Add a test for going to the all versions page

Author: carols10cents

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() {
+        hasText(assert, '.info', 'All 12 versions of nanomsg since December 7, 2014');
+    });
+});