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
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+++ b/utils/signals/misc_test.cpp
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+// 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);
+}