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    213. 

  213.   </a>
    214. 

  214. </div>
    215. 

  215. 

  216.   <div class="wy-grid-for-nav">
    217. 

  217. 

  218.     
    219. 

  219.     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
    220. 

  220.       <div class="wy-side-nav-search">
    221. 

  221.         
    222. 

  222.           <a href="../index.html" class="fa fa-home"> CodeIgniter</a>
    223. 

  223.         
    224. 

  224.         
    225. 

  225. <div role="search">
    226. 

  226.   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
    227. 

  227.     <input type="text" name="q" placeholder="Search docs" />
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  228.     <input type="hidden" name="check_keywords" value="yes" />
    229. 

  229.     <input type="hidden" name="area" value="default" />
    230. 

  230.   </form>
    231. 

  231. </div>
    232. 

  232.       </div>
    233. 

  233. 

  234.       <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
    235. 

  235.         
    236. 

  236.           
    237. 

  237.           
    238. 

  238.               <ul>
    239. 

  239. <li class="toctree-l1"><a class="reference internal" href="../general/welcome.html">Welcome to CodeIgniter</a></li>
    240. 

  240. </ul>
    241. 

  241. <ul>
    242. 

  242. <li class="toctree-l1"><a class="reference internal" href="../installation/index.html">Installation Instructions</a><ul>
    243. 

  243. <li class="toctree-l2"><a class="reference internal" href="../installation/downloads.html">Downloading CodeIgniter</a></li>
    244. 

  244. <li class="toctree-l2"><a class="reference internal" href="../installation/index.html">Installation Instructions</a></li>
    245. 

  245. <li class="toctree-l2"><a class="reference internal" href="../installation/upgrading.html">Upgrading From a Previous Version</a></li>
    246. 

  246. <li class="toctree-l2"><a class="reference internal" href="../installation/troubleshooting.html">Troubleshooting</a></li>
    247. 

  247. </ul>
    248. 

  248. </li>
    249. 

  249. </ul>
    250. 

  250. <ul>
    251. 

  251. <li class="toctree-l1"><a class="reference internal" href="../overview/index.html">CodeIgniter Overview</a><ul>
    252. 

  252. <li class="toctree-l2"><a class="reference internal" href="../overview/getting_started.html">Getting Started</a></li>
    253. 

  253. <li class="toctree-l2"><a class="reference internal" href="../overview/at_a_glance.html">CodeIgniter at a Glance</a></li>
    254. 

  254. <li class="toctree-l2"><a class="reference internal" href="../overview/features.html">Supported Features</a></li>
    255. 

  255. <li class="toctree-l2"><a class="reference internal" href="../overview/appflow.html">Application Flow Chart</a></li>
    256. 

  256. <li class="toctree-l2"><a class="reference internal" href="../overview/mvc.html">Model-View-Controller</a></li>
    257. 

  257. <li class="toctree-l2"><a class="reference internal" href="../overview/goals.html">Architectural Goals</a></li>
    258. 

  258. </ul>
    259. 

  259. </li>
    260. 

  260. </ul>
    261. 

  261. <ul>
    262. 

  262. <li class="toctree-l1"><a class="reference internal" href="../tutorial/index.html">Tutorial</a><ul>
    263. 

  263. <li class="toctree-l2"><a class="reference internal" href="../tutorial/static_pages.html">Static pages</a></li>
    264. 

  264. <li class="toctree-l2"><a class="reference internal" href="../tutorial/news_section.html">News section</a></li>
    265. 

  265. <li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li>
    266. 

  266. <li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
    267. 

  267. </ul>
    268. 

  268. </li>
    269. 

  269. </ul>
    270. 

  270. <ul>
    271. 

  271. <li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul>
    272. 

  272. <li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li>
    273. 

  273. <li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li>
    274. 

  274. </ul>
    275. 

  275. </li>
    276. 

  276. </ul>
    277. 

  277. <ul>
    278. 

  278. <li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
    279. 

  279. <li class="toctree-l2"><a class="reference internal" href="../general/urls.html">CodeIgniter URLs</a></li>
    280. 

  280. <li class="toctree-l2"><a class="reference internal" href="../general/controllers.html">Controllers</a></li>
    281. 

  281. <li class="toctree-l2"><a class="reference internal" href="../general/reserved_names.html">Reserved Names</a></li>
    282. 

  282. <li class="toctree-l2"><a class="reference internal" href="../general/views.html">Views</a></li>
    283. 

  283. <li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
    284. 

  284. <li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
    285. 

  285. <li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
    286. 

  286. <li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
    287. 

  287. <li class="toctree-l2"><a class="reference internal" href="../general/drivers.html">Using CodeIgniter Drivers</a></li>
    288. 

  288. <li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
    289. 

  289. <li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
    290. 

  290. <li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
    291. 

  291. <li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
    292. 

  292. <li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
    293. 

  293. <li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
    294. 

  294. <li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
    295. 

  295. <li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
    296. 

  296. <li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
    297. 

  297. <li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
    298. 

  298. <li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
    299. 

  299. <li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
    300. 

  300. <li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
    301. 

  301. <li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
    302. 

  302. <li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
    303. 

  303. <li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
    304. 

  304. <li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
    305. 

  305. </ul>
    306. 

  306. </li>
    307. 

  307. </ul>
    308. 

  308. <ul class="current">
    309. 

  309. <li class="toctree-l1 current"><a class="reference internal" href="index.html">Libraries</a><ul class="current">
    310. 

  310. <li class="toctree-l2"><a class="reference internal" href="benchmark.html">Benchmarking Class</a></li>
    311. 

  311. <li class="toctree-l2"><a class="reference internal" href="caching.html">Caching Driver</a></li>
    312. 

  312. <li class="toctree-l2"><a class="reference internal" href="calendar.html">Calendaring Class</a></li>
    313. 

  313. <li class="toctree-l2"><a class="reference internal" href="cart.html">Shopping Cart Class</a></li>
    314. 

  314. <li class="toctree-l2"><a class="reference internal" href="config.html">Config Class</a></li>
    315. 

  315. <li class="toctree-l2"><a class="reference internal" href="email.html">Email Class</a></li>
    316. 

  316. <li class="toctree-l2"><a class="reference internal" href="encrypt.html">Encrypt Class</a></li>
    317. 

  317. <li class="toctree-l2"><a class="reference internal" href="encryption.html">Encryption Library</a></li>
    318. 

  318. <li class="toctree-l2"><a class="reference internal" href="file_uploading.html">File Uploading Class</a></li>
    319. 

  319. <li class="toctree-l2"><a class="reference internal" href="form_validation.html">Form Validation</a></li>
    320. 

  320. <li class="toctree-l2"><a class="reference internal" href="ftp.html">FTP Class</a></li>
    321. 

  321. <li class="toctree-l2"><a class="reference internal" href="image_lib.html">Image Manipulation Class</a></li>
    322. 

  322. <li class="toctree-l2"><a class="reference internal" href="input.html">Input Class</a></li>
    323. 

  323. <li class="toctree-l2"><a class="reference internal" href="javascript.html">Javascript Class</a></li>
    324. 

  324. <li class="toctree-l2"><a class="reference internal" href="language.html">Language Class</a></li>
    325. 

  325. <li class="toctree-l2"><a class="reference internal" href="loader.html">Loader Class</a></li>
    326. 

  326. <li class="toctree-l2"><a class="reference internal" href="migration.html">Migrations Class</a></li>
    327. 

  327. <li class="toctree-l2"><a class="reference internal" href="output.html">Output Class</a></li>
    328. 

  328. <li class="toctree-l2"><a class="reference internal" href="pagination.html">Pagination Class</a></li>
    329. 

  329. <li class="toctree-l2"><a class="reference internal" href="parser.html">Template Parser Class</a></li>
    330. 

  330. <li class="toctree-l2"><a class="reference internal" href="security.html">Security Class</a></li>
    331. 

  331. <li class="toctree-l2"><a class="reference internal" href="sessions.html">Session Library</a></li>
    332. 

  332. <li class="toctree-l2"><a class="reference internal" href="table.html">HTML Table Class</a></li>
    333. 

  333. <li class="toctree-l2"><a class="reference internal" href="trackback.html">Trackback Class</a></li>
    334. 

  334. <li class="toctree-l2"><a class="reference internal" href="typography.html">Typography Class</a></li>
    335. 

  335. <li class="toctree-l2 current"><a class="current reference internal" href="#">Unit Testing Class</a></li>
    336. 

  336. <li class="toctree-l2"><a class="reference internal" href="uri.html">URI Class</a></li>
    337. 

  337. <li class="toctree-l2"><a class="reference internal" href="user_agent.html">User Agent Class</a></li>
    338. 

  338. <li class="toctree-l2"><a class="reference internal" href="xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
    339. 

  339. <li class="toctree-l2"><a class="reference internal" href="zip.html">Zip Encoding Class</a></li>
    340. 

  340. </ul>
    341. 

  341. </li>
    342. 

  342. </ul>
    343. 

  343. <ul>
    344. 

  344. <li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
    345. 

  345. <li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
    346. 

  346. <li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
    347. 

  347. <li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
    348. 

  348. <li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
    349. 

  349. <li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
    350. 

  350. <li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
    351. 

  351. <li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
    352. 

  352. <li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
    353. 

  353. <li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
    354. 

  354. <li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
    355. 

  355. <li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
    356. 

  356. <li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
    357. 

  357. <li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
    358. 

  358. <li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
    359. 

  359. </ul>
    360. 

  360. </li>
    361. 

  361. </ul>
    362. 

  362. <ul>
    363. 

  363. <li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
    364. 

  364. <li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
    365. 

  365. <li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
    366. 

  366. <li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
    367. 

  367. <li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
    368. 

  368. <li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
    369. 

  369. <li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
    370. 

  370. <li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
    371. 

  371. <li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
    372. 

  372. <li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
    373. 

  373. <li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
    374. 

  374. <li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
    375. 

  375. <li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
    376. 

  376. <li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
    377. 

  377. <li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
    378. 

  378. <li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
    379. 

  379. <li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
    380. 

  380. <li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
    381. 

  381. <li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
    382. 

  382. <li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
    383. 

  383. <li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
    384. 

  384. <li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
    385. 

  385. </ul>
    386. 

  386. </li>
    387. 

  387. </ul>
    388. 

  388. 

  389.           
    390. 

  390.         
    391. 

  391.       </div>
    392. 

  392.       &nbsp;
    393. 

  393.     </nav>
    394. 

  394. 

  395.     <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
    396. 

  396. 

  397.       
    398. 

  398.       <nav class="wy-nav-top" role="navigation" aria-label="top navigation">
    399. 

  399.         <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
    400. 

  400.         <a href="../index.html">CodeIgniter</a>
    401. 

  401.       </nav>
    402. 

  402. 

  403. 

  404.       
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  411.         <li><a href="index.html">Libraries</a> &raquo;</li>
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  413.     <li>Unit Testing Class</li>
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  418.       <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" />
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  423.           <div role="main" class="document">
    424. 

  424.             
    425. 

  425.   <div class="section" id="unit-testing-class">
    426. 

  426. <h1>Unit Testing Class<a class="headerlink" href="#unit-testing-class" title="Permalink to this headline">¶</a></h1>
    427. 

  427. <p>Unit testing is an approach to software development in which tests are
    428. 

  428. written for each function in your application. If you are not familiar
    429. 

  429. with the concept you might do a little googling on the subject.</p>
    430. 

  430. <p>CodeIgniter’s Unit Test class is quite simple, consisting of an
    431. 

  431. evaluation function and two result functions. It’s not intended to be a
    432. 

  432. full-blown test suite but rather a simple mechanism to evaluate your
    433. 

  433. code to determine if it is producing the correct data type and result.</p>
    434. 

  434. <div class="contents local topic" id="contents">
    435. 

  435. <ul class="simple">
    436. 

  436. <li><a class="reference internal" href="#using-the-unit-testing-library" id="id1">Using the Unit Testing Library</a><ul>
    437. 

  437. <li><a class="reference internal" href="#initializing-the-class" id="id2">Initializing the Class</a></li>
    438. 

  438. <li><a class="reference internal" href="#running-tests" id="id3">Running Tests</a></li>
    439. 

  439. <li><a class="reference internal" href="#generating-reports" id="id4">Generating Reports</a></li>
    440. 

  440. <li><a class="reference internal" href="#strict-mode" id="id5">Strict Mode</a></li>
    441. 

  441. <li><a class="reference internal" href="#enabling-disabling-unit-testing" id="id6">Enabling/Disabling Unit Testing</a></li>
    442. 

  442. <li><a class="reference internal" href="#unit-test-display" id="id7">Unit Test Display</a><ul>
    443. 

  443. <li><a class="reference internal" href="#customizing-displayed-tests" id="id8">Customizing displayed tests</a></li>
    444. 

  444. <li><a class="reference internal" href="#creating-a-template" id="id9">Creating a Template</a></li>
    445. 

  445. </ul>
    446. 

  446. </li>
    447. 

  447. </ul>
    448. 

  448. </li>
    449. 

  449. <li><a class="reference internal" href="#class-reference" id="id10">Class Reference</a></li>
    450. 

  450. </ul>
    451. 

  451. </div>
    452. 

  452. <div class="custom-index container"></div><div class="section" id="using-the-unit-testing-library">
    453. 

  453. <h2><a class="toc-backref" href="#id1">Using the Unit Testing Library</a><a class="headerlink" href="#using-the-unit-testing-library" title="Permalink to this headline">¶</a></h2>
    454. 

  454. <div class="section" id="initializing-the-class">
    455. 

  455. <h3><a class="toc-backref" href="#id2">Initializing the Class</a><a class="headerlink" href="#initializing-the-class" title="Permalink to this headline">¶</a></h3>
    456. 

  456. <p>Like most other classes in CodeIgniter, the Unit Test class is
    457. 

  457. initialized in your controller using the $this-&gt;load-&gt;library function:</p>
    458. 

  458. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;unit_test&#39;</span><span class="p">);</span>
    459. 

  459. </pre></div>
    460. 

  460. </div>
    461. 

  461. <p>Once loaded, the Unit Test object will be available using <code class="docutils literal"><span class="pre">$this-&gt;unit</span></code></p>
    462. 

  462. </div>
    463. 

  463. <div class="section" id="running-tests">
    464. 

  464. <h3><a class="toc-backref" href="#id3">Running Tests</a><a class="headerlink" href="#running-tests" title="Permalink to this headline">¶</a></h3>
    465. 

  465. <p>Running a test involves supplying a test and an expected result in the
    466. 

  466. following way:</p>
    467. 

  467. <blockquote>
    468. 

  468. <div>$this-&gt;unit-&gt;run(‘test’, ‘expected result’, ‘test name’, ‘notes’);</div></blockquote>
    469. 

  469. <p>Where test is the result of the code you wish to test, expected result
    470. 

  470. is the data type you expect, test name is an optional name you can give
    471. 

  471. your test, and notes are optional notes. Example:</p>
    472. 

  472. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$test</span> <span class="o">=</span> <span class="mi">1</span> <span class="o">+</span> <span class="mi">1</span><span class="p">;</span>
    473. 

  473. 

  474. <span class="nv">$expected_result</span> <span class="o">=</span> <span class="mi">2</span><span class="p">;</span>
    475. 

  475. 

  476. <span class="nv">$test_name</span> <span class="o">=</span> <span class="s1">&#39;Adds one plus one&#39;</span><span class="p">;</span>
    477. 

  477. 

  478. <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">unit</span><span class="o">-&gt;</span><span class="na">run</span><span class="p">(</span><span class="nv">$test</span><span class="p">,</span> <span class="nv">$expected_result</span><span class="p">,</span> <span class="nv">$test_name</span><span class="p">);</span>
    479. 

  479. </pre></div>
    480. 

  480. </div>
    481. 

  481. <p>The expected result you supply can either be a literal match, or a data
    482. 

  482. type match. Here’s an example of a literal:</p>
    483. 

  483. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">unit</span><span class="o">-&gt;</span><span class="na">run</span><span class="p">(</span><span class="s1">&#39;Foo&#39;</span><span class="p">,</span> <span class="s1">&#39;Foo&#39;</span><span class="p">);</span>
    484. 

  484. </pre></div>
    485. 

  485. </div>
    486. 

  486. <p>Here is an example of a data type match:</p>
    487. 

  487. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">unit</span><span class="o">-&gt;</span><span class="na">run</span><span class="p">(</span><span class="s1">&#39;Foo&#39;</span><span class="p">,</span> <span class="s1">&#39;is_string&#39;</span><span class="p">);</span>
    488. 

  488. </pre></div>
    489. 

  489. </div>
    490. 

  490. <p>Notice the use of “is_string” in the second parameter? This tells the
    491. 

  491. function to evaluate whether your test is producing a string as the
    492. 

  492. result. Here is a list of allowed comparison types:</p>
    493. 

  493. <ul class="simple">
    494. 

  494. <li>is_object</li>
    495. 

  495. <li>is_string</li>
    496. 

  496. <li>is_bool</li>
    497. 

  497. <li>is_true</li>
    498. 

  498. <li>is_false</li>
    499. 

  499. <li>is_int</li>
    500. 

  500. <li>is_numeric</li>
    501. 

  501. <li>is_float</li>
    502. 

  502. <li>is_double</li>
    503. 

  503. <li>is_array</li>
    504. 

  504. <li>is_null</li>
    505. 

  505. <li>is_resource</li>
    506. 

  506. </ul>
    507. 

  507. </div>
    508. 

  508. <div class="section" id="generating-reports">
    509. 

  509. <h3><a class="toc-backref" href="#id4">Generating Reports</a><a class="headerlink" href="#generating-reports" title="Permalink to this headline">¶</a></h3>
    510. 

  510. <p>You can either display results after each test, or your can run several
    511. 

  511. tests and generate a report at the end. To show a report directly simply
    512. 

  512. echo or return the run function:</p>
    513. 

  513. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">unit</span><span class="o">-&gt;</span><span class="na">run</span><span class="p">(</span><span class="nv">$test</span><span class="p">,</span> <span class="nv">$expected_result</span><span class="p">);</span>
    514. 

  514. </pre></div>
    515. 

  515. </div>
    516. 

  516. <p>To run a full report of all tests, use this:</p>
    517. 

  517. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">unit</span><span class="o">-&gt;</span><span class="na">report</span><span class="p">();</span>
    518. 

  518. </pre></div>
    519. 

  519. </div>
    520. 

  520. <p>The report will be formatted in an HTML table for viewing. If you prefer
    521. 

  521. the raw data you can retrieve an array using:</p>
    522. 

  522. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">unit</span><span class="o">-&gt;</span><span class="na">result</span><span class="p">();</span>
    523. 

  523. </pre></div>
    524. 

  524. </div>
    525. 

  525. </div>
    526. 

  526. <div class="section" id="strict-mode">
    527. 

  527. <h3><a class="toc-backref" href="#id5">Strict Mode</a><a class="headerlink" href="#strict-mode" title="Permalink to this headline">¶</a></h3>
    528. 

  528. <p>By default the unit test class evaluates literal matches loosely.
    529. 

  529. Consider this example:</p>
    530. 

  530. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">unit</span><span class="o">-&gt;</span><span class="na">run</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span>
    531. 

  531. </pre></div>
    532. 

  532. </div>
    533. 

  533. <p>The test is evaluating an integer, but the expected result is a boolean.
    534. 

  534. PHP, however, due to it’s loose data-typing will evaluate the above code
    535. 

  535. as TRUE using a normal equality test:</p>
    536. 

  536. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="mi">1</span> <span class="o">==</span> <span class="k">TRUE</span><span class="p">)</span> <span class="k">echo</span> <span class="s1">&#39;This evaluates as true&#39;</span><span class="p">;</span>
    537. 

  537. </pre></div>
    538. 

  538. </div>
    539. 

  539. <p>If you prefer, you can put the unit test class in to strict mode, which
    540. 

  540. will compare the data type as well as the value:</p>
    541. 

  541. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="mi">1</span> <span class="o">===</span> <span class="k">TRUE</span><span class="p">)</span> <span class="k">echo</span> <span class="s1">&#39;This evaluates as FALSE&#39;</span><span class="p">;</span>
    542. 

  542. </pre></div>
    543. 

  543. </div>
    544. 

  544. <p>To enable strict mode use this:</p>
    545. 

  545. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">unit</span><span class="o">-&gt;</span><span class="na">use_strict</span><span class="p">(</span><span class="k">TRUE</span><span class="p">);</span>
    546. 

  546. </pre></div>
    547. 

  547. </div>
    548. 

  548. </div>
    549. 

  549. <div class="section" id="enabling-disabling-unit-testing">
    550. 

  550. <h3><a class="toc-backref" href="#id6">Enabling/Disabling Unit Testing</a><a class="headerlink" href="#enabling-disabling-unit-testing" title="Permalink to this headline">¶</a></h3>
    551. 

  551. <p>If you would like to leave some testing in place in your scripts, but
    552. 

  552. not have it run unless you need it, you can disable unit testing using:</p>
    553. 

  553. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">unit</span><span class="o">-&gt;</span><span class="na">active</span><span class="p">(</span><span class="k">FALSE</span><span class="p">);</span>
    554. 

  554. </pre></div>
    555. 

  555. </div>
    556. 

  556. </div>
    557. 

  557. <div class="section" id="unit-test-display">
    558. 

  558. <h3><a class="toc-backref" href="#id7">Unit Test Display</a><a class="headerlink" href="#unit-test-display" title="Permalink to this headline">¶</a></h3>
    559. 

  559. <p>When your unit test results display, the following items show by
    560. 

  560. default:</p>
    561. 

  561. <ul class="simple">
    562. 

  562. <li>Test Name (test_name)</li>
    563. 

  563. <li>Test Datatype (test_datatype)</li>
    564. 

  564. <li>Expected Datatype (res_datatype)</li>
    565. 

  565. <li>Result (result)</li>
    566. 

  566. <li>File Name (file)</li>
    567. 

  567. <li>Line Number (line)</li>
    568. 

  568. <li>Any notes you entered for the test (notes)</li>
    569. 

  569. </ul>
    570. 

  570. <p>You can customize which of these items get displayed by using
    571. 

  571. $this-&gt;unit-&gt;set_test_items(). For example, if you only wanted the test name
    572. 

  572. and the result displayed:</p>
    573. 

  573. <div class="section" id="customizing-displayed-tests">
    574. 

  574. <h4><a class="toc-backref" href="#id8">Customizing displayed tests</a><a class="headerlink" href="#customizing-displayed-tests" title="Permalink to this headline">¶</a></h4>
    575. 

  575. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">unit</span><span class="o">-&gt;</span><span class="na">set_test_items</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">&#39;test_name&#39;</span><span class="p">,</span> <span class="s1">&#39;result&#39;</span><span class="p">));</span>
    576. 

  576. </pre></div>
    577. 

  577. </div>
    578. 

  578. </div>
    579. 

  579. <div class="section" id="creating-a-template">
    580. 

  580. <h4><a class="toc-backref" href="#id9">Creating a Template</a><a class="headerlink" href="#creating-a-template" title="Permalink to this headline">¶</a></h4>
    581. 

  581. <p>If you would like your test results formatted differently then the
    582. 

  582. default you can set your own template. Here is an example of a simple
    583. 

  583. template. Note the required pseudo-variables:</p>
    584. 

  584. <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$str</span> <span class="o">=</span> <span class="s1">&#39;</span>
    585. 

  585. <span class="s1">&lt;table border=&quot;0&quot; cellpadding=&quot;4&quot; cellspacing=&quot;1&quot;&gt;</span>
    586. 

  586. <span class="s1">{rows}</span>
    587. 

  587. <span class="s1">        &lt;tr&gt;</span>
    588. 

  588. <span class="s1">                &lt;td&gt;{item}&lt;/td&gt;</span>
    589. 

  589. <span class="s1">                &lt;td&gt;{result}&lt;/td&gt;</span>
    590. 

  590. <span class="s1">        &lt;/tr&gt;</span>
    591. 

  591. <span class="s1">{/rows}</span>
    592. 

  592. <span class="s1">&lt;/table&gt;&#39;</span><span class="p">;</span>
    593. 

  593. 

  594. <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">unit</span><span class="o">-&gt;</span><span class="na">set_template</span><span class="p">(</span><span class="nv">$str</span><span class="p">);</span>
    595. 

  595. </pre></div>
    596. 

  596. </div>
    597. 

  597. <div class="admonition note">
    598. 

  598. <p class="first admonition-title">Note</p>
    599. 

  599. <p class="last">Your template must be declared <strong>before</strong> running the unit
    600. 

  600. test process.</p>
    601. 

  601. </div>
    602. 

  602. </div>
    603. 

  603. </div>
    604. 

  604. </div>
    605. 

  605. <div class="section" id="class-reference">
    606. 

  606. <h2><a class="toc-backref" href="#id10">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2>
    607. 

  607. <dl class="class">
    608. 

  608. <dt id="CI_Unit_test">
    609. 

  609. <em class="property">class </em><code class="descname">CI_Unit_test</code><a class="headerlink" href="#CI_Unit_test" title="Permalink to this definition">¶</a></dt>
    610. 

  610. <dd><dl class="method">
    611. 

  611. <dt id="CI_Unit_test::set_test_items">
    612. 

  612. <code class="descname">set_test_items</code><span class="sig-paren">(</span><em>$items</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Unit_test::set_test_items" title="Permalink to this definition">¶</a></dt>
    613. 

  613. <dd><table class="docutils field-list" frame="void" rules="none">
    614. 

  614. <col class="field-name" />
    615. 

  615. <col class="field-body" />
    616. 

  616. <tbody valign="top">
    617. 

  617. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    618. 

  618. <li><strong>$items</strong> (<em>array</em>) – List of visible test items</li>
    619. 

  619. </ul>
    620. 

  620. </td>
    621. 

  621. </tr>
    622. 

  622. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">void</p>
    623. 

  623. </td>
    624. 

  624. </tr>
    625. 

  625. </tbody>
    626. 

  626. </table>
    627. 

  627. <p>Sets a list of items that should be visible in tests.
    628. 

  628. Valid options are:</p>
    629. 

  629. <blockquote>
    630. 

  630. <div><ul class="simple">
    631. 

  631. <li>test_name</li>
    632. 

  632. <li>test_datatype</li>
    633. 

  633. <li>res_datatype</li>
    634. 

  634. <li>result</li>
    635. 

  635. <li>file</li>
    636. 

  636. <li>line</li>
    637. 

  637. <li>notes</li>
    638. 

  638. </ul>
    639. 

  639. </div></blockquote>
    640. 

  640. </dd></dl>
    641. 

  641. 

  642. <dl class="method">
    643. 

  643. <dt id="CI_Unit_test::run">
    644. 

  644. <code class="descname">run</code><span class="sig-paren">(</span><em>$test</em><span class="optional">[</span>, <em>$expected = TRUE</em><span class="optional">[</span>, <em>$test_name = 'undefined'</em><span class="optional">[</span>, <em>$notes = ''</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Unit_test::run" title="Permalink to this definition">¶</a></dt>
    645. 

  645. <dd><table class="docutils field-list" frame="void" rules="none">
    646. 

  646. <col class="field-name" />
    647. 

  647. <col class="field-body" />
    648. 

  648. <tbody valign="top">
    649. 

  649. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    650. 

  650. <li><strong>$test</strong> (<em>mixed</em>) – Test data</li>
    651. 

  651. <li><strong>$expected</strong> (<em>mixed</em>) – Expected result</li>
    652. 

  652. <li><strong>$test_name</strong> (<em>string</em>) – Test name</li>
    653. 

  653. <li><strong>$notes</strong> (<em>string</em>) – Any notes to be attached to the test</li>
    654. 

  654. </ul>
    655. 

  655. </td>
    656. 

  656. </tr>
    657. 

  657. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Test report</p>
    658. 

  658. </td>
    659. 

  659. </tr>
    660. 

  660. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    661. 

  661. </td>
    662. 

  662. </tr>
    663. 

  663. </tbody>
    664. 

  664. </table>
    665. 

  665. <p>Runs unit tests.</p>
    666. 

  666. </dd></dl>
    667. 

  667. 

  668. <dl class="method">
    669. 

  669. <dt id="CI_Unit_test::report">
    670. 

  670. <code class="descname">report</code><span class="sig-paren">(</span><span class="optional">[</span><em>$result = array()</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Unit_test::report" title="Permalink to this definition">¶</a></dt>
    671. 

  671. <dd><table class="docutils field-list" frame="void" rules="none">
    672. 

  672. <col class="field-name" />
    673. 

  673. <col class="field-body" />
    674. 

  674. <tbody valign="top">
    675. 

  675. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    676. 

  676. <li><strong>$result</strong> (<em>array</em>) – Array containing tests results</li>
    677. 

  677. </ul>
    678. 

  678. </td>
    679. 

  679. </tr>
    680. 

  680. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Test report</p>
    681. 

  681. </td>
    682. 

  682. </tr>
    683. 

  683. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
    684. 

  684. </td>
    685. 

  685. </tr>
    686. 

  686. </tbody>
    687. 

  687. </table>
    688. 

  688. <p>Generates a report about already complete tests.</p>
    689. 

  689. </dd></dl>
    690. 

  690. 

  691. <dl class="method">
    692. 

  692. <dt id="CI_Unit_test::use_strict">
    693. 

  693. <code class="descname">use_strict</code><span class="sig-paren">(</span><span class="optional">[</span><em>$state = TRUE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Unit_test::use_strict" title="Permalink to this definition">¶</a></dt>
    694. 

  694. <dd><table class="docutils field-list" frame="void" rules="none">
    695. 

  695. <col class="field-name" />
    696. 

  696. <col class="field-body" />
    697. 

  697. <tbody valign="top">
    698. 

  698. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    699. 

  699. <li><strong>$state</strong> (<em>bool</em>) – Strict state flag</li>
    700. 

  700. </ul>
    701. 

  701. </td>
    702. 

  702. </tr>
    703. 

  703. <tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p>
    704. 

  704. </td>
    705. 

  705. </tr>
    706. 

  706. </tbody>
    707. 

  707. </table>
    708. 

  708. <p>Enables/disables strict type comparison in tests.</p>
    709. 

  709. </dd></dl>
    710. 

  710. 

  711. <dl class="method">
    712. 

  712. <dt id="CI_Unit_test::active">
    713. 

  713. <code class="descname">active</code><span class="sig-paren">(</span><span class="optional">[</span><em>$state = TRUE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Unit_test::active" title="Permalink to this definition">¶</a></dt>
    714. 

  714. <dd><table class="docutils field-list" frame="void" rules="none">
    715. 

  715. <col class="field-name" />
    716. 

  716. <col class="field-body" />
    717. 

  717. <tbody valign="top">
    718. 

  718. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    719. 

  719. <li><strong>$state</strong> (<em>bool</em>) – Whether to enable testing</li>
    720. 

  720. </ul>
    721. 

  721. </td>
    722. 

  722. </tr>
    723. 

  723. <tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p>
    724. 

  724. </td>
    725. 

  725. </tr>
    726. 

  726. </tbody>
    727. 

  727. </table>
    728. 

  728. <p>Enables/disables unit testing.</p>
    729. 

  729. </dd></dl>
    730. 

  730. 

  731. <dl class="method">
    732. 

  732. <dt id="CI_Unit_test::result">
    733. 

  733. <code class="descname">result</code><span class="sig-paren">(</span><span class="optional">[</span><em>$results = array()</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Unit_test::result" title="Permalink to this definition">¶</a></dt>
    734. 

  734. <dd><table class="docutils field-list" frame="void" rules="none">
    735. 

  735. <col class="field-name" />
    736. 

  736. <col class="field-body" />
    737. 

  737. <tbody valign="top">
    738. 

  738. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    739. 

  739. <li><strong>$results</strong> (<em>array</em>) – Tests results list</li>
    740. 

  740. </ul>
    741. 

  741. </td>
    742. 

  742. </tr>
    743. 

  743. <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Array of raw result data</p>
    744. 

  744. </td>
    745. 

  745. </tr>
    746. 

  746. <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p>
    747. 

  747. </td>
    748. 

  748. </tr>
    749. 

  749. </tbody>
    750. 

  750. </table>
    751. 

  751. <p>Returns raw tests results data.</p>
    752. 

  752. </dd></dl>
    753. 

  753. 

  754. <dl class="method">
    755. 

  755. <dt id="CI_Unit_test::set_template">
    756. 

  756. <code class="descname">set_template</code><span class="sig-paren">(</span><em>$template</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Unit_test::set_template" title="Permalink to this definition">¶</a></dt>
    757. 

  757. <dd><table class="docutils field-list" frame="void" rules="none">
    758. 

  758. <col class="field-name" />
    759. 

  759. <col class="field-body" />
    760. 

  760. <tbody valign="top">
    761. 

  761. <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
    762. 

  762. <li><strong>$template</strong> (<em>string</em>) – Test result template</li>
    763. 

  763. </ul>
    764. 

  764. </td>
    765. 

  765. </tr>
    766. 

  766. <tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p>
    767. 

  767. </td>
    768. 

  768. </tr>
    769. 

  769. </tbody>
    770. 

  770. </table>
    771. 

  771. <p>Sets the template for displaying tests results.</p>
    772. 

  772. </dd></dl>
    773. 

  773. 

  774. </dd></dl>
    775. 

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    777. 

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