import org.junit.jupiter.api.Assertions; import org.junit.jupiter.api.Test; import pl.konrad.StringCalculator; public class StringCalculatorTest { StringCalculator calc = new StringCalculator(); @Test public void testStringCalculator(){ Assertions.assertEquals(0,calc.add("")); Assertions.assertEquals(1,calc.add("1")); Assertions.assertEquals(3,calc.add("1,2")); Assertions.assertEquals(24,calc.add("6,6,6,6")); Assertions.assertEquals(100,calc.add("20,10,5,5,5,5,5,5,5,5,5,5,5,5,5,5")); } }