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student:junit:v5 [2018/08/14 10:55] – bernstdhstudent:junit:v5 [2020/02/23 10:50] – Fixed the description of assertThrows() bernstdh
Line 155: Line 155:
    */    */
   @Test   @Test
-  public void constructor_IllegalArguments()  +  public void constructor_IllegalArguments()
-          throws IllegalArgumentException+
   {   {
     assertThrows(IllegalArgumentException.class, () -> {new Atom("O", -8, -16);});     assertThrows(IllegalArgumentException.class, () -> {new Atom("O", -8, -16);});
Line 163: Line 162:
  
 This approach uses a //Lambda expression//, a representation of a class with a single-method.  This approach uses a //Lambda expression//, a representation of a class with a single-method. 
-(Note that ''%%IllegalArgumentException%%'' is an unchecked   exception. Hence, this code will compile even if the test method does   not specify that it re-throws the exception. If you are testing for   a checked exception then the test method must specify that it re-throws   the exception.) 
  
  
Line 180: Line 178:
  
       // Shouldn’t get here       // Shouldn’t get here
-      fail("Constrcutor should have thrown an IllegalArgumentException");+      fail("Constructor should have thrown an IllegalArgumentException");
     }     }
     catch (IllegalArgumentException iae)     catch (IllegalArgumentException iae)
Line 387: Line 385:
  
  
-==== Integrating JUnit into a IDE ====+==== Integrating JUnit into an IDE ====