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downlinkmax

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downlinkMax is a 0.26KB Network Information API polyfill for navigator.connection.downlinkMax written in both CoffeeScript and JavaScript with AMD support.

github.com/daniellmb/downlinkmax

daniellmb/downlinkmax

191 lines (162 loc) • 4.01 kB
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### @file ## Responsibilities - unit test downlinkMax.coffee @author Daniel Lamb <dlamb.open.source@gmail.com> ### describe 'downlinkmax.coffee', -> org = window.navigator arrange = (obj) -> # arrange global environment window.navigator = obj afterEach -> # reset global environment window.navigator = org it 'should have a working test harness', -> # arrange # act # assert expect(yes).not.toBe no it 'should exist', -> # arrange # act # assert expect(typeof downlinkmax).toBe 'function' describe 'navigator.connection supported', -> beforeEach -> arrange connection: downlinkMax: 'foo' it 'should return the API value', -> # arrange # act result = downlinkmax() # assert expect(result).toBe 'foo' describe 'navigator.mozConnection supported', -> beforeEach -> arrange mozConnection: downlinkMax: 'bar' it 'should return the API value', -> # arrange # act result = downlinkmax() # assert expect(result).toBe 'bar' describe 'navigator.webkitConnection supported', -> beforeEach -> arrange webkitConnection: downlinkMax: 'baz' it 'should return the API value', -> # arrange # act result = downlinkmax() # assert expect(result).toBe 'baz' describe 'API not supported', -> beforeEach -> arrange {} it 'should return Infinity', -> # arrange # act result = downlinkmax() # assert expect(result).toBe Infinity describe 'connection.bandwidth supported', -> beforeEach -> arrange connection: bandwidth: 1 # in MB/s it "should convert MB/s to Mbit/s", -> # arrange # act result = downlinkmax() # assert expect(result).toBe 8 describe 'connection.type supported', -> it 'should map the type none', -> # arrange arrange connection: type: 'none' # act result = downlinkmax() # assert expect(result).toBe 0 it 'should map the type 2g', -> # arrange arrange connection: type: '2g' # act result = downlinkmax() # assert expect(result).toBe 0.134 it 'should map the type bluetooth', -> # arrange arrange connection: type: 'bluetooth' # act result = downlinkmax() # assert expect(result).toBe 2 it 'should map the type cellular', -> # arrange arrange connection: type: 'cellular' # act result = downlinkmax() # assert expect(result).toBe 2 it 'should map the type 3g', -> # arrange arrange connection: type: '3g' # act result = downlinkmax() # assert expect(result).toBe 8.95 it 'should map the type 4g', -> # arrange arrange connection: type: '4g' # act result = downlinkmax() # assert expect(result).toBe 100 it 'should map the type ethernet', -> # arrange arrange connection: type: 'ethernet' # act result = downlinkmax() # assert expect(result).toBe 550 it 'should map the type wifi', -> # arrange arrange connection: type: 'wifi' # act result = downlinkmax() # assert expect(result).toBe 600 it 'should map the type other', -> # arrange arrange connection: type: 'other' # act result = downlinkmax() # assert expect(result).toBe Infinity it 'should map the type unknown', -> # arrange arrange connection: type: 'unknown' # act result = downlinkmax() # assert expect(result).toBe Infinity it 'should map any type', -> # arrange arrange connection: type: 'foobarbaz' # act result = downlinkmax() # assert expect(result).toBe Infinity