class M::Frameworks

def self.framework_runner
  new.framework_runner
end

def self.minitest4?
  minitest_version_major == "4"
end

def self.minitest5?
  minitest_version_major == "5"
end

def self.minitest_version_major
  if defined?(Minitest::Unit::VERSION)
    Minitest::Unit::VERSION.slice(/\d+/)
  elsif defined?(Minitest::VERSION)
    Minitest::VERSION.slice(/\d+/)
  end
end

def self.test_unit?
  defined?(Test::Unit)
end

def framework_runner
  if minitest5?
    Runners::Minitest5.new
  elsif minitest4?
    Runners::Minitest4.new
  elsif test_unit?
    Runners::TestUnit.new
  else
    Runners::UnsupportedFramework.new
  end
end

def minitest4?
  self.class.minitest4?
end

def minitest5?
  self.class.minitest5?
end

def test_unit?
  self.class.test_unit?
end