cpp-lazy-stream/test/composed_views_test.cxx

//
//  composed_views_test.cxx
//  stream-test
//
//  Created by Sam Jaffe on 4/5/23.
//

#include "stream/streams.hpp"

#include "stream_helpers.h"
#include "stream_matchers.h"

TEST(ComposedView, FilterAndTransform) {
  std::vector<int> input{1, 2, 3, 4, 5};

  auto range = input | views::filter([](int i) { return i % 2 == 0; }) |
               views::transform([](int i) { return i / 2; });

  EXPECT_THAT(range, RangesEq(std::vector{1, 2}));
}