require_relative '../spec_helper.rb'

describe 'Bitcoin::Protocol::Block' do

  @blocks = {
    # block 0:  00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048
    '0' => fixtures_file('rawblock-0.bin'),
    # block 1:  000000006a625f06636b8bb6ac7b960a8d03705d1ace08b1a19da3fdcc99ddbd
    '1' => fixtures_file('rawblock-1.bin'),
    # block 9:  000000008d9dc510f23c2657fc4f67bea30078cc05a90eb89e84cc475c080805
    '9' => fixtures_file('rawblock-9.bin'),
    # block 170:  00000000d1145790a8694403d4063f323d499e655c83426834d4ce2f8dd4a2ee
    '170' => fixtures_file('rawblock-170.bin'),
    # block 131025:  00000000000007d938dbdd433c5ae12a782de74abf7f566518bc2b2d0a1df145
    '131025' => fixtures_file('rawblock-131025.bin'),
    # block 26478:  000000000214a3f06ee99a033a7f2252762d6a18d27c3cd8c8fe2278190da9f3
    'testnet-26478' => fixtures_file('rawblock-testnet-26478.bin'),
  }


  it '#new' do
    proc{
      Bitcoin::Protocol::Block.new( nil )
      @block = Bitcoin::Protocol::Block.new( @blocks['0'] )
    }.should.not.raise Exception

    proc{
      Bitcoin::Protocol::Block.new( @blocks['0'][0..20] )
    }.should.raise Exception

    block = Bitcoin::Protocol::Block.new(nil)
    block.parse_data(@blocks['0']).should == true
    block.header_info[7].should == 215
    block.to_payload.should == @blocks['0']

    block = Bitcoin::Protocol::Block.new(nil)
    block.parse_data(@blocks['0'] + "AAAA").should == "AAAA"
    block.header_info[7].should == 215
    block.to_payload.should == @blocks['0']
  end

  it '#hash' do
    @block.hash.should == "00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048"
  end

  it '#tx' do
    @block.tx.size.should == 1
    @block.tx[0].is_a?(Bitcoin::Protocol::Tx).should == true
    @block.tx[0].hash.should == "0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098"
  end

  it '#to_hash' do
    @block.to_hash.keys.should == ["hash", "ver", "prev_block", "mrkl_root", "time", "bits", "nonce", "n_tx", "size", "tx", "mrkl_tree"]
  end

  it '#to_json' do
    @block.to_json.should == fixtures_file('rawblock-0.json')
    Bitcoin::Protocol::Block.new( @blocks['1'] ).to_json.should == fixtures_file('rawblock-1.json')
    Bitcoin::Protocol::Block.new( @blocks['131025'] ).to_json.should == fixtures_file('rawblock-131025.json')
    Bitcoin::Protocol::Block.new( @blocks['testnet-26478'] ).to_json.should == fixtures_file('rawblock-testnet-26478.json')
    Bitcoin::P::Block.from_json(@block.to_json).tx[0].in[0].sequence.should == "\xff\xff\xff\xff"
  end

  it '#to_payload' do
    @block.to_payload.should == @block.payload
    Bitcoin::Protocol::Block.new( @block.to_payload ).to_payload.should == @block.payload
    Bitcoin::Protocol::Block.new( @blocks['1'] ).to_payload.should == @blocks['1']
    Bitcoin::Protocol::Block.new( @blocks['131025'] ).to_payload.should == @blocks['131025']
    Bitcoin::Protocol::Block.new( @blocks['testnet-26478'] ).to_payload.should == @blocks['testnet-26478']
  end

  it '#from_json' do
    block = Bitcoin::Protocol::Block.from_json(fixtures_file('rawblock-0.json'))
    block.to_payload.should == @blocks['0']
    block.tx[0].in[0].sequence.should == "\xff\xff\xff\xff"
    Bitcoin::Protocol::Block.from_json(fixtures_file('rawblock-1.json')).to_payload.should == @blocks['1']

    Bitcoin::Protocol::Block.from_json(fixtures_file('rawblock-131025.json'))
      .to_payload.should == @blocks['131025']

    Bitcoin::Protocol::Block.from_json(fixtures_file('rawblock-testnet-26478.json'))
      .to_payload.should == @blocks['testnet-26478']
  end

  it '#header_to_json' do
    @block.header_to_json.should == (<<-JSON).chomp
{
  "hash":"00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048",
  "ver":1,
  "prev_block":"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
  "mrkl_root":"0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098",
  "time":1231469665,
  "bits":486604799,
  "nonce":2573394689,
  "n_tx":1,
  "size":215
}
    JSON
  end

end