'use strict';
var tape = require('tape');
var path = require('../');

var backslashRE = /\\/g;

var joinTests =
    // arguments                     result
    [[['.', 'x/b', '..', '/b/c.js'], 'x/b/c.js'],
     [[], '.'],
     [['/.', 'x/b', '..', '/b/c.js'], '/x/b/c.js'],
     [['/foo', '../../../bar'], '/bar'],
     [['foo', '../../../bar'], '../../bar'],
     [['foo/', '../../../bar'], '../../bar'],
     [['foo/x', '../../../bar'], '../bar'],
     [['foo/x', './bar'], 'foo/x/bar'],
     [['foo/x/', './bar'], 'foo/x/bar'],
     [['foo/x/', '.', 'bar'], 'foo/x/bar'],
     [['./'], './'],
     [['.', './'], './'],
     [['.', '.', '.'], '.'],
     [['.', './', '.'], '.'],
     [['.', '/./', '.'], '.'],
     [['.', '/////./', '.'], '.'],
     [['.'], '.'],
     [['', '.'], '.'],
     [['', 'foo'], 'foo'],
     [['foo', '/bar'], 'foo/bar'],
     [['', '/foo'], '/foo'],
     [['', '', '/foo'], '/foo'],
     [['', '', 'foo'], 'foo'],
     [['foo', ''], 'foo'],
     [['foo/', ''], 'foo/'],
     [['foo', '', '/bar'], 'foo/bar'],
     [['./', '..', '/foo'], '../foo'],
     [['./', '..', '..', '/foo'], '../../foo'],
     [['.', '..', '..', '/foo'], '../../foo'],
     [['', '..', '..', '/foo'], '../../foo'],
     [['/'], '/'],
     [['/', '.'], '/'],
     [['/', '..'], '/'],
     [['/', '..', '..'], '/'],
     [[''], '.'],
     [['', ''], '.'],
     [[' /foo'], ' /foo'],
     [[' ', 'foo'], ' /foo'],
     [[' ', '.'], ' '],
     [[' ', '/'], ' /'],
     [[' ', ''], ' '],
     [['/', 'foo'], '/foo'],
     [['/', '/foo'], '/foo'],
     [['/', '//foo'], '/foo'],
     [['/', '', '/foo'], '/foo'],
     [['', '/', 'foo'], '/foo'],
     [['', '/', '/foo'], '/foo']
    ];

// Windows-specific join tests
var windowsJoinTests =
    [// arguments                     result
      // UNC path expected
      [['//foo/bar'], '\\\\foo\\bar\\'],
      [['\\/foo/bar'], '\\\\foo\\bar\\'],
      [['\\\\foo/bar'], '\\\\foo\\bar\\'],
      // UNC path expected - server and share separate
      [['//foo', 'bar'], '\\\\foo\\bar\\'],
      [['//foo/', 'bar'], '\\\\foo\\bar\\'],
      [['//foo', '/bar'], '\\\\foo\\bar\\'],
      // UNC path expected - questionable
      [['//foo', '', 'bar'], '\\\\foo\\bar\\'],
      [['//foo/', '', 'bar'], '\\\\foo\\bar\\'],
      [['//foo/', '', '/bar'], '\\\\foo\\bar\\'],
      // UNC path expected - even more questionable
      [['', '//foo', 'bar'], '\\\\foo\\bar\\'],
      [['', '//foo/', 'bar'], '\\\\foo\\bar\\'],
      [['', '//foo/', '/bar'], '\\\\foo\\bar\\'],
      // No UNC path expected (no double slash in first component)
      [['\\', 'foo/bar'], '\\foo\\bar'],
      [['\\', '/foo/bar'], '\\foo\\bar'],
      [['', '/', '/foo/bar'], '\\foo\\bar'],
      // No UNC path expected (no non-slashes in first component -
      // questionable)
      [['//', 'foo/bar'], '\\foo\\bar'],
      [['//', '/foo/bar'], '\\foo\\bar'],
      [['\\\\', '/', '/foo/bar'], '\\foo\\bar'],
      [['//'], '/'],
      // No UNC path expected (share name missing - questionable).
      [['//foo'], '\\foo'],
      [['//foo/'], '\\foo\\'],
      [['//foo', '/'], '\\foo\\'],
      [['//foo', '', '/'], '\\foo\\'],
      // No UNC path expected (too many leading slashes - questionable)
      [['///foo/bar'], '\\foo\\bar'],
      [['////foo', 'bar'], '\\foo\\bar'],
      [['\\\\\\/foo/bar'], '\\foo\\bar'],
      // Drive-relative vs drive-absolute paths. This merely describes the
      // status quo, rather than being obviously right
      [['c:'], 'c:.'],
      [['c:.'], 'c:.'],
      [['c:', ''], 'c:.'],
      [['', 'c:'], 'c:.'],
      [['c:.', '/'], 'c:.\\'],
      [['c:.', 'file'], 'c:file'],
      [['c:', '/'], 'c:\\'],
      [['c:', 'file'], 'c:\\file']
    ];

tape('path.posix.join', function (t) {
  joinTests.forEach(function (p) {
    var actual = path.posix.join.apply(null, p[0]);
    t.strictEqual(actual, p[1]);
  });
  t.end();
});

tape('path.win32.join', { skip: true }, function (t) {
  joinTests.forEach(function (p) {
    var actual = path.win32.join.apply(null, p[0]).replace(backslashRE, '/');
    t.strictEqual(actual, p[1]);
  });
  windowsJoinTests.forEach(function (p) {
    var actual = path.win32.join.apply(null, p[0]);
    t.strictEqual(actual, p[1]);
  });
  t.end();
});