Use DynamicLibraryManager to find library

Signed-off-by: Shreyas Atre <shreyasatre16@gmail.com>

unittests/CppInterOp/DynamicLibraryManagerTest.cpp

@@ -7,7 +7,7 @@
 
 #include "../../lib/Interpreter/Paths.h"
 
-#include <filesystem>
+#include "../../lib/Interpreter/DynamicLibraryManager.h"
 
 // This function isn't referenced outside its translation unit, but it
 // can't use the "static" keyword because its address is used for
@@ -61,27 +61,11 @@ TEST(DynamicLibraryManagerTest, Sanity) {
 
 TEST(UtilsPlatform, DLTest) {
   std::string err = "";
-  std::string path = "";
-  for (auto const& dir_entry : std::filesystem::recursive_directory_iterator(
-           std::filesystem::current_path())) {
-    if (std::string(dir_entry.path()).find("libTestSharedLib.") !=
-        std::string::npos) {
-      path = dir_entry.path();
-      break;
-    }
-  }
+  std::string path =
+      (new Cpp::DynamicLibraryManager)->lookupLibrary("libTestSharedLib");
   EXPECT_FALSE(path.empty());
   std::cout<<path<<"\n";
-#if defined(__APPLE__)
-  auto dlopen_handle =
-      Cpp::utils::platform::DLOpen("./libTestSharedLib.dylib", err);
-#elif defined(_WIN32)
-  auto dlopen_handle =
-      Cpp::utils::platform::DLOpen("./libTestSharedLib.dll", err);
-#else
-  auto dlopen_handle =
-      Cpp::utils::platform::DLOpen("./libTestSharedLib.so", err);
-#endif
+  auto dlopen_handle = Cpp::utils::platform::DLOpen(path, err);
   EXPECT_TRUE(dlopen_handle);
   EXPECT_TRUE(err.empty());
   Cpp::utils::platform::DLOpen("missing", err);