Fix v2 tests that directly link Loader which statically link

Signed-off-by: Neil R. Spruit <neil.r.spruit@intel.com>

Author: nrspruit

test/adapters/level_zero/v2/command_list_cache_test.cpp

@@ -19,7 +19,14 @@
 #include <unordered_set>
 #include <vector>
 
-struct CommandListCacheTest : public uur::urContextTest {};
+struct CommandListCacheTest : public uur::urContextTest {
+  void SetUp() override {
+    // Initialize Level Zero driver is required if this test is linked statically with Level Zero loader, the driver will not be init otherwise.
+    zeInit(ZE_INIT_FLAG_GPU_ONLY);
+    urContextTest::SetUp();
+  }
+
+};
 
 UUR_INSTANTIATE_DEVICE_TEST_SUITE(CommandListCacheTest);
 

test/adapters/level_zero/v2/deferred_kernel.cpp

@@ -13,6 +13,8 @@
 
 struct urEnqueueKernelLaunchTest : uur::urKernelExecutionTest {
   void SetUp() override {
+    // Initialize Level Zero driver is required if this test is linked statically with Level Zero loader, the driver will not be init otherwise.
+    zeInit(ZE_INIT_FLAG_GPU_ONLY);
     program_name = "fill";
     UUR_RETURN_ON_FATAL_FAILURE(urKernelExecutionTest::SetUp());
   }

test/adapters/level_zero/v2/event_pool_test.cpp

@@ -109,6 +109,9 @@ struct EventPoolTest : public uur::urQueueTestWithParam<ProviderParams> {
 
     auto params = getParam();
 
+    // Initialize Level Zero driver is required if this test is linked statically with Level Zero loader, the driver will not be init otherwise.
+    zeInit(ZE_INIT_FLAG_GPU_ONLY);
+
     mockVec.push_back(device);
 
     cache = std::unique_ptr<event_pool_cache>(new event_pool_cache(