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<div class="title">test_utils.hpp</div> </div>
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<a href="a00031.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2011 Google Inc.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// All rights reserved.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// modification, are permitted provided that the following conditions are</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// met:</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// * Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// * Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// notice, this list of conditions and the following disclaimer in the</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// documentation and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// * Neither the name of Google Inc. nor the names of its contributors</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// may be used to endorse or promote products derived from this software</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// without specific prior written permission.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">//</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#if !defined(LUTOK_TEST_UTILS_HPP)</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"></span><span class="preprocessor"># define LUTOK_TEST_UTILS_HPP</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"></span><span class="preprocessor"># error "test_utils.hpp can only be included once"</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include <atf-c++.hpp></span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include "<a class="code" href="a00013.html" title="Provides direct access to the C state of the Lua wrappers.">c_gate.hpp</a>"</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#include "<a class="code" href="a00019.html" title="Exception types raised by lutok.">exceptions.hpp</a>"</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#include "<a class="code" href="a00028.html" title="Provides the state wrapper class for the Lua C state.">state.hpp</a>"</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div>
<div class="line"><a name="l00049"></a><span class="lineno"><a class="code" href="a00035.html"> 49</a></span> <span class="keyword">namespace </span>{</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="code" href="a00031.html#a8f10eccfd8799f9631163705fb92ea5a"> 61</a></span> <span class="preprocessor">#define REQUIRE_API_ERROR(exp_api_function, statement) \</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor"> do { \</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor"> try { \</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor"> statement; \</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor"> ATF_FAIL("api_error not raised by " #statement); \</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor"> } catch (const lutok::api_error& api_error) { \</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor"> ATF_REQUIRE_EQ(exp_api_function, api_error.api_function()); \</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor"> } while (0)</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="keyword">static</span> <span class="keyword">inline</span> lua_State*</div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="code" href="a00035.html#af152deed7545b6ecb284e113c02ba6e2"> 80</a></span> <a class="code" href="a00035.html#af152deed7545b6ecb284e113c02ba6e2" title="Gets the pointer to the internal lua_State of a state object.">raw</a>(<a class="code" href="a00009.html" title="A RAII model for the Lua state.">lutok::state</a>& state)</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> {</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">return</span> <a class="code" href="a00011.html" title="Gateway to the raw C state of Lua.">lutok::state_c_gate</a>(state).<a class="code" href="a00011.html#a9ca464b39c2f2ee1326590893d12aeba" title="Returns the C native Lua state.">c_state</a>();</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> }</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
<div class="line"><a name="l00092"></a><span class="lineno"><a class="code" href="a00001.html"> 92</a></span> <span class="keyword">class </span><a class="code" href="a00001.html" title="Ensures that the Lua stack maintains its original height upon exit.">stack_balance_checker</a> {</div>
<div class="line"><a name="l00094"></a><span class="lineno"><a class="code" href="a00001.html#a5a82e10af0379f4961958389b461ad7b"> 94</a></span>  <a class="code" href="a00009.html" title="A RAII model for the Lua state.">lutok::state</a>& <a class="code" href="a00001.html#a5a82e10af0379f4961958389b461ad7b" title="The Lua state.">_state</a>;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
<div class="line"><a name="l00097"></a><span class="lineno"><a class="code" href="a00001.html#ae83eb0b565eeec675516b790d5526391"> 97</a></span>  <span class="keywordtype">bool</span> <a class="code" href="a00001.html#ae83eb0b565eeec675516b790d5526391" title="Whether to install a sentinel on the stack for balance enforcement.">_with_sentinel</a>;</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
<div class="line"><a name="l00100"></a><span class="lineno"><a class="code" href="a00001.html#ab9d0aae743f764d0b7a71e9c2202f9d9"> 100</a></span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="a00001.html#ab9d0aae743f764d0b7a71e9c2202f9d9" title="The height of the stack on creation.">_old_count</a>;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00110"></a><span class="lineno"><a class="code" href="a00001.html#a1801f4117fb8801b914c7a834992fc1f"> 110</a></span>  <a class="code" href="a00001.html" title="Ensures that the Lua stack maintains its original height upon exit.">stack_balance_checker</a>(<a class="code" href="a00009.html" title="A RAII model for the Lua state.">lutok::state</a>& state_,</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> with_sentinel_ = <span class="keyword">true</span>) :</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  _state(state_),</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  _with_sentinel(with_sentinel_),</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  _old_count(_state.get_top())</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  {</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">if</span> (_with_sentinel)</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  _state.push_integer(987654321);</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  }</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div>
<div class="line"><a name="l00124"></a><span class="lineno"><a class="code" href="a00001.html#a4a77624ad3c7c3968056993d05b8d076"> 124</a></span>  ~<a class="code" href="a00001.html" title="Ensures that the Lua stack maintains its original height upon exit.">stack_balance_checker</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  {</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">if</span> (_with_sentinel) {</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">if</span> (!_state.is_number(-1) || _state.to_integer(-1) != 987654321)</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  ATF_FAIL(<span class="stringliteral">"Stack corrupted: sentinel not found"</span>);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  _state.pop(1);</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  }</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> new_count = _state.get_top();</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">if</span> (_old_count != new_count)</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">//ATF_FAIL(F("Stack not balanced: before %d, after %d") %</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">// _old_count % new_count);</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  ATF_FAIL(<span class="stringliteral">"Stack not balanced"</span>);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> };</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> } <span class="comment">// anonymous namespace</span></div>
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