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  1.  class IcyHot {
  2.  
  3.     //count of test cases
  4.     private int count;
  5.     // test cases which has an error. Either due to bad expected data or wrong or incomplete implemnetation of target function
  6.     private int errs;
  7.  
  8.     public static void main(String[] args) {
  9.  
  10.         IcyHot app = new IcyHot();
  11.         app.icyHotTestCases();
  12.  
  13.     }
  14.  
  15.     /**
  16.      * Target function, this function is the main function to implement. The signature should be same as
  17.      * in your question.
  18.      * Following is simple question, real one will be a little more complex.
  19.      * Remember :
  20.      * copy this template but rename all functions and change parameters per your problem.
  21.      * <p>
  22.      * Question:
  23.      * Given two temperatures, return true if one is less than 0 and the other is greater than 100.
  24.      * <p>
  25.      * icyHot(120, -1) -> true
  26.      * icyHot(-1, 120) -> true
  27.      * icyHot(2, 120) -> false
  28.      * <p>
  29.      */
  30.     public boolean icyHot(int temperature1, int temperature2) {
  31.         return temperature1 < 0;//sample answer, incomplete
  32.     }
  33.  
  34.  
  35.     /**
  36.      * Test helper. This function calls target and checks response - if matches expected.
  37.      * <p>
  38.      * Same parameters as target plus the return type - expected value.
  39.      * expected value has to be accurately calculated by developer.
  40.      * Type and number of parameters can change depending on your question.
  41.      */
  42.     void testIcyHot(int temperature1, int temperature2, boolean expected) {
  43.         boolean actual = false;
  44.         count++;
  45.         try {
  46.             actual = icyHot(temperature1, temperature2);
  47.             if (actual != expected) {
  48.             System.out.println("Actual :" + actual + ", expected :" + expected + ", for temperature1 :" + temperature1 + ", temperature2 :" + temperature2
  49.                     + ", count :" + count + ".");
  50.             errs++;
  51.         }
  52.         } catch (Throwable e) {
  53.             errs++;
  54.             e.printStackTrace();// log it
  55.             System.err.println("Error " + e);
  56.         }
  57.  
  58.  
  59.     }
  60.  
  61.     /**
  62.      * Different test cases - more the better to adequately test the target function for all
  63.      * requirements per the question.
  64.      * Number of test cases depends on question and number & type of parameters in target.
  65.      */
  66.     private void icyHotTestCases() {
  67.         System.out.println("IcyHot test cases run at " + new java.util.Date() );
  68.         testIcyHot(0, 0, false);
  69.         testIcyHot(0, 101, false);
  70.         testIcyHot(-1, 101, true);
  71.         testIcyHot(500, -101, true);
  72.         testIcyHot(0, 101, false);
  73.         testIcyHot(-100, 1999, true);
  74.         System.out.println("Icy Hot test cases count " + count + ", Errors :" + errs + ".");
  75.     }
  76.  
  77. }
Success #stdin #stdout 0.23s 59792KB
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IcyHot test cases run at Wed Aug 21 22:18:53 GMT 2024
Actual :false, expected :true, for temperature1 :500, temperature2 :-101, count :4.
Icy Hot test cases count 6, Errors :1.
https://ideone.com/9fokSG
Icy Hot, Java question with unit test cases using test helper (not Junit)
language:
Java (HotSpot 12)
created:
122 days ago
visibility:
secret

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