describe "NSData" do

  it "native methods should work - ASCII" do
    NSString.stringWithUTF8String('test'.dataUsingEncoding(NSUTF8StringEncoding)).should == 'test'
    NSString.stringWithUTF8String('test'.nsdata).should == 'test'
  end

  it "native methods should work - unicode" do
    NSString.stringWithUTF8String("t\u0113st".dataUsingEncoding(NSUTF8StringEncoding)).should == "t\u0113st"
    NSString.stringWithUTF8String("t\u0113st".nsdata).should == "t\u0113st"
  end

  it "native methods should work - turkey" do
    NSString.stringWithUTF8String("\u00ab\u03c4\u03b1\u0411\u042c\u2113\u03c3\u00bb".dataUsingEncoding(NSUTF8StringEncoding)).should == "\u00ab\u03c4\u03b1\u0411\u042c\u2113\u03c3\u00bb"
    NSString.stringWithUTF8String("\u00ab\u03c4\u03b1\u0411\u042c\u2113\u03c3\u00bb".nsdata).should == "\u00ab\u03c4\u03b1\u0411\u042c\u2113\u03c3\u00bb"
  end

  it "should be able to create an ASCII string from data" do
    'test'.nsdata.nsstring.should == 'test'
  end

  it "should be able to create a unicode string from data" do
    "t\u0113st".nsdata.nsstring.should == "t\u0113st"
  end

  it "should be able to create a turkey string from data" do
    "\u00ab\u03c4\u03b1\u0411\u042c\u2113\u03c3\u00bb".nsdata.nsstring.should == "\u00ab\u03c4\u03b1\u0411\u042c\u2113\u03c3\u00bb"
  end

  describe "should be able to create an image" do
    before do
      @image = 'little_square'.uiimage
    end

    it "shouldn't need a format" do
      new_image = @image.nsdata.uiimage
      new_image.should.is_a? UIImage
      new_image.size.width.should == @image.size.width * @image.scale
      new_image.size.height.should == @image.size.height * @image.scale
    end

    it "should support :png" do
      new_image = @image.nsdata(:png).uiimage
      new_image.should.is_a? UIImage
      new_image.size.width.should == @image.size.width * @image.scale
      new_image.size.height.should == @image.size.height * @image.scale
    end

    it "should support :jpg" do
      new_image = @image.nsdata(:jpg).uiimage
      new_image.should.is_a? UIImage
      new_image.size.width.should == @image.size.width * @image.scale
      new_image.size.height.should == @image.size.height * @image.scale
    end

  end

  describe "write_to" do

    after do
      "a-z".document.remove!
    end

    it "should write data to spcified path" do
      path = "a-z".document
      contents = (:a..:z).to_a.join
      contents.nsdata.write_to(path).should == true
      path.exists?.should == true
      path.fileurl.nsdata.nsstring.should == contents
    end

    it "should write data to spcified url" do
      url = NSURL.alloc.initFileURLWithPath "a-z".document
      contents = (:a..:z).to_a.join
      contents.nsdata.write_to(url).should == true
      path = "a-z".document
      path.exists?.should == true
      url.nsdata.nsstring.should == contents
    end

  end

end