Remove unused debug info constants.
[oota-llvm.git] / unittests / Support / ProgramTest.cpp
index 1cf53d50b0241b8f932fa08acf7183ead04bd7cd..c0e6e80e358b6f37d75c8aead36cdf3683a8aa15 100644 (file)
@@ -8,11 +8,10 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Path.h"
-#include "llvm/Support/PathV1.h"
 #include "llvm/Support/Program.h"
 #include "gtest/gtest.h"
-
 #include <stdlib.h>
 #if defined(__APPLE__)
 # include <crt_externs.h>
 extern char **environ;
 #endif
 
+#if defined(LLVM_ON_UNIX)
+#include <unistd.h>
+void sleep_for(unsigned int seconds) {
+  sleep(seconds);
+}
+#elif defined(LLVM_ON_WIN32)
+#include <windows.h>
+void sleep_for(unsigned int seconds) {
+  Sleep(seconds * 1000);
+}
+#else
+#error sleep_for is not implemented on your platform.
+#endif
+
+#define ASSERT_NO_ERROR(x)                                                     \
+  if (std::error_code ASSERT_NO_ERROR_ec = x) {                                \
+    SmallString<128> MessageStorage;                                           \
+    raw_svector_ostream Message(MessageStorage);                               \
+    Message << #x ": did not return errc::success.\n"                          \
+            << "error number: " << ASSERT_NO_ERROR_ec.value() << "\n"          \
+            << "error message: " << ASSERT_NO_ERROR_ec.message() << "\n";      \
+    GTEST_FATAL_FAILURE_(MessageStorage.c_str());                              \
+  } else {                                                                     \
+  }
 // From TestMain.cpp.
 extern const char *TestMainArgv0;
 
@@ -41,7 +64,7 @@ static void CopyEnvironment(std::vector<const char *> &out) {
   // environ seems to work for Windows and most other Unices.
   char **envp = environ;
 #endif
-  while (*envp != 0) {
+  while (*envp != nullptr) {
     out.push_back(*envp);
     ++envp;
   }
@@ -56,20 +79,21 @@ TEST(ProgramTest, CreateProcessTrailingSlash) {
     exit(1);
   }
 
-  Path my_exe = Path::GetMainExecutable(TestMainArgv0, &ProgramTestStringArg1);
+  std::string my_exe =
+      sys::fs::getMainExecutable(TestMainArgv0, &ProgramTestStringArg1);
   const char *argv[] = {
     my_exe.c_str(),
-    "--gtest_filter=ProgramTest.CreateProcessTrailingSlashChild",
+    "--gtest_filter=ProgramTest.CreateProcessTrailingSlash",
     "-program-test-string-arg1", "has\\\\ trailing\\",
     "-program-test-string-arg2", "has\\\\ trailing\\",
-    0
+    nullptr
   };
 
   // Add LLVM_PROGRAM_TEST_CHILD to the environment of the child.
   std::vector<const char *> envp;
   CopyEnvironment(envp);
   envp.push_back("LLVM_PROGRAM_TEST_CHILD=1");
-  envp.push_back(0);
+  envp.push_back(nullptr);
 
   std::string error;
   bool ExecutionFailed;
@@ -79,12 +103,171 @@ TEST(ProgramTest, CreateProcessTrailingSlash) {
 #else
   StringRef nul("/dev/null");
 #endif
-  const StringRef *redirects[] = { &nul, &nul, 0 };
-  int rc = ExecuteAndWait(my_exe.str(), argv, &envp[0], redirects,
+  const StringRef *redirects[] = { &nul, &nul, nullptr };
+  int rc = ExecuteAndWait(my_exe, argv, &envp[0], redirects,
                           /*secondsToWait=*/ 10, /*memoryLimit=*/ 0, &error,
                           &ExecutionFailed);
   EXPECT_FALSE(ExecutionFailed) << error;
   EXPECT_EQ(0, rc);
 }
 
+TEST(ProgramTest, 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=ProgramTest.TestExecuteNoWait",
+    nullptr
+  };
+
+  // Add LLVM_PROGRAM_TEST_EXECUTE_NO_WAIT to the environment of the child.
+  std::vector<const char *> envp;
+  CopyEnvironment(envp);
+  envp.push_back("LLVM_PROGRAM_TEST_EXECUTE_NO_WAIT=1");
+  envp.push_back(nullptr);
+
+  std::string Error;
+  bool ExecutionFailed;
+  ProcessInfo PI1 = ExecuteNoWait(Executable, argv, &envp[0], 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, &envp[0], 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(ProgramTest, 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=ProgramTest.TestExecuteAndWaitTimeout",
+    nullptr
+  };
+
+  // Add LLVM_PROGRAM_TEST_TIMEOUT to the environment of the child.
+  std::vector<const char *> envp;
+  CopyEnvironment(envp);
+  envp.push_back("LLVM_PROGRAM_TEST_TIMEOUT=1");
+  envp.push_back(nullptr);
+
+  std::string Error;
+  bool ExecutionFailed;
+  int RetCode =
+      ExecuteAndWait(Executable, argv, &envp[0], 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()));
+}
+
 } // end anonymous namespace