kv_spec.rb

require 'spec_helper'

describe KV do
  describe '#set' do
    it 'assigns a value to the instance variable hash' do
      kv = KV.new
      kv.set('foo', 'bar')
      expect(kv.hash['foo'][Time.now.to_i]).to eq('bar')
    end
  end

  describe '#get' do
    context 'timestamp is not supplied' do
      it 'gets the value of the hash assigned' do
        kv = KV.new
        kv.set('foo', 'bar')
        sleep(1)
        kv.set('foo', 'bar2')
        expect(kv.get('foo')).to eq('bar2')
      end
    end

    context 'timestamp is suppied along with the key' do
      it 'gets the value of the key with time closest to the timestamp' do
        kv = KV.new
        kv.set('foo', 'bar')
        now = Time.now.to_i
        sleep(1)
        kv.set('foo', 'bar2')

        expect(kv.get('foo', now)).to eq('bar')
      end
    end

    context 'fuzzy matching' do
      it 'does something' do
        kv = KV.new
        now = Time.now.to_i
        kv.set('foo', 'bar')
        sleep(3)
        kv.set('foo', 'bar2')
        # Fetch the key 'foo' with the 'now' timestamp, plus 2 seconds
        expect(kv.get('foo', now + 2)).to eq('bar')
      end
    end
  end
end