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95 lines
3.0 KiB
C++
95 lines
3.0 KiB
C++
//===- raw_pwrite_stream_test.cpp - raw_pwrite_stream tests ---------------===//
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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 "gtest/gtest.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/FileUtilities.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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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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namespace {
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TEST(raw_pwrite_ostreamTest, TestSVector) {
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SmallVector<char, 0> Buffer;
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raw_svector_ostream OS(Buffer);
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OS << "abcd";
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StringRef Test = "test";
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OS.pwrite(Test.data(), Test.size(), 0);
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EXPECT_EQ(Test, OS.str());
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#ifdef GTEST_HAS_DEATH_TEST
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#ifndef NDEBUG
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EXPECT_DEATH(OS.pwrite("12345", 5, 0),
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"We don't support extending the stream");
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#endif
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#endif
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}
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#ifdef _WIN32
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#define setenv(name, var, ignore) _putenv_s(name, var)
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#endif
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TEST(raw_pwrite_ostreamTest, TestFD) {
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SmallString<64> Path;
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int FD;
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// If we want to clean up from a death test, we have to remove the file from
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// the parent process. Have the parent create the file, pass it via
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// environment variable to the child, let the child crash, and then remove it
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// in the parent.
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const char *ParentPath = getenv("RAW_PWRITE_TEST_FILE");
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if (ParentPath) {
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Path = ParentPath;
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ASSERT_NO_ERROR(sys::fs::openFileForRead(Path, FD));
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} else {
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ASSERT_NO_ERROR(sys::fs::createTemporaryFile("foo", "bar", FD, Path));
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setenv("RAW_PWRITE_TEST_FILE", Path.c_str(), true);
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}
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FileRemover Cleanup(Path);
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raw_fd_ostream OS(FD, true);
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OS << "abcd";
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StringRef Test = "test";
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OS.pwrite(Test.data(), Test.size(), 0);
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OS.pwrite(Test.data(), Test.size(), 0);
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#ifdef GTEST_HAS_DEATH_TEST
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#ifndef NDEBUG
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EXPECT_DEATH(OS.pwrite("12345", 5, 0),
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"We don't support extending the stream");
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#endif
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#endif
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}
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#ifdef LLVM_ON_UNIX
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TEST(raw_pwrite_ostreamTest, TestDevNull) {
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int FD;
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sys::fs::openFileForWrite("/dev/null", FD, sys::fs::F_None);
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raw_fd_ostream OS(FD, true);
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OS << "abcd";
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StringRef Test = "test";
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OS.pwrite(Test.data(), Test.size(), 0);
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OS.pwrite(Test.data(), Test.size(), 0);
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}
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#endif
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}
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