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