[oneDPL][ranges][test] + checking std views (which are supported) wit…

…h algorithms

test/parallel_api/ranges/std_ranges_test_views.pass.cpp

@@ -0,0 +1,44 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Copyright (C) Intel Corporation
+//
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+// This file incorporates work covered by the following copyright and permission
+// notice:
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+//
+//===----------------------------------------------------------------------===//
+
+#include "std_ranges_test.h"
+
+std::int32_t
+main()
+{
+#if _ENABLE_STD_RANGES_TESTING
+    using namespace test_std_ranges;
+    namespace dpl_ranges = oneapi::dpl::ranges;
+
+    const int n = 1<<25; //32M
+
+    //transform view
+    test_range_algo<0>{n}.test_view(std::views::transform([](const auto a) { return a*2; }), 
+        dpl_ranges::find_if, std::ranges::find_if, pred, proj);
+
+    //reverse view
+    test_range_algo<1>{n}.test_view(std::views::reverse, dpl_ranges::sort, std::ranges::sort, std::less{});
+
+    //take view
+    test_range_algo<2>{n}.test_view(std::views::take(n/2), dpl_ranges::count_if, std::ranges::count_if, pred, proj);
+
+    //drop_view
+    test_range_algo<3>{n}.test_view(std::views::drop(n/2), dpl_ranges::count_if, std::ranges::count_if, pred, proj);
+
+    //NOTICE: std::ranges::views::all, std::ranges::subrange, std::span are tested implicitly within the 'test_range_algo' test engine.
+#endif //_ENABLE_STD_RANGES_TESTING
+
+    return TestUtils::done(_ENABLE_STD_RANGES_TESTING);
+}