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Contents
require 'spec_helper'
RSpec.describe Yaks::Primitivize do
subject(:primitivizer) { described_class.create }
describe '.create' do
it 'should map String, true, false, nil, numbers to themselves' do
[
'hello',
true,
false,
nil,
100,
99.99,
-95.33333
].each do |object|
expect(primitivizer.call(object)).to eql object
end
end
it 'should stringify symbols' do
expect(primitivizer.call(:foo)).to eql 'foo'
end
it 'should recursively handle hashes' do
expect(primitivizer.call(
:foo => {:wassup => :friends, 123 => '456'}
)).to eql('foo' => {'wassup' => 'friends', 123 => '456'})
end
it 'should handle arrays recursively' do
expect(primitivizer.call(
[:foo, [:wassup, :friends], 123, '456']
)).to eql( ['foo', ['wassup', 'friends'], 123, '456'] )
end
end
describe '#call' do
require 'ostruct'
let(:funny_object) {
OpenStruct.new('a' => 'b')
}
it 'should raise an error when passed an unkown type' do
def funny_object.inspect
"I am funny"
end
expect { primitivizer.call(funny_object) }.to raise_error "don't know how to turn OpenStruct (I am funny) into a primitive"
end
context 'with custom mapping' do
require 'matrix'
let(:primitivizer) do
described_class.new.tap do |p|
p.map Vector do |vec|
vec.map do |i|
call(i)
end.to_a
end
p.map Symbol do |sym|
sym.to_s.length
end
end
end
it 'should evaluate in the context of primitivize' do
expect( primitivizer.call( Vector[:foo, :baxxx, :bazz] ) ).to eql( [3, 5, 4] )
end
end
end
end
Version data entries
18 entries across 18 versions & 2 rubygems