From 5b1c20f2315cd7fc624ffd31abdcc03b409bfcb2 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Sat, 2 Jul 2016 17:21:54 +0300
Subject: Add cpfile()

---
 tests/cpfile/buildfile  |   7 ++
 tests/cpfile/driver.cxx | 182 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 189 insertions(+)
 create mode 100644 tests/cpfile/buildfile
 create mode 100644 tests/cpfile/driver.cxx

(limited to 'tests/cpfile')

diff --git a/tests/cpfile/buildfile b/tests/cpfile/buildfile
new file mode 100644
index 0000000..7d02738
--- /dev/null
+++ b/tests/cpfile/buildfile
@@ -0,0 +1,7 @@
+# file      : tests/cpfile/buildfile
+# copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
+# license   : MIT; see accompanying LICENSE file
+
+exe{driver}: cxx{driver} ../../butl/lib{butl}
+
+include ../../butl/
diff --git a/tests/cpfile/driver.cxx b/tests/cpfile/driver.cxx
new file mode 100644
index 0000000..669ac26
--- /dev/null
+++ b/tests/cpfile/driver.cxx
@@ -0,0 +1,182 @@
+// file      : tests/cpfile/driver.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#include <string>
+#include <cassert>
+#include <fstream>
+#include <system_error>
+
+#include <butl/path>
+#include <butl/filesystem>
+
+using namespace std;
+using namespace butl;
+
+static const char text1[] = "ABCDEF\nXYZ";
+static const char text2[] = "12345\nDEF";
+static const char text3[] = "XAB\r\n9";
+
+static string
+from_file (const path& f)
+{
+  ifstream ifs;
+  ifs.exceptions (fstream::badbit | fstream::failbit);
+  ifs.open (f.string (), ios::binary);
+
+  string s;
+  getline (ifs, s, '\0');
+  return s;
+}
+
+static void
+to_file (const path& f, const char* s)
+{
+  ofstream ofs;
+  ofs.exceptions (fstream::badbit | fstream::failbit);
+  ofs.open (f.string (), ios::binary);
+  ofs << s;
+}
+
+int
+main ()
+{
+  dir_path td (dir_path::temp_directory () / dir_path ("butl-cpfile"));
+
+  // Recreate the temporary directory (that possibly exists from the previous
+  // faulty run) for the test files. Delete the directory only if the test
+  // succeeds to simplify the failure research.
+  //
+  try_rmdir_r (td);
+  assert (try_mkdir (td) == mkdir_status::success);
+
+  path from (td / path ("from"));
+  to_file (from, text1);
+
+  permissions p (path_permissions (from));
+  path_permissions (from, permissions::ru | permissions::xu);
+
+  // Check that content and permissions of newly created destination file are
+  // the same as that ones of the source file.
+  //
+  path to (td / path ("to"));
+  cpfile (from, to, cpflags::none);
+  assert (from_file (to) == text1);
+  assert (path_permissions (to) == path_permissions (from));
+
+  // Check that permissions of an existent destination file stays intact if
+  // their overwrite is not requested.
+  //
+  path_permissions (to, p);
+  cpfile (from, to, cpflags::overwrite_content);
+  assert (from_file (to) == text1);
+  assert (path_permissions (to) == p);
+
+  // Check that permissions of an existent destination file get overwritten if
+  // requested.
+  //
+  cpfile (
+    from, to, cpflags::overwrite_content | cpflags::overwrite_permissions);
+
+  assert (from_file (to) == text1);
+  assert (path_permissions (to) == path_permissions (from));
+
+  path_permissions (to, p);
+  path_permissions (from, p);
+
+  try
+  {
+    cpfile (from, to, cpflags::none);
+    assert (false);
+  }
+  catch (const system_error&)
+  {
+  }
+
+  // Copy to the directory.
+  //
+  dir_path sd (td / dir_path ("sub"));
+  assert (try_mkdir (sd) == mkdir_status::success);
+
+  cpfile (from, sd, cpflags::none);
+
+  assert (from_file (sd / path ("from")) == text1);
+
+  // Check that a hard link to the destination file is preserved.
+  //
+  path hlink (td / path ("hlink"));
+  mkhardlink (to, hlink);
+  to_file (hlink, text1);
+
+  to_file (from, text2);
+  cpfile (from, to, cpflags::overwrite_content);
+
+  assert (from_file (hlink) == text2);
+
+#ifndef _WIN32
+
+  // Check that 'from' being a symbolic link is properly resolved.
+  //
+  path fslink (td / path ("fslink"));
+  mksymlink (from, fslink);
+
+  cpfile (fslink, to, cpflags::overwrite_content);
+
+  // Make sure 'to' is not a symbolic link to 'from' and from_file() just
+  // follows it.
+  //
+  assert (try_rmfile (from) == rmfile_status::success);
+  assert (from_file (to) == text2);
+
+  // Check that 'to' being a symbolic link is properly resolved.
+  //
+  path tslink (td / path ("tslink"));
+  mksymlink (to, tslink);
+
+  to_file (from, text3);
+  cpfile (from, tslink, cpflags::overwrite_content);
+  assert (from_file (to) == text3);
+
+  // Check that permissions are properly overwritten when 'to' is a symbolic
+  // link.
+  //
+  to_file (from, text1);
+  path_permissions (from, permissions::ru | permissions::xu);
+
+  cpfile (
+    from, tslink, cpflags::overwrite_content | cpflags::overwrite_permissions);
+
+  assert (from_file (to) == text1);
+  assert (path_permissions (to) == path_permissions (from));
+
+  path_permissions (to, p);
+  path_permissions (from, p);
+
+  // Check that no-overwrite file copy fails even if 'to' symlink points to
+  // non-existent file.
+  //
+  assert (try_rmfile (to) == rmfile_status::success);
+
+  try
+  {
+    cpfile (from, tslink, cpflags::none);
+    assert (false);
+  }
+  catch (const system_error&)
+  {
+  }
+
+  // Check that copy fail if 'from' symlink points to non-existent file.
+  //
+  try
+  {
+    cpfile (tslink, from, cpflags::none);
+    assert (false);
+  }
+  catch (const system_error&)
+  {
+  }
+#endif
+
+  rmdir_r (td);
+}
-- 
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