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#include <cpp-utils/process/SignalCatcher.h>
#include <gtest/gtest.h>
#include <csignal>
using cpputils::SignalCatcher;
namespace {
void raise_signal(int signal) {
const int error = ::raise(signal);
if (error != 0) {
throw std::runtime_error("Error raising signal");
}
}
}
TEST(SignalCatcherTest, givenNoSignalCatcher_whenRaisingSigint_thenDies) {
testing::FLAGS_gtest_death_test_style = "threadsafe";
EXPECT_DEATH(
raise_signal(SIGINT),
""
);
}
TEST(SignalCatcherTest, givenNoSignalCatcher_whenRaisingSigterm_thenDies) {
testing::FLAGS_gtest_death_test_style = "threadsafe";
EXPECT_DEATH(
raise_signal(SIGTERM),
""
);
}
TEST(SignalCatcherTest, givenSigIntCatcher_whenRaisingSigInt_thenCatches) {
const SignalCatcher catcher({SIGINT});
EXPECT_FALSE(catcher.signal_occurred());
raise_signal(SIGINT);
EXPECT_TRUE(catcher.signal_occurred());
// raise again
raise_signal(SIGINT);
EXPECT_TRUE(catcher.signal_occurred());
}
TEST(SignalCatcherTest, givenSigTermCatcher_whenRaisingSigTerm_thenCatches) {
const SignalCatcher catcher({SIGTERM});
EXPECT_FALSE(catcher.signal_occurred());
raise_signal(SIGTERM);
EXPECT_TRUE(catcher.signal_occurred());
// raise again
raise_signal(SIGTERM);
EXPECT_TRUE(catcher.signal_occurred());
}
TEST(SignalCatcherTest, givenSigIntAndSigTermCatcher_whenRaisingSigInt_thenCatches) {
const SignalCatcher catcher({SIGINT, SIGTERM});
EXPECT_FALSE(catcher.signal_occurred());
raise_signal(SIGINT);
EXPECT_TRUE(catcher.signal_occurred());
// raise again
raise_signal(SIGINT);
EXPECT_TRUE(catcher.signal_occurred());
}
TEST(SignalCatcherTest, givenSigIntAndSigTermCatcher_whenRaisingSigTerm_thenCatches) {
const SignalCatcher catcher({SIGINT, SIGTERM});
EXPECT_FALSE(catcher.signal_occurred());
raise_signal(SIGTERM);
EXPECT_TRUE(catcher.signal_occurred());
// raise again
raise_signal(SIGTERM);
EXPECT_TRUE(catcher.signal_occurred());
}
TEST(SignalCatcherTest, givenSigIntAndSigTermCatcher_whenRaisingSigIntAndSigTerm_thenCatches) {
const SignalCatcher catcher({SIGINT, SIGTERM});
EXPECT_FALSE(catcher.signal_occurred());
raise_signal(SIGTERM);
EXPECT_TRUE(catcher.signal_occurred());
raise_signal(SIGINT);
EXPECT_TRUE(catcher.signal_occurred());
}
TEST(SignalCatcherTest, givenSigIntCatcherAndSigTermCatcher_whenRaisingSignalsInOrder_thenCorrectCatcherCatches) {
const SignalCatcher sigintCatcher({SIGINT});
const SignalCatcher sigtermCatcher({SIGTERM});
EXPECT_FALSE(sigintCatcher.signal_occurred());
raise_signal(SIGINT);
EXPECT_TRUE(sigintCatcher.signal_occurred());
EXPECT_FALSE(sigtermCatcher.signal_occurred());
raise_signal(SIGTERM);
EXPECT_TRUE(sigtermCatcher.signal_occurred());
}
TEST(SignalCatcherTest, givenSigIntCatcherAndSigTermCatcher_whenRaisingSignalsInReverseOrder_thenCorrectCatcherCatches) {
const SignalCatcher sigintCatcher({SIGINT});
const SignalCatcher sigtermCatcher({SIGTERM});
EXPECT_FALSE(sigtermCatcher.signal_occurred());
raise_signal(SIGTERM);
EXPECT_TRUE(sigtermCatcher.signal_occurred());
EXPECT_FALSE(sigintCatcher.signal_occurred());
raise_signal(SIGINT);
EXPECT_TRUE(sigintCatcher.signal_occurred());
}
TEST(SignalCatcherTest, givenNestedSigIntCatchers_whenRaisingSignals_thenCorrectCatcherCatches) {
const SignalCatcher outerCatcher({SIGINT});
{
const SignalCatcher middleCatcher({SIGINT});
EXPECT_FALSE(middleCatcher.signal_occurred());
raise_signal(SIGINT);
EXPECT_TRUE(middleCatcher.signal_occurred());
{
const SignalCatcher innerCatcher({SIGINT});
EXPECT_FALSE(innerCatcher.signal_occurred());
raise_signal(SIGINT);
EXPECT_TRUE(innerCatcher.signal_occurred());
}
}
EXPECT_FALSE(outerCatcher.signal_occurred());
raise_signal(SIGINT);
EXPECT_TRUE(outerCatcher.signal_occurred());
}
TEST(SignalCatcherTest, givenExpiredSigIntCatcher_whenRaisingSigInt_thenDies) {
testing::FLAGS_gtest_death_test_style = "threadsafe";
{
const SignalCatcher catcher({SIGINT});
}
EXPECT_DEATH(
raise_signal(SIGINT),
""
);
}
TEST(SignalCatcherTest, givenExpiredSigTermCatcher_whenRaisingSigTerm_thenDies) {
testing::FLAGS_gtest_death_test_style = "threadsafe";
{
const SignalCatcher catcher({SIGTERM});
}
EXPECT_DEATH(
raise_signal(SIGTERM),
""
);
}
TEST(SignalCatcherTest, givenExpiredSigIntCatcherAndSigTermCatcher_whenRaisingSigTerm_thenDies) {
testing::FLAGS_gtest_death_test_style = "threadsafe";
{
const SignalCatcher sigIntCatcher({SIGTERM});
const SignalCatcher sigTermCatcer({SIGTERM});
}
EXPECT_DEATH(
raise_signal(SIGTERM),
""
);
}
TEST(SignalCatcherTest, givenSigTermCatcherAndExpiredSigIntCatcher_whenRaisingSigTerm_thenCatches) {
const SignalCatcher sigTermCatcher({SIGTERM});
{
const SignalCatcher sigIntCatcher({SIGINT});
}
EXPECT_FALSE(sigTermCatcher.signal_occurred());
raise_signal(SIGTERM);
EXPECT_TRUE(sigTermCatcher.signal_occurred());
}
TEST(SignalCatcherTest, givenSigTermCatcherAndExpiredSigIntCatcher_whenRaisingSigInt_thenDies) {
testing::FLAGS_gtest_death_test_style = "threadsafe";
const SignalCatcher sigTermCacher({SIGTERM});
{
const SignalCatcher sigIntCatcher({SIGINT});
}
EXPECT_DEATH(
raise_signal(SIGINT),
""
);
}
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