/usr/share/doc/php-mockery/html/reference/demeter_chains.html is in php-mockery-doc 1.0-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 | <!DOCTYPE html>
<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Mocking Demeter Chains And Fluent Interfaces — Mockery Docs 1.0-alpha documentation</title>
<link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
<link rel="index" title="Index"
href="../genindex.html"/>
<link rel="search" title="Search" href="../search.html"/>
<link rel="top" title="Mockery Docs 1.0-alpha documentation" href="../index.html"/>
<link rel="up" title="Reference" href="index.html"/>
<link rel="next" title="Dealing with Final Classes/Methods" href="final_methods_classes.html"/>
<link rel="prev" title="Preserving Pass-By-Reference Method Parameter Behaviour" href="pass_by_reference_behaviours.html"/>
<script src="../_static/js/modernizr.min.js"></script>
</head>
<body class="wy-body-for-nav" role="document">
<div class="wy-grid-for-nav">
<nav data-toggle="wy-nav-shift" class="wy-nav-side">
<div class="wy-side-scroll">
<div class="wy-side-nav-search">
<a href="../index.html" class="icon icon-home"> Mockery Docs
</a>
<div class="version">
1.0
</div>
<div role="search">
<form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
<input type="text" name="q" placeholder="Search docs" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
</div>
<div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
<ul>
<li class="toctree-l1"><a class="reference internal" href="../getting_started/index.html">Getting Started</a></li>
</ul>
<ul class="current">
<li class="toctree-l1 current"><a class="reference internal" href="index.html">Reference</a><ul class="current">
<li class="toctree-l2"><a class="reference internal" href="creating_test_doubles.html">Creating Test Doubles</a></li>
<li class="toctree-l2"><a class="reference internal" href="expectations.html">Expectation Declarations</a></li>
<li class="toctree-l2"><a class="reference internal" href="argument_validation.html">Argument Validation</a></li>
<li class="toctree-l2"><a class="reference internal" href="alternative_should_receive_syntax.html">Alternative shouldReceive Syntax</a></li>
<li class="toctree-l2"><a class="reference internal" href="spies.html">Spies</a></li>
<li class="toctree-l2"><a class="reference internal" href="partial_mocks.html">Creating Partial Mocks</a></li>
<li class="toctree-l2"><a class="reference internal" href="protected_methods.html">Mocking Protected Methods</a></li>
<li class="toctree-l2"><a class="reference internal" href="public_properties.html">Mocking Public Properties</a></li>
<li class="toctree-l2"><a class="reference internal" href="public_static_properties.html">Mocking Public Static Methods</a></li>
<li class="toctree-l2"><a class="reference internal" href="pass_by_reference_behaviours.html">Preserving Pass-By-Reference Method Parameter Behaviour</a></li>
<li class="toctree-l2 current"><a class="current reference internal" href="#">Mocking Demeter Chains And Fluent Interfaces</a></li>
<li class="toctree-l2"><a class="reference internal" href="final_methods_classes.html">Dealing with Final Classes/Methods</a></li>
<li class="toctree-l2"><a class="reference internal" href="magic_methods.html">PHP Magic Methods</a></li>
<li class="toctree-l2"><a class="reference internal" href="phpunit_integration.html">PHPUnit Integration</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../mockery/index.html">Mockery</a></li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../cookbook/index.html">Cookbook</a></li>
</ul>
</div>
</div>
</nav>
<section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
<nav class="wy-nav-top" role="navigation" aria-label="top navigation">
<i data-toggle="wy-nav-top" class="fa fa-bars"></i>
<a href="../index.html">Mockery Docs</a>
</nav>
<div class="wy-nav-content">
<div class="rst-content">
<div role="navigation" aria-label="breadcrumbs navigation">
<ul class="wy-breadcrumbs">
<li><a href="../index.html">Docs</a> »</li>
<li><a href="index.html">Reference</a> »</li>
<li>Mocking Demeter Chains And Fluent Interfaces</li>
<li class="wy-breadcrumbs-aside">
<a href="../_sources/reference/demeter_chains.rst.txt" rel="nofollow"> View page source</a>
</li>
</ul>
<hr/>
</div>
<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
<div itemprop="articleBody">
<div class="section" id="mocking-demeter-chains-and-fluent-interfaces">
<span id="index-0"></span><h1>Mocking Demeter Chains And Fluent Interfaces<a class="headerlink" href="#mocking-demeter-chains-and-fluent-interfaces" title="Permalink to this headline">¶</a></h1>
<p>Both of these terms refer to the growing practice of invoking statements
similar to:</p>
<div class="highlight-php"><div class="highlight"><pre><span></span><span class="nv">$object</span><span class="o">-></span><span class="na">foo</span><span class="p">()</span><span class="o">-></span><span class="na">bar</span><span class="p">()</span><span class="o">-></span><span class="na">zebra</span><span class="p">()</span><span class="o">-></span><span class="na">alpha</span><span class="p">()</span><span class="o">-></span><span class="na">selfDestruct</span><span class="p">();</span>
</pre></div>
</div>
<p>The long chain of method calls isn’t necessarily a bad thing, assuming they
each link back to a local object the calling class knows. As a fun example,
Mockery’s long chains (after the first <code class="docutils literal"><span class="pre">shouldReceive()</span></code> method) all call to
the same instance of <code class="docutils literal"><span class="pre">\Mockery\Expectation</span></code>. However, sometimes this is not
the case and the chain is constantly crossing object boundaries.</p>
<p>In either case, mocking such a chain can be a horrible task. To make it easier
Mockery supports demeter chain mocking. Essentially, we shortcut through the
chain and return a defined value from the final call. For example, let’s
assume <code class="docutils literal"><span class="pre">selfDestruct()</span></code> returns the string “Ten!” to $object (an instance of
<code class="docutils literal"><span class="pre">CaptainsConsole</span></code>). Here’s how we could mock it.</p>
<div class="highlight-php"><div class="highlight"><pre><span></span><span class="nv">$mock</span> <span class="o">=</span> <span class="nx">\Mockery</span><span class="o">::</span><span class="na">mock</span><span class="p">(</span><span class="s1">'CaptainsConsole'</span><span class="p">);</span>
<span class="nv">$mock</span><span class="o">-></span><span class="na">shouldReceive</span><span class="p">(</span><span class="s1">'foo->bar->zebra->alpha->selfDestruct'</span><span class="p">)</span><span class="o">-></span><span class="na">andReturn</span><span class="p">(</span><span class="s1">'Ten!'</span><span class="p">);</span>
</pre></div>
</div>
<p>The above expectation can follow any previously seen format or expectation,
except that the method name is simply the string of all expected chain calls
separated by <code class="docutils literal"><span class="pre">-></span></code>. Mockery will automatically setup the chain of expected
calls with its final return values, regardless of whatever intermediary object
might be used in the real implementation.</p>
<p>Arguments to all members of the chain (except the final call) are ignored in
this process.</p>
</div>
</div>
<div class="articleComments">
</div>
</div>
<footer>
<div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
<a href="final_methods_classes.html" class="btn btn-neutral float-right" title="Dealing with Final Classes/Methods" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
<a href="pass_by_reference_behaviours.html" class="btn btn-neutral" title="Preserving Pass-By-Reference Method Parameter Behaviour" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
</div>
<hr/>
<div role="contentinfo">
<p>
© Copyright Pádraic Brady, Dave Marshall and contributors.
</p>
</div>
Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
</footer>
</div>
</div>
</section>
</div>
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT:'../',
VERSION:'1.0-alpha',
COLLAPSE_INDEX:false,
FILE_SUFFIX:'.html',
HAS_SOURCE: true,
SOURCELINK_SUFFIX: '.txt'
};
</script>
<script type="text/javascript" src="../_static/jquery.js"></script>
<script type="text/javascript" src="../_static/underscore.js"></script>
<script type="text/javascript" src="../_static/doctools.js"></script>
<script type="text/javascript" src="../_static/js/theme.js"></script>
<script type="text/javascript">
jQuery(function () {
SphinxRtdTheme.StickyNav.enable();
});
</script>
</body>
</html>
|