aboutsummaryrefslogtreecommitdiffstats
path: root/utils/signals/misc_test.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'utils/signals/misc_test.cpp')
-rw-r--r--utils/signals/misc_test.cpp133
1 files changed, 133 insertions, 0 deletions
diff --git a/utils/signals/misc_test.cpp b/utils/signals/misc_test.cpp
new file mode 100644
index 000000000000..76f36b0e5082
--- /dev/null
+++ b/utils/signals/misc_test.cpp
@@ -0,0 +1,133 @@
+// Copyright 2010 The Kyua Authors.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+// * Neither the name of Google Inc. nor the names of its contributors
+// may be used to endorse or promote products derived from this software
+// without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "utils/signals/misc.hpp"
+
+extern "C" {
+#include <signal.h>
+#include <unistd.h>
+}
+
+#include <cstdlib>
+
+#include <atf-c++.hpp>
+
+#include "utils/defs.hpp"
+#include "utils/fs/path.hpp"
+#include "utils/process/child.ipp"
+#include "utils/process/status.hpp"
+#include "utils/signals/exceptions.hpp"
+
+namespace fs = utils::fs;
+namespace process = utils::process;
+namespace signals = utils::signals;
+
+
+namespace {
+
+
+static void program_reset_raise(void) UTILS_NORETURN;
+
+
+/// Body of a subprocess that tests the signals::reset function.
+///
+/// This function programs a signal to be ignored, then uses signal::reset to
+/// bring it back to its default handler and then delivers the signal to self.
+/// The default behavior of the signal is for the process to die, so this
+/// function should never return correctly (and thus the child process should
+/// always die due to a signal if all goes well).
+static void
+program_reset_raise(void)
+{
+ struct ::sigaction sa;
+ sa.sa_handler = SIG_IGN;
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = 0;
+ if (::sigaction(SIGUSR1, &sa, NULL) == -1)
+ std::exit(EXIT_FAILURE);
+
+ signals::reset(SIGUSR1);
+ ::kill(::getpid(), SIGUSR1);
+
+ // Should not be reached, but we do not assert this condition because we
+ // want to exit cleanly if the signal does not abort our execution to let
+ // the parent easily know what happened.
+ std::exit(EXIT_SUCCESS);
+}
+
+
+/// Body of a subprocess that executes the signals::reset_all function.
+///
+/// The process exits with success if the function worked, or with a failure if
+/// an error is reported. No signals are tested.
+static void
+run_reset_all(void)
+{
+ const bool ok = signals::reset_all();
+ std::exit(ok ? EXIT_SUCCESS : EXIT_FAILURE);
+}
+
+
+} // anonymous namespace
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(reset__ok);
+ATF_TEST_CASE_BODY(reset__ok)
+{
+ std::auto_ptr< process::child > child = process::child::fork_files(
+ program_reset_raise, fs::path("/dev/stdout"), fs::path("/dev/stderr"));
+ process::status status = child->wait();
+ ATF_REQUIRE(status.signaled());
+ ATF_REQUIRE_EQ(SIGUSR1, status.termsig());
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(reset__invalid);
+ATF_TEST_CASE_BODY(reset__invalid)
+{
+ ATF_REQUIRE_THROW(signals::system_error, signals::reset(-1));
+}
+
+
+ATF_TEST_CASE_WITHOUT_HEAD(reset_all);
+ATF_TEST_CASE_BODY(reset_all)
+{
+ std::auto_ptr< process::child > child = process::child::fork_files(
+ run_reset_all, fs::path("/dev/stdout"), fs::path("/dev/stderr"));
+ process::status status = child->wait();
+ ATF_REQUIRE(status.exited());
+ ATF_REQUIRE_EQ(EXIT_SUCCESS, status.exitstatus());
+}
+
+
+ATF_INIT_TEST_CASES(tcs)
+{
+ ATF_ADD_TEST_CASE(tcs, reset__ok);
+ ATF_ADD_TEST_CASE(tcs, reset__invalid);
+ ATF_ADD_TEST_CASE(tcs, reset_all);
+}