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

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