Add test for switch selectors

tests/lib/switch-selectors.js

@@ -1,9 +1,41 @@
 var tape = require("tape")
 
-// var switchesSelectors = require("../../lib/switches-selectors.js")
+var switchesSelectors = require("../../lib/switches-selectors.js")
 
+// @author darylteo
 tape("test switchesSelectors", function(t) {
-  t.fail()
+  // switchesSelectors relies on a higher level function callback
+  // should really be passed in instead so I'll leave it here as a TODO:
+  var pjax = {
+    onSwitch: function() {
+      console.log('Switched')
+    }
+  }
+
+  var tmpEl = document.implementation.createHTMLDocument()
+
+  // a div container is used because swapping the containers
+  // will generate a new element, so things get weird
+  // using "body" generates a lot of testling cruft that I don't
+  // want so let's avoid that
+  var container = document.createElement("div")
+  container.innerHTML = "<p>Original Text</p><span>No Change</span>"
+  document.body.appendChild(container)
+
+  var container2 = tmpEl.createElement("div")
+  container2.innerHTML = "<p>New Text</p><span>New Span</span>"
+  tmpEl.body.appendChild(container2)
+
+  switchesSelectors.bind(pjax)(
+    {}, // switches
+    {}, // switchesOptions
+    ['p'], //selectors,
+    tmpEl, // fromEl
+    document, // toEl,
+    {} // options
+  )
+
+  t.equals(container.innerHTML, '<p>New Text</p><span>No Change</span>', 'Elements correctly switched')
 
   t.end()
 })