test-aoc2021-day1-part2.cc

TEST(SlidingTest, Simple) {
  std::vector<std::pair<std::string, uint32_t>> inputs = {
      {"", 0},                                        // not enough elements for a window
      {"0 1", 0},                                     // not enough elements for a window
      {"0 1 0", 0},                                   // a single window
      {"0 0 0 0 0 0", 0},                             // monotonic, no increase
      {"0 1 2 3", 1},                                 // two windows, increasing
      {"3 2 1 0", 0},                                 // two windows, decreasing
      {"0 1 0 1 0 1", 2},                             // 1, 2, 1, 2 - two increasing
      {"199 200 208 210 200 207 240 269 260 263", 5}, // from aoc
  };

  for (auto &i : inputs) {
    std::stringstream s(i.first);
    EXPECT_EQ(count_increasing_windows(s), i.second) << " on input " << i.first;
  }
}