Add a test for going to the all versions page

Also add a new test helper that matches a regex instead of text exactly
because timezones :(

Author: carols10cents

tests/.jshintrc

@@ -24,7 +24,8 @@
     "currentURL",
     "currentPath",
     "currentRouteName",
-    "hasText"
+    "hasText",
+    "matchesText"
   ],
   "node": false,
   "browser": false,

tests/acceptance/crate-test.js

@@ -21,3 +21,12 @@ test('visiting a crate page directly', function(assert) {
         assert.equal(document.title, 'nanomsg - Cargo: packages for Rust');
     });
 });
+
+test('navigating to the all versions page', function(assert) {
+    visit('/crates/nanomsg');
+    click('#crate-versions span.small a');
+
+    andThen(function() {
+        matchesText(assert, '.info', /All 12 versions of nanomsg since December \d+, 2014/);
+    });
+});

tests/helpers/matches-text.js

@@ -0,0 +1,11 @@
+import Ember from 'ember';
+
+export default Ember.Test.registerHelper('matchesText', function(app, assert, selector, expectedRegex) {
+    const $selected = findWithAssert(selector);
+    const $actual = $selected.text().trim().replace(/\s+/g, ' ');
+    assert.notEqual(
+        null,
+        $actual.match(expectedRegex),
+        `Text found ('${$actual}') did not match regex ('${expectedRegex}')`
+    );
+});

tests/helpers/start-app.js

@@ -2,6 +2,7 @@ import Ember from 'ember';
 import Application from '../../app';
 import config from '../../config/environment';
 import './has-text';
+import './matches-text';
 
 export default function startApp(attrs) {
     let application;