genish.js/tests/gen.accum.test.js

gen~ in js

'use strict'

let assert = require('assert'),
    genlib = require( '../dist/index.js' ), 
    gen    = genlib.gen,
    accum  = genlib.accum,
    input  = genlib.in

describe( 'accum', ()=>{
  it( 'should ramp to .5 with an increment of .1 after five executions', ()=> {
    let answer = .5,
        graph  = accum(.1),
        out    = gen.createCallback( graph, 2, true ),
        result = 0
    
    for( let i = 0; i < 5; i++ ) console.log( out() )
    
    result = out()
    
    assert.equal( result, answer )
  })

  //it( 'should return to its min value of 0 on the 10th execution with an increment of .1', ()=> {
  //  let answer = 0,
  //      graph  = accum(.1),
  //      out    = gen.createCallback( graph ),
  //      result = 0
    
  //  for( let i = 0; i < 9; i++ ) out()

  //  result = out()
  //  assert.equal( result, answer )
  //})

  it( 'should return to its min value of 0 when the inputs[1] = true', ()=> {
    let answer = .0,
        graph  = accum( .1, input() ),
        out    = gen.createCallback( graph, 2, true ),
        result = 0

    out(); out(); out();

    result = out( 1 )
    
    assert.equal( result, answer )

  })
})