@quartic/bokehjs
Version:
Interactive, novel data visualization
113 lines (79 loc) • 4.05 kB
text/coffeescript
{expect} = require "chai"
utils = require "../../utils"
{Collections} = utils.require "base"
{StepInterpolator} = utils.require('models/transforms/step_interpolator')
{ColumnDataSource} = utils.require('models/sources/column_data_source')
describe "step_interpolator_transform module", ->
source = {start: 0, end: 10}
target = {start: 20, end: 80}
generate_interpolator_ColumnDataSource = ->
new StepInterpolator({
x: 'var1'
y: 'var2'
data: new ColumnDataSource({
data: {var1: [0, 5, 15], var2: [10, 20, 30]}
})
})
generate_interpolator_inline = ->
new StepInterpolator({
x: [0, 5, 15]
y: [10, 20, 30]
})
describe "creation with ColumnDataSource ranges", ->
transform = generate_interpolator_ColumnDataSource()
it "should return control points", ->
expect(transform.compute(0)).to.be.equal 10
expect(transform.compute(5)).to.be.equal 20
it "should step interpolate before", ->
transform.mode = 'before'
it "should linearly interpolate between control points", ->
expect(transform.compute(2)).to.be.equal 20
it "should linearly interpolate a vector of points", ->
expect(transform.v_compute([0, 2, 6])).to.be.deep.equal new Float64Array [20, 20, 30]
it "should map to a Float64Array", ->
expect(transform.v_compute([-1,0,5,10,11])).to.be.instanceof Float64Array
it "should step interpolate after", ->
transform.mode = 'after'
it "should linearly interpolate between control points", ->
expect(transform.compute(2)).to.be.equal 10
it "should linearly interpolate a vector of points", ->
expect(transform.v_compute([0, 2, 6])).to.be.deep.equal new Float64Array [10, 10, 20]
it "should map to a Float64Array", ->
expect(transform.v_compute([-1,0,5,10,11])).to.be.instanceof Float64Array
it "should step interpolate center", ->
transform.mode = 'center'
it "should linearly interpolate between control points", ->
expect(transform.compute(2)).to.be.equal 10
it "should linearly interpolate a vector of points", ->
expect(transform.v_compute([0, 2, 6])).to.be.deep.equal new Float64Array [10, 10, 20]
it "should map to a Float64Array", ->
expect(transform.v_compute([-1,0,5,10,11])).to.be.instanceof Float64Array
describe "creation with inline ranges", ->
transform = generate_interpolator_inline()
it "should return control points", ->
expect(transform.compute(0)).to.be.equal 10
expect(transform.compute(5)).to.be.equal 20
it "should step interpolate before", ->
transform.mode = 'before'
it "should linearly interpolate between control points", ->
expect(transform.compute(2)).to.be.equal 20
it "should linearly interpolate a vector of points", ->
expect(transform.v_compute([0, 2, 6])).to.be.deep.equal new Float64Array [20, 20, 30]
it "should map to a Float64Array", ->
expect(transform.v_compute([-1,0,5,10,11])).to.be.instanceof Float64Array
it "should step interpolate after", ->
transform.mode = 'after'
it "should linearly interpolate between control points", ->
expect(transform.compute(2)).to.be.equal 10
it "should linearly interpolate a vector of points", ->
expect(transform.v_compute([0, 2, 6])).to.be.deep.equal new Float64Array [10, 10, 20]
it "should map to a Float64Array", ->
expect(transform.v_compute([-1,0,5,10,11])).to.be.instanceof Float64Array
it "should step interpolate center", ->
transform.mode = 'center'
it "should linearly interpolate between control points", ->
expect(transform.compute(2)).to.be.equal 10
it "should linearly interpolate a vector of points", ->
expect(transform.v_compute([0, 2, 6])).to.be.deep.equal new Float64Array [10, 10, 20]
it "should map to a Float64Array", ->
expect(transform.v_compute([-1,0,5,10,11])).to.be.instanceof Float64Array