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Versions: 16
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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 negative_failure_message
"Attachment #{@attachment_name} should not be required"
end
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?
@subject.errors[:"#{@attachment_name}"].blank?
end
end
end
end
end
Version data entries
16 entries across 16 versions & 2 rubygems