Setup UI testing (#720)

* default sequencer ui test

* default step ui test suite

* intermediate step ui test

* preview ui test suite

* url methods test suite

* add set url params method test suite

* argument call tests

* test directory refactor

* travis fix

spec/defaultHtmlSequencerUi.spec.js

@@ -0,0 +1,42 @@
+describe('Default sequencer HTML', function() {
+
+  var DefaultHtmlSequencerUi = require('../examples/lib/defaultHtmlSequencerUi')
+  var sequencer = require('../src/ImageSequencer')()
+  var defaultHtmlSequencerUi;
+
+  beforeEach(()=>{
+    defaultHtmlSequencerUi = new DefaultHtmlSequencerUi(sequencer)
+
+    spyOn(defaultHtmlSequencerUi,'onLoad')
+    spyOn(defaultHtmlSequencerUi,'selectNewStepUi')
+    spyOn(defaultHtmlSequencerUi,'removeStepUi')
+    spyOn(defaultHtmlSequencerUi,'addStepUi')
+    spyOn(defaultHtmlSequencerUi,'importStepsFromUrlHash')
+
+    defaultHtmlSequencerUi.onLoad()
+    defaultHtmlSequencerUi.selectNewStepUi()
+    defaultHtmlSequencerUi.addStepUi()
+    defaultHtmlSequencerUi.removeStepUi()
+    defaultHtmlSequencerUi.importStepsFromUrlHash()
+  })
+
+  it('load default ui', function() {
+    expect(defaultHtmlSequencerUi.onLoad).toHaveBeenCalled()
+  })
+
+  it('select step ui', function() {
+    expect(defaultHtmlSequencerUi.selectNewStepUi).toHaveBeenCalled()
+  })
+
+  it('add step ui', function() {
+    expect(defaultHtmlSequencerUi.addStepUi).toHaveBeenCalled()
+  })
+
+  it('remove step ui', function() {
+    expect(defaultHtmlSequencerUi.removeStepUi).toHaveBeenCalled()
+  })
+
+  it('import options from url', function() {
+    expect(defaultHtmlSequencerUi.importStepsFromUrlHash).toHaveBeenCalled()
+  })
+})