Fix death tests in multithreading context

src/program_options/Parser.cpp

@@ -7,6 +7,7 @@ using namespace cryfs::program_options;
 using std::pair;
 using std::vector;
 using std::cerr;
+using std::endl;
 using std::string;
 
 Parser::Parser(int argc, char *argv[]) :_options(_argsToVector(argc, argv)) {}
@@ -81,6 +82,6 @@ void Parser::_addPositionalOptionForBaseDir(po::options_description *desc, po::p
     cerr << "Usage: cryfs --config configFile [other options] rootDir mountPoint [-- [FUSE Mount Options]]\n";
     po::options_description desc;
     _addAllowedOptions(&desc);
-    cerr << desc << "\n";
+    cerr << desc << endl;
     exit(1);
 }

src/program_options/ProgramOptions.h

@@ -7,7 +7,7 @@
 
 namespace cryfs {
     namespace program_options {
-        class ProgramOptions {
+        class ProgramOptions final {
         public:
             ProgramOptions(const std::string &baseDir, const std::string &mountDir, const std::string &configFile, bool foreground, const std::vector<char *> &fuseOptions);
             ~ProgramOptions();

test/program_options/ParserTest.cpp

@@ -12,35 +12,38 @@ public:
     }
 };
 
-TEST_F(ProgramOptionsParserTest, MissingAllOptions) {
+class ProgramOptionsParserDeathTest: public ProgramOptionsParserTest {};
+
+TEST_F(ProgramOptionsParserDeathTest, MissingAllOptions) {
     EXPECT_DEATH(
-            parse({"./myExecutable"}),
-    "Usage:"
+        parse({"./myExecutable"}),
+        "Usage:"
     );
+    std::cout << "exited" << std::endl;
 }
 
-TEST_F(ProgramOptionsParserTest, MissingDir) {
+TEST_F(ProgramOptionsParserDeathTest, MissingDir) {
     EXPECT_DEATH(
         parse({"./myExecutable", "/home/user/baseDir"}),
         "Usage:"
     );
 }
 
-TEST_F(ProgramOptionsParserTest, ConfigFileMissing) {
+TEST_F(ProgramOptionsParserDeathTest, ConfigFileMissing) {
     EXPECT_DEATH(
             parse({"./myExecutable", "/home/user/baseDir", "/home/user/mountDir"}),
     "Usage:"
     );
 }
 
-TEST_F(ProgramOptionsParserTest, HelpLongOption) {
+TEST_F(ProgramOptionsParserDeathTest, HelpLongOption) {
     EXPECT_DEATH(
             parse({"./myExecutable", "--help"}),
     "Usage:"
     );
 }
 
-TEST_F(ProgramOptionsParserTest, HelpShortOption) {
+TEST_F(ProgramOptionsParserDeathTest, HelpShortOption) {
     EXPECT_DEATH(
             parse({"./myExecutable", "-h"}),
     "Usage:"