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Contents
module Paperclip
module Shoulda
module Matchers
# Ensures that the given instance or class validates the presence of the
# given attachment.
#
# describe User do
# it { should validate_attachment_presence(:avatar) }
# end
def validate_attachment_presence(name)
ValidateAttachmentPresenceMatcher.new(name)
end
class ValidateAttachmentPresenceMatcher
def initialize(attachment_name)
@attachment_name = attachment_name
end
def matches?(subject)
@subject = subject
@subject = subject.new if subject.class == Class
error_when_not_valid? && no_error_when_valid?
end
def failure_message
"Attachment #{@attachment_name} should be required"
end
def failure_message_when_negated
"Attachment #{@attachment_name} should not be required"
end
alias negative_failure_message failure_message_when_negated
def description
"require presence of attachment #{@attachment_name}"
end
protected
def error_when_not_valid?
@subject.send(@attachment_name).assign(nil)
@subject.valid?
@subject.errors[:"#{@attachment_name}"].present?
end
def no_error_when_valid?
@file = StringIO.new(".")
@subject.send(@attachment_name).assign(@file)
@subject.valid?
expected_message = [
@attachment_name.to_s.titleize,
I18n.t(:blank, scope: [:errors, :messages])
].join(" ")
@subject.errors.full_messages.exclude?(expected_message)
end
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems