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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291916 91177308-0d34-0410-b5e6-96231b3b80d8
357 lines
11 KiB
C++
357 lines
11 KiB
C++
//===- unittest/Support/ProgramTest.cpp -----------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/ConvertUTF.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Program.h"
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#include "gtest/gtest.h"
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#include <stdlib.h>
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#if defined(__APPLE__)
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# include <crt_externs.h>
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#elif !defined(_MSC_VER)
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// Forward declare environ in case it's not provided by stdlib.h.
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extern char **environ;
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#endif
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#if defined(LLVM_ON_UNIX)
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#include <unistd.h>
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void sleep_for(unsigned int seconds) {
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sleep(seconds);
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}
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#elif defined(LLVM_ON_WIN32)
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#include <windows.h>
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void sleep_for(unsigned int seconds) {
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Sleep(seconds * 1000);
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}
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#else
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#error sleep_for is not implemented on your platform.
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#endif
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#define ASSERT_NO_ERROR(x) \
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if (std::error_code ASSERT_NO_ERROR_ec = x) { \
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SmallString<128> MessageStorage; \
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raw_svector_ostream Message(MessageStorage); \
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Message << #x ": did not return errc::success.\n" \
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<< "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
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<< "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
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GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
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} else { \
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}
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// From TestMain.cpp.
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extern const char *TestMainArgv0;
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namespace {
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using namespace llvm;
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using namespace sys;
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static cl::opt<std::string>
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ProgramTestStringArg1("program-test-string-arg1");
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static cl::opt<std::string>
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ProgramTestStringArg2("program-test-string-arg2");
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class ProgramEnvTest : public testing::Test {
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std::vector<const char *> EnvTable;
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std::vector<std::string> EnvStorage;
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protected:
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void SetUp() override {
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auto EnvP = [] {
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#if defined(LLVM_ON_WIN32)
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_wgetenv(L"TMP"); // Populate _wenviron, initially is null
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return _wenviron;
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#elif defined(__APPLE__)
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return *_NSGetEnviron();
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#else
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return environ;
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#endif
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}();
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ASSERT_TRUE(EnvP);
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auto prepareEnvVar = [this](decltype(*EnvP) Var) {
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#if defined(LLVM_ON_WIN32)
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// On Windows convert UTF16 encoded variable to UTF8
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auto Len = wcslen(Var);
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ArrayRef<char> Ref{reinterpret_cast<char const *>(Var),
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Len * sizeof(*Var)};
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EnvStorage.emplace_back();
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auto convStatus = convertUTF16ToUTF8String(Ref, EnvStorage.back());
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EXPECT_TRUE(convStatus);
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return EnvStorage.back().c_str();
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#else
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(void)this;
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return Var;
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#endif
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};
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while (*EnvP != nullptr) {
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EnvTable.emplace_back(prepareEnvVar(*EnvP));
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++EnvP;
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}
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}
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void TearDown() override {
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EnvTable.clear();
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EnvStorage.clear();
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}
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void addEnvVar(const char *Var) {
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ASSERT_TRUE(EnvTable.empty() || EnvTable.back()) << "Env table sealed";
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EnvTable.emplace_back(Var);
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}
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const char **getEnviron() {
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if (EnvTable.back() != nullptr)
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EnvTable.emplace_back(nullptr); // Seal table.
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return &EnvTable[0];
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}
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};
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#ifdef LLVM_ON_WIN32
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TEST_F(ProgramEnvTest, CreateProcessLongPath) {
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if (getenv("LLVM_PROGRAM_TEST_LONG_PATH"))
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exit(0);
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// getMainExecutable returns an absolute path; prepend the long-path prefix.
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std::string MyAbsExe =
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sys::fs::getMainExecutable(TestMainArgv0, &ProgramTestStringArg1);
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std::string MyExe;
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if (!StringRef(MyAbsExe).startswith("\\\\?\\"))
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MyExe.append("\\\\?\\");
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MyExe.append(MyAbsExe);
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const char *ArgV[] = {
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MyExe.c_str(),
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"--gtest_filter=ProgramEnvTest.CreateProcessLongPath",
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nullptr
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};
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// Add LLVM_PROGRAM_TEST_LONG_PATH to the environment of the child.
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addEnvVar("LLVM_PROGRAM_TEST_LONG_PATH=1");
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// Redirect stdout to a long path.
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SmallString<128> TestDirectory;
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ASSERT_NO_ERROR(
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fs::createUniqueDirectory("program-redirect-test", TestDirectory));
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SmallString<256> LongPath(TestDirectory);
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LongPath.push_back('\\');
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// MAX_PATH = 260
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LongPath.append(260 - TestDirectory.size(), 'a');
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StringRef LongPathRef(LongPath);
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std::string Error;
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bool ExecutionFailed;
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const StringRef *Redirects[] = { nullptr, &LongPathRef, nullptr };
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int RC = ExecuteAndWait(MyExe, ArgV, getEnviron(), Redirects,
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/*secondsToWait=*/ 10, /*memoryLimit=*/ 0, &Error,
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&ExecutionFailed);
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EXPECT_FALSE(ExecutionFailed) << Error;
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EXPECT_EQ(0, RC);
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// Remove the long stdout.
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ASSERT_NO_ERROR(fs::remove(Twine(LongPath)));
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ASSERT_NO_ERROR(fs::remove(Twine(TestDirectory)));
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}
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#endif
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TEST_F(ProgramEnvTest, CreateProcessTrailingSlash) {
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if (getenv("LLVM_PROGRAM_TEST_CHILD")) {
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if (ProgramTestStringArg1 == "has\\\\ trailing\\" &&
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ProgramTestStringArg2 == "has\\\\ trailing\\") {
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exit(0); // Success! The arguments were passed and parsed.
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}
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exit(1);
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}
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std::string my_exe =
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sys::fs::getMainExecutable(TestMainArgv0, &ProgramTestStringArg1);
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const char *argv[] = {
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my_exe.c_str(),
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"--gtest_filter=ProgramEnvTest.CreateProcessTrailingSlash",
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"-program-test-string-arg1", "has\\\\ trailing\\",
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"-program-test-string-arg2", "has\\\\ trailing\\",
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nullptr
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};
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// Add LLVM_PROGRAM_TEST_CHILD to the environment of the child.
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addEnvVar("LLVM_PROGRAM_TEST_CHILD=1");
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std::string error;
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bool ExecutionFailed;
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// Redirect stdout and stdin to NUL, but let stderr through.
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#ifdef LLVM_ON_WIN32
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StringRef nul("NUL");
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#else
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StringRef nul("/dev/null");
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#endif
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const StringRef *redirects[] = { &nul, &nul, nullptr };
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int rc = ExecuteAndWait(my_exe, argv, getEnviron(), redirects,
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/*secondsToWait=*/ 10, /*memoryLimit=*/ 0, &error,
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&ExecutionFailed);
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EXPECT_FALSE(ExecutionFailed) << error;
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EXPECT_EQ(0, rc);
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}
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TEST_F(ProgramEnvTest, TestExecuteNoWait) {
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using namespace llvm::sys;
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if (getenv("LLVM_PROGRAM_TEST_EXECUTE_NO_WAIT")) {
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sleep_for(/*seconds*/ 1);
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exit(0);
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}
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std::string Executable =
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sys::fs::getMainExecutable(TestMainArgv0, &ProgramTestStringArg1);
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const char *argv[] = {
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Executable.c_str(),
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"--gtest_filter=ProgramEnvTest.TestExecuteNoWait",
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nullptr
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};
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// Add LLVM_PROGRAM_TEST_EXECUTE_NO_WAIT to the environment of the child.
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addEnvVar("LLVM_PROGRAM_TEST_EXECUTE_NO_WAIT=1");
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std::string Error;
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bool ExecutionFailed;
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ProcessInfo PI1 = ExecuteNoWait(Executable, argv, getEnviron(), nullptr, 0,
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&Error, &ExecutionFailed);
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ASSERT_FALSE(ExecutionFailed) << Error;
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ASSERT_NE(PI1.Pid, ProcessInfo::InvalidPid) << "Invalid process id";
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unsigned LoopCount = 0;
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// Test that Wait() with WaitUntilTerminates=true works. In this case,
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// LoopCount should only be incremented once.
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while (true) {
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++LoopCount;
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ProcessInfo WaitResult = llvm::sys::Wait(PI1, 0, true, &Error);
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ASSERT_TRUE(Error.empty());
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if (WaitResult.Pid == PI1.Pid)
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break;
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}
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EXPECT_EQ(LoopCount, 1u) << "LoopCount should be 1";
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ProcessInfo PI2 = ExecuteNoWait(Executable, argv, getEnviron(), nullptr, 0,
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&Error, &ExecutionFailed);
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ASSERT_FALSE(ExecutionFailed) << Error;
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ASSERT_NE(PI2.Pid, ProcessInfo::InvalidPid) << "Invalid process id";
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// Test that Wait() with SecondsToWait=0 performs a non-blocking wait. In this
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// cse, LoopCount should be greater than 1 (more than one increment occurs).
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while (true) {
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++LoopCount;
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ProcessInfo WaitResult = llvm::sys::Wait(PI2, 0, false, &Error);
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ASSERT_TRUE(Error.empty());
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if (WaitResult.Pid == PI2.Pid)
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break;
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}
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ASSERT_GT(LoopCount, 1u) << "LoopCount should be >1";
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}
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TEST_F(ProgramEnvTest, TestExecuteAndWaitTimeout) {
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using namespace llvm::sys;
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if (getenv("LLVM_PROGRAM_TEST_TIMEOUT")) {
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sleep_for(/*seconds*/ 10);
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exit(0);
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}
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std::string Executable =
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sys::fs::getMainExecutable(TestMainArgv0, &ProgramTestStringArg1);
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const char *argv[] = {
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Executable.c_str(),
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"--gtest_filter=ProgramEnvTest.TestExecuteAndWaitTimeout",
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nullptr
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};
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// Add LLVM_PROGRAM_TEST_TIMEOUT to the environment of the child.
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addEnvVar("LLVM_PROGRAM_TEST_TIMEOUT=1");
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std::string Error;
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bool ExecutionFailed;
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int RetCode =
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ExecuteAndWait(Executable, argv, getEnviron(), nullptr, /*secondsToWait=*/1, 0,
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&Error, &ExecutionFailed);
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ASSERT_EQ(-2, RetCode);
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}
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TEST(ProgramTest, TestExecuteNegative) {
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std::string Executable = "i_dont_exist";
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const char *argv[] = { Executable.c_str(), nullptr };
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{
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std::string Error;
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bool ExecutionFailed;
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int RetCode = ExecuteAndWait(Executable, argv, nullptr, nullptr, 0, 0,
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&Error, &ExecutionFailed);
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ASSERT_TRUE(RetCode < 0) << "On error ExecuteAndWait should return 0 or "
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"positive value indicating the result code";
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ASSERT_TRUE(ExecutionFailed);
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ASSERT_FALSE(Error.empty());
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}
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{
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std::string Error;
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bool ExecutionFailed;
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ProcessInfo PI = ExecuteNoWait(Executable, argv, nullptr, nullptr, 0,
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&Error, &ExecutionFailed);
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ASSERT_EQ(PI.Pid, ProcessInfo::InvalidPid)
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<< "On error ExecuteNoWait should return an invalid ProcessInfo";
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ASSERT_TRUE(ExecutionFailed);
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ASSERT_FALSE(Error.empty());
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}
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}
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#ifdef LLVM_ON_WIN32
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const char utf16le_text[] =
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"\x6c\x00\x69\x00\x6e\x00\x67\x00\xfc\x00\x69\x00\xe7\x00\x61\x00";
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const char utf16be_text[] =
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"\x00\x6c\x00\x69\x00\x6e\x00\x67\x00\xfc\x00\x69\x00\xe7\x00\x61";
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#endif
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const char utf8_text[] = "\x6c\x69\x6e\x67\xc3\xbc\x69\xc3\xa7\x61";
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TEST(ProgramTest, TestWriteWithSystemEncoding) {
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SmallString<128> TestDirectory;
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ASSERT_NO_ERROR(fs::createUniqueDirectory("program-test", TestDirectory));
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errs() << "Test Directory: " << TestDirectory << '\n';
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errs().flush();
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SmallString<128> file_pathname(TestDirectory);
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path::append(file_pathname, "international-file.txt");
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// Only on Windows we should encode in UTF16. For other systems, use UTF8
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ASSERT_NO_ERROR(sys::writeFileWithEncoding(file_pathname.c_str(), utf8_text,
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sys::WEM_UTF16));
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int fd = 0;
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ASSERT_NO_ERROR(fs::openFileForRead(file_pathname.c_str(), fd));
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#if defined(LLVM_ON_WIN32)
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char buf[18];
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ASSERT_EQ(::read(fd, buf, 18), 18);
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if (strncmp(buf, "\xfe\xff", 2) == 0) { // UTF16-BE
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ASSERT_EQ(strncmp(&buf[2], utf16be_text, 16), 0);
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} else if (strncmp(buf, "\xff\xfe", 2) == 0) { // UTF16-LE
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ASSERT_EQ(strncmp(&buf[2], utf16le_text, 16), 0);
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} else {
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FAIL() << "Invalid BOM in UTF-16 file";
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}
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#else
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char buf[10];
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ASSERT_EQ(::read(fd, buf, 10), 10);
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ASSERT_EQ(strncmp(buf, utf8_text, 10), 0);
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#endif
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::close(fd);
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ASSERT_NO_ERROR(fs::remove(file_pathname.str()));
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ASSERT_NO_ERROR(fs::remove(TestDirectory.str()));
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}
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} // end anonymous namespace
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