From 7286156e8ccde06d86ceb5a9ee2876f68b87b07f Mon Sep 17 00:00:00 2001
From: Ladislas de Toldi <ladislas@detoldi.me>
Date: Wed, 26 Oct 2022 19:32:34 +0200
Subject: [PATCH] :alembic: (stl): Test std::ranges support for arm-gcc + clang

---
 spikes/stl_cxxsupport/main.cpp                | 16 +++++++++
 tests/functional/CMakeLists.txt               |  2 ++
 .../tests/stl_features/CMakeLists.txt         | 15 ++++++++
 .../tests/stl_features/suite_std_ranges.cpp   | 35 +++++++++++++++++++
 4 files changed, 68 insertions(+)
 create mode 100644 tests/functional/tests/stl_features/CMakeLists.txt
 create mode 100644 tests/functional/tests/stl_features/suite_std_ranges.cpp

diff --git a/spikes/stl_cxxsupport/main.cpp b/spikes/stl_cxxsupport/main.cpp
index eff0ebd85a..7ae5c431a9 100644
--- a/spikes/stl_cxxsupport/main.cpp
+++ b/spikes/stl_cxxsupport/main.cpp
@@ -3,6 +3,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 #include <array>
+#include <ranges>
 #include <span>
 
 #include "drivers/BufferedSerial.h"
@@ -94,5 +95,20 @@ auto main() -> int
 	auto back = span0.back();
 	log_info("span0.back() = %i", back);
 
+	log_info("Test std::range features");
+
+	constexpr auto range = [](const auto a, const auto b) {
+		auto x = std::ranges::views::iota(a) | std::ranges::views::take(b - a + 1);
+		return std::ranges::views::all(x);
+	};
+
+	for (auto x: range(1, 10)) {
+		log_info("x: %i", x);
+	}
+
+	for (auto y: range(20, 25)) {
+		log_info("y: %i", y);
+	}
+
 	return 1;
 }
diff --git a/tests/functional/CMakeLists.txt b/tests/functional/CMakeLists.txt
index 6b9430de14..b5610723ed 100644
--- a/tests/functional/CMakeLists.txt
+++ b/tests/functional/CMakeLists.txt
@@ -42,3 +42,5 @@ add_subdirectory(${TESTS_FUNCTIONAL_TESTS_DIR}/boost_ut)
 add_subdirectory(${TESTS_FUNCTIONAL_TESTS_DIR}/io_expander)
 add_subdirectory(${TESTS_FUNCTIONAL_TESTS_DIR}/file_manager)
 add_subdirectory(${TESTS_FUNCTIONAL_TESTS_DIR}/qdac)
+
+add_subdirectory(${TESTS_FUNCTIONAL_TESTS_DIR}/stl_features)
diff --git a/tests/functional/tests/stl_features/CMakeLists.txt b/tests/functional/tests/stl_features/CMakeLists.txt
new file mode 100644
index 0000000000..78108634ba
--- /dev/null
+++ b/tests/functional/tests/stl_features/CMakeLists.txt
@@ -0,0 +1,15 @@
+# Leka - LekaOS
+# Copyright 2022 APF France handicap
+# SPDX-License-Identifier: Apache-2.0
+
+register_functional_test(
+	TARGET
+		functional_ut_std_features
+
+	INCLUDE_DIRECTORIES
+
+	SOURCES
+		suite_std_ranges.cpp
+
+	LINK_LIBRARIES
+)
diff --git a/tests/functional/tests/stl_features/suite_std_ranges.cpp b/tests/functional/tests/stl_features/suite_std_ranges.cpp
new file mode 100644
index 0000000000..ce6f1dedef
--- /dev/null
+++ b/tests/functional/tests/stl_features/suite_std_ranges.cpp
@@ -0,0 +1,35 @@
+// Leka - LekaOS
+// Copyright 2022 APF France handicap
+// SPDX-License-Identifier: Apache-2.0
+
+#include <ranges>
+
+#include "tests/config.h"
+
+using namespace boost::ut;
+
+constexpr auto range = [](auto a, auto b) {
+	auto x = std::ranges::views::iota(a) | std::ranges::views::take(b - a + 1);
+	return std::ranges::views::all(x);
+};
+
+suite suite_std_ranges = [] {
+	"generate range of 5 values from 1 to 5"_test = [] {
+		auto data = std::to_array({1, 2, 3, 4, 5});
+		auto i	  = 0;
+		for (auto v: range(1, 5)) {
+			expect(data[i] == v);
+			++i;
+		}
+	};
+
+	"store range in variable and compare"_test = [&] {
+		auto data = range(10, 20);
+		auto i	  = 0;
+
+		for (auto v: range(10, 20)) {
+			expect(data[i] == v);
+			++i;
+		}
+	};
+};