require 'spec_helper'
RSpec.describe OptimizelyServerSide::Experiment do
subject { OptimizelyServerSide::Experiment.new(variation_key = 'variation_key_a') }
describe '#compute' do
before do
subject.variation_one('variation_key_a') do
'experience a'
end
subject.variation_two('variation_key_b') do
'experience b'
end
end
context 'when variation_key is present' do
it 'should result variation b' do
expect(subject.compute).to eq('experience a')
end
end
context 'when variation_key is not present' do
subject { OptimizelyServerSide::Experiment.new(variation_key = '') }
it 'should be nil' do
expect(subject.compute).to be_nil
end
end
end
describe '#variation_one' do
let(:blk) { Proc.new { 'Hello!'} }
it 'returns a block passed' do
expect(subject.variation_one('foo', &blk)).to eq(blk)
end
end
describe '#variation_two' do
let(:blk) { -> {OpenStruct.new } }
it 'returns a block passed' do
expect(subject.variation_two('foo', &blk)).to eq(blk)
end
end
describe '#variation_three' do
let(:blk) { Proc.new { 'Hello!'} }
it 'returns a block passed' do
expect(subject.variation_three('foo', &blk)).to eq(blk)
end
end
describe '#store' do
context 'key accepts regular strings' do
let(:string_lambda) { -> {'I am a variation' } }
before do
subject.variation_one('foo', &string_lambda)
end
it 'has value as string' do
expect(subject.instance_variable_get(:@store)).to eq({'foo' => string_lambda})
end
end
context 'key accepts blocks / proc' do
let(:some_method) { Proc.new {|n| n*2 } }
before do
subject.variation_one('foo', &some_method)
end
it 'has value as proc' do
expect(subject.instance_variable_get(:@store)).to eq({'foo' => some_method})
end
end
context 'key accepts string, html or blocks / proc' do
let(:some_method) { Proc.new {|n| n*2 } }
let(:some_html_block) do
-> {'
Page Title
This is a Heading
This is a paragraph.
'
}
end
let(:string_blk) { -> { 'Hello!'} }
before do
subject.variation_one('foo', &some_method)
subject.variation_two('foo_two', &some_html_block)
subject.variation_three('foo_three', &string_blk)
end
it 'has value as proc' do
expect(subject.instance_variable_get(:@store)).to eq({'foo' => some_method, 'foo_two' => some_html_block, 'foo_three' => string_blk})
end
end
end
end