Ground Zero
^^^^^
**Definition:**

* Where the lack of testing with 0 is the source of a lot of bugs.


**Code Example:**

.. code-block:: javascript
  
  // ensuring that there’s a value for and then testing that it’s off screen
  // but if element.top is equals to 0, results goes wrong
  if (element.top && (element.top < viewport.top)) {
   hidePane();
  }

**References:**

.. admonition:: Quality attributes

    * :octicon:`file-code;1em` -  Code Example
    * :octicon:`comment-discussion;1em` -  Cause and Effect
    * :octicon:`graph;1em` -  Frequency
    * :octicon:`sync;1em` -  Refactoring

* `Test Smells - The Coding Craftsman <https://codingcraftsman.wordpress.com/2018/09/27/test-smells/>`_ :octicon:`file-code;1em`