unittests/Support/Path.cpp

   1 //===- llvm/unittest/Support/Path.cpp - Path 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 "llvm/Support/FileSystem.h"
  11 #include "llvm/Support/PathV2.h"
  12 #include "llvm/Support/ErrorHandling.h"
  13
  14 #include "gtest/gtest.h"
  15
  16 using namespace llvm;
  17 using namespace llvm::sys;
  18
  19 namespace {
  20
  21 TEST(Support, Path) {
  22   SmallVector<StringRef, 40> paths;
  23   paths.push_back("");
  24   paths.push_back(".");
  25   paths.push_back("..");
  26   paths.push_back("foo");
  27   paths.push_back("/");
  28   paths.push_back("/foo");
  29   paths.push_back("foo/");
  30   paths.push_back("/foo/");
  31   paths.push_back("foo/bar");
  32   paths.push_back("/foo/bar");
  33   paths.push_back("//net");
  34   paths.push_back("//net/foo");
  35   paths.push_back("///foo///");
  36   paths.push_back("///foo///bar");
  37   paths.push_back("/.");
  38   paths.push_back("./");
  39   paths.push_back("/..");
  40   paths.push_back("../");
  41   paths.push_back("foo/.");
  42   paths.push_back("foo/..");
  43   paths.push_back("foo/./");
  44   paths.push_back("foo/./bar");
  45   paths.push_back("foo/..");
  46   paths.push_back("foo/../");
  47   paths.push_back("foo/../bar");
  48   paths.push_back("c:");
  49   paths.push_back("c:/");
  50   paths.push_back("c:foo");
  51   paths.push_back("c:/foo");
  52   paths.push_back("c:foo/");
  53   paths.push_back("c:/foo/");
  54   paths.push_back("c:/foo/bar");
  55   paths.push_back("prn:");
  56   paths.push_back("c:\\");
  57   paths.push_back("c:foo");
  58   paths.push_back("c:\\foo");
  59   paths.push_back("c:foo\\");
  60   paths.push_back("c:\\foo\\");
  61   paths.push_back("c:\\foo/");
  62   paths.push_back("c:/foo\\bar");
  63
  64   for (SmallVector<StringRef, 40>::const_iterator i = paths.begin(),
  65                                                   e = paths.end();
  66                                                   i != e;
  67                                                   ++i) {
  68     for (sys::path::const_iterator ci = sys::path::begin(*i),
  69                                    ce = sys::path::end(*i);
  70                                    ci != ce;
  71                                    ++ci) {
  72       ASSERT_FALSE(ci->empty());
  73     }
  74
  75 #if 0 // Valgrind is whining about this.
  76     outs() << "    Reverse Iteration: [";
  77     for (sys::path::reverse_iterator ci = sys::path::rbegin(*i),
  78                                      ce = sys::path::rend(*i);
  79                                      ci != ce;
  80                                      ++ci) {
  81       outs() << *ci << ',';
  82     }
  83     outs() << "]\n";
  84 #endif
  85
  86     path::has_root_path(*i);
  87     path::root_path(*i);
  88     path::has_root_name(*i);
  89     path::root_name(*i);
  90     path::has_root_directory(*i);
  91     path::root_directory(*i);
  92     path::has_parent_path(*i);
  93     path::parent_path(*i);
  94     path::has_filename(*i);
  95     path::filename(*i);
  96     path::has_stem(*i);
  97     path::stem(*i);
  98     path::has_extension(*i);
  99     path::extension(*i);
 100     path::is_absolute(*i);
 101     path::is_relative(*i);
 102
 103     SmallString<16> temp_store;
 104     temp_store = *i;
 105     ASSERT_FALSE(fs::make_absolute(temp_store));
 106     temp_store = *i;
 107     path::remove_filename(temp_store);
 108
 109     temp_store = *i;
 110     path::replace_extension(temp_store, "ext");
 111     StringRef filename(temp_store.begin(), temp_store.size()), stem, ext;
 112     stem = path::stem(filename);
 113     ext  = path::extension(filename);
 114     EXPECT_EQ(*(--sys::path::end(filename)), (stem + ext).str());
 115
 116     path::native(*i, temp_store);
 117
 118     outs().flush();
 119   }
 120
 121   // Create a temp file.
 122   int FileDescriptor;
 123   SmallString<64> TempPath;
 124   ASSERT_FALSE(fs::unique_file("%%-%%-%%-%%.temp", FileDescriptor, TempPath));
 125
 126   // Make sure it exists.
 127   bool TempFileExists;
 128   ASSERT_FALSE(sys::fs::exists(Twine(TempPath), TempFileExists));
 129   EXPECT_TRUE(TempFileExists);
 130
 131   // Create another temp tile.
 132   int FD2;
 133   SmallString<64> TempPath2;
 134   ASSERT_FALSE(fs::unique_file("%%-%%-%%-%%.temp", FD2, TempPath2));
 135   ASSERT_NE(TempPath.str(), TempPath2.str());
 136
 137   // Try to copy the first to the second.
 138   EXPECT_EQ(fs::copy_file(Twine(TempPath), Twine(TempPath2)), errc::file_exists);
 139
 140   ::close(FD2);
 141   // Try again with the proper options.
 142   ASSERT_FALSE(fs::copy_file(Twine(TempPath), Twine(TempPath2),
 143                              fs::copy_option::overwrite_if_exists));
 144   // Remove Temp2.
 145   ASSERT_FALSE(fs::remove(Twine(TempPath2), TempFileExists));
 146   EXPECT_TRUE(TempFileExists);
 147
 148   // Make sure Temp2 doesn't exist.
 149   ASSERT_FALSE(fs::exists(Twine(TempPath2), TempFileExists));
 150   EXPECT_FALSE(TempFileExists);
 151
 152   // Create a hard link to Temp1.
 153   ASSERT_FALSE(fs::create_hard_link(Twine(TempPath), Twine(TempPath2)));
 154   bool equal;
 155   ASSERT_FALSE(fs::equivalent(Twine(TempPath), Twine(TempPath2), equal));
 156   EXPECT_TRUE(equal);
 157
 158   // Remove Temp1.
 159   ::close(FileDescriptor);
 160   ASSERT_FALSE(fs::remove(Twine(TempPath), TempFileExists));
 161   EXPECT_TRUE(TempFileExists);
 162
 163   // Remove the hard link.
 164   ASSERT_FALSE(fs::remove(Twine(TempPath2), TempFileExists));
 165   EXPECT_TRUE(TempFileExists);
 166
 167   // Make sure Temp1 doesn't exist.
 168   ASSERT_FALSE(fs::exists(Twine(TempPath), TempFileExists));
 169   EXPECT_FALSE(TempFileExists);
 170
 171   // I've yet to do directory iteration on Unix.
 172 #ifdef LLVM_ON_WIN32
 173   error_code ec;
 174   for (fs::directory_iterator i(".", ec), e; i != e; i.increment(ec)) {
 175     if (ec) {
 176       errs() << ec.message() << '\n';
 177       errs().flush();
 178       report_fatal_error("Directory iteration failed!");
 179     }
 180   }
 181 #endif
 182 }
 183
 184 } // anonymous namespace