free_mutant/spec/support/file_system.rb
2018-09-12 13:15:43 +00:00

62 lines
1.1 KiB
Ruby

# frozen_string_literal: true
module MutantSpec
class FileState
DEFAULTS = IceNine.deep_freeze(
file: false,
contents: nil,
requires: []
)
include Adamantium, Anima.new(*DEFAULTS.keys)
def self.new(attributes = DEFAULTS)
super(DEFAULTS.merge(attributes))
end
DOES_NOT_EXIST = new
alias_method :file?, :file
end # FileState
class FakePathname
include Adamantium, Concord.new(:file_system, :pathname)
def join(*arguments)
self.class.new(
file_system,
pathname.join(*arguments)
)
end
def read
state.contents
end
def to_s
pathname.to_s
end
def file?
state.file?
end
private
def state
file_system.state(pathname.to_s)
end
end # FakePathname
class FileSystem
include Adamantium, Concord.new(:file_states)
def state(filename)
file_states.fetch(filename, FileState::DOES_NOT_EXIST)
end
def path(filename)
FakePathname.new(self, Pathname.new(filename))
end
end # FileSystem
end # MutantSpec