text: /*
   * Copyright (c) Facebook, Inc. and its affiliates.
   *
   * 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 <folly/AtomicBitSet.h>
  
  #include <folly/portability/GFlags.h>
  #include <folly/portability/GTest.h>
  
  #include <glog/logging.h>
  
  namespace folly {
  namespace test {
  
  TEST(AtomicBitSet, Simple) {
    constexpr size_t kSize = 1000;
    AtomicBitSet<kSize> bs;
  
    EXPECT_EQ(kSize, bs.size());
  
    for (size_t i = 0; i < kSize; ++i) {
      EXPECT_FALSE(bs[i]);
    }
  
    bs.set(42);
    for (size_t i = 0; i < kSize; ++i) {
      EXPECT_EQ(i == 42, bs[i]);
    }
  
    bs.set(43);
    for (size_t i = 0; i < kSize; ++i) {
      EXPECT_EQ((i == 42 || i == 43), bs[i]);
    }
  
    bs.reset(42);
    for (size_t i = 0; i < kSize; ++i) {
      EXPECT_EQ((i == 43), bs[i]);
    }
  
    bs.reset(43);
    for (size_t i = 0; i < kSize; ++i) {
      EXPECT_FALSE(bs[i]);
    }
  }
  
  } // namespace test
  } // namespace folly
  
  int main(int argc, char* argv[]) {
    testing::InitGoogleTest(&argc, argv);
    gflags::ParseCommandLineFlags(&argc, &argv, true);
    return RUN_ALL_TESTS();
  }
  