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#!/usr/bin/env ruby
require 'kwalify'
require 'yaml'
## load schema definition
schema = YAML.load_file('answers-schema.yaml')
## create validator for answers
validator = Kwalify::Validator.new(schema) { |value, rule, path, errors|
case rule.name
when 'Answer'
if value['answer'] == 'bad'
reason = value['reason']
if !reason || reason.empty?
msg = "reason is required when answer is 'bad'."
errors << Kwalify::ValidationError.new(msg, path)
end
end
end
}
## load YAML document
input = ARGF.read()
document = YAML.load(input)
## validate
errors = validator.validate(document)
if errors.empty?
puts "Valid."
else
puts "*** INVALID!"
errors.each do |error|
# error.class == Kwalify::ValidationError
puts " - [#{error.path}] : #{error.message}"
end
end
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