block_spec.rb in bitcoin-ruby-0.0.2

- old
+ new

@@ -1,41 +1,45 @@
+# encoding: ascii-8bit
+
 require_relative '../spec_helper.rb'
+include Bitcoin::Protocol
 
 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'),
-  }
+  before 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'),
+    }
+  end
 
-
   it '#new' do
     proc{
-      Bitcoin::Protocol::Block.new( nil )
-      @block = Bitcoin::Protocol::Block.new( @blocks['0'] )
+      Block.new( nil )
+      @block = Block.new( @blocks['0'] )
     }.should.not.raise Exception
 
     proc{
-      Bitcoin::Protocol::Block.new( @blocks['0'][0..20] )
+      Block.new( @blocks['0'][0..20] )
     }.should.raise Exception
 
-    block = Bitcoin::Protocol::Block.new(nil)
+    block = 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 = Block.new(nil)
     block.parse_data(@blocks['0'] + "AAAA").should == "AAAA"
     block.header_info[7].should == 215
     block.to_payload.should == @blocks['0']
   end
 
@@ -43,45 +47,114 @@
     @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].is_a?(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"
+    Block.new( @blocks['1'] ).to_json.should == fixtures_file('rawblock-1.json')
+    Block.new( @blocks['131025'] ).to_json.should == fixtures_file('rawblock-131025.json')
+    Block.new( @blocks['testnet-26478'] ).to_json.should == fixtures_file('rawblock-testnet-26478.json')
+    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']
+    Block.new( @block.to_payload ).to_payload.should == @block.payload
+    Block.new( @blocks['1'] ).to_payload.should == @blocks['1']
+    Block.new( @blocks['131025'] ).to_payload.should == @blocks['131025']
+    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']
+  describe "Block.from_json" do
 
-    Bitcoin::Protocol::Block.from_json(fixtures_file('rawblock-131025.json'))
-      .to_payload.should == @blocks['131025']
+    it 'should load blocks from json' do
+      block = 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"
+      Block.from_json(fixtures_file('rawblock-1.json')).to_payload.should == @blocks['1']
+   
+      Block.from_json(fixtures_file('rawblock-131025.json'))
+        .to_payload.should == @blocks['131025']
+   
+      Block.from_json(fixtures_file('rawblock-testnet-26478.json'))
+        .to_payload.should == @blocks['testnet-26478']
 
-    Bitcoin::Protocol::Block.from_json(fixtures_file('rawblock-testnet-26478.json'))
-      .to_payload.should == @blocks['testnet-26478']
+      # testnet3 block 0000000000ac85bb2530a05a4214a387e6be02b22d3348abc5e7a5d9c4ce8dab
+      block_raw = fixtures_file('block-testnet-0000000000ac85bb2530a05a4214a387e6be02b22d3348abc5e7a5d9c4ce8dab.bin')
+      Block.new(block_raw).to_payload.should == block_raw
+      # Block.from_json(Block.new(block_raw).to_json).to_payload.should == block_raw # slow test
+    end
+
+    it "should work with litecoin blocks" do
+      Bitcoin.network = :litecoin # change to litecoin
+      litecoin_block = "litecoin-genesis-block-12a765e31ffd4059bada1e25190f6e98c99d9714d334efa41a195a7e7e04bfe2"
+      Block.from_json(fixtures_file(litecoin_block + '.json'))
+        .to_payload.should == fixtures_file(litecoin_block + '.bin')
+
+      json = Block.new(fixtures_file(litecoin_block + '.bin')).to_json
+      Block.from_json(json)
+        .to_payload.should == fixtures_file(litecoin_block + '.bin')
+      Block.from_json(json).hash == litecoin_block.split("-").last
+
+      litecoin_block = "litecoin-block-80ca095ed10b02e53d769eb6eaf92cd04e9e0759e5be4a8477b42911ba49c78f"
+      Block.from_json(fixtures_file(litecoin_block + '.json'))
+        .to_payload.should == fixtures_file(litecoin_block + '.bin')
+
+      json = Block.new(fixtures_file(litecoin_block + '.bin')).to_json
+      Block.from_json(json)
+        .to_payload.should == fixtures_file(litecoin_block + '.bin')
+      Block.from_json(json).hash == litecoin_block.split("-").last
+      Bitcoin.network = :bitcoin
+    end
+
+    it "should work with freicoin blocks" do
+      Bitcoin.network = :freicoin # change to freicoin
+      freicoin_block = "freicoin-genesis-block-000000005b1e3d23ecfd2dd4a6e1a35238aa0392c0a8528c40df52376d7efe2c"
+      Block.from_json(fixtures_file(freicoin_block + '.json'))
+        .to_payload.should == fixtures_file(freicoin_block + '.bin')
+
+      json = Block.new(fixtures_file(freicoin_block + '.bin')).to_json
+      Block.from_json(json)
+        .to_payload.should == fixtures_file(freicoin_block + '.bin')
+      Block.from_json(json).hash == freicoin_block.split("-").last
+
+      freicoin_block = "freicoin-block-000000005d231b285e63af83edae2d8f5e50e70d396468643092b9239fd3be3c"
+      Block.from_json(fixtures_file(freicoin_block + '.json'))
+        .to_payload.should == fixtures_file(freicoin_block + '.bin')
+
+      json = Block.new(fixtures_file(freicoin_block + '.bin')).to_json
+      Block.from_json(json)
+        .to_payload.should == fixtures_file(freicoin_block + '.bin')
+      Block.from_json(json).hash == freicoin_block.split("-").last
+      Bitcoin.network = :bitcoin
+    end
+
+    it 'should check block hash' do
+      block = Block.from_json(fixtures_file('rawblock-0.json'))
+      h = block.to_hash
+      h['hash'][0] = "1"
+      -> { Block.from_hash(h) }.should.raise(Exception)
+        .message.should == "Block hash mismatch! Claimed: 10000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048, Actual: 00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048"
+    end
+
+    it "should check merkle tree" do
+      block = Block.from_json(fixtures_file('rawblock-0.json'))
+      h = block.to_hash
+      h['tx'][0]['ver'] = 2
+      -> { Block.from_hash(h) }.should.raise(Exception)
+        .message.should.include?("Block merkle root mismatch!")
+    end
+
   end
 
   it '#header_to_json' do
     @block.header_to_json.should == (<<-JSON).chomp
 {
@@ -94,8 +167,30 @@
   "nonce":2573394689,
   "n_tx":1,
   "size":215
 }
     JSON
+  end
+
+  it '#verify_mrkl_root' do
+    block0 = Block.from_json(fixtures_file('rawblock-0.json'))
+    block1 = Block.from_json(fixtures_file('rawblock-1.json'))
+    block0.tx.size.should == 1
+    block0.verify_mrkl_root.should == true
+    block0.tx << block.tx.last # test against CVE-2012-2459
+    block0.verify_mrkl_root.should == false
+    block0.tx = block1.tx
+    block0.verify_mrkl_root.should == false
+  end
+
+  it '#bip34_block_height' do
+    # block version 1
+    block = Block.from_json(fixtures_file('rawblock-131025.json'))
+    block.ver.should == 1
+    block.bip34_block_height.should == nil
+    # block version 2 (introduced by BIP_0034)
+    block = Block.from_json(fixtures_file('000000000000056b1a3d84a1e2b33cde8915a4b61c0cae14fca6d3e1490b4f98.json'))
+    block.ver.should == 2
+    block.bip34_block_height.should == 197657
   end
 
 end