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2f6a8ddfe8
This breaks the OpenFlags enumeration into two separate enumerations: OpenFlags and CreationDisposition. The first controls the behavior of the API depending on whether or not the target file already exists, and is not a flags-based enum. The second controls more flags-like values. This yields a more easy to understand API, while also allowing flags to be passed to the openForRead api, where most of the values didn't make sense before. This also makes the apis more testable as it becomes easy to enumerate all the configurations which make sense, so I've added many new tests to exercise all the different values. llvm-svn: 334221
96 lines
3.0 KiB
C++
96 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 "llvm/ADT/SmallString.h"
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#include "llvm/Config/llvm-config.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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#include "gtest/gtest.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::CD_OpenExisting);
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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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