Create a JUnit Test Case for the following provided java program. Provided below are the java program (ShannonsTheorem.java) for which the Junit will be tested against. Write a working Junit test case for Test_ShannonsTheorem.java and AllTests.java program. A starter code will be provided. Testing (Test_ShannonsTheorem.java), tests for negative values and positive values for both bandwidth and signal-to-noise ratio plus testing for max data rate results. Test_ShannonsTheorem.java should be tested for: Constructors, Accessors, Mutators, Behavior

ShannonsTheorem.java class (This class is complete, please work on the Junit)

package network;

import java.lang.Math;

import javax.swing.JOptionPane;

/**

* This class is intended to calculate the application of

* Shannon's Theorem for capacity, prompting users to

* enter a bandwidth and signal-to-noise ratio values

*/

public class ShannonsTheorem {

/**

* Bandwidth in hertz

*/

private double bandwidth;

/**

* Signal-to-noise ratio in decibels

*/

private double signalToNoise;

/**

* Default constructor

*/

public ShannonsTheorem() {

super();

}

/**

* Accessor for bandwidth field

* @return value for bandwidth in hertz

*/

public double getBandwidth() {

return bandwidth;

}

/**

* Mutator for bandwidth field

* @param bandwidth in hertz

*/

public void setBandwidth(double bandwidth) {

this.bandwidth = bandwidth;

}

/**

* Accessor for signalToNoise field

* @return value for signal to noise in decibels

*/

public double getSignalToNoise() {

return signalToNoise;

}

/**

* Mutator for signalToNoise field

* @param signalToNoise in decibels

*/

public void setSignalToNoise(double signalToNoise) {

this.signalToNoise = signalToNoise;

}

/**

* Accessor to get value of maximumDataRate from the results of bandwidth multiplied by signalToNoise ratio

* @return maximumDataRate in bits-per-second (bps)

*/

public double getMaximumDataRate() {

return getMaximumDataRate(bandwidth, signalToNoise);

}

/**

* Converts this class to a meaningfull string.

* @return Converts bandwidth, signalToNoise ratio and maximumDataRate into a readable string program.

*/

public String toString() {

StringBuilder builder = new StringBuilder();

builder.append("[");

builder.append("bandwidth = ").append(bandwidth).append(" hz,");

builder.append(" signalToNoise = ").append(signalToNoise).append(" db,");

builder.append(" maximumDataRate = ").append(String.format("%.2f",getMaximumDataRate())).append(" bps]");

return builder.toString();

}

/**

* Private method that calculates the maximum data rate

* @param bandwidth in hertz

* @param signalToNoise in decibels

* @return maximumDataRate in bits-per-second (bps)

*/

private double getMaximumDataRate(double bandwidth, double signalToNoise) {

return bandwidth * (Math.log(1+Math.pow(10, signalToNoise/10))/ Math.log(2));

}

/**

* Main method to run the application of Shannon's Theorem

* @param args

*/

public static void main (String args[]) {

ShannonsTheorem application = new ShannonsTheorem();

try {

JOptionPane.showMessageDialog(null, "Hey there! Welcome to the Shannon's Theorem calculator application.", "Hello and Welcome! Please start here.", JOptionPane.INFORMATION_MESSAGE);

double bandwidth = Double.parseDouble(JOptionPane.showInputDialog("Please enter the bandwidth (Hertz)"));

double signalToNoise = Double.parseDouble(JOptionPane.showInputDialog("Please enter the signal-to-noise ratio (Decibels)"));

application.setBandwidth(bandwidth);

application.setSignalToNoise(signalToNoise);

String message = String.format("The maximum data rate is %.2f %s",application.getMaximumDataRate(), "bits per second (bps)");

JOptionPane.showMessageDialog(null, message, "Shannon's Theorem Calculation Results", JOptionPane.INFORMATION_MESSAGE);

}

catch(Exception ex) {

JOptionPane.showMessageDialog(null, "Invalid number, try again! Please enter numerical values only.", "Error Detected!", JOptionPane.ERROR_MESSAGE);

}

} //end of method main

} //end of class

Complete the following Junit classes for the programs Test_ShannonsTheorem.java and AllTests.java.

Test_ShannonsTheorem.java

package networktest;

import junit.framework.*;

import network.ShannonsTheorem;

/**

* JUnit tests for the ShannonsTheorem class from the "network" project.

* @author

* @version 1.0.0

*/

public class Test_ShannonsTheorem extends TestCase {

public Test_ShannonsTheorem(String name) { super(name); }

public static Test suite() { return new TestSuite(Test_ShannonsTheorem.class); }

protected void setUp() throws Exception { System.out.println("Test_ShannonsTheorem Begin"); }

protected void tearDown() throws Exception { System.out.println("Test_ShannonsTheorem End"); }

/**

* Test the constructors.

*/

public void testConstructors() {

System.out.println("\tExecuting Test_ShannonsTheorem.testConstructors");

shannonsTheorem = new ShannonsTheorem();

assertNotNull("\t\tTest_ShannonsTheorem.testConstructors: ShannonsTheorem is null", ShannonsTheorem);

ShannonsTheorem = new ShannonsTheorem("Some attribute value");

assertNotNull("\t\tTest_ShannonsTheorem.testConstructors: ShannonsTheorem is null", ShannonsTheorem);

/*

* TODO: Add tests for your parameterized constructors here

*/

}

/**

* Test the accessors.

*/

public void testAccessors() {

System.out.println("\tExecuting Test_ShannonsTheorem.testAccessors");

shannonsTheorem = new ShannonsTheorem();

assertNotNull("\t\tTest_ShannonsTheorem.testAccessors: ShannonsTheorem is null", ShannonsTheorem);

/*

* TODO: Add tests for your accessors

*/

}

/**

* Test the mutators/modifiers.

*/

public void testMutators() {

System.out.println("\tExecuting Test_ShannonsTheorem.testMutators");

shannonsTheorem = new ShannonsTheorem();

assertNotNull("\t\tTest_ShannonsTheorem.testMutators: ShannonsTheorem is null", ShannonsTheorem);

/*

* TODO: Add tests for your mutators here.

*/

}

/**

* Test behaviors.

*/

public void testBehaviors() {

System.out.println("\tExecuting Test_ShannonsTheorem.testBehaviors");

shannonsTheorem = new ShannonsTheorem();

assertNotNull("\t\tTest_ShannonsTheorem.testBehaviors: ShannonsTheorem is null", ShannonsTheorem);

/*

* TODO: Add tests for you behavior here.

*/

}

/* STAND-ALONE ENTRY POINT ----------------------------------------- */

/**

* Main line for standalone operation.

* @param args Standard string command line parameters.

*/

public static void main(String[] args) {

System.out.println("Executing Test_ShannonsTheorem suite");

junit.textui.TestRunner.run(suite());

}

/* ATTRIBUTES ----------------------------------------------- */

private ShannonsTheorem shannonsTheorem = null;

} /* End of CLASS: Test_ShannonsTheorem.java */

AND AllTests.java

package networktest;

import junit.framework.*;

import networktest.*;

/**

* JUnit test class to execute all JUNIT tests for the "Shannons Theorem" project.

*

*/

public class AllTests extends TestCase {

public AllTests(String name) { super(name); }

public static Test suite() {

TestSuite suite = new TestSuite();

suite.addTest(Test_ShannonsTheorem.suite());

return suite;

}

/* STAND-ALONE ENTRY POINT ----------------------------------------- */

/**

* Main line for standalone operation.

* @param args Standard string command line parameters.

*/

public static void main(String[] args) {

System.out.println("Executing AllTests ...");

junit.textui.TestRunner.run(suite());

}

} /* End of CLASS: AllTests.java */