genish.js/test/data-test.js

gen~ in js

/* global describe it */
var assert = require('assert')
var genlib = require( '../dist/index.js' )

var gen = genlib.gen
var data = genlib.data
var peek = genlib.peek

describe( 'data + peek', ()=>{
  it( 'should return the value of index data[2] (49) when requesting it via peek', ()=> {
    let answer = 49,
        d = data( [ 0,0,49 ] ),
        p = peek( d, 2, { mode:'samples' }),
        out = gen.createCallback( p, 16  ),
        result

    result = out()

    assert.equal( result, answer )
  })

  it( 'should return the value of 49 when indexing using phase w/ peek', ()=> {
    let answer = 49,
        _d = new Float32Array( 512 ),
        d,p,out,result

    _d[2] = 49
    d = data( _d )

    // look at 3/512 to accommodate zero-indexing...
    p = peek( d, 3/512, { mode:'phase', interp:'none' } ) 
    out = gen.createCallback( p, 2048, true )

    result = out()

    assert.equal( result, answer )
  })
})