1 files changed, 48 insertions, 0 deletions
diff --git a/test/fastdom-promised-test.js b/test/fastdom-promised-test.js
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+/*global suite, setup, test, assert, sinon, fastdomPromised*/
+/*jshint maxlen:false*/
+
+suite('fastdom-promised', function() {
+  var fastdom;
+
+  setup(function() {
+    fastdom = window.fastdom.extend(fastdomPromised);
+  });
+
+  test('it returns a Promise that resolves after the task is run', function(done) {
+    var spy = sinon.spy();
+
+    fastdom.measure(spy)
+      .then(function() {
+        sinon.assert.calledOnce(spy);
+        done();
+      });
+  });
+
+  test('promises can be returned from tasks', function() {
+    var spy1 = sinon.spy();
+    var spy2 = sinon.spy();
+
+    return fastdom.measure(function() {
+        spy1();
+        return fastdom.mutate(spy2);
+      })
+
+      .then(function() {
+        sinon.assert.calledOnce(spy1);
+        sinon.assert.calledOnce(spy2);
+        assert.isTrue(spy1.calledBefore(spy2));
+      });
+  });
+
+  test('calling `fastdom.clear(promise)` works', function(done) {
+    var spy = sinon.spy();
+    var task = fastdom.measure(spy);
+
+    fastdom.clear(task);
+
+    requestAnimationFrame(function() {
+      sinon.assert.notCalled(spy);
+      done();
+    });
+  });
+});