### Question:
Ramp extends TransferFunction implements Serializable { @Override public double getOutput(double net) { if (net < this.xLow) return this.yLow; else if (net > this.xHigh) return this.yHigh; else return (double) (slope * net); } Ramp();  Ramp(double slope, double xLow, double xHigh, double yLow,
			double yHigh);  Ramp(Properties properties); @Override double getOutput(double net); double getXLow(); void setXLow(double x); double getXHigh(); void setXHigh(double x); double getYLow(); void setYLow(double y); double getYHigh(); void setYHigh(double y);  }### Answer:
@Test public void testgetOutput() { double result = instance.getOutput(input); assertEquals(expected, result, 0.0); }
@Test public void testgetOutputwthProperties() { Properties properties = new Properties(); properties.setProperty("transferFunction.slope", 1d); properties.setProperty("transferFunction.yHigh", .9d); properties.setProperty("transferFunction.yLow", .3d); properties.setProperty("transferFunction.xHigh", .8d); properties.setProperty("transferFunction.xLow", .6d); instance = new Ramp(properties); double result = instance.getOutput(input); assertEquals(expected, result, 0.0); }