public class CovidDatabaseTest {
    public static void main (String[] args) {
	System.out.println ("Testing starts");
	CovidDatabase db = new CovidDatabase() ;
	db.readCovidData("covid_data.csv");
	// check number of records, total infections, and total deaths
	assert db.countRecords() == 10346 : "database should have 10,346";
	
	assert db.getTotalDeaths() == 196696 : "Total deaths should be: 196,696";
	assert db.getTotalInfections() == 7032090 : "infections should be: 7,032,090";
	// check peak daily deaths for 5/5
	CovidEntry mostDeaths = db.peakDailyDeaths(5, 5);
	assert mostDeaths.getState().equals("PA") : "State with most deaths for 5/5 is PA";
	assert mostDeaths.getDailyDeaths() == 554 : "Deaths for 5/5 is PA: 554";
	// test other methods

	// Check highest deaths
	CovidEntry highestTX = db.peakDailyDeaths("TX");
	assert highestTX.getDailyDeaths() == 675 : "Highest texas deaths is: 675";

	// Most total deaths
	assert db.mostTotalDeaths().getTotalDeaths() == 25456 : "Highest deaths is 25456";
	assert db.mostTotalDeaths().getState().equals("NY") : "Highest deaths state: NY";

	// Peak daily deaths
	assert db.peakDailyDeaths("MI").getDailyDeaths() == 169 : "Highest MI Deaths: 169";
	assert db.peakDailyDeaths(5, 5).getDailyDeaths() == 554 : "Highest 5/5 deaths: PA";

	// Top ten deaths
	assert db.topTenDeaths(5, 5).size() == 10 : "Top ten deaths should be 10";  
	assert db.topTenDeaths(5, 5).get(0).getState().equals("PA")  : "First Top ten deaths should be PA";

	// Safe to open
	assert db.safeToOpen("MI").get(0).getDailyInfections() == 443 : "First entry should have 443 infections";  

	//list min daily infections
	assert db.listMinimumDailyInfections(6,12,1000).get(0).getState().equals("TX") : "First entry should be TX";  

	System.out.println ("Testing ends");
    }
}