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module QA
module Page
class View
attr_reader :path, :elements
def initialize(path, elements)
@path = path
@elements = elements
end
def pathname
@pathname ||= Pathname.new(File.join(__dir__, '../../../', @path))
.cleanpath.expand_path
end
def errors
unless pathname.readable?
return ["Missing view partial `#{pathname}`!"]
end
##
# Reduce required elements by streaming view and making assertions on
# elements' existence.
#
@missing ||= @elements.dup.tap do |elements|
File.foreach(pathname.to_s) do |line|
elements.reject! { |element| element.matches?(line) }
end
end
@missing.map do |missing|
"Missing element `#{missing.name}` in `#{pathname}` view partial!"
end
end
def self.evaluate(&block)
Page::View::DSL.new.tap do |evaluator|
evaluator.instance_exec(&block) if block_given?
end
end
class DSL
attr_reader :elements
def initialize
@elements = []
end
def element(name, pattern = nil)
@elements.push(Page::Element.new(name, pattern))
end
end
end
end
end
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