static int runTestCase(int casenum__) {
		switch (casenum__) {
		case 0: {
			int heads = 3;
			int legs = 8;
			int[] expected__ = { 2, 1 };

			return verifyCase(casenum__, expected__,
					new OnTheFarmDivTwo().animals(heads, legs));
		}
		case 1: {
			int heads = 10;
			int legs = 40;
			int[] expected__ = { 0, 10 };

			return verifyCase(casenum__, expected__,
					new OnTheFarmDivTwo().animals(heads, legs));
		}
		case 2: {
			int heads = 10;
			int legs = 42;
			int[] expected__ = {};

			return verifyCase(casenum__, expected__,
					new OnTheFarmDivTwo().animals(heads, legs));
		}
		case 3: {
			int heads = 1;
			int legs = 3;
			int[] expected__ = {};

			return verifyCase(casenum__, expected__,
					new OnTheFarmDivTwo().animals(heads, legs));
		}
		case 4: {
			int heads = 0;
			int legs = 0;
			int[] expected__ = { 0, 0 };

			return verifyCase(casenum__, expected__,
					new OnTheFarmDivTwo().animals(heads, legs));
		}

		// custom cases

		/*
		 * case 5: { int heads = ; int legs = ; int[] expected__ = ;
		 *
		 * return verifyCase(casenum__, expected__, new
		 * OnTheFarmDivTwo().animals(heads, legs)); }
		 */
		/*
		 * case 6: { int heads = ; int legs = ; int[] expected__ = ;
		 *
		 * return verifyCase(casenum__, expected__, new
		 * OnTheFarmDivTwo().animals(heads, legs)); }
		 */
		/*
		 * case 7: { int heads = ; int legs = ; int[] expected__ = ;
		 *
		 * return verifyCase(casenum__, expected__, new
		 * OnTheFarmDivTwo().animals(heads, legs)); }
		 */
		default:
			return -1;
		}
	}