progress bar

test/view/progress-bar.test.js

@@ -0,0 +1,32 @@
+let assert = require('assert')
+let ProgressBar = require('../../app/view/progress-bar')
+
+describe('PreloadProgress', () => {
+
+  it('should show', () => {
+    let bar = new ProgressBar()
+    bar.el.style.display = 'none'
+    bar.show()
+    assert.equal(bar.el.style.display, 'block')
+  })
+
+  it('should hide', () => {
+    let bar = new ProgressBar()
+    bar.el.style.display = 'block'
+    bar.hide()
+    assert.equal(bar.el.style.display, 'none')
+  })
+
+  it('should show on when preload is started', () => {
+    let bar = new ProgressBar()
+    assert.equal(bar.el.style.display, 'none')
+  })
+
+  it('should show the current percentage of the total preloading images', () => {
+    let bar = new ProgressBar()
+    bar.update(50)
+    assert.equal(bar.progressEl.style.width, '50%')
+  })
+
+})
+