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Contents
module Paperclip
module Shoulda
module Matchers
# Ensures that the given instance or class has an attachment with the
# given name.
#
# Example:
# describe User do
# it { should have_attached_file(:avatar) }
# end
def have_attached_file(name)
HaveAttachedFileMatcher.new(name)
end
class HaveAttachedFileMatcher
def initialize(attachment_name)
@attachment_name = attachment_name
end
def matches?(subject)
@subject = subject
@subject = @subject.class unless Class === @subject
responds? && has_column?
end
def failure_message
"Should have an attachment named #{@attachment_name}"
end
def failure_message_when_negated
"Should not have an attachment named #{@attachment_name}"
end
alias negative_failure_message failure_message_when_negated
def description
"have an attachment named #{@attachment_name}"
end
protected
def responds?
methods = @subject.instance_methods.map(&:to_s)
methods.include?(@attachment_name.to_s) &&
methods.include?("#{@attachment_name}=") &&
methods.include?("#{@attachment_name}?")
end
def has_column?
@subject.column_names.include?("#{@attachment_name}_file_name")
end
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems