static int runTestCase(int casenum) {
		switch (casenum) {
		case 0: {
			int seconds = 0;
			String expected__ = "0:0:0";

			return verifyCase(casenum, expected__, new Time().whatTime(seconds));
		}
		case 1: {
			int seconds = 3661;
			String expected__ = "1:1:1";

			return verifyCase(casenum, expected__, new Time().whatTime(seconds));
		}
		case 2: {
			int seconds = 5436;
			String expected__ = "1:30:36";

			return verifyCase(casenum, expected__, new Time().whatTime(seconds));
		}
		case 3: {
			int seconds = 86399;
			String expected__ = "23:59:59";

			return verifyCase(casenum, expected__, new Time().whatTime(seconds));
		}

		// custom cases

		/*
		 * case 4: {
		 * int seconds = ;
		 * String expected__ = ;
		 *
		 * return verifyCase(casenum, expected__, new Time().whatTime(seconds));
		 * }
		 */
		/*
		 * case 5: {
		 * int seconds = ;
		 * String expected__ = ;
		 *
		 * return verifyCase(casenum, expected__, new Time().whatTime(seconds));
		 * }
		 */
		/*
		 * case 6: {
		 * int seconds = ;
		 * String expected__ = ;
		 *
		 * return verifyCase(casenum, expected__, new Time().whatTime(seconds));
		 * }
		 */
		default:
			return -1;
		}
	}