assertEquals(String.format("2 to the %d should equal %d; actual value was %d", input, expectedOutput, actualOutput), expectedOutput, actualOutput);
input = 1;
expectedOutput = 2;
actualOutput = g.twoToThePowerOf(input);
assertEquals(String.format("2 to the %d should equal %d; actual value was %d", input, expectedOutput, actualOutput), expectedOutput, actualOutput);
input = 2;
expectedOutput = 4;