iox-eclipse-iceoryx#1036 Implement filesystem tests

Signed-off-by: Christian Eltzschig <me@elchris.org>

iceoryx_hoofs/CMakeLists.txt

@@ -142,6 +142,7 @@ add_library(iceoryx_hoofs
     source/concurrent/active_object.cpp
     source/concurrent/loffli.cpp
     source/cxx/deadline_timer.cpp
+    source/cxx/filesystem.cpp
     source/cxx/helplets.cpp
     source/cxx/generic_raii.cpp
     source/cxx/unique_id.cpp

iceoryx_hoofs/test/moduletests/test_cxx_filesystem.cpp

@@ -0,0 +1,107 @@
+// Copyright (c) 2022 by Apex.AI Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// SPDX-License-Identifier: Apache-2.0
+
+#include "iceoryx_hoofs/cxx/filesystem.hpp"
+#include "test.hpp"
+
+namespace
+{
+using namespace ::testing;
+using namespace iox::cxx;
+
+using permsBaseType_t = std::underlying_type<perms>::type;
+
+TEST(filesystem_test, permsSatisfiesBinaryOrOperationCorrectly)
+{
+    constexpr perms TEST_VALUE_LHS = perms::others_write;
+    constexpr perms TEST_VALUE_RHS = perms::group_all;
+
+    constexpr auto BASE_VALUE_LHS = static_cast<permsBaseType_t>(TEST_VALUE_LHS);
+    constexpr auto BASE_VALUE_RHS = static_cast<permsBaseType_t>(TEST_VALUE_RHS);
+
+    EXPECT_THAT(static_cast<permsBaseType_t>(TEST_VALUE_LHS | TEST_VALUE_RHS), Eq(BASE_VALUE_LHS | BASE_VALUE_RHS));
+}
+
+TEST(filesystem_test, permsSatisfiesBinaryAndOperationCorrectly)
+{
+    constexpr perms TEST_VALUE_LHS = perms::others_read;
+    constexpr perms TEST_VALUE_RHS = perms::mask;
+
+    constexpr auto BASE_VALUE_LHS = static_cast<permsBaseType_t>(TEST_VALUE_LHS);
+    constexpr auto BASE_VALUE_RHS = static_cast<permsBaseType_t>(TEST_VALUE_RHS);
+
+    EXPECT_THAT(static_cast<permsBaseType_t>(TEST_VALUE_LHS & TEST_VALUE_RHS), Eq(BASE_VALUE_LHS & BASE_VALUE_RHS));
+}
+
+TEST(filesystem_test, permsSatisfiesBinaryExclusiveOrOperationCorrectly)
+{
+    constexpr perms TEST_VALUE_LHS = perms::set_gid;
+    constexpr perms TEST_VALUE_RHS = perms::set_uid;
+
+    constexpr auto BASE_VALUE_LHS = static_cast<permsBaseType_t>(TEST_VALUE_LHS);
+    constexpr auto BASE_VALUE_RHS = static_cast<permsBaseType_t>(TEST_VALUE_RHS);
+
+    EXPECT_THAT(static_cast<permsBaseType_t>(TEST_VALUE_LHS ^ TEST_VALUE_RHS), Eq(BASE_VALUE_LHS ^ BASE_VALUE_RHS));
+}
+
+TEST(filesystem_test, permsSatisfiesBinaryComplementOperationCorrectly)
+{
+    constexpr perms TEST_VALUE = perms::owner_read;
+
+    constexpr auto BASE_VALUE = static_cast<permsBaseType_t>(TEST_VALUE);
+
+    EXPECT_THAT(static_cast<permsBaseType_t>(~TEST_VALUE), Eq(~BASE_VALUE));
+}
+
+TEST(filesystem_test, permsSatisfiesBinaryOrAssignmentOperationCorrectly)
+{
+    constexpr perms TEST_VALUE = perms::sticky_bit;
+    constexpr perms TEST_VALUE_RHS = perms::group_read;
+
+    auto sutBaseValue = static_cast<permsBaseType_t>(TEST_VALUE);
+    constexpr auto BASE_VALUE_RHS = static_cast<permsBaseType_t>(TEST_VALUE_RHS);
+
+    perms sut = TEST_VALUE;
+
+    EXPECT_THAT(static_cast<permsBaseType_t>(sut |= TEST_VALUE_RHS), Eq(sutBaseValue |= BASE_VALUE_RHS));
+}
+
+TEST(filesystem_test, permsSatisfiesBinaryAndAssignmentOperationCorrectly)
+{
+    constexpr perms TEST_VALUE = perms::others_exec;
+    constexpr perms TEST_VALUE_RHS = perms::others_all;
+
+    auto sutBaseValue = static_cast<permsBaseType_t>(TEST_VALUE);
+    constexpr auto BASE_VALUE_RHS = static_cast<permsBaseType_t>(TEST_VALUE_RHS);
+
+    perms sut = TEST_VALUE;
+
+    EXPECT_THAT(static_cast<permsBaseType_t>(sut &= TEST_VALUE_RHS), Eq(sutBaseValue &= BASE_VALUE_RHS));
+}
+
+TEST(filesystem_test, permsSatisfiesBinaryExclusiveOrAssignmentOperationCorrectly)
+{
+    constexpr perms TEST_VALUE = perms::none;
+    constexpr perms TEST_VALUE_RHS = perms::owner_all;
+
+    auto sutBaseValue = static_cast<permsBaseType_t>(TEST_VALUE);
+    constexpr auto BASE_VALUE_RHS = static_cast<permsBaseType_t>(TEST_VALUE_RHS);
+
+    perms sut = TEST_VALUE;
+
+    EXPECT_THAT(static_cast<permsBaseType_t>(sut ^= TEST_VALUE_RHS), Eq(sutBaseValue ^= BASE_VALUE_RHS));
+}
+} // namespace