#include <gtest/gtest.h>
#include "mocks/MockDDS.h"

TEST(DataTopicSmokeGTest, Format) {
  char buf[64];
  snprintf(buf, sizeof(buf), "%d-%s", 42, "abc");
  EXPECT_STREQ(buf, "42-abc");
}

TEST(DataTopicSmokeGTest, MockDDSTopicFlow) {
  MockDDS::clear_all();
  MockDDS::publish("data/topic", "hello");
  auto r1 = MockDDS::take_last("data/topic");
  auto p1 = r1.substr(r1.find(':') + 1);
  EXPECT_EQ(p1, "hello");
  MockDDS::publish("data/topic", "world");
  auto r2 = MockDDS::take_last("data/topic");
  auto p2 = r2.substr(r2.find(':') + 1);
  EXPECT_EQ(p2, "world");
  // check sequence increment
  auto s1 = std::stoul(r1.substr(0, r1.find(':')));
  auto s2 = std::stoul(r2.substr(0, r2.find(':')));
  EXPECT_LT(s1, s2);
}