Start view_tests for Blaze

Want to test view.onRendered and view.onMaterialized while nailing
down their API.

packages/blaze/package.js

@@ -39,7 +39,8 @@ Package.on_test(function (api) {
   api.use('tinytest');
   api.use('jquery'); // strong dependency, for testing jQuery backend
   api.use('blaze');
-  api.use(['test-helpers', 'underscore'], 'client');
+  api.use('test-helpers');
+  api.use('underscore');
 
-  // ...
+  api.add_files('view_tests.js');
 });

packages/blaze/view_tests.js

@@ -0,0 +1,31 @@
+if (Meteor.isClient) {
+
+  Tinytest.add("blaze - view - callbacks", function (test) {
+    var R = Blaze._ReactiveVar('foo');
+
+    var buf = '';
+
+    var v = Blaze.View(function () {
+      return R.get();
+    });
+
+    v.onViewCreated(function () {
+      buf += 'c';
+    });
+    v.onViewDestroyed(function () {
+      buf += 'd';
+    });
+
+    test.equal(buf, '');
+
+    var div = document.createElement("DIV");
+    Blaze.insert(Blaze.render(v), div);
+    test.equal(buf, 'c');
+    test.equal(canonicalizeHtml(div.innerHTML), "foo");
+
+    Blaze.remove(v);
+    test.equal(buf, 'cd');
+    test.equal(canonicalizeHtml(div.innerHTML), "");
+  });
+
+}