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# frozen_string_literal: true
require 'test_helper'
class PredicatesTest < Minitest::Spec
let(:kklass) do
Class.new do
extend Enumerize
def self.c?; end
end
end
let(:object) { kklass.new }
it 'creates predicate methods' do
kklass.enumerize(:foo, in: %w(a b), predicates: true)
expect(object).must_respond_to :a?
expect(object).must_respond_to :b?
end
it 'creates predicate methods when enumerized values have dash in it' do
kklass.enumerize(:foo, in: %w(foo-bar bar-foo), predicates: true)
expect(object).must_respond_to :foo_bar?
expect(object).must_respond_to :bar_foo?
end
it 'creates predicate methods on multiple attribute' do
kklass.enumerize(:foo, in: %w(a b), predicates: true, multiple: true)
expect(object).must_respond_to :a?
expect(object).must_respond_to :b?
end
it 'checks values' do
kklass.enumerize(:foo, in: %w(a b), predicates: true)
object.foo = 'a'
expect(object.a?).must_equal true
expect(object.b?).must_equal false
end
it 'checks values on multiple attribute' do
kklass.enumerize(:foo, in: %w(a b), predicates: true, multiple: true)
object.foo << :a
expect(object.a?).must_equal true
expect(object.b?).must_equal false
end
it 'prefixes methods' do
kklass.enumerize(:foo, in: %w(a b), predicates: { prefix: 'bar' })
expect(object).wont_respond_to :a?
expect(object).wont_respond_to :b?
expect(object).must_respond_to :bar_a?
expect(object).must_respond_to :bar_b?
end
it 'accepts only option' do
kklass.enumerize(:foo, in: %w(a b), predicates: { only: :a })
expect(object).must_respond_to :a?
expect(object).wont_respond_to :b?
end
it 'accepts except option' do
kklass.enumerize(:foo, in: %w(a b), predicates: { except: :a })
expect(object).wont_respond_to :a?
expect(object).must_respond_to :b?
end
it 'warns if predicate method is already defined' do
assert_output(nil, /`c\?` is already defined/) do
kklass.enumerize(:bar, in: %w(a b c), predicates: true)
end
end
it 'does not warn if predicate has prefix and does not collide with defined method' do
assert_output(nil, '') do
kklass.enumerize(:bar, in: %w(a b c), predicates: { prefix: 'bar' })
end
end
it 'does not warn if predicate method is already defined but enumerize does not generate predicates' do
assert_output(nil, '') do
kklass.enumerize(:bar, in: %w(a b c))
end
end
end
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