Mockito - İlk Uygulama
Mockito Framework'ün detaylarına geçmeden önce, bir uygulamanın işleyişini görelim. Bu örnekte, bazı hisse senetlerinin sahte fiyatını almak için bir Stok Hizmeti taklidi oluşturduk ve Portföy adlı bir java sınıfını test ettik.
Süreç aşağıda adım adım tartışılmaktadır.
Step 1 − Create a JAVA class to represent the Stock
File: Stock.java
public class Stock {
private String stockId;
private String name;
private int quantity;
public Stock(String stockId, String name, int quantity){
this.stockId = stockId;
this.name = name;
this.quantity = quantity;
}
public String getStockId() {
return stockId;
}
public void setStockId(String stockId) {
this.stockId = stockId;
}
public int getQuantity() {
return quantity;
}
public String getTicker() {
return name;
}
}
Step 2 − Create an interface StockService to get the price of a stock
File: StockService.java
public interface StockService {
public double getPrice(Stock stock);
}
Step 3 − Create a class Portfolio to represent the portfolio of any client
File: Portfolio.java
import java.util.List;
public class Portfolio {
private StockService stockService;
private List<Stock> stocks;
public StockService getStockService() {
return stockService;
}
public void setStockService(StockService stockService) {
this.stockService = stockService;
}
public List<Stock> getStocks() {
return stocks;
}
public void setStocks(List<Stock> stocks) {
this.stocks = stocks;
}
public double getMarketValue(){
double marketValue = 0.0;
for(Stock stock:stocks){
marketValue += stockService.getPrice(stock) * stock.getQuantity();
}
return marketValue;
}
}
Step 4 − Test the Portfolio class
Portföy sınıfını, içine bir hisse senedi hizmeti taklit ederek test edelim. Mock, Mockito tarafından oluşturulacak.
File: PortfolioTester.java
package com.tutorialspoint.mock;
import java.util.ArrayList;
import java.util.List;
import static org.mockito.Mockito.*;
public class PortfolioTester {
Portfolio portfolio;
StockService stockService;
public static void main(String[] args){
PortfolioTester tester = new PortfolioTester();
tester.setUp();
System.out.println(tester.testMarketValue()?"pass":"fail");
}
public void setUp(){
//Create a portfolio object which is to be tested
portfolio = new Portfolio();
//Create the mock object of stock service
stockService = mock(StockService.class);
//set the stockService to the portfolio
portfolio.setStockService(stockService);
}
public boolean testMarketValue(){
//Creates a list of stocks to be added to the portfolio
List<Stock> stocks = new ArrayList<Stock>();
Stock googleStock = new Stock("1","Google", 10);
Stock microsoftStock = new Stock("2","Microsoft",100);
stocks.add(googleStock);
stocks.add(microsoftStock);
//add stocks to the portfolio
portfolio.setStocks(stocks);
//mock the behavior of stock service to return the value of various stocks
when(stockService.getPrice(googleStock)).thenReturn(50.00);
when(stockService.getPrice(microsoftStock)).thenReturn(1000.00);
double marketValue = portfolio.getMarketValue();
return marketValue == 100500.0;
}
}
Step 5 − Verify the result
Kullanarak sınıfları derleyin javac aşağıdaki gibi derleyici -
C:\Mockito_WORKSPACE>javac Stock.java StockService.java Portfolio.java PortfolioTester.java
Şimdi sonucu görmek için PortfolioTester'ı çalıştırın -
C:\Mockito_WORKSPACE>java PortfolioTester
Çıkışı Doğrulayın
pass