Implementation of the pattern Builder v4 [closed]

Implementing the Builder pattern (fourth part) + Junit tests. Links to previous implementations of Builder-a: Part 1 http://clck.ru/8pke3 Part 2 http://clck.ru/8pkeF Part 3 http://clck.ru/8pknj

1) Abstract BaseCarBuilder class.

public abstract class BaseCarBuilder { public abstract void buildBody(); public abstract void buildColor(); } 

2) Car class.

 public class Car { public enum Color {RED, BLACK, WHITE} public enum Body {SEDAN, CABRIOLET, LIMOUSINE} private Body body; private Color color; private String name; public Car(String name) { this.name = name; } public String getName() { return name; } public Body getBody() { return body; } public void setBody(Body body) { this.body = body; } public Color getColor() { return color; } public void setColor(Color color) { this.color = color; } @Override public String toString() { return "Car{" + "body=" + body + ", color=" + color + ", name='" + name + '\'' + '}'; } } 

3) CarBuilderDirector class.

 public class CarBuilderDirector { private final BaseCarBuilder baseCarBuilder; public CarBuilderDirector(BaseCarBuilder baseCarBuilder) { this.baseCarBuilder = baseCarBuilder; } public void construct() { baseCarBuilder.buildBody(); baseCarBuilder.buildColor(); } } 

4) The VolvoBuilder class which inherits from BaseCarBuilder.

 public class VolvoBuilder extends BaseCarBuilder { private Car car; public VolvoBuilder() { car = new Car("Volvo"); defaultVolvoBuilder(); } public Car getCar() { return car; } @Override public void buildBody() { car.setBody(Car.Body.LIMOUSINE); } @Override public void buildColor() { car.setColor(Car.Color.BLACK); } private void defaultVolvoBuilder() { car.setColor(Car.Color.WHITE); car.setBody(Car.Body.SEDAN); } } 

5) Client class

 public class Client { public static void main(String[] args) { CarBuilderDirector director = null; VolvoBuilder volvoBuilder = new VolvoBuilder(); director = new CarBuilderDirector(volvoBuilder); director.construct(); System.err.println(volvoBuilder.getCar().toString()); } } 

Now the implementation of Junit tests. It was necessary to implement the following tests. These are my second junit tests.

Test number 1

 public class CarTest { @Test public void testWhiteSedanCarToString() { Car car = new Car("My Car"); car.setColor(Car.Color.WHITE); car.setBody(Car.Body.SEDAN); final String actual = car.toString(); final String expected = "Car{body=SEDAN, color=WHITE, name='My Car'}"; assertEquals(expected, actual); } } 

Test number 2 and 4

 public class VolvoBuilderTest { // тест № 2 @Test public void testCarBlackLimousine() { VolvoBuilder volvoBuilder = new VolvoBuilder(); volvoBuilder.buildColor(); volvoBuilder.buildBody(); String actualBody = String.valueOf(volvoBuilder.getCar().getBody()); String actualColor = String.valueOf(volvoBuilder.getCar().getColor()); assertEquals("BLACK", actualColor); assertEquals("LIMOUSINE", actualBody); } // тест № 4 @Test public void testWithoutBuildBodyAndWithoutBuildColor() { VolvoBuilder volvoBuilder = new VolvoBuilder(); final String expectedCar = "Car{body=SEDAN, color=WHITE, name='Volvo'}"; final String actualCar = volvoBuilder.getCar().toString(); assertEquals(expectedCar, actualCar); } // тест № 4 @Test public void testWithDirector_Construct() { VolvoBuilder volvoBuilder = new VolvoBuilder(); CarBuilderDirector director = new CarBuilderDirector(volvoBuilder); director.construct(); final String expectedCar = "Car{body=LIMOUSINE, color=BLACK, name='Volvo'}"; final String actualCar = volvoBuilder.getCar().toString(); assertEquals(expectedCar, actualCar); } } 

Test number 3

 import org.junit.Test; import static org.mockito.Mockito.*; public class CarBuilderDirectorTest { @Test public void testDirectorConstruct() { BaseCarBuilder mockBaseCarBuilder = mock(BaseCarBuilder.class); CarBuilderDirector director = new CarBuilderDirector(mockBaseCarBuilder); director.construct(); verify(mockBaseCarBuilder).buildColor(); verify(mockBaseCarBuilder).buildBody(); } }