Counting On Spies
^^^^^
**Definition:**

* occurs when injecting a proxy ob- ject (spy) in place of a dependency (or collaborator), and spying on how the consuming class calls it.


**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

* `Smells in software test code: A survey of knowledge in industry and academia <https://www.sciencedirect.com/science/article/abs/pii/S0164121217303060>`_