### Question:
Step extends TransferFunction implements Serializable { @Override public double getOutput(double net) { if (net > 0d) return yHigh; else return yLow; } Step();  Step(Properties properties); @Override double getOutput(double net); double getYHigh(); void setYHigh(double yHigh); double getYLow(); void setYLow(double yLow); Properties getProperties();  }### Answer:
@Test public void testGetOutput() { double result = instance.getOutput(net); assertEquals(expected, result, 0.0); }