)
-    message(STATUS "Fetching Catch2 v3...")
-
+    message(STATUS "Fetching google test...")
     FetchContent_Declare(
-      Catch2
-      GIT_REPOSITORY https://github.com/catchorg/Catch2.git
-      GIT_TAG        v3.0.0-preview4
-      )
-    FetchContent_MakeAvailable(Catch2)
-    list(APPEND CMAKE_MODULE_PATH ${catch2_SOURCE_DIR}/extras)
+      googletest
+      URL https://github.com/google/googletest/archive/refs/tags/v1.14.0.tar.gz
+      DOWNLOAD_EXTRACT_TIMESTAMP ON
+    )
+
+    # For Windows: Prevent overriding the parent project's compiler/linker settings
+    set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+    FetchContent_MakeAvailable(googletest)
   endif()
 
   # LLVM setup ==================================================================

serene/CMakeLists.txt

@@ -134,3 +134,8 @@ install(TARGETS serene EXPORT SereneTargets
 
 add_subdirectory(src)
 add_subdirectory(include)
+
+if(SERENE_BUILD_TESTING)
+  enable_testing()
+  add_subdirectory(tests)
+endif()

serene/src/jit/jit.cpp

@@ -19,6 +19,7 @@
 #include "jit/jit.h"
 
 #include "options.h" // for Options
+#include "source_mgr.h"
 
 #include <__type_traits/remove_reference.h> // for remov...
 #include <__utility/move.h>                 // for move
@@ -130,9 +131,7 @@ size_t JIT::getNumberOfJITDylibs(const llvm::StringRef &nsName) {
 
 JIT::JIT(llvm::orc::JITTargetMachineBuilder &&jtmb,
          std::unique_ptr<Options> opts)
-    :
-
-      options(std::move(opts)),
+    : options(std::move(opts)),
       cache(options->JITenableObjectCache ? new ObjectCache() : nullptr),
       gdbListener(options->JITenableGDBNotificationListener
                       ? llvm::JITEventListener::createGDBRegistrationListener()

serene/src/jit/jit.h

@@ -27,6 +27,7 @@
 #define JIT_JIT_H
 
 #include "options.h"
+#include "source_mgr.h"
 
 #include <__memory/unique_ptr.h>
 
@@ -60,7 +61,7 @@ class LLLazyJIT;
 } // namespace llvm::orc
 
 namespace serene {
-class Namespace;
+class SourceMgr;
 } // namespace serene
 
 #define MAIN_PROCESS_JD_NAME "*main*"
@@ -109,6 +110,9 @@ class JIT {
 
   std::vector<const char *> loadPaths;
 
+  // The source manager is the owner of all the sources and there can be
+  // just one source manager.
+  SourceMgr srcMgr;
   // We keep the jibDylibs for each name space in a mapping from the ns
   // name to a vector of jitdylibs, the last element is always the newest
   // jitDylib

serene/tests/CMakeLists.txt

@@ -0,0 +1,43 @@
+# Serene Programming Language
+#
+# Copyright (c) 2019-2023 Sameer Rahmani <lxsameer@gnu.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 2.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+if(SERENE_BUILD_TESTING)
+  include(GoogleTest)
+
+
+
+
+  add_executable(serene_test
+    reader_tests.cpp
+  )
+
+  target_link_libraries(serene_test PRIVATE
+    GTest::gtest_main
+    LLVMSupport)
+
+  target_include_directories(serene_test
+    SYSTEM PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/../include
+    ${CMAKE_CURRENT_SOURCE_DIR}/../src
+  )
+
+  target_include_directories(serene_test SYSTEM PUBLIC
+    # We don't want the generated files from table gen
+    # to be treated as local since the contain warnings
+    ${PROJECT_BINARY_DIR}/serene/include)
+
+  gtest_discover_tests(serene_test)
+endif()

serene/tests/reader_tests.cpp

@@ -0,0 +1,23 @@
+/* -*- C++ -*-
+ * Serene Programming Language
+ *
+ * Copyright (c) 2019-2023 Sameer Rahmani <lxsameer@gnu.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "reader.h"
+
+#include <gtest/gtest.h>
+
+TEST(Reader, ReadNumber) { EXPECT_EQ(1, 1); }