spec_helper.rb in bitcoin-ruby-0.0.2

- old
+ new

@@ -1,5 +1,7 @@
+# encoding: ascii-8bit
+
 $: << File.expand_path(File.join(File.dirname(__FILE__), '/../../lib'))
 
 begin
   require 'simplecov'
   SimpleCov.start do
@@ -21,10 +23,76 @@
 def fixtures_file(relative_path)
   basedir = File.join(File.dirname(__FILE__), 'fixtures')
   Bitcoin::Protocol.read_binary_file( File.join(basedir, relative_path) )
 end
 
+include Bitcoin::Builder
+
+# create block for given +prev+ block
+# if +store+ is true, save it to @store
+# accepts an array of +tx+ callbacks
+def create_block prev, store = true, tx = [], key = Bitcoin::Key.new, coinbase_value = 50e8, opts = {}
+  opts[:bits] ||= Bitcoin.network[:proof_of_work_limit]
+  block = build_block(Bitcoin.decode_compact_bits(opts[:bits])) do |b|
+    b.time opts[:time]  if opts[:time]
+    b.prev_block prev
+    b.tx do |t|
+      t.input {|i| i.coinbase }
+      t.output {|o| o.value coinbase_value; o.script {|s| s.recipient key.addr } }
+    end
+    tx.each {|cb| b.tx {|t| cb.call(t) } }
+  end
+  @store.store_block(block)  if store
+  block
+end
+
+# create transaction given builder +tx+
+# +outputs+ is an array of [value, key] pairs
+def create_tx(tx, prev_tx, prev_out_index, outputs)
+  tx.input {|i| i.prev_out prev_tx; i.prev_out_index prev_out_index; i.signature_key @key }
+  outputs.each do |value, key|
+    tx.output {|o| o.value value; o.script {|s| s.recipient key.addr } }
+  end
+end
+
+# create a chain of +n+ blocks, based on +prev_hash+ block.
+# influence chain properties via options:
+#  time: start time all other times are based on
+#  interval: time between blocks
+#  bits: target bits each block must match
+def create_blocks prev_hash, n, opts = {}
+  interval = opts[:interval] || 600
+  time = opts[:time] || Time.now.to_i
+  bits = opts[:bits] || 553713663
+  block = @store.get_block(prev_hash)
+  n.times do |i|
+    block = create_block block.hash, true, [], @key, 50e8, {
+      time: time += interval, bits: bits }
+    # block = @store.get_block(block.hash)
+    # puts "#{i} #{block.hash[0..8]} #{block.prev_block.reverse_hth[0..8]} #{Time.at(block.time).strftime('%Y-%m-%d %H:%M:%S')} c: #{block.chain} b: #{block.bits} n: #{block.nonce} w: #{block.work}"
+  end
+  block
+end
+
+
 Bitcoin::network = :bitcoin
+
+Bitcoin::NETWORKS[:spec] = {
+  :project => :bitcoin,
+  :magic_head => "spec",
+  :address_version => "6f",
+  :p2sh_version => "c4",
+  :privkey_version => "ef",
+  :default_port => 48333,
+  :protocol_version => 70001,
+  :max_money => 21_000_000 * 100_000_000,
+  :dns_seeds => [],
+  :genesis_hash => "000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943",
+  :proof_of_work_limit => 553713663,
+  :alert_pubkeys => [],
+  :known_nodes => [],
+  :checkpoints => {}
+}
 
 begin
   require 'bacon'
 rescue LoadError
   puts "Cannot load 'bacon' - install with `gem install bacon`"