[oneDPL][ranges][L1][tests] + a test for ranges::unique_copy

Author: MikeDvorskiy

test/parallel_api/ranges/std_ranges_unique_copy.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;
+
+    auto unique_copy_checker = [](std::ranges::random_access_range auto&& r_in,
+                           std::ranges::random_access_range auto&& r_out, auto&&... args)
+    {
+        auto res = std::ranges::unique_copy(std::forward<decltype(r_in)>(r_in), std::ranges::begin(r_out),
+            std::forward<decltype(args)>(args)...);
+
+        using ret_type = std::ranges::unique_copy_result<std::ranges::borrowed_iterator_t<decltype(r_in)>,
+            std::ranges::borrowed_iterator_t<decltype(r_out)>>;
+        return ret_type{res.in, res.out};
+    };
+
+    test_range_algo<0, int, data_in_out>{big_sz}(dpl_ranges::unique_copy,  unique_copy_checker, std::ranges::equal_to{});
+    test_range_algo<1, int, data_in_out>{}(dpl_ranges::unique_copy,  unique_copy_checker, std::not_equal_to{}, proj);
+    test_range_algo<2, int, data_in_out>{}(dpl_ranges::unique_copy,  unique_copy_checker, std::ranges::equal_to{}, proj);
+    test_range_algo<3, P2, data_in_out>{}(dpl_ranges::unique_copy,  unique_copy_checker, std::ranges::equal_to{}, &P2::x);
+    test_range_algo<4, P2, data_in_out>{}(dpl_ranges::unique_copy,  unique_copy_checker, std::ranges::equal_to{}, &P2::proj);
+#endif //_ENABLE_STD_RANGES_TESTING
+
+    return TestUtils::done(_ENABLE_STD_RANGES_TESTING);
+}