Tabacco unit test

Answer 1

To create a unit test for a Tobacco class, we can follow the steps below:

1. Define the Tobacco class with properties such as brand, type, and price.
2. Create test cases for the constructor to ensure that the properties are being set correctly.
3. Write test cases for any methods in the Tobacco class, such as a method to calculate the total price based on quantity.
4. Use assertions to verify that the expected results match the actual results in each test case.
5. Run the unit test to ensure that the Tobacco class is functioning as expected.

Below is an example of a unit test for a Tobacco class in Java using JUnit:

```java
import org.junit.Test;
import static org.junit.Assert.assertEquals;

public class TobaccoTest {

@Test
public void testTobaccoConstructor() {
Tobacco tobacco = new Tobacco("Marlboro", "Regular", 10.99);

assertEquals("Marlboro", tobacco.getBrand());
assertEquals("Regular", tobacco.getType());
assertEquals(10.99, tobacco.getPrice(), 0.001);
}

@Test
public void testCalculateTotalPrice() {
Tobacco tobacco = new Tobacco("Marlboro", "Regular", 10.99);

double totalPrice = tobacco.calculateTotalPrice(3);

assertEquals(32.97, totalPrice, 0.001);
}
}
```

In this test case, we are creating a Tobacco object with the brand "Marlboro", type "Regular", and price 10.99. We then test the constructor to ensure that the properties are set correctly. We also test a method to calculate the total price for a certain quantity of the tobacco product.

Make sure to have JUnit set up in your project and run the unit test to verify the functionality of the Tobacco class.