+TEST_F(ProgramEnvTest, TestExecuteNoWait) {
+ using namespace llvm::sys;
+
+ if (getenv("LLVM_PROGRAM_TEST_EXECUTE_NO_WAIT")) {
+ sleep_for(/*seconds*/ 1);
+ exit(0);
+ }
+
+ std::string Executable =
+ sys::fs::getMainExecutable(TestMainArgv0, &ProgramTestStringArg1);
+ const char *argv[] = {
+ Executable.c_str(),
+ "--gtest_filter=ProgramEnvTest.TestExecuteNoWait",
+ nullptr
+ };
+
+ // Add LLVM_PROGRAM_TEST_EXECUTE_NO_WAIT to the environment of the child.
+ addEnvVar("LLVM_PROGRAM_TEST_EXECUTE_NO_WAIT=1");
+
+ std::string Error;
+ bool ExecutionFailed;
+ ProcessInfo PI1 = ExecuteNoWait(Executable, argv, getEnviron(), nullptr, 0,
+ &Error, &ExecutionFailed);
+ ASSERT_FALSE(ExecutionFailed) << Error;
+ ASSERT_NE(PI1.Pid, 0) << "Invalid process id";
+
+ unsigned LoopCount = 0;
+
+ // Test that Wait() with WaitUntilTerminates=true works. In this case,
+ // LoopCount should only be incremented once.
+ while (true) {
+ ++LoopCount;
+ ProcessInfo WaitResult = Wait(PI1, 0, true, &Error);
+ ASSERT_TRUE(Error.empty());
+ if (WaitResult.Pid == PI1.Pid)
+ break;
+ }
+
+ EXPECT_EQ(LoopCount, 1u) << "LoopCount should be 1";
+
+ ProcessInfo PI2 = ExecuteNoWait(Executable, argv, getEnviron(), nullptr, 0,
+ &Error, &ExecutionFailed);
+ ASSERT_FALSE(ExecutionFailed) << Error;
+ ASSERT_NE(PI2.Pid, 0) << "Invalid process id";
+
+ // Test that Wait() with SecondsToWait=0 performs a non-blocking wait. In this
+ // cse, LoopCount should be greater than 1 (more than one increment occurs).
+ while (true) {
+ ++LoopCount;
+ ProcessInfo WaitResult = Wait(PI2, 0, false, &Error);
+ ASSERT_TRUE(Error.empty());
+ if (WaitResult.Pid == PI2.Pid)
+ break;
+ }
+
+ ASSERT_GT(LoopCount, 1u) << "LoopCount should be >1";
+}
+
+TEST_F(ProgramEnvTest, TestExecuteAndWaitTimeout) {
+ using namespace llvm::sys;
+
+ if (getenv("LLVM_PROGRAM_TEST_TIMEOUT")) {
+ sleep_for(/*seconds*/ 10);
+ exit(0);
+ }
+
+ std::string Executable =
+ sys::fs::getMainExecutable(TestMainArgv0, &ProgramTestStringArg1);
+ const char *argv[] = {
+ Executable.c_str(),
+ "--gtest_filter=ProgramEnvTest.TestExecuteAndWaitTimeout",
+ nullptr
+ };
+
+ // Add LLVM_PROGRAM_TEST_TIMEOUT to the environment of the child.
+ addEnvVar("LLVM_PROGRAM_TEST_TIMEOUT=1");
+
+ std::string Error;
+ bool ExecutionFailed;
+ int RetCode =
+ ExecuteAndWait(Executable, argv, getEnviron(), nullptr, /*secondsToWait=*/1, 0,
+ &Error, &ExecutionFailed);
+ ASSERT_EQ(-2, RetCode);
+}
+
+TEST(ProgramTest, TestExecuteNegative) {
+ std::string Executable = "i_dont_exist";
+ const char *argv[] = { Executable.c_str(), nullptr };
+
+ {
+ std::string Error;
+ bool ExecutionFailed;
+ int RetCode = ExecuteAndWait(Executable, argv, nullptr, nullptr, 0, 0,
+ &Error, &ExecutionFailed);
+ ASSERT_TRUE(RetCode < 0) << "On error ExecuteAndWait should return 0 or "
+ "positive value indicating the result code";
+ ASSERT_TRUE(ExecutionFailed);
+ ASSERT_FALSE(Error.empty());
+ }
+
+ {
+ std::string Error;
+ bool ExecutionFailed;
+ ProcessInfo PI = ExecuteNoWait(Executable, argv, nullptr, nullptr, 0,
+ &Error, &ExecutionFailed);
+ ASSERT_EQ(PI.Pid, 0)
+ << "On error ExecuteNoWait should return an invalid ProcessInfo";
+ ASSERT_TRUE(ExecutionFailed);
+ ASSERT_FALSE(Error.empty());
+ }
+
+}
+
+#ifdef LLVM_ON_WIN32
+const char utf16le_text[] =
+ "\x6c\x00\x69\x00\x6e\x00\x67\x00\xfc\x00\x69\x00\xe7\x00\x61\x00";
+const char utf16be_text[] =
+ "\x00\x6c\x00\x69\x00\x6e\x00\x67\x00\xfc\x00\x69\x00\xe7\x00\x61";
+#endif
+const char utf8_text[] = "\x6c\x69\x6e\x67\xc3\xbc\x69\xc3\xa7\x61";
+
+TEST(ProgramTest, TestWriteWithSystemEncoding) {
+ SmallString<128> TestDirectory;
+ ASSERT_NO_ERROR(fs::createUniqueDirectory("program-test", TestDirectory));
+ errs() << "Test Directory: " << TestDirectory << '\n';
+ errs().flush();
+ SmallString<128> file_pathname(TestDirectory);
+ path::append(file_pathname, "international-file.txt");
+ // Only on Windows we should encode in UTF16. For other systems, use UTF8
+ ASSERT_NO_ERROR(sys::writeFileWithEncoding(file_pathname.c_str(), utf8_text,
+ sys::WEM_UTF16));
+ int fd = 0;
+ ASSERT_NO_ERROR(fs::openFileForRead(file_pathname.c_str(), fd));
+#if defined(LLVM_ON_WIN32)
+ char buf[18];
+ ASSERT_EQ(::read(fd, buf, 18), 18);
+ if (strncmp(buf, "\xfe\xff", 2) == 0) { // UTF16-BE
+ ASSERT_EQ(strncmp(&buf[2], utf16be_text, 16), 0);
+ } else if (strncmp(buf, "\xff\xfe", 2) == 0) { // UTF16-LE
+ ASSERT_EQ(strncmp(&buf[2], utf16le_text, 16), 0);
+ } else {
+ FAIL() << "Invalid BOM in UTF-16 file";
+ }
+#else
+ char buf[10];
+ ASSERT_EQ(::read(fd, buf, 10), 10);
+ ASSERT_EQ(strncmp(buf, utf8_text, 10), 0);
+#endif
+ ::close(fd);
+ ASSERT_NO_ERROR(fs::remove(file_pathname.str()));
+ ASSERT_NO_ERROR(fs::remove(TestDirectory.str()));
+}
+