var util = require('../lib/test-utils.js');
var expect = require('chai').expect;

describe('fs.mknod', function() {
  beforeEach(util.setup);
  afterEach(util.cleanup);

  it('should be a function', function(done) {
    var fs = util.fs();
    expect(fs.mknod).to.be.a('function');
    done();
  });

  it('should return an error if part of the parent path does not exist', function(done) {
    var fs = util.fs();

    fs.mknod('/dir/mydir', 'DIRECTORY', function(error) {
      expect(error.code).to.equal('ENOENT');
      done();
    });
  });

  it('should return an error if path already exists', function(done) {
    var fs = util.fs();

    fs.mknod('/', 'DIRECTORY', function(error) {
      expect(error.code).to.equal('EEXIST');
      done();
    });
  });

  it('should return an error if the parent node is not a directory', function(done) {
    var fs = util.fs();

    fs.mknod('/file', 'FILE' , function(error) {
      if(error) throw error;

      fs.mknod('/file/myfile', 'FILE', function(error) {
        expect(error.code).to.equal('ENOTDIR');
        done();
      });
    });
  });

  it('should return an error if the mode provided is not DIRECTORY or FILE', function(done) {
    var fs = util.fs();

    fs.mknod('/symlink', 'SYMLINK', function(error) {
      expect(error).to.exist;
      expect(error.code).to.equal('EINVAL');
      done();
    });
  });

  it('should make a new directory', function(done) {
    var fs = util.fs();

    fs.mknod('/dir', 'DIRECTORY', function(error) {
      if(error) throw error;

      fs.stat('/dir', function(error, stats) {
        expect(error).not.to.exist;
        expect(stats.type).to.equal('DIRECTORY');
        done();
      });
    });
  });

  it('should make a new file', function(done) {
    var fs = util.fs();

    fs.mknod('/file', 'FILE' , function(error) {
      if(error) throw error;
      
      fs.stat('/file', function(error, result) {
        expect(error).not.to.exist;
        expect(result.type).to.equal('FILE');
        done();
      });
    });
  });
});