Here is an example implementation of the EstateAgent class and the IEstateAgent interface in Java:
```java
import java.util.Arrays;
public class EstateAgent implements IEstateAgent {
@Override
public double EstateAgentSales(double[] propertySales) {
double totalSales = 0;
for (double sale : propertySales) {
totalSales += sale;
}
return totalSales;
}
@Override
public double EstateAgentCommission(double propertySales) {
return propertySales * 0.05; // Assume estate agent commission is 5%
}
@Override
public int TopEstateAgent(double[] totalSales) {
double maxSales = Double.MIN_VALUE;
int topAgent = -1;
for (int i = 0; i < totalSales.length; i++) {
if (totalSales[i] > maxSales) {
maxSales = totalSales[i];
topAgent = i;
}
}
return topAgent;
}
}
```
And here is an example of unit test cases in a separate test package:
```java
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class EstateAgentTest {
@Test
public void CalculateTotalSales_ReturnsTotalSales() {
EstateAgent estateAgent = new EstateAgent();
double[] propertySales = {100000, 200000, 300000};
double expectedTotalSales = 600000;
double actualTotalSales = estateAgent.EstateAgentSales(propertySales);
assertEquals(expectedTotalSales, actualTotalSales, 0);
}
@Test
public void CalculateTotalCommission_ReturnsCommission() {
EstateAgent estateAgent = new EstateAgent();
double propertySales = 500000;
double expectedCommission = 25000;
double actualCommission = estateAgent.EstateAgentCommission(propertySales);
assertEquals(expectedCommission, actualCommission, 0);
}
@Test
public void TopAgent_ReturnsTopPosition() {
EstateAgent estateAgent = new EstateAgent();
double[] totalSales = {500000, 700000, 300000};
int expectedTopPosition = 1;
int actualTopPosition = estateAgent.TopEstateAgent(totalSales);
assertEquals(expectedTopPosition, actualTopPosition);
}
}
```
Note that you will need to include the necessary testing framework in your project, such as JUnit, to run these unit tests.
Q.1.4 Make use of a class named EstateAgent that contains methods to calculate estate agent
sales, estate agent commission, and the top-performing estate agent. The EstateAgent
class must implement an IEstateAgent interface that contains the following:
public interface IEstateAgent {
double EstateAgentSales(double[] propertySales);
double EstateAgentCommission(double propertySales);
int TopEstateAgent(double[] totalSales);
}
Q.1.5 You are required to write unit tests for the application. Create a test package within the
application you created, which will contain the necessary unit tests.
You are required to write the following unit tests:
Test Name Test Purpose
CalculateTotalSales_ReturnsTotalSales() To supply the property sales to the
estate agent sales method. The test
will determine that the correct total
sales value is returned from the estate
agent sales method.
CalculateTotalCommission_ReturnsCommission() To supply a total property sales
amount to the estate agent
commission method. The test will
determine that the correct estate
agent commission has been
calculated.
TopAgent_ReturnsTopPosition() To supply total sales for each estate
agent to the top estate agent method.
The test will determine the top selling
total property sales for the estate
agent..INCLUDE import method.In java.
1 answer