more docs on interaction-based testing
more docs on interaction-based testing

alien11689/spock,paplorinc/spock,paplorinc/spock,siordache/spock,alien11689/spock,lokinell/spock,leonard84/spock,psideleau/spock,psideleau/spock,GeeChao/spock,Fuud/spock,spockframework/spock,psideleau/spock,Fuud/spock,GeeChao/spock,siordache/spock,alien11689/spock,paplorinc/spock,siordache/spock,raphw/spock,lokinell/spock,lokinell/spock,Fuud/spock,Fuud/spock,sebi-hgdata/spock,raphw/spock,raphw/spock,sebi-hgdata/spock,sebi-hgdata/spock,GeeChao/spock