modify gist handler for testing

test/gist-handler-test.js

 'use strict'
-
-var test = require('tape')
-
-var GistHandler = require('../src/lib/gist-handler')
-
-test('gistHandler.handleLoad with no gist param', function (t) {
-  t.plan(1)
-
-  var gistHandler = new GistHandler({})
-
-  var params = {}
-  var result = gistHandler.handleLoad(params, null)
-
-  t.equal(result, false)
-})
-
-test('gistHandler.handleLoad with blank gist param, and invalid user input', function (t) {
-  t.plan(3)
-
-  var fakeWindow = {prompt: function (title, message, input, cb) {
-    t.ok(message)
-    t.ok(message.match(/gist/i))
-    cb('invalid')
-  }}
-
-  var gistHandler = new GistHandler(fakeWindow)
-
-  var params = {'gist': ''}
-  var result = gistHandler.handleLoad(params, null)
-
-  t.equal(result, true)
-})
-
-test('gistHandler.handleLoad with blank gist param, and valid user input', function (t) {
-  t.plan(4)
-
-  var fakeWindow = {prompt: function (title, message, input, cb) {
-    t.ok(message)
-    t.ok(message.match(/gist/i))
-    cb('Beef1234')
-  }}
-
-  var cb = function (gistId) {
-    t.equal(gistId, 'Beef1234')
+var modalDialogCustom
+if (typeof window !== 'undefined') {
+  modalDialogCustom = require('../app/ui/modal-dialog-custom')
+}
+// ^ this class can be load in a non browser context when running node unit testing.
+// should not load UI in that case
+
+// Allowing window to be overriden for testing
+function GistHandler (_window) {
+  if (_window !== undefined) {
+    modalDialogCustom = _window
   }
 
-  var gistHandler = new GistHandler(fakeWindow)
-
-  var params = {'gist': ''}
-  var result = gistHandler.handleLoad(params, cb)
-
-  t.equal(result, true)
-})
-
-test('gistHandler.handleLoad with gist param', function (t) {
-  t.plan(2)
-
-  var gistHandler = new GistHandler({})
-
-  var params = {'gist': 'abc'}
-
-  var cb = function (gistId) {
-    t.equal(gistId, 'abc')
+  this.handleLoad = function (params, cb) {
+    if (!cb) cb = () => {}
+    var loadingFromGist = false
+    var gistId
+    if (params['gist'] === '') {
+      loadingFromGist = true
+      modalDialogCustom.prompt(
+        null,
+        'Enter the URL or ID of the Gist you would like to load.',
+        null,
+        target => {
+          if (target !== '') {
+            gistId = getGistId(target)
+            if (gistId) {
+              cb(gistId)
+            }
+          }
+        }
+      )
+      return loadingFromGist
+    } else {
+      gistId = params['gist']
+      loadingFromGist = !!gistId
+    }
+    if (loadingFromGist) {
+      cb(gistId)
+    }
+    return loadingFromGist
   }
 
-  var result = gistHandler.handleLoad(params, cb)
+  function getGistId (str) {
+    var idr = /[0-9A-Fa-f]{8,}/
+    var match = idr.exec(str)
+    return match ? match[0] : null
+  }
+}
 
-  t.equal(result, true)
-})
+module.exports = GistHandler