test ($calculator->too_high (40) == "Error: number too large to calculate", "The calculator can reject numbers too high to calculate"); //test to see if the calculator can return 40 test ($calculator->equals_fourty (40) == "XL", "The calculator can return the Roman number 40"); //test to see if the calculator can calculate the correct number of Xs test ($calculator->count_tens (30) == "XXX", "The calculator counts the correct number of tens 30"); test ($calculator->count_tens (20) == "XX", "The calculator counts the correct number of tens 20"); test ($calculator->count_tens (10) == "X", "The calculator counts the correct number of tens 10"); test ($calculator->count_tens (39) == "XXX", "The calculator counts the correct number of tens 39"); //test to see if calculator can return 9 test ($calculator->equals_nine (9) == "IX", "The calculator can return the Roman number 9"); //test to see if the calculator can return the correct number of Vs test ($calculator->count_fives (5) == "V", "The calculator counts the correct number of fives 5"); test ($calculator->count_fives (15) == "VVV", "The calculator counts the correct number of fives 15"); //test to see if calculator can return 4 test ($calculator->equals_four (4) == "IV", "The calculator can return the Roman number 4"); //test to see if the calculator can return the correct number of Is test ($calculator->count_ones (3) == "III", "The calculator counts the correct number of ones 3"); test ($calculator->count_ones (2) == "II", "The calculator counts the correct number of ones 2"); test ($calculator->count_ones (1) == "I", "The calculator counts the correct number of ones 1"); //test to reject 0 test ($calculator->reject_zero (0) == "The Romans never learned of zero", "The calculator can reject zero as input"); //test whole shebang test ($calculator->roman_numerals (0) == 3, "The calculator can calculate any number from 0 to 40");
