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public class DolarConverterService {
	
	public Double covertToDolar(DolarPojo dolar,Double value) {
		
		return value/dolar.getDolarValue();
	}

}

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class DolarConverterServiceTest {

	@Test //Anotacion
	void result_one_when_value_is_equals_dolar() {
		
		//1. Preparación
		DolarService dolarService = Mockito.mock(DolarService.class);	
		Mockito.when(dolarService.getDolarValue(DivisasEnum.MXN)).thenReturn(new DolarPojo(19.3,new Date()));
		
		//2. Ejecución

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public class DolarConverterService {
	
	public Double covertToDolar(DolarPojo dolar,Double value) {
		
		return null;
	}

}

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public enum DivisasEnum {
	MXN,CAD,EURO
}

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public class DolarPojo {
	
	Double dolarValue;
	Date date;
	
	public DolarPojo() {
		super();
		
	}
	

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<dependencies>
	
		<dependency>
			<groupId>org.junit.jupiter</groupId>
			<artifactId>junit-jupiter-api</artifactId>
			<version>5.7.1</version>
			<scope>test</scope>
		</dependency>

		<dependency>

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insert into tasks (description,status,creation_date)values('buy cereal',0, NOW());
insert into tasks (description,status,creation_date)values('study math',0, NOW());
insert into tasks (description,status,creation_date)values('save money',1, NOW());
insert into tasks (description,status,creation_date)values('buy apples',0, NOW());

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@RestController
@RequestMapping (value="todolist")
public class ToDoList {
	
	@Autowired
	private ITaskService taskService;

	@GetMapping(value="tasks")
	public List<Task> getTasks() {
		return taskService.getTask();

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public interface ITaskService {

	public List<Task> getTask();
	
}

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public interface ITaskDao extends CrudRepository<Task, Long> {

}