path_test.cpp

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//  path_test program  -------------------------------------------------------//

//  Copyright Beman Dawes 2002
//  Copyright Vladimir Prus 2002

//  Use, modification, and distribution is subject to the Boost Software
//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
//  http://www.boost.org/LICENSE_1_0.txt)

//  See library home page at http://www.boost.org/libs/filesystem

//  basic_path's stem(), extension(), and replace_extension() tests are based
//  on basename(), extension(), and change_extension() tests from the original
//  convenience_test.cpp by Vladimir Prus.

//  See deprecated_test for tests of deprecated features
#define BOOST_FILESYSTEM_NO_DEPRECATED

#include <boost/filesystem/operations.hpp>
#include <boost/utility.hpp>
#include <iostream>
#include <sstream>
#include <string>
#include <vector>
#include <cstring>
#include <cassert>

namespace fs = boost::filesystem;
using boost::filesystem::path;
using boost::next;
using boost::prior;

#include <boost/test/minimal.hpp>

#define PATH_CHECK( a, b ) check( a, b, __LINE__ )
#define DIR_CHECK( a, b ) check_dir( a, b, __LINE__ )
#define CHECK_EQUAL( a,b ) check_equal( a, b, __LINE__ )


namespace
{
  std::string platform( BOOST_PLATFORM );

  int errors;

  void check( const fs::path & source,
              const std::string & expected, int line )
  {
    if ( source.string()== expected ) return;

    ++errors;

    std::cout << '(' << line << ") source.string(): \"" << source.string()
              << "\" != expected: \"" << expected
              << "\"" << std::endl;
  }

  void check_dir( const fs::path & source,
              const std::string & expected, int line )
  {
    if ( source.directory_string()== expected ) return;

    ++errors;

    std::cout << '(' << line << ") source.directory_string(): \""
              << source.directory_string()
              << "\" != expected: \"" << expected
              << "\"" << std::endl;
  }

  void check_equal( const std::string & value,
              const std::string & expected, int line )
  {
    if ( value == expected ) return;

    ++errors;

    std::cout << '(' << line << ") value: \"" << value
              << "\" != expected: \"" << expected
              << "\"" << std::endl;
  }


  void exception_tests()
  {
    const std::string str_1("string-1");
    boost::system::error_code ec( 12345, boost::system::system_category);
    try { throw fs::filesystem_error( str_1, ec ); }
    catch ( const fs::filesystem_error & ex )
    {
      //std::cout << ex.what() << "*" << std::endl;
      //BOOST_CHECK( std::strcmp( ex.what(),
      //  "string-1: Unknown error" ) == 0 );
      BOOST_CHECK( ex.code() == ec );
    }

    try { throw fs::filesystem_error( str_1, "p1", "p2", ec ); }
    catch ( const fs::filesystem_error & ex )
    {
      //std::cout << ex.what() << "*" << std::endl;                    
      //BOOST_CHECK( std::strcmp( ex.what(),
      //  "string-1: Unknown error: \"p1\", \"p2\"" ) == 0 );
      BOOST_CHECK( ex.code() == ec );
      BOOST_CHECK( ex.path1().string() == "p1" );
      BOOST_CHECK( ex.path2().string() == "p2" );
    }
  }

} // unnamed namespace

int test_main( int, char*[] )
{
  // The choice of platform is make at runtime rather than compile-time
  // so that compile errors for all platforms will be detected even though
  // only the current platform is runtime tested.
  platform = ( platform == "Win32" || platform == "Win64" || platform == "Cygwin" )
               ? "Windows"
               : "POSIX";
  std::cout << "Platform is " << platform << '\n';

  path p1( "fe/fi/fo/fum" );
  path p2( p1 );
  path p3;
  BOOST_CHECK( p1.string() != p3.string() );
  p3 = p2;
  BOOST_CHECK( p1.string() == p3.string() );

  path p4( "foobar" );
  BOOST_CHECK( p4.string() == "foobar" );
  p4 = p4; // self-assignment
  BOOST_CHECK( p4.string() == "foobar" );

  exception_tests();

  // These verify various overloads don't cause compiler errors

  fs::exists( p1 );
  fs::exists( "foo" );
  fs::exists( std::string( "foo" ) );

  fs::exists( p1 / path( "foo" ) );
  fs::exists( p1 / "foo" );
  fs::exists( p1 / std::string( "foo" ) );

  fs::exists( "foo" / p1 );
  fs::exists( std::string( "foo" ) / p1 );

  p4 /= path( "foo" );
  p4 /= "foo";
  p4 /= std::string( "foo" );

  path p5;
  std::string s1( "//:somestring" );

  // verify deprecated names still available

# ifndef BOOST_FILESYSTEM_NO_DEPRECATED

  p1.branch_path();
  p1.leaf();
  path p_remove_leaf;
  p_remove_leaf.remove_leaf();

# endif


# ifndef BOOST_NO_MEMBER_TEMPLATES

  // check the path member templates
  p5.assign( s1.begin(), s1.end() );

  PATH_CHECK( p5, "somestring" );
  p5 = s1;
  PATH_CHECK( p5, "somestring" );

  BOOST_CHECK( p4.string() == path( p4.string().begin(), p4.string().end() ).string() );

  char c0 = 'a';
  p5.assign( &c0, &c0 );
  PATH_CHECK( p5, "" );
  p5 /= "";
  PATH_CHECK( p5, "" );
  p5 /= "foo/bar";
  PATH_CHECK( p5, "foo/bar" );
  p5.append( &c0, &c0 );
  PATH_CHECK( p5, "foo/bar" );
  p5 /= "";
  PATH_CHECK( p5, "foo/bar" );
  char bf[]= "bar/foo";
  p5.assign( bf, bf + sizeof(bf) ); 
  PATH_CHECK( p5, bf );
  p5.append( bf, bf + sizeof(bf) ); 
  PATH_CHECK( p5, "bar/foo/bar/foo" );

  // this code, courtesy of David Whetstone, detected a now fixed bug that
  // derefereced the end iterator (assuming debug build with checked itors)
  std::vector<char> v1;
  p5.assign( v1.begin(), v1.end() );
  std::string s2( v1.begin(), v1.end() );
  PATH_CHECK( p5, s2 );
  p5.assign( s1.begin(), s1.begin() + 1 );
  PATH_CHECK( p5, "/" );

# endif

  BOOST_CHECK( p1 != p4 );
  BOOST_CHECK( p1.string() == p2.string() );
  BOOST_CHECK( p1.string() == p3.string() );
  BOOST_CHECK( path( "foo" ).filename() == "foo" );
  BOOST_CHECK( path( "foo" ).parent_path().string() == "" );
  BOOST_CHECK( p1.filename() == "fum" );
  BOOST_CHECK( p1.parent_path().string() == "fe/fi/fo" );
  BOOST_CHECK( path( "" ).empty() == true );
  BOOST_CHECK( path( "foo" ).empty() == false );

  PATH_CHECK( "", "" );

  PATH_CHECK( "foo", "foo" );
  PATH_CHECK( "f", "f" );

  PATH_CHECK( "foo/", "foo/" );
  PATH_CHECK( "f/", "f/" );
  PATH_CHECK( "foo/..", "foo/.." );
  PATH_CHECK( "foo/../", "foo/../" );
  PATH_CHECK( "foo/bar/../..", "foo/bar/../.." );
  PATH_CHECK( "foo/bar/../../", "foo/bar/../../" );
  PATH_CHECK( path("") / "foo", "foo" );
  PATH_CHECK( path("") / "foo/", "foo/" );
  PATH_CHECK( path("foo") / "", "foo" );
  PATH_CHECK( path( "/" ), "/" );
  PATH_CHECK( path( "/" ) / "", "/" );
  PATH_CHECK( path( "/f" ), "/f" );

  PATH_CHECK( "/foo", "/foo" );
  PATH_CHECK( path("") / "/foo", "/foo" );
  PATH_CHECK( path("/foo") / "", "/foo" );

  if ( platform == "Windows" )
  {
    PATH_CHECK( path("c:") / "foo", "c:foo" );
    PATH_CHECK( path("c:") / "/foo", "c:/foo" );
  }

  if ( platform == "Windows" )
  {
    PATH_CHECK( path("c:") / "foo", "c:foo" );
    PATH_CHECK( path("c:") / "/foo", "c:/foo" );
  }

  PATH_CHECK( "foo/bar", "foo/bar" );
  PATH_CHECK( path("foo") / path("bar"), "foo/bar" ); // path arg
  PATH_CHECK( path("foo") / "bar", "foo/bar" );       // const char * arg
  PATH_CHECK( path("foo") / path("woo/bar").filename(), "foo/bar" ); // const std::string & arg
  PATH_CHECK( "foo" / path("bar"), "foo/bar" );

  PATH_CHECK( "a/b", "a/b" );  // probe for length effects
  PATH_CHECK( path("a") / "b", "a/b" );

  PATH_CHECK( "..", ".." );
  PATH_CHECK( path("..") / "", ".." );
  PATH_CHECK( path("") / "..", ".." );

  PATH_CHECK( "../..", "../.." );
  PATH_CHECK( path("..") / ".." , "../.." );

  PATH_CHECK( "/..", "/.." );
  PATH_CHECK( path("/") / ".." , "/.." );

  PATH_CHECK( "/../..", "/../.." );
  PATH_CHECK( path("/..") / ".." , "/../.." );

  PATH_CHECK( "../foo", "../foo" );
  PATH_CHECK( path("..") / "foo" , "../foo" );

  PATH_CHECK( "foo/..", "foo/.." );
  PATH_CHECK( path("foo") / ".." , "foo/.." );
  PATH_CHECK( path( "foo/..bar"), "foo/..bar" );

  PATH_CHECK( "../f", "../f" );
  PATH_CHECK( path("..") / "f" , "../f" );

  PATH_CHECK( "/../f", "/../f" );
  PATH_CHECK( path("/..") / "f" , "/../f" );

  PATH_CHECK( "f/..", "f/.." );
  PATH_CHECK( path("f") / ".." , "f/.." );

  PATH_CHECK( "foo/../..", "foo/../.." );
  PATH_CHECK( path("foo") / ".." / ".." , "foo/../.." );

  PATH_CHECK( "foo/../../..", "foo/../../.." );
  PATH_CHECK( path("foo") / ".." / ".." / ".." , "foo/../../.." );

  PATH_CHECK( "foo/../bar", "foo/../bar" );
  PATH_CHECK( path("foo") / ".." / "bar" , "foo/../bar" );

  PATH_CHECK( "foo/bar/..", "foo/bar/.." );
  PATH_CHECK( path("foo") / "bar" / ".." , "foo/bar/.." );

  PATH_CHECK( "foo/bar/../..", "foo/bar/../.." );
  PATH_CHECK( path("foo") / "bar" / ".." / "..", "foo/bar/../.." );

  PATH_CHECK( "foo/bar/../blah", "foo/bar/../blah" );
  PATH_CHECK( path("foo") / "bar" / ".." / "blah", "foo/bar/../blah" );

  PATH_CHECK( "f/../b", "f/../b" );
  PATH_CHECK( path("f") / ".." / "b" , "f/../b" );

  PATH_CHECK( "f/b/..", "f/b/.." );
  PATH_CHECK( path("f") / "b" / ".." , "f/b/.." );

  PATH_CHECK( "f/b/../a", "f/b/../a" );
  PATH_CHECK( path("f") / "b" / ".." / "a", "f/b/../a" );

  PATH_CHECK( "foo/bar/blah/../..", "foo/bar/blah/../.." );
  PATH_CHECK( path("foo") / "bar" / "blah" / ".." / "..", "foo/bar/blah/../.." );

  PATH_CHECK( "foo/bar/blah/../../bletch", "foo/bar/blah/../../bletch" );
  PATH_CHECK( path("foo") / "bar" / "blah" / ".." / ".." / "bletch", "foo/bar/blah/../../bletch" );

  PATH_CHECK( "...", "..." );
  PATH_CHECK( "....", "...." );
  PATH_CHECK( "foo/...", "foo/..." );
  PATH_CHECK( "abc.", "abc." );
  PATH_CHECK( "abc..", "abc.." );
  PATH_CHECK( "foo/abc.", "foo/abc." );
  PATH_CHECK( "foo/abc..", "foo/abc.." );

  PATH_CHECK( path(".abc"), ".abc" );
  PATH_CHECK( "a.c", "a.c" );
  PATH_CHECK( path("..abc"), "..abc" );
  PATH_CHECK( "a..c", "a..c" );
  PATH_CHECK( path("foo/.abc"), "foo/.abc" );
  PATH_CHECK( "foo/a.c", "foo/a.c" );
  PATH_CHECK( path("foo/..abc"), "foo/..abc" );
  PATH_CHECK( "foo/a..c", "foo/a..c" );

  PATH_CHECK( ".", "." );
  PATH_CHECK( path("") / ".", "." );
  PATH_CHECK( "./foo", "./foo" );
  PATH_CHECK( path(".") / "foo", "./foo" );
  PATH_CHECK( "./..", "./.." );
  PATH_CHECK( path(".") / "..", "./.." );
  PATH_CHECK( "./../foo", "./../foo" );
  PATH_CHECK( "foo/.", "foo/." );
  PATH_CHECK( path("foo") / ".", "foo/." );
  PATH_CHECK( "../.", "../." );
  PATH_CHECK( path("..") / ".", "../." );
  PATH_CHECK( "./.", "./." );
  PATH_CHECK( path(".") / ".", "./." );
  PATH_CHECK( "././.", "././." );
  PATH_CHECK( path(".") / "." / ".", "././." );
  PATH_CHECK( "./foo/.", "./foo/." );
  PATH_CHECK( path(".") / "foo" / ".", "./foo/." );
  PATH_CHECK( "foo/./bar", "foo/./bar" );
  PATH_CHECK( path("foo") / "." / "bar", "foo/./bar" );
  PATH_CHECK( "foo/./.", "foo/./." );
  PATH_CHECK( path("foo") / "." / ".", "foo/./." );
  PATH_CHECK( "foo/./..", "foo/./.." );
  PATH_CHECK( path("foo") / "." / "..", "foo/./.." );
  PATH_CHECK( "foo/./../bar", "foo/./../bar" );
  PATH_CHECK( "foo/../.", "foo/../." );
  PATH_CHECK( path(".") / "." / "..", "././.." );
  PATH_CHECK( "././..", "././.." );
  PATH_CHECK( path(".") / "." / "..", "././.." );
  PATH_CHECK( "./../.", "./../." );
  PATH_CHECK( path(".") / ".." / ".", "./../." );
  PATH_CHECK( ".././.", ".././." );
  PATH_CHECK( path("..") / "." / ".", ".././." );

  // iterator tests

  path itr_ck = "";
  path::const_iterator itr = itr_ck.begin();
  BOOST_CHECK( itr == itr_ck.end() );

  itr_ck = "/";
  itr = itr_ck.begin();
  BOOST_CHECK( *itr == std::string( "/" ) );
  BOOST_CHECK( ++itr == itr_ck.end() );
  BOOST_CHECK( *--itr == std::string( "/" ) );

  itr_ck = "foo";
  BOOST_CHECK( *itr_ck.begin() == std::string( "foo" ) );
  BOOST_CHECK( next( itr_ck.begin() ) == itr_ck.end() );
  BOOST_CHECK( *prior( itr_ck.end() ) == std::string( "foo" ) );
  BOOST_CHECK( prior( itr_ck.end() ) == itr_ck.begin() );

  itr_ck = path( "/foo" );
  BOOST_CHECK( *itr_ck.begin() == std::string( "/" ) );
  BOOST_CHECK( *next( itr_ck.begin() ) == std::string( "foo" ) );
  BOOST_CHECK( next(next( itr_ck.begin() )) == itr_ck.end() );
  BOOST_CHECK( next( itr_ck.begin() ) == prior( itr_ck.end() ) );
  BOOST_CHECK( *prior( itr_ck.end() ) == std::string( "foo" ) );
  BOOST_CHECK( *prior(prior( itr_ck.end() )) == std::string( "/" ) );
  BOOST_CHECK( prior(prior( itr_ck.end() )) == itr_ck.begin() );

  itr_ck = "/foo/bar";
  itr = itr_ck.begin();
  BOOST_CHECK( *itr == std::string( "/" ) );
  BOOST_CHECK( *++itr == std::string( "foo" ) );
  BOOST_CHECK( *++itr == std::string( "bar" ) );
  BOOST_CHECK( ++itr == itr_ck.end() );
  CHECK_EQUAL( *--itr, "bar" );
  CHECK_EQUAL( *--itr, "foo" );
  CHECK_EQUAL( *--itr, "/" );

  itr_ck = "../f"; // previously failed due to short name bug
  itr = itr_ck.begin();
  CHECK_EQUAL( *itr, ".." );
  CHECK_EQUAL( *++itr, "f" );
  BOOST_CHECK( ++itr == itr_ck.end() );
  CHECK_EQUAL( *--itr, "f" );
  CHECK_EQUAL( *--itr, ".." );

  // POSIX says treat "/foo/bar/" as "/foo/bar/."
  itr_ck = "/foo/bar/";