我試圖寫一個臨時轉換JUnit測試，但還沒有得到一個工作尚未

Question

這是我的代碼，而我至今嘗試過的測試

 public class TempConvert { 

      private double cel; 
      private double fah; 
      private double kel; 


      public TempConvert(double celsius) { 
     this.cel = celsius; 
     this.fah = (celsius * 1.8) + 32; 
     this.kel = celsius + 273.15; 
     } 

     protected double getCel() { 
      return cel; 
     } 

     public double getfah() { 
      return fah; 
     } 
     public double getkel(){ 
      return kel; 
     } 
     public void setCal(double celsius){ 
      this.cel = celsius; 
      this.fah = (celsius * 1.8) + 32; 
      this.kel = celsius + 273.15; 
     } 
     public void setFah(double fahrenheit){ 
     fah = fahrenheit; 
     cel = (fah * 1.8) + 32; 
     kel = cel + 273; 

     } 
     public void setKel(double kelvin){ 
      kel = kelvin; 
      cel = kel -273; 
      fah = (cel * 1.8) + 32;enter code here 
     } 
     public String toString(){ 
      //DecimalFormat formater = new DecimalFormat("0.##"); 
      return "the temp in c is" + cel + "the tempt in f is " + fah +   `"the temp in kel is " + kel;`enter code here` 
     } 

這是我與那些測試頁我試圖回答

import static org.junit.Assert.*; 

    import org.junit.After; 
    import org.junit.Before; 
    import org.junit.Test; 

    @Test 
    public void testSetCal() { 
     TempConvert cal1 = new TempConvert(10); 
     assertEquals(10,40,283.15,cal1.getCel()); 
    } 

    private void assertEquals(int i, int j, double d, double cel) { 
     // TODO Auto-generated method stub 

    } 

與這個測試我曾嘗試使用斷言真正的方法，但我不知道這是否是使用正確的，或者如果這是正確的格式？

@Test 
    public void testSetFah() { 
     TempConvert fah1 = new TempConvert(40); 
     assertTrue("range acceptable",fah1.getCel() , fah1.getkel()); 
    } 

    private void assertTrue(String string, double cel, double getkel) { 
     // TODO Auto-generated method stub 

    } 

with this test I have tried the assertEquals method but again not working . I have tried several variations of these two methods and have not gotten any succcess. I am now in fear that my original code is changed and will have to go back and review it as have tried several auto fixes 

    @Test 
    public void testSetKel() { 
     TempConvert kel1 = new TempConvert(283.15); 
     assertEquals(283.15,10,40,kel1.setKel1());//the 3 numbers are the respective values in kelvin and faharenight and celesius 
    } 

    @Test 
    public void testToString() {`enter code here` 
     fail("Not yet implemented"); // TODO 
    } 

的任何部分。任何幫助將受到歡迎

Answer 1

爲什麼不只是做一個compareTo方法？

public class TempConvert implements Comparable{ 
     private double cel; 
     private double fah; 
     private double kel; 

     public TempConvert(double c){ 
      //Find cel, fah, and kel. 
     } 

     public int compareTo(Object o){ 
     TempConvert other = (TempConvert)o; 
     return this.cel - other.cel; 
     } 
} 

Answer 2

您的測試類缺少JUnit Assert類的靜態導入。

import static junit.framework.Assert.*; 

我猜你的IDE由於缺少導入而生成空方法（assertTrue和assertEquals）。你應該刪除這些方法，因爲他們沒有做任何事情。