Empty Test
^^^^^
**Definition:**

* Occurs when a test method has no executable statements. Such methods are possibly created for debugging purposes without being deleted or contain commented-out test statements. An empty test method can be considered problematic and more dangerous than not having a test case at all since JUnit will indicate that the test passes even if there are no executable statements present in the method body. As such, developers introducing behavior-breaking changes into production class, will not be notified of the alternated outcomes as JUnit will report the test as passing.


**Code Example:**

.. code-block:: java

    public void testCredGetFullSampleV1() throws Throwable{
    //        ScrapedCredentials credentials =  innerCredTest(FULL_SAMPLE_v1);
    //        assertEquals("p4ssw0rd", credentials.pass);
    //        assertEquals("user@example.com",credentials.user);
    }
                
**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

* `A survey on test practitioners' awareness of test smells <https://arxiv.org/abs/2003.05613>`_
* `An Exploratory Study on the Refactoring of Unit Test Files in Android Applications <https://dl.acm.org/doi/10.1145/3387940.3392189>`_ :octicon:`comment-discussion;1em` :octicon:`sync;1em`
* `Automatic Identification of High-Impact Bug Report by Product and Test Code Quality <https://huang.zj.cn/pdf/J13.pdf>`_
* `Automatic generation of smell-free unit tests <https://repositorio.ul.pt/handle/10451/56819>`_ :octicon:`comment-discussion;1em`
* `Developers perception on the severity of test smells: an empirical study <https://arxiv.org/abs/2107.13902>`_ :octicon:`graph;1em` :octicon:`sync;1em`
* `Handling Test Smells in Python: Results from a Mixed-Method Study <https://dl.acm.org/doi/10.1145/3474624.3477066>`_
* `How are test smells treated in the wild? A tale of two empirical studies <https://sol.sbc.org.br/journals/index.php/jserd/article/download/1802/1807/7485>`_ :octicon:`graph;1em`
* `Investigating Severity Thresholds for Test Smells <https://dl.acm.org/doi/abs/10.1145/3379597.3387453>`_ :octicon:`comment-discussion;1em`
* `Investigating Test Smells in JavaScript Test Code <https://dl.acm.org/doi/10.1145/3482909.3482915>`_ :octicon:`graph;1em`
* `Machine Learning-Based Test Smell Detection <https://arxiv.org/abs/2208.07574>`_
* `On the Distribution of "Simple Stupid Bugs" in Unit Test Files: An Exploratory Study <https://ieeexplore.ieee.org/document/9463091>`_
* `On the diffusion of test smells and their relationship with test code quality of Java projects <https://onlinelibrary.wiley.com/doi/abs/10.1002/smr.2532>`_ :octicon:`graph;1em`
* `On the distribution of test smells in open source Android applications: an exploratory study <https://dl.acm.org/doi/10.5555/3370272.3370293>`_ :octicon:`file-code;1em` :octicon:`graph;1em`
* `On the influence of Test Smells on Test Coverage <https://dl.acm.org/doi/10.1145/3350768.3350775>`_
* `On the test smells detection: an empirical study on the jnose test accuracy <https://sol.sbc.org.br/journals/index.php/jserd/article/view/1893>`_ :octicon:`graph;1em`
* `On the use of test smells for prediction of flaky tests <https://dl.acm.org/doi/abs/10.1145/3482909.3482916>`_ :octicon:`comment-discussion;1em` :octicon:`graph;1em`
* `PyNose: A Test Smell Detector For Python <https://ieeexplore.ieee.org/document/9678615/>`_ :octicon:`comment-discussion;1em` :octicon:`graph;1em`
* `Software Unit Test Smells <https://testsmells.org/>`_ :octicon:`file-code;1em`
* `Test Smell Detection Tools: A Systematic Mapping Study <https://dl.acm.org/doi/10.1145/3463274.3463335>`_
* `TestQ: Exploring Structural and Maintenance Characteristics of Unit Test Suites <https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.649.6409&rep=rep1&type=pdf>`_
* `The secret life of test smells-an empirical study on test smell evolution and maintenance <https://link.springer.com/article/10.1007/s10664-021-09969-1>`_ :octicon:`graph;1em`
* `Understanding Testability and Test Smells <https://www.designite-tools.com/blog/understanding-testability-test-smells>`_
* `What the Smell? An Empirical Investigation on the Distribution and Severity of Test Smells in Open Source Android Applications <https://www.proquest.com/openview/17433ac63caf619abb410e441e6557f0/1?pq-origsite=gscholar&cbl=18750>`_ :octicon:`file-code;1em` :octicon:`graph;1em`
* `tsDetect: an open source test smells detection tool <https://dl.acm.org/doi/10.1145/3368089.3417921>`_