X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=unittests%2FSupport%2FPath.cpp;h=9a68e08f9c9cb003dfb240fc5e8110a99192ad11;hb=11eb51e23935e22e1cb7b346c45713e8c9169c84;hp=132d43950b3199a53f27e3f2f6804e2f687f4422;hpb=2558516859ac52a17c85afff01073303bd522979;p=oota-llvm.git

diff --git a/unittests/Support/Path.cpp b/unittests/Support/Path.cpp
index 132d43950b3..9a68e08f9c9 100644
--- a/unittests/Support/Path.cpp
+++ b/unittests/Support/Path.cpp
@@ -7,25 +7,40 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/PathV2.h"
+#include "llvm/Support/Path.h"
 #include "llvm/Support/ErrorHandling.h"
-
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/raw_ostream.h"
 #include "gtest/gtest.h"
 
 using namespace llvm;
 using namespace llvm::sys;
 
 #define ASSERT_NO_ERROR(x) \
-  if (error_code ec = x) { \
-    SmallString<128> Message; \
-    GTEST_FATAL_FAILURE_((Twine(#x) + ": did not return errc::success.\n" + \
-                         "error message: " + \
-                      x.message()).toNullTerminatedStringRef(Message).data()); \
+  if (error_code ASSERT_NO_ERROR_ec = x) { \
+    SmallString<128> MessageStorage; \
+    raw_svector_ostream Message(MessageStorage); \
+    Message << #x ": did not return errc::success.\n" \
+            << "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
+            << "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
+    GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
   } else {}
 
 namespace {
 
+TEST(is_separator, Works) {
+  EXPECT_TRUE(path::is_separator('/'));
+  EXPECT_FALSE(path::is_separator('\0'));
+  EXPECT_FALSE(path::is_separator('-'));
+  EXPECT_FALSE(path::is_separator(' '));
+
+#ifdef LLVM_ON_WIN32
+  EXPECT_TRUE(path::is_separator('\\'));
+#else
+  EXPECT_FALSE(path::is_separator('\\'));
+#endif
+}
+
 TEST(Support, Path) {
   SmallVector<StringRef, 40> paths;
   paths.push_back("");
@@ -132,25 +147,61 @@ protected:
   SmallString<128> TestDirectory;
 
   virtual void SetUp() {
-    /*int fd;
     ASSERT_NO_ERROR(
-      fs::unique_file("%%-%%-%%-%%/test-directory.anchor", fd, TestDirectory));
+        fs::createUniqueDirectory("file-system-test", TestDirectory));
     // We don't care about this specific file.
-    ::close(fd);*/
+    errs() << "Test Directory: " << TestDirectory << '\n';
+    errs().flush();
   }
 
   virtual void TearDown() {
-    /*uint32_t removed;
-    ASSERT_NO_ERROR(fs::remove_all(TestDirectory.str(), removed));*/
+    uint32_t removed;
+    ASSERT_NO_ERROR(fs::remove_all(TestDirectory.str(), removed));
   }
 };
 
+TEST_F(FileSystemTest, Unique) {
+  // Create a temp file.
+  int FileDescriptor;
+  SmallString<64> TempPath;
+  ASSERT_NO_ERROR(
+      fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
+
+  // The same file should return an identical unique id.
+  uint64_t F1, F2;
+  ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F1));
+  ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath), F2));
+  ASSERT_EQ(F1, F2);
+
+  // Different files should return different unique ids.
+  int FileDescriptor2;
+  SmallString<64> TempPath2;
+  ASSERT_NO_ERROR(
+      fs::createTemporaryFile("prefix", "temp", FileDescriptor2, TempPath2));
+
+  uint64_t D;
+  ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D));
+  ASSERT_NE(D, F1);
+  ::close(FileDescriptor2);
+
+  ASSERT_NO_ERROR(fs::remove(Twine(TempPath2)));
+
+  // Two paths representing the same file on disk should still provide the
+  // same unique id.  We can test this by making a hard link.
+  ASSERT_NO_ERROR(fs::create_hard_link(Twine(TempPath), Twine(TempPath2)));
+  uint64_t D2;
+  ASSERT_NO_ERROR(fs::getUniqueID(Twine(TempPath2), D2));
+  ASSERT_EQ(D2, F1);
+
+  ::close(FileDescriptor);
+}
+
 TEST_F(FileSystemTest, TempFiles) {
   // Create a temp file.
   int FileDescriptor;
   SmallString<64> TempPath;
   ASSERT_NO_ERROR(
-    fs::unique_file("%%-%%-%%-%%.temp", FileDescriptor, TempPath));
+      fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
 
   // Make sure it exists.
   bool TempFileExists;
@@ -160,9 +211,14 @@ TEST_F(FileSystemTest, TempFiles) {
   // Create another temp tile.
   int FD2;
   SmallString<64> TempPath2;
-  ASSERT_NO_ERROR(fs::unique_file("%%-%%-%%-%%.temp", FD2, TempPath2));
+  ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "temp", FD2, TempPath2));
   ASSERT_NE(TempPath.str(), TempPath2.str());
 
+  fs::file_status A, B;
+  ASSERT_NO_ERROR(fs::status(Twine(TempPath), A));
+  ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B));
+  EXPECT_FALSE(fs::equivalent(A, B));
+
   // Try to copy the first to the second.
   EXPECT_EQ(
     fs::copy_file(Twine(TempPath), Twine(TempPath2)), errc::file_exists);
@@ -184,6 +240,9 @@ TEST_F(FileSystemTest, TempFiles) {
   bool equal;
   ASSERT_NO_ERROR(fs::equivalent(Twine(TempPath), Twine(TempPath2), equal));
   EXPECT_TRUE(equal);
+  ASSERT_NO_ERROR(fs::status(Twine(TempPath), A));
+  ASSERT_NO_ERROR(fs::status(Twine(TempPath2), B));
+  EXPECT_TRUE(fs::equivalent(A, B));
 
   // Remove Temp1.
   ::close(FileDescriptor);
@@ -197,17 +256,159 @@ TEST_F(FileSystemTest, TempFiles) {
   // Make sure Temp1 doesn't exist.
   ASSERT_NO_ERROR(fs::exists(Twine(TempPath), TempFileExists));
   EXPECT_FALSE(TempFileExists);
+
+#ifdef LLVM_ON_WIN32
+  // Path name > 260 chars should get an error.
+  const char *Path270 =
+    "abcdefghijklmnopqrstuvwxyz9abcdefghijklmnopqrstuvwxyz8"
+    "abcdefghijklmnopqrstuvwxyz7abcdefghijklmnopqrstuvwxyz6"
+    "abcdefghijklmnopqrstuvwxyz5abcdefghijklmnopqrstuvwxyz4"
+    "abcdefghijklmnopqrstuvwxyz3abcdefghijklmnopqrstuvwxyz2"
+    "abcdefghijklmnopqrstuvwxyz1abcdefghijklmnopqrstuvwxyz0";
+  EXPECT_EQ(fs::createUniqueFile(Twine(Path270), FileDescriptor, TempPath),
+            windows_error::path_not_found);
+#endif
 }
 
 TEST_F(FileSystemTest, DirectoryIteration) {
   error_code ec;
-  for (fs::directory_iterator i(".", ec), e; i != e; i.increment(ec)) {
-    if (ec) {
-      errs() << ec.message() << '\n';
-      errs().flush();
-      report_fatal_error("Directory iteration failed!");
+  for (fs::directory_iterator i(".", ec), e; i != e; i.increment(ec))
+    ASSERT_NO_ERROR(ec);
+
+  // Create a known hierarchy to recurse over.
+  bool existed;
+  ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory)
+                  + "/recursive/a0/aa1", existed));
+  ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory)
+                  + "/recursive/a0/ab1", existed));
+  ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory)
+                  + "/recursive/dontlookhere/da1", existed));
+  ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory)
+                  + "/recursive/z0/za1", existed));
+  ASSERT_NO_ERROR(fs::create_directories(Twine(TestDirectory)
+                  + "/recursive/pop/p1", existed));
+  typedef std::vector<std::string> v_t;
+  v_t visited;
+  for (fs::recursive_directory_iterator i(Twine(TestDirectory)
+         + "/recursive", ec), e; i != e; i.increment(ec)){
+    ASSERT_NO_ERROR(ec);
+    if (path::filename(i->path()) == "p1") {
+      i.pop();
+      // FIXME: recursive_directory_iterator should be more robust.
+      if (i == e) break;
     }
+    if (path::filename(i->path()) == "dontlookhere")
+      i.no_push();
+    visited.push_back(path::filename(i->path()));
   }
+  v_t::const_iterator a0 = std::find(visited.begin(), visited.end(), "a0");
+  v_t::const_iterator aa1 = std::find(visited.begin(), visited.end(), "aa1");
+  v_t::const_iterator ab1 = std::find(visited.begin(), visited.end(), "ab1");
+  v_t::const_iterator dontlookhere = std::find(visited.begin(), visited.end(),
+                                               "dontlookhere");
+  v_t::const_iterator da1 = std::find(visited.begin(), visited.end(), "da1");
+  v_t::const_iterator z0 = std::find(visited.begin(), visited.end(), "z0");
+  v_t::const_iterator za1 = std::find(visited.begin(), visited.end(), "za1");
+  v_t::const_iterator pop = std::find(visited.begin(), visited.end(), "pop");
+  v_t::const_iterator p1 = std::find(visited.begin(), visited.end(), "p1");
+
+  // Make sure that each path was visited correctly.
+  ASSERT_NE(a0, visited.end());
+  ASSERT_NE(aa1, visited.end());
+  ASSERT_NE(ab1, visited.end());
+  ASSERT_NE(dontlookhere, visited.end());
+  ASSERT_EQ(da1, visited.end()); // Not visited.
+  ASSERT_NE(z0, visited.end());
+  ASSERT_NE(za1, visited.end());
+  ASSERT_NE(pop, visited.end());
+  ASSERT_EQ(p1, visited.end()); // Not visited.
+
+  // Make sure that parents were visited before children. No other ordering
+  // guarantees can be made across siblings.
+  ASSERT_LT(a0, aa1);
+  ASSERT_LT(a0, ab1);
+  ASSERT_LT(z0, za1);
 }
 
+const char elf[] = {0x7f, 'E', 'L', 'F', 1, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
+
+TEST_F(FileSystemTest, Magic) {
+  struct type {
+    const char *filename;
+    const char *magic_str;
+    size_t magic_str_len;
+    fs::file_magic magic;
+  } types [] = {
+    {"magic.archive", "!<arch>\x0A", 8, fs::file_magic::archive},
+    {"magic.elf", elf, sizeof(elf),
+     fs::file_magic::elf_relocatable}
+  };
+
+  // Create some files filled with magic.
+  for (type *i = types, *e = types + (sizeof(types) / sizeof(type)); i != e;
+                                                                     ++i) {
+    SmallString<128> file_pathname(TestDirectory);
+    path::append(file_pathname, i->filename);
+    std::string ErrMsg;
+    raw_fd_ostream file(file_pathname.c_str(), ErrMsg,
+                        raw_fd_ostream::F_Binary);
+    ASSERT_FALSE(file.has_error());
+    StringRef magic(i->magic_str, i->magic_str_len);
+    file << magic;
+    file.close();
+    bool res = false;
+    ASSERT_NO_ERROR(fs::has_magic(file_pathname.c_str(), magic, res));
+    EXPECT_TRUE(res);
+    EXPECT_EQ(i->magic, fs::identify_magic(magic));
+  }
+}
+
+TEST_F(FileSystemTest, FileMapping) {
+  // Create a temp file.
+  int FileDescriptor;
+  SmallString<64> TempPath;
+  ASSERT_NO_ERROR(
+      fs::createTemporaryFile("prefix", "temp", FileDescriptor, TempPath));
+  // Map in temp file and add some content
+  error_code EC;
+  StringRef Val("hello there");
+  {
+    fs::mapped_file_region mfr(FileDescriptor,
+                               true,
+                               fs::mapped_file_region::readwrite,
+                               4096,
+                               0,
+                               EC);
+    ASSERT_NO_ERROR(EC);
+    std::copy(Val.begin(), Val.end(), mfr.data());
+    // Explicitly add a 0.
+    mfr.data()[Val.size()] = 0;
+    // Unmap temp file
+  }
+  
+  // Map it back in read-only
+  fs::mapped_file_region mfr(Twine(TempPath),
+                             fs::mapped_file_region::readonly,
+                             0,
+                             0,
+                             EC);
+  ASSERT_NO_ERROR(EC);
+  
+  // Verify content
+  EXPECT_EQ(StringRef(mfr.const_data()), Val);
+  
+  // Unmap temp file
+
+#if LLVM_HAS_RVALUE_REFERENCES
+  fs::mapped_file_region m(Twine(TempPath),
+                             fs::mapped_file_region::readonly,
+                             0,
+                             0,
+                             EC);
+  ASSERT_NO_ERROR(EC);
+  const char *Data = m.const_data();
+  fs::mapped_file_region mfrrv(llvm_move(m));
+  EXPECT_EQ(mfrrv.const_data(), Data);
+#endif
+}
 } // anonymous namespace