1 //===- raw_pwrite_stream_test.cpp - raw_pwrite_stream tests ---------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "gtest/gtest.h" 11 #include "llvm/ADT/SmallString.h" 12 #include "llvm/Support/FileSystem.h" 13 #include "llvm/Support/raw_ostream.h" 14 15 using namespace llvm; 16 17 namespace { 18 19 TEST(raw_pwrite_ostreamTest, TestSVector) { 20 SmallVector<char, 0> Buffer; 21 raw_svector_ostream OS(Buffer); 22 OS << "abcd"; 23 StringRef Test = "test"; 24 OS.pwrite(Test.data(), Test.size(), 0); 25 EXPECT_EQ(Test, OS.str()); 26 27 #ifdef GTEST_HAS_DEATH_TEST 28 #ifndef NDEBUG 29 EXPECT_DEATH(OS.pwrite("12345", 5, 0), 30 "We don't support extending the stream"); 31 #endif 32 #endif 33 } 34 35 TEST(raw_pwrite_ostreamTest, TestFD) { 36 SmallString<64> Path; 37 int FD; 38 sys::fs::createTemporaryFile("foo", "bar", FD, Path); 39 raw_fd_ostream OS(FD, true); 40 OS << "abcd"; 41 StringRef Test = "test"; 42 OS.pwrite(Test.data(), Test.size(), 0); 43 OS.pwrite(Test.data(), Test.size(), 0); 44 45 #ifdef GTEST_HAS_DEATH_TEST 46 #ifndef NDEBUG 47 EXPECT_DEATH(OS.pwrite("12345", 5, 0), 48 "We don't support extending the stream"); 49 #endif 50 #endif 51 } 52 53 #ifdef LLVM_ON_UNIX 54 TEST(raw_pwrite_ostreamTest, TestDevNull) { 55 int FD; 56 sys::fs::openFileForWrite("/dev/null", FD, sys::fs::F_None); 57 raw_fd_ostream OS(FD, true); 58 OS << "abcd"; 59 StringRef Test = "test"; 60 OS.pwrite(Test.data(), Test.size(), 0); 61 OS.pwrite(Test.data(), Test.size(), 0); 62 } 63 #endif 64 } 65
