Java

Java Test

General

• _test (Add new Java test with Assertj)

  public class Cat {
  
          @Test
          @DisplayName("TODO: Rename this")
          public void todo_rename_this() {
                    
              fail("Not yet implemented");
          }
  }

JUnit 5

• _test_exception (Add new Java exception test with JUnit5)

  public class Cat {
  
       @Test
       @DisplayName("TODO: Rename this")
       public void todo_rename_this() {
           assertThrows(NumberFormatException.class, () -> {
               fail("Not yet implemented");
           });
       }
  }

• _test_value_object (Add a battery of default test for value objects with JUnit5 and Assertj)

  public class Cat {                         
  
         @Test
         @DisplayName("Generate a cat")
         void generate_a_cat() {
     
             fail("Not yet implemented");
         }
     
         @Disabled
         @Test
         @DisplayName("Not allow empty values")
         void not_allow_empty_values() {
     
             assertThrows(RuntimeException.class, () -> {
                 // TODO add method
             });
         }
     
         @Disabled
         @Test
         @DisplayName("Not allow null values")
         void not_allow_null_values() {
     
             assertThrows(RuntimeException.class, () -> {
                 // TODO add method
             });
         }
  }

• _test_enum (Add a battery of default test for enum with JUnit5 and Assertj)

  public class Cat {
  
    private final String VALUE_1 = "VALUE_1";
    private final String VALUE_2 = "VALUE_2";
    private final String INVALID_CAT  = "INVALID_CAT";
    
        @Test
        void only_be_created_with_a_valid_cat() {
            Assertions.assertNotNull(Cat.from(VALUE_1));
            Assertions.assertNotNull(Cat.from(VALUE_2));
        }
        
        @Disabled
        @Test
        void fail_when_cat_is_invalid() {
            assertThrows(InvalidCat.class, () -> Cat.from(INVALID_CAT));
        }
  }

• _test_nested (Group your test)

  public class Cat {      
  
     @Nested
     @DisplayName("TODO: Rename this")
     class todoRenameThis {
     
             @Test
             @DisplayName("")
             public void subtest() {
                 //GIVEN
     
                 //WHEN
     
                 //THEN
                 assertThat().isEqualTo();
             }
         }
  }

Example when you run the test using annotation @Nested