TEST(Printer, HealthTransitionPrinter) {
  std::ostringstream changed;
  changed << HealthTransition::Changed;
  EXPECT_EQ("Changed", changed.str());

  std::ostringstream unchanged;
  unchanged << HealthTransition::Unchanged;
  EXPECT_EQ("Unchanged", unchanged.str());
}
TEST(Printer, HealthTransitionPrinter) {
  std::ostringstream changed;
  changed << HealthTransition::Changed;
  EXPECT_EQ("Changed", changed.str());

  std::ostringstream unchanged;
  unchanged << HealthTransition::Unchanged;
  EXPECT_EQ("Unchanged", unchanged.str());
}