ger/test/ger/compact_esm_tests.coffee

Good Enough Recommendations (GER) is a collaborative filtering based recommendations engine built to be easy to use and integrate into your application.

ger_tests = (ESM) ->
  ns = global.default_namespace

  describe "compact ", ->

    describe "compact_database_thing_action_limit", ->
      it 'should truncate events on a thing to the set limit', ->
        init_ger(ESM)
        .then (ger) ->
          bb.all([
            ger.event(ns, 'p1','view','t1')
            ger.event(ns, 'p2','view','t1')
            ger.event(ns, 'p3','view','t1')

            ger.event(ns, 'p1','view','t2')
            ger.event(ns, 'p2','view','t2')
          ])
          .then( ->
            ger.count_events(ns)
          )
          .then( (count) ->
            count.should.equal 5
          )
          .then( ->
            ger.compact_database(ns, compact_database_thing_action_limit: 2, actions: ['view'])
          )
          .then( ->
            ger.compact_database(ns, compact_database_thing_action_limit: 2, actions: ['view'])
          )
          .then( ->
            ger.count_events(ns)
          )
          .then( (count) ->
            count.should.equal 4
          )

    describe "compact_database_person_action_limit", ->
      it 'should truncate events by a person to the set limit', ->
        init_ger(ESM)
        .then (ger) ->
          bb.all([
            ger.event(ns, 'p1','view','t1')
            ger.event(ns, 'p1','view','t2')
            ger.event(ns, 'p1','view','t3')
            ger.event(ns, 'p1','view','t4')
            ger.event(ns, 'p1','view','t5')

            ger.event(ns, 'p2','view','t2')
            ger.event(ns, 'p2','view','t3')
          ])
          .then( ->
            ger.count_events(ns)
          )
          .then( (count) ->
            count.should.equal 7
          )
          .then( ->
            ger.compact_database(ns, compact_database_person_action_limit: 2, actions: ['view'])
          )
          .then( ->
            ger.compact_database(ns, compact_database_person_action_limit: 2, actions: ['view'])
          )
          .then( ->
            ger.count_events(ns)
          )
          .then( (count) ->
            count.should.equal 4
          )



    it 'should not deadlock', ->
      init_ger(ESM)
      .then (ger) ->
        bb.all([
          ger.event(ns, 'p1','view','t1')
          ger.event(ns, 'p1','view','t2')
          ger.event(ns, 'p1','view','t3', created_at: yesterday) #this row should be deleted twice

          ger.event(ns, 'p2','view','t3')
          ger.event(ns, 'p3','view','t3')
        ])
        .then( ->
          ger.count_events(ns)
        )
        .then( (count) ->
          count.should.equal 5
        )
        .then( ->
          ger.compact_database(ns, {
            compact_database_thing_action_limit: 2,
            compact_database_person_action_limit: 2,
            actions: ['view']
          })
        )
        .then( ->
          ger.count_events(ns)
        )
        .then( (count) ->
          count.should.equal 4
        )

module.exports = ger_tests;