text: /*
   * 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<Unit> p;
    auto f = p.getFuture();
    p.setWith([] { throw std::runtime_error("Runtime"); });
    EXPECT_TRUE(f.poll().value().hasException());
  }
  