<script>!function(){functiont(t){document.documentElement.setAttribute("data-theme",t)}vare=function(){try{returnnewURLSearchParams(window.location.search).get("docusaurus-theme")}catch(t){}}()||function(){try{returnlocalStorage.getItem("theme")}catch(t){}}();t(null!==e?e:"light")}(),function(){try{constc=newURLSearchParams(window.location.search).entries();for(var[t,e]ofc)if(t.startsWith("docusaurus-data-")){vara=t.replace("docusaurus-data-","data-");document.documentElement.setAttribute(a,e)}}catch(t){}}()</script><divid="__docusaurus"><divrole="region"aria-label="Skip to main content"><aclass="skipToContent_fXgn"href="#__docusaurus_skipToContent_fallback">Skip to main content</a></div><navaria-label="Main"class="navbar navbar--fixed-top"><divclass="navbar__inner"><divclass="navbar__items"><buttonaria-label="Toggle navigation bar"aria-expanded="false"class="navbar__toggle clean-btn"type="button"><svgwidth="30"height="30"viewBox="0 0 30 30"aria-hidden="true"><pathstroke="currentColor"stroke-linecap="round"stroke-miterlimit="10"stroke-width="2"d="M4 7h22M4 15h22M4 23h22"></path></svg></button><aclass="navbar__brand"href="/"><bclass="navbar__title text--truncate">mf</b></a><divclass="navbar__item dropdown dropdown--hoverable"><ahref="#"aria-haspopup="true"aria-expanded="false"role="button"class="navbar__link">Additional FI MU materials</a><ulclass="dropdown__menu"><li><aclass="dropdown__link"href="/algorithms/">Algorithms</a></li><li><aaria-current="page"class="dropdown__link dropdown__link--active"href="/c/">C</a></li><li><aclass="dropdown__link"href="/cpp/">C++</a></li></ul></div><aclass="navbar__item navbar__link"href="/contributions/">Contributions</a><aclass="navbar__item navbar__link"href="/talks/">Talks</a></div><divclass="navbar__items navbar__items--right"><aclass="navbar__item navbar__link"href="/blog/">Blog</a><divclass="toggle_vylO colorModeToggle_DEke"><buttonclass="clean-btn toggleButton_gllP toggleButtonDisabled_aARS"type="button"disabled=""title="Switch between dark and light mode (currently light mode)"aria-label="Switch between dark and light mode (currently light mode)"aria-live="polite"><svgviewBox="0 0 24 24"width="24"height="24"class="lightToggleIcon_pyhR"><pathfill="currentColor"d="M12,9c1.65,0,3,1.35,3,3s-1.35,3-3,3s-3-1.35-3-3S10.35,9,12,9 M12,7c-2.76,0-5,2.24-5,5s2.24,5,5,5s5-2.24,5-5 S14.76,7,12,7L12,7z M2,13l2,0c0.55,0,1-0.45,1-1s-0.45-1-1-1l-2,0c-0.55,0-1,0.45-1,1S1.45,13,2,13z M20,13l2,0c0.55,0,1-0.45,1-1 s-0.45-1-1-1l-2,0c-0.55,0-1,0.45-1,1S19.45,13,20,13z M11,2v2c0,0.55,0.45,1,1,1s1-0.45,1-1V2c0-0.55-0.45-1-1-1S11,1.45,11,2z M11,20v2c0,0.55,0.45,1,1,1s1-0.45,1-1v-2c0-0.55-0.45-1-1-1C11.45,19,11,19.45,11,20z M5.99,4.58c-0.39-0.39-1.03-0.39-1.41,0 c-0.39,0.39-0.39,1.03,0,1.41l1.06,1.06c0.39,0.39,1.03,0.39,1.41,0s0.39-1.03,0-1.41L5.99,4.58z M18.36,16.95 c-0.39-0.39-1.03-0.39-1.41,0c-0.39,0.39-0.39,1.03,0,1.41l1.06,1.06c0.39,0.39,1.03,0.39,1.41,0c0.39-0.39,0.39-1.03,0-1.41 L18.36,16.95z M19.42,5.99c0.39-0.39,0.39-1.03,0-1.41c-0.39-0.39-1.03-0.39-1.41,0l-1.06,1.06c-0.39,0.39-0.39,1.03,0,1.41 s1.03,0.39,1.41,0L19.42,5.99z M7.05,18.36c0.39-0.39,0.39-1.03,0-1.41c-0.39-0.39-1.03-0.39-1.41,0l-1.06,1.06 c-0.39,0.39-0.39,1.03,0,1.41s1.03,0.39,1.41,0L7.05,18.36z"></path></svg><svgviewBox="0 0 24 24"width="24"height="24"class="darkToggleIcon_wfgR"><pathfill="currentColor"d="M9.37,5.51C9.19,6.15,9.1,6.82,9.1,7.5c0,4.08,3.32,7.4,7.4,7.4c0.68,0,1.35-0.09,1.99-0.27C17.45,17.19,14.93,19,12,19 c-3.86,0-7-3.14-7-7C5,9.07,6.81,6.55,9.37,5.51z M12,3c-4.97,0-9,4.03-9,9s4.03,9,9,9s9-4.03,9-9c0-0.46-0.04-0.92-0.1-1.36 c-0.98,1.37-2.58,2.26-4.4,2.26c-2.98,0-5.4-2.42-5.4-5.4c0-1.81,0.89-3.42,2.26-4.4C12.92,3.04,12.46,3,12,3L12,3z"></path></svg></button></div><divclass="navbarSearchContainer_Bca1"><buttontype="button"class="DocSearch DocSearch-Button"aria-label="Search"><spanclass="DocSearch-Button-Container"><svgwidth="20"height="20"class="DocSearch-Search-Icon"viewBox="0 0 20 20"><pathd="M14.38614.386l4.08774.0877-4.0877-4.0877c-2.
<h2class="anchor anchorWithStickyNavbar_LWe7"id="introduction">Introduction<ahref="#introduction"class="hash-link"aria-label="Direct link to Introduction"title="Direct link to Introduction"></a></h2>
<p>For this bonus you are given almost finished project - The Hangman Game. Your
task is to try the game, in case you find any bugs point them out and cover as
much of the game as possible with tests.</p>
<p>For this bonus you can get at maximum 2 K₡.</p>
<table><thead><tr><th>Item</th><th>Bonus</th></tr></thead><tbody><tr><td>Fixing bugs from failing tests</td><td>0.25</td></tr><tr><td><code>word_guessed</code></td><td>0.50</td></tr><tr><td>Hidden bug</td><td>0.50</td></tr><tr><td>Extending tests, undetectable bugs or evil bug</td><td>0.37</td></tr><tr><td>Refactor</td><td>0.38</td></tr></tbody></table>
<h2class="anchor anchorWithStickyNavbar_LWe7"id="project">Project<ahref="#project"class="hash-link"aria-label="Direct link to Project"title="Direct link to Project"></a></h2>
<p>Project consists of 2 source files - <code>hangman.c</code> and <code>main.c</code>.</p>
<p><code>main.c</code> is quite short and concise, there is nothing for you to do.</p>
<p><code>hangman.c</code> contains implementation of the game. In case you feel lost, consult
the documentation in <code>hangman.h</code> that represents an interface that can be used
for implementing the game.</p>
<p>Apart from those sources this project is a bit more complicated. <em>Game loop</em> is
realised via single encapsulated function that complicates the testing. Because
of that, there are 2 kinds of tests:</p>
<ul>
<li>
<p><em>Unit tests</em> - that are present in <code>test_hangman.c</code> and can be run via:</p>
<h3class="anchor anchorWithStickyNavbar_LWe7"id="summary-of-the-gameplay">Summary of the gameplay<ahref="#summary-of-the-gameplay"class="hash-link"aria-label="Direct link to Summary of the gameplay"title="Direct link to Summary of the gameplay"></a></h3>
<ol>
<li>Secret word gets chosen from the file that's path is given as an argument.</li>
<li>You get 8 guesses.</li>
<li>Invalid characters don't count.</li>
<li>Already guessed characters don't count, even if not included in the secret.</li>
<li>You can guess the whole word at once<!---->
<ul>
<li>If you get it right, you won, game ends.</li>
<li>If you don't get it right, you get to see the secret, game ends.</li>
</ul>
</li>
<li>In case of end of input, game finishes via force.</li>
<li>In case of invalid input, no guesses are subtracted, game carries on.</li>
<li>Letters and words are not case sensitive.</li>
</ol>
<h2class="anchor anchorWithStickyNavbar_LWe7"id="suggested-workflow">Suggested workflow<ahref="#suggested-workflow"class="hash-link"aria-label="Direct link to Suggested workflow"title="Direct link to Suggested workflow"></a></h2>
<p>As we have talked about on the seminar, I suggest you to follow
<h2class="anchor anchorWithStickyNavbar_LWe7"id="tasks">Tasks<ahref="#tasks"class="hash-link"aria-label="Direct link to Tasks"title="Direct link to Tasks"></a></h2>
<p>As to your tasks, there are multiple things wrong in this project.</p>
<ol>
<li>
<p>There are 2 "bugs" that cannot be detected via tests, i.e. they are not bugs
that affect functionality of the game.</p>
</li>
<li>
<p>There is one evil bug in <code>get_word</code>. It is not required to be fixed ;) Assign
it the lowest priority.</p>
</li>
<li>
<p>There are some tests failing. Please try to figure it out, so you have green
tests for the rest :)</p>
</li>
<li>
<p>We have gotten a bug report for <code>word_guessed</code>, all we got is</p>
<blockquote>
<p>doesn't work when there are too many <code>a</code>s</p>
</blockquote>
<p>Please try to replicate the bug and create a tests, so we don't get any
regression later on.</p>
</li>
<li>
<p>One hidden bug :) Closely non-specified, we cannot reproduce it and we were
drunk while playing the game, so we don't remember a thing. :/</p>
</li>
<li>
<p>Try to cover as much code via the tests as possible. We are not going to look
at the metrics, but DRY is violated a lot, so as a last task try to remove as
much of the duplicit code as possible.</p>
<p>Tests should help you a lot in case there are some regressions.</p>
</li>
</ol>
<hr>
<p>In case you wonder why there are always 3 same words in the file with words, it
is because of the <code>get_word</code> bug. It is not a bug that can be easily fixed, so
it is a not requirement at all and you can still get all points for the bonus ;)</p>
<h2class="anchor anchorWithStickyNavbar_LWe7"id="dictionary">Dictionary<ahref="#dictionary"class="hash-link"aria-label="Direct link to Dictionary"title="Direct link to Dictionary"></a></h2>
<h2class="anchor anchorWithStickyNavbar_LWe7"id="submitting">Submitting<ahref="#submitting"class="hash-link"aria-label="Direct link to Submitting"title="Direct link to Submitting"></a></h2>
<p>In case you have any questions, feel free to reach out to me.</p>