Add ArrayOf validator

lib/apipie/validator.rb

@@ -247,6 +247,50 @@ def description
  end
  end
 
+ class ArrayOfValidator < Apipie::Validator::BaseValidator
+ class << self
+ def for_class
+ :array_of_validator
+ end
+
+ def build(param_description, argument, options, block)
+ if argument == for_class
+ new(param_description, options, block)
+ end
+ end
+ end
+
+ def initialize(param_description, options, block)
+ super(param_description)
+ @items_type = options[:of]
+ @options = options
+ @block = block
+ end
+
+ def validate(values)
+ values ||= []
+ return false unless values.respond_to?(:each) && !values.is_a?(String)
+ values.all? { |v| validate_item(v) }
+ end
+
+ def validate_item(value)
+ Apipie::Validator::BaseValidator.find(
+ param_description,
+ items_type,
+ options,
+ block,
+ ).validate(value)
+ end
+
+ def description
+ "Must be array of #{items_type}s."
+ end
+
+ private
+
+ attr_reader :items_type, :param_description, :options, :block
+ end
+
  class ProcValidator < BaseValidator
 
  def initialize(param_description, argument)

spec/lib/validators/array_of_validator_spec.rb

@@ -0,0 +1,54 @@
+require "spec_helper"
+
+module Apipie::Validator
+ describe ArrayOfValidator do
+ let(:options) { { of: Integer } }
+ let(:validator) do
+ described_class.new(
+ "param_description",
+ options,
+ proc {},
+ )
+ end
+
+ class << self
+ def it_returns_true
+ it "returns true" do
+ expect(validator.validate(value)).to be_truthy
+ end
+ end
+
+ def it_returns_false
+ it "returns false" do
+ expect(validator.validate(value)).to be_falsey
+ end
+ end
+ end
+
+ describe "#validate" do
+ context "nil" do
+ let(:value) { nil }
+
+ it_returns_true
+ end
+
+ context "empty array" do
+ let(:value) { [] }
+
+ it_returns_true
+ end
+
+ context "contains desired type" do
+ let(:value) { [1] }
+
+ it_returns_true
+ end
+
+ context "contains wrong type" do
+ let(:value) { [1, "a"] }
+
+ it_returns_false
+ end
+ end
+ end
+end