dedf08166a
Added 863 files from NVIDIA/cccl sparse checkout: - c2h/ (27 files): Catch2 test helpers — generators, validators, runner - nvbench_helper/ (10 files): Benchmark harness utilities - cmake/ (29 files): CMake presets and build helpers - cudax/ (794 files): Experimental CUDA extensions - AGENTS.md: NVIDIA's official AI agent instructions for CCCL - CMakePresets.json: Standardized build configurations - cccl-version.json: Version tracking Also added CCCL_ASSET_MAP.md mapping all 4295 CCCL files to competition value and PRD items. cccl_upstream now covers 100% of competition-critical assets: - 27 tuning headers (SM80/90/100 benchmark data) - 32 dispatch headers (algorithm implementations) - 60 Thrust examples (correctness verification) - 217 CUB Catch2 tests (regression matrix) - 153 CUB benchmarks (parameter space search) - 18 CUB examples (API verification) - 27 test helpers + benchmark harness - 794 cudax experimental extensions
99 lines
2.9 KiB
Plaintext
99 lines
2.9 KiB
Plaintext
//===----------------------------------------------------------------------===//
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//
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// Part of CUDA Experimental in CUDA C++ Core Libraries,
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// under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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// SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES.
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//
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//===----------------------------------------------------------------------===//
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#include <cuda/experimental/execution.cuh>
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#include "common/checked_receiver.cuh"
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#include "common/utility.cuh"
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#include "testing.cuh"
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namespace ex = cuda::experimental::execution;
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namespace
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{
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// Custom domain for testing
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struct my_domain
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{};
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// Simple test query
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struct query1_t : ex::forwarding_query_t
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{
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template <class Env>
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_CCCL_HOST_DEVICE_API auto operator()(const Env& env) const noexcept -> decltype(env.query(*this))
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{
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return env.query(*this);
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}
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};
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inline constexpr auto query1 = query1_t{};
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} // namespace
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C2H_TEST("write_env basic functionality", "[write_env][adaptors]")
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{
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// Test that write_env wraps a sender and adds environment information
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auto env = ex::prop{query1, 42};
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auto sndr = ex::write_env(ex::just(42), env);
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auto op = ex::connect(std::move(sndr), checked_value_receiver{42});
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ex::start(op);
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// the receiver will check the result
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}
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C2H_TEST("write_env pipe syntax", "[write_env][adaptors]")
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{
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// Test that write_env supports pipe syntax (sndr | write_env(env))
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auto env = ex::prop{query1, 42};
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auto sndr = ex::just(42) | ex::write_env(env);
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auto op = ex::connect(std::move(sndr), checked_value_receiver{42});
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ex::start(op);
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// the receiver will check the result
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}
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#if _CCCL_HOST_COMPILATION()
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C2H_TEST("write_env updates the receiver's environment", "[write_env][adaptors]")
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{
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auto sndr = ex::just() | ex::let_value([]() {
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return ex::read_env(query1);
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})
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| ex::write_env(ex::prop{query1, 42});
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auto [result] = ex::sync_wait(std::move(sndr)).value();
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CHECK(result == 42);
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}
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struct fake_allocator
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{};
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C2H_TEST("write_env does not hide the receiver's environment", "[write_env][adaptors]")
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{
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auto sndr = ex::just() | ex::let_value([]() {
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return ex::read_env(ex::get_allocator);
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})
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| ex::write_env(ex::prop{query1, 42});
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auto env = ex::prop{ex::get_allocator, fake_allocator{}};
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auto [result] = ex::sync_wait(std::move(sndr), env).value();
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STATIC_REQUIRE(std::is_same_v<decltype(result), fake_allocator>);
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}
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C2H_TEST("write_env prefers the passed env over the receiver's env", "[write_env][adaptors]")
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{
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auto sndr = ex::just() | ex::let_value([]() {
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return ex::read_env(query1);
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})
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| ex::write_env(ex::prop{query1, 42});
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auto env = ex::prop{query1, 100};
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auto [result] = ex::sync_wait(std::move(sndr), env).value();
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CHECK(result == 42);
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}
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#endif // _CCCL_HOST_COMPILATION()
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