AOC 2021 - test day1 part1

test-aoc2021-day1-part1.cc

#include "trivial.h"

#include <gtest/gtest.h>
#include <sstream>

TEST(TrivialTest, Simple) {
  std::vector<std::pair<std::string, uint32_t>> inputs = {
      {"", 0},                // empty input 0 increasing
      {"0", 0},               // single element 0 increasing
      {"0 1", 1},             // two elements, with increase
      {"0 1 0 1 0 1 0 1", 4}, // alternating, 4 repetitions
      {"0 0 0 0 0 0", 0},     // monotonic, no increase
      {"0 1 2 3", 3},         // increasing sequence - 3 increases
      {"3 2 1 0", 0},         // decreasing sequence - 0 increases
  };

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