Add SYCL version check

tests/header/header_test.cpp

@@ -38,16 +38,7 @@ class TEST_NAME : public util::test_base {
 
   /** execute this test
   */
-  void run(util::logger &log) override {
-/** checks that SYCL_LANGUAGE_VERSION is defined
-*/
-#if !defined(SYCL_LANGUAGE_VERSION)
-#define TEST_FAIL
-    log.note("SYCL_LANGUAGE_VERSION not present");
-#else
-    log.note("SYCL_LANGUAGE_VERSION = %d", static_cast<int>(SYCL_LANGUAGE_VERSION));
-#endif
-
+  void run(util::logger& log) override {
 /** checks that __FAST_RELAXED_MATH__ is defined
 */
 #if defined(__FAST_RELAXED_MATH__)
@@ -72,6 +63,16 @@ class TEST_NAME : public util::test_base {
   }
 };
 
+TEST_CASE(
+    "The implementation defines the correct SYCL_LANGUAGE_VERSION macro") {
+#ifndef SYCL_LANGUAGE_VERSION
+  FAIL("SYCL_LANGUAGE_VERSION is not defined");
+#else
+  STATIC_REQUIRE(std::is_same_v<decltype(SYCL_LANGUAGE_VERSION), long>);
+  STATIC_REQUIRE(SYCL_LANGUAGE_VERSION == 202012L);
+#endif
+}
+
 // register this test with the test_collection
 util::test_proxy<TEST_NAME> proxy;