TYPE3

[iec.git] / src / type3_AndroidCloud / anbox-master / external / process-cpp-minimal / include / core / testing / fork_and_run.h

diff --git a/src/type3_AndroidCloud/anbox-master/external/process-cpp-minimal/include/core/testing/fork_and_run.h b/src/type3_AndroidCloud/anbox-master/external/process-cpp-minimal/include/core/testing/fork_and_run.h
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+/*
+ * Copyright © 2012-2013 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authored by: Thomas Voß <thomas.voss@canonical.com>
+ */
+#ifndef CORE_TESTING_FORK_AND_RUN_H_
+#define CORE_TESTING_FORK_AND_RUN_H_
+
+#include <core/posix/exit.h>
+#include <core/posix/fork.h>
+#include <core/posix/visibility.h>
+
+#include <functional>
+
+namespace core
+{
+namespace testing
+{
+/**
+ * @brief The ForkAndRunResult enum models the different failure modes of fork_and_run.
+ */
+enum class ForkAndRunResult
+{
+    empty = 0, ///< Special value indicating no bit being set.
+    client_failed = 1 << 0, ///< The client failed.
+    service_failed = 1 << 1 ///< The service failed.
+};
+
+CORE_POSIX_DLL_PUBLIC ForkAndRunResult operator|(ForkAndRunResult lhs, ForkAndRunResult rhs);
+CORE_POSIX_DLL_PUBLIC ForkAndRunResult operator&(ForkAndRunResult lhs, ForkAndRunResult rhs);
+
+/**
+ * @brief Forks two processes for both the service and the client.
+ *
+ * The function does the following:
+ *   - Forks a process for the service and runs the respective closure.
+ *   - Forks a process for the client and runs the respective closure.
+ *   - After the client has finished, the service is signalled with sigterm.
+ *
+ * @throw std::system_error if an error occured during process interaction.
+ * @throw std::runtime_error for signalling all other error conditions.
+ * @param [in] service The service to be executed in a child process.
+ * @param [in] client The client to be executed in a child process.
+ * @return ForkAndRunResult indicating if either of service or client failed.
+ */
+CORE_POSIX_DLL_PUBLIC ForkAndRunResult fork_and_run(
+        const std::function<core::posix::exit::Status()>& service,
+        const std::function<core::posix::exit::Status()>& client);
+}
+}
+
+/**
+ * Test definition macro which runs a TEST in a forked process.
+ * Note that you can only use EXPECT_*, not
+ * ASSERT_*!
+ *
+ * Usage:
+ * TESTP(test_suite, test_name, {
+ *      test code ...
+ *      EXPECT_* ...
+ * })
+ */
+#define TESTP(test_suite, test_name, CODE)                                             \
+    TEST(test_suite, test_name) {                                                       \
+        auto test = [&]() {                                                             \
+            CODE                                                                        \
+            return HasFailure() ? core::posix::exit::Status::failure                    \
+                            : core::posix::exit::Status::success;                       \
+        };                                                                              \
+        auto child = core::posix::fork(                                                 \
+            test,                                                                       \
+            core::posix::StandardStream::empty);                                        \
+        auto result = child.wait_for(core::posix::wait::Flags::untraced);               \
+        EXPECT_EQ(core::posix::wait::Result::Status::exited, result.status);            \
+        EXPECT_EQ(core::posix::exit::Status::success, result.detail.if_exited.status);  \
+    } \
+
+/**
+ * Test definition macro which runs a TEST_F in a forked process.
+ * Note that you can only use EXPECT_*, not ASSERT_*!
+ *
+ * Usage:
+ * TESTP_F(FixtureName, TestName, {
+ *    ... test code ...
+ *    EXPECT_* ...
+ *  })
+ */
+#define TESTP_F(test_fixture, test_name, CODE)                                          \
+    TEST_F(test_fixture, test_name) {                                                   \
+        auto test = [&]() {                                                             \
+            CODE                                                                        \
+            return HasFailure() ? core::posix::exit::Status::failure                    \
+                            : core::posix::exit::Status::success;                       \
+        };                                                                              \
+        auto child = core::posix::fork(                                                 \
+            test,                                                                       \
+            core::posix::StandardStream::empty);                                        \
+        auto result = child.wait_for(core::posix::wait::Flags::untraced);               \
+        EXPECT_EQ(core::posix::wait::Result::Status::exited, result.status);            \
+        EXPECT_EQ(core::posix::exit::Status::success, result.detail.if_exited.status);  \
+    } \
+
+#endif // CORE_TESTING_FORK_AND_RUN_H_