--- /dev/null
+/*
+ * Copyright 2015 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+#include <folly/futures/Future.h>
+
+using namespace folly;
+
+TEST(Poll, ready) {
+ Promise<int> p;
+ auto f = p.getFuture();
+ p.setValue(42);
+ EXPECT_EQ(42, f.poll().value().value());
+}
+
+TEST(Poll, notReady) {
+ Promise<int> p;
+ auto f = p.getFuture();
+ EXPECT_FALSE(f.poll().hasValue());
+}
+
+TEST(Poll, exception) {
+ Promise<void> p;
+ auto f = p.getFuture();
+ p.setWith([] { throw std::runtime_error("Runtime"); });
+ EXPECT_TRUE(f.poll().value().hasException());
+}