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<div class="title">rle-test.cc</div> </div>
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<a href="rle-test_8cc.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2012 Cloudera Inc.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// you may not use this file except in compliance with the License.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment">// distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment">// See the License for the specific language governing permissions and</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment">// limitations under the License.</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &lt;iostream&gt;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#include &lt;boost/utility.hpp&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &lt;gtest/gtest.h&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &lt;math.h&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="init_8h.html">common/init.h</a>&quot;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="rle-encoding_8h.html">util/rle-encoding.h</a>&quot;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="bit-stream-utils_8inline_8h.html">util/bit-stream-utils.inline.h</a>&quot;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="names_8h.html">common/names.h</a>&quot;</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="keyword">namespace </span>impala {</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;</div>
<div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a4b48b78509137c1be8b48bec7c6755fc"> 31</a></span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="namespaceimpala.html#a4b48b78509137c1be8b48bec7c6755fc">MAX_WIDTH</a> = 32;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;</div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a1a68cf0ef6d2288cea903096e11e4353"> 33</a></span>&#160;<a class="code" href="namespaceimpala.html#a81e39acff5a125a058cc0c2dc4a125c6">TEST</a>(BitArray, TestBool) {</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> len = 8;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; uint8_t buffer[len];</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <a class="code" href="classimpala_1_1BitWriter.html">BitWriter</a> writer(buffer, len);</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="comment">// Write alternating 0&#39;s and 1&#39;s</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 8; ++i) {</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keywordtype">bool</span> result = writer.<a class="code" href="classimpala_1_1BitWriter.html#ae21363cc6a60255901c4fbfe12401a97">PutValue</a>(i % 2, 1);</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; }</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; writer.<a class="code" href="classimpala_1_1BitWriter.html#ad13d095b59cc0a7a3653c01dbb2640b6">Flush</a>();</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; EXPECT_EQ((<span class="keywordtype">int</span>)buffer[0], BOOST_BINARY(1 0 1 0 1 0 1 0));</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="comment">// Write 00110011</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 8; ++i) {</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keywordtype">bool</span> result = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keywordflow">switch</span> (i) {</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keywordflow">case</span> 0:</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keywordflow">case</span> 1:</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keywordflow">case</span> 4:</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keywordflow">case</span> 5:</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; result = writer.<a class="code" href="classimpala_1_1BitWriter.html#ae21363cc6a60255901c4fbfe12401a97">PutValue</a>(<span class="keyword">false</span>, 1);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; result = writer.<a class="code" href="classimpala_1_1BitWriter.html#ae21363cc6a60255901c4fbfe12401a97">PutValue</a>(<span class="keyword">true</span>, 1);</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; }</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; }</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; writer.<a class="code" href="classimpala_1_1BitWriter.html#ad13d095b59cc0a7a3653c01dbb2640b6">Flush</a>();</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="comment">// Validate the exact bit value</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; EXPECT_EQ((<span class="keywordtype">int</span>)buffer[0], BOOST_BINARY(1 0 1 0 1 0 1 0));</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; EXPECT_EQ((<span class="keywordtype">int</span>)buffer[1], BOOST_BINARY(1 1 0 0 1 1 0 0));</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="comment">// Use the reader and validate</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <a class="code" href="classimpala_1_1BitReader.html">BitReader</a> reader(buffer, len);</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 8; ++i) {</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="keywordtype">bool</span> val = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="keywordtype">bool</span> result = reader.<a class="code" href="classimpala_1_1BitReader.html#a6fb11125149229ec58ec2340d7d457c8">GetValue</a>(1, &amp;val);</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; EXPECT_EQ(val, i % 2);</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; }</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 8; ++i) {</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keywordtype">bool</span> val = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keywordtype">bool</span> result = reader.<a class="code" href="classimpala_1_1BitReader.html#a6fb11125149229ec58ec2340d7d457c8">GetValue</a>(1, &amp;val);</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keywordflow">switch</span> (i) {</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="keywordflow">case</span> 0:</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordflow">case</span> 1:</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="keywordflow">case</span> 4:</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="keywordflow">case</span> 5:</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; EXPECT_EQ(val, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; EXPECT_EQ(val, <span class="keyword">true</span>);</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; }</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;}</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;<span class="comment">// Writes &#39;num_vals&#39; values with width &#39;bit_width&#39; and reads them back.</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a12142df6d4735fb1d90f5136dfb6e3b0"> 97</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespaceimpala.html#a12142df6d4735fb1d90f5136dfb6e3b0">TestBitArrayValues</a>(<span class="keywordtype">int</span> bit_width, <span class="keywordtype">int</span> num_vals) {</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> len = <a class="code" href="classimpala_1_1BitUtil.html#a372c4cce3b2fd79c710ec36d01afda07">BitUtil::Ceil</a>(bit_width * num_vals, 8);</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="keyword">const</span> <a class="code" href="classuint64__t.html">uint64_t</a> mod = bit_width == 64? 1 : 1LL &lt;&lt; bit_width;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; uint8_t buffer[len];</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <a class="code" href="classimpala_1_1BitWriter.html">BitWriter</a> writer(buffer, len);</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; num_vals; ++i) {</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keywordtype">bool</span> result = writer.<a class="code" href="classimpala_1_1BitWriter.html#ae21363cc6a60255901c4fbfe12401a97">PutValue</a>(i % mod, bit_width);</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; }</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; writer.<a class="code" href="classimpala_1_1BitWriter.html#ad13d095b59cc0a7a3653c01dbb2640b6">Flush</a>();</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; EXPECT_EQ(writer.<a class="code" href="classimpala_1_1BitWriter.html#a556a5c41e337ace2f621f84d6b86e285">bytes_written</a>(), len);</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <a class="code" href="classimpala_1_1BitReader.html">BitReader</a> reader(buffer, len);</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; num_vals; ++i) {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; int64_t val;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keywordtype">bool</span> result = reader.GetValue(bit_width, &amp;val);</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; EXPECT_EQ(val, i % mod);</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; }</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; EXPECT_EQ(reader.bytes_left(), 0);</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160;}</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;</div>
<div class="line"><a name="l00120"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a39ceefd9e5436ea75ddb9fb53616bde3"> 120</a></span>&#160;<a class="code" href="namespaceimpala.html#a81e39acff5a125a058cc0c2dc4a125c6">TEST</a>(BitArray, TestValues) {</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> width = 0; width &lt;= <a class="code" href="namespaceimpala.html#a4b48b78509137c1be8b48bec7c6755fc">MAX_WIDTH</a>; ++width) {</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <a class="code" href="namespaceimpala.html#a12142df6d4735fb1d90f5136dfb6e3b0">TestBitArrayValues</a>(width, 1);</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <a class="code" href="namespaceimpala.html#a12142df6d4735fb1d90f5136dfb6e3b0">TestBitArrayValues</a>(width, 2);</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <span class="comment">// Don&#39;t write too many values</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <a class="code" href="namespaceimpala.html#a12142df6d4735fb1d90f5136dfb6e3b0">TestBitArrayValues</a>(width, (width &lt; 12) ? (1 &lt;&lt; width) : 4096);</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <a class="code" href="namespaceimpala.html#a12142df6d4735fb1d90f5136dfb6e3b0">TestBitArrayValues</a>(width, 1024);</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; }</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160;}</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;<span class="comment">// Test some mixed values</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"><a class="line" href="namespaceimpala.html#af0e574e488e096a4fdfa3c3f25b32e3b"> 131</a></span>&#160;<a class="code" href="namespaceimpala.html#a81e39acff5a125a058cc0c2dc4a125c6">TEST</a>(BitArray, TestMixed) {</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> len = 1024;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; uint8_t buffer[len];</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <span class="keywordtype">bool</span> parity = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <a class="code" href="classimpala_1_1BitWriter.html">BitWriter</a> writer(buffer, len);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; len; ++i) {</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keywordtype">bool</span> result;</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <span class="keywordflow">if</span> (i % 2 == 0) {</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; result = writer.<a class="code" href="classimpala_1_1BitWriter.html#ae21363cc6a60255901c4fbfe12401a97">PutValue</a>(parity, 1);</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; parity = !parity;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; result = writer.<a class="code" href="classimpala_1_1BitWriter.html#ae21363cc6a60255901c4fbfe12401a97">PutValue</a>(i, 10);</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; }</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; }</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; writer.<a class="code" href="classimpala_1_1BitWriter.html#ad13d095b59cc0a7a3653c01dbb2640b6">Flush</a>();</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; parity = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <a class="code" href="classimpala_1_1BitReader.html">BitReader</a> reader(buffer, len);</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; len; ++i) {</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="keywordtype">bool</span> result;</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keywordflow">if</span> (i % 2 == 0) {</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="keywordtype">bool</span> val;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; result = reader.<a class="code" href="classimpala_1_1BitReader.html#a6fb11125149229ec58ec2340d7d457c8">GetValue</a>(1, &amp;val);</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; EXPECT_EQ(val, parity);</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; parity = !parity;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="keywordtype">int</span> val;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; result = reader.<a class="code" href="classimpala_1_1BitReader.html#a6fb11125149229ec58ec2340d7d457c8">GetValue</a>(10, &amp;val);</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; EXPECT_EQ(val, i);</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; }</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; }</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;}</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160;<span class="comment">// Validates encoding of values by encoding and decoding them. If</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160;<span class="comment">// expected_encoding != NULL, also validates that the encoded buffer is</span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160;<span class="comment">// exactly &#39;expected_encoding&#39;.</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160;<span class="comment">// if expected_len is not -1, it will validate the encoded size is correct.</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc"> 171</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc">ValidateRle</a>(<span class="keyword">const</span> vector&lt;int&gt;&amp; values, <span class="keywordtype">int</span> bit_width,</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; uint8_t* expected_encoding, <span class="keywordtype">int</span> expected_len) {</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> len = 64 * 1024;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; uint8_t buffer[len];</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; EXPECT_LE(expected_len, len);</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html">RleEncoder</a> encoder(buffer, len, bit_width);</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; values.size(); ++i) {</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="keywordtype">bool</span> result = encoder.<a class="code" href="classimpala_1_1RleEncoder.html#a8040c037f3b5abbe1a014c5bf2119dc1">Put</a>(values[i]);</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; }</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="keywordtype">int</span> encoded_len = encoder.<a class="code" href="classimpala_1_1RleEncoder.html#a42de9e2eaadc17ccc243ca2bb4be4859">Flush</a>();</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <span class="keywordflow">if</span> (expected_len != -1) {</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; EXPECT_EQ(encoded_len, expected_len);</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; }</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; <span class="keywordflow">if</span> (expected_encoding != NULL) {</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; EXPECT_TRUE(memcmp(buffer, expected_encoding, expected_len) == 0);</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; }</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; <span class="comment">// Verify read</span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; <a class="code" href="classimpala_1_1RleDecoder.html">RleDecoder</a> decoder(buffer, len, bit_width);</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; values.size(); ++i) {</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <a class="code" href="classuint64__t.html">uint64_t</a> val;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; <span class="keywordtype">bool</span> result = decoder.<a class="code" href="classimpala_1_1RleDecoder.html#a249483a95b175ad3ec2fd21cbdd384f5">Get</a>(&amp;val);</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; EXPECT_EQ(values[i], val);</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; }</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;}</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160;</div>
<div class="line"><a name="l00201"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a75ce81ca0bb8885cc1cdcacea2c0fa31"> 201</a></span>&#160;<a class="code" href="namespaceimpala.html#a81e39acff5a125a058cc0c2dc4a125c6">TEST</a>(Rle, SpecificSequences) {</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> len = 1024;</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; uint8_t expected_buffer[len];</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; vector&lt;int&gt; values;</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; <span class="comment">// Test 50 0&#39; followed by 50 1&#39;s</span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; values.resize(100);</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 50; ++i) {</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; values[i] = 0;</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; }</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 50; i &lt; 100; ++i) {</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; values[i] = 1;</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; }</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160;</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; <span class="comment">// expected_buffer valid for bit width &lt;= 1 byte</span></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; expected_buffer[0] = (50 &lt;&lt; 1);</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; expected_buffer[1] = 0;</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; expected_buffer[2] = (50 &lt;&lt; 1);</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; expected_buffer[3] = 1;</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> width = 1; width &lt;= 8; ++width) {</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <a class="code" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc">ValidateRle</a>(values, width, expected_buffer, 4);</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; }</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160;</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> width = 9; width &lt;= <a class="code" href="namespaceimpala.html#a4b48b78509137c1be8b48bec7c6755fc">MAX_WIDTH</a>; ++width) {</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; <a class="code" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc">ValidateRle</a>(values, width, NULL, 2 * (1 + <a class="code" href="classimpala_1_1BitUtil.html#a372c4cce3b2fd79c710ec36d01afda07">BitUtil::Ceil</a>(width, 8)));</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; }</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160;</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; <span class="comment">// Test 100 0&#39;s and 1&#39;s alternating</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 100; ++i) {</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; values[i] = i % 2;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; }</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; <span class="keywordtype">int</span> num_groups = <a class="code" href="classimpala_1_1BitUtil.html#a372c4cce3b2fd79c710ec36d01afda07">BitUtil::Ceil</a>(100, 8);</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; expected_buffer[0] = (num_groups &lt;&lt; 1) | 1;</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i &lt;= 100/8; ++i) {</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; expected_buffer[i] = BOOST_BINARY(1 0 1 0 1 0 1 0);</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; }</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; <span class="comment">// Values for the last 4 0 and 1&#39;s. The upper 4 bits should be padded to 0.</span></div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; expected_buffer[100/8 + 1] = BOOST_BINARY(0 0 0 0 1 0 1 0);</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160;</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; <span class="comment">// num_groups and expected_buffer only valid for bit width = 1</span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; <a class="code" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc">ValidateRle</a>(values, 1, expected_buffer, 1 + num_groups);</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> width = 2; width &lt;= <a class="code" href="namespaceimpala.html#a4b48b78509137c1be8b48bec7c6755fc">MAX_WIDTH</a>; ++width) {</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; <span class="keywordtype">int</span> num_values = <a class="code" href="classimpala_1_1BitUtil.html#a372c4cce3b2fd79c710ec36d01afda07">BitUtil::Ceil</a>(100, 8) * 8;</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; <a class="code" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc">ValidateRle</a>(values, width, NULL, 1 + <a class="code" href="classimpala_1_1BitUtil.html#a372c4cce3b2fd79c710ec36d01afda07">BitUtil::Ceil</a>(width * num_values, 8));</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; }</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160;}</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160;</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160;<span class="comment">// ValidateRle on &#39;num_vals&#39; values with width &#39;bit_width&#39;. If &#39;value&#39; != -1, that value</span></div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160;<span class="comment">// is used, otherwise alternating values are used.</span></div>
<div class="line"><a name="l00250"></a><span class="lineno"><a class="line" href="namespaceimpala.html#ab44d4358d586e54161fa043407af0e43"> 250</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespaceimpala.html#ab44d4358d586e54161fa043407af0e43">TestRleValues</a>(<span class="keywordtype">int</span> bit_width, <span class="keywordtype">int</span> num_vals, <span class="keywordtype">int</span> value = -1) {</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; <span class="keyword">const</span> <a class="code" href="classuint64__t.html">uint64_t</a> mod = (bit_width == 64) ? 1 : 1LL &lt;&lt; bit_width;</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; vector&lt;int&gt; values;</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> v = 0; v &lt; num_vals; ++v) {</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; values.push_back((value != -1) ? value : (v % mod));</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; }</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; <a class="code" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc">ValidateRle</a>(values, bit_width, NULL, -1);</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160;}</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160;</div>
<div class="line"><a name="l00259"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a571e982d1636e92bd3da9fbbc1085d9f"> 259</a></span>&#160;<a class="code" href="namespaceimpala.html#a81e39acff5a125a058cc0c2dc4a125c6">TEST</a>(Rle, TestValues) {</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> width = 1; width &lt;= <a class="code" href="namespaceimpala.html#a4b48b78509137c1be8b48bec7c6755fc">MAX_WIDTH</a>; ++width) {</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; <a class="code" href="namespaceimpala.html#ab44d4358d586e54161fa043407af0e43">TestRleValues</a>(width, 1);</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; <a class="code" href="namespaceimpala.html#ab44d4358d586e54161fa043407af0e43">TestRleValues</a>(width, 1024);</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; <a class="code" href="namespaceimpala.html#ab44d4358d586e54161fa043407af0e43">TestRleValues</a>(width, 1024, 0);</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; <a class="code" href="namespaceimpala.html#ab44d4358d586e54161fa043407af0e43">TestRleValues</a>(width, 1024, 1);</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; }</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160;}</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160;</div>
<div class="line"><a name="l00268"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a88f3d651d430ac5cee890a35213640d5"> 268</a></span>&#160;<a class="code" href="namespaceimpala.html#a81e39acff5a125a058cc0c2dc4a125c6">TEST</a>(Rle, BitWidthZeroRepeated) {</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; uint8_t buffer[1];</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> num_values = 15;</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; buffer[0] = num_values &lt;&lt; 1; <span class="comment">// repeated indicator byte</span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <a class="code" href="classimpala_1_1RleDecoder.html">RleDecoder</a> decoder(buffer, <span class="keyword">sizeof</span>(buffer), 0);</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; uint8_t val;</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; num_values; ++i) {</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; <span class="keywordtype">bool</span> result = decoder.<a class="code" href="classimpala_1_1RleDecoder.html#a249483a95b175ad3ec2fd21cbdd384f5">Get</a>(&amp;val);</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; EXPECT_EQ(val, 0); <span class="comment">// can only encode 0s with bit width 0</span></div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; }</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; EXPECT_FALSE(decoder.<a class="code" href="classimpala_1_1RleDecoder.html#a249483a95b175ad3ec2fd21cbdd384f5">Get</a>(&amp;val));</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160;}</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160;</div>
<div class="line"><a name="l00282"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a4d15c9b822083f064edbc59bcae36f9f"> 282</a></span>&#160;<a class="code" href="namespaceimpala.html#a81e39acff5a125a058cc0c2dc4a125c6">TEST</a>(Rle, BitWidthZeroLiteral) {</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; uint8_t buffer[1];</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> num_groups = 4;</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; buffer[0] = num_groups &lt;&lt; 1 | 1; <span class="comment">// literal indicator byte</span></div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; <a class="code" href="classimpala_1_1RleDecoder.html">RleDecoder</a> decoder = <a class="code" href="classimpala_1_1RleDecoder.html">RleDecoder</a>(buffer, <span class="keyword">sizeof</span>(buffer), 0);</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> num_values = num_groups * 8;</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; uint8_t val;</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; num_values; ++i) {</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; <span class="keywordtype">bool</span> result = decoder.<a class="code" href="classimpala_1_1RleDecoder.html#a249483a95b175ad3ec2fd21cbdd384f5">Get</a>(&amp;val);</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; EXPECT_EQ(val, 0); <span class="comment">// can only encode 0s with bit width 0</span></div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; }</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; EXPECT_FALSE(decoder.<a class="code" href="classimpala_1_1RleDecoder.html#a249483a95b175ad3ec2fd21cbdd384f5">Get</a>(&amp;val));</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160;}</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160;</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160;<span class="comment">// Test that writes out a repeated group and then a literal</span></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160;<span class="comment">// group but flush before finishing.</span></div>
<div class="line"><a name="l00299"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a731f7fa6fd72d65e3704ad7cfd825d6a"> 299</a></span>&#160;<a class="code" href="namespaceimpala.html#a81e39acff5a125a058cc0c2dc4a125c6">TEST</a>(BitRle, Flush) {</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160; vector&lt;int&gt; values;</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 16; ++i) values.push_back(1);</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; values.push_back(0);</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160; <a class="code" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc">ValidateRle</a>(values, 1, NULL, -1);</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; values.push_back(1);</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160; <a class="code" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc">ValidateRle</a>(values, 1, NULL, -1);</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; values.push_back(1);</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160; <a class="code" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc">ValidateRle</a>(values, 1, NULL, -1);</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160; values.push_back(1);</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; <a class="code" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc">ValidateRle</a>(values, 1, NULL, -1);</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160;}</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160;</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160;<span class="comment">// Test some random sequences.</span></div>
<div class="line"><a name="l00313"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a861042c3b255f29df557ba0a8fcf1aff"> 313</a></span>&#160;<a class="code" href="namespaceimpala.html#a81e39acff5a125a058cc0c2dc4a125c6">TEST</a>(BitRle, Random) {</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; <span class="keywordtype">int</span> iters = 0;</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160; <span class="keywordflow">while</span> (iters &lt; 1000) {</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; srand(iters++);</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; <span class="keywordflow">if</span> (iters % 10000 == 0) LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Seed: &quot;</span> &lt;&lt; iters;</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; vector&lt;int&gt; values;</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; <span class="keywordtype">bool</span> parity = 0;</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 1000; ++i) {</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; <span class="keywordtype">int</span> group_size = rand() % 20 + 1;</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; <span class="keywordflow">if</span> (group_size &gt; 16) {</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160; group_size = 1;</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160; }</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; group_size; ++i) {</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160; values.push_back(parity);</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; }</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; parity = !parity;</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; }</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; <a class="code" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc">ValidateRle</a>(values, (iters % <a class="code" href="namespaceimpala.html#a4b48b78509137c1be8b48bec7c6755fc">MAX_WIDTH</a>) + 1, NULL, -1);</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; }</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160;}</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160;</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160;<span class="comment">// Test a sequence of 1 0&#39;s, 2 1&#39;s, 3 0&#39;s. etc</span></div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160;<span class="comment">// e.g. 011000111100000</span></div>
<div class="line"><a name="l00336"></a><span class="lineno"><a class="line" href="namespaceimpala.html#aeaa80f361e4ea1295b373c4d91345aea"> 336</a></span>&#160;<a class="code" href="namespaceimpala.html#a81e39acff5a125a058cc0c2dc4a125c6">TEST</a>(BitRle, RepeatedPattern) {</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160; vector&lt;int&gt; values;</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> min_run = 1;</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> max_run = 32;</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160;</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = min_run; i &lt;= max_run; ++i) {</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160; <span class="keywordtype">int</span> v = i % 2;</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; i; ++j) {</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160; values.push_back(v);</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160; }</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160; }</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160;</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160; <span class="comment">// And go back down again</span></div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = max_run; i &gt;= min_run; --i) {</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; <span class="keywordtype">int</span> v = i % 2;</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; i; ++j) {</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160; values.push_back(v);</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160; }</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160; }</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160;</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160; <a class="code" href="namespaceimpala.html#a023764914e7d52686346f9cb43a20cfc">ValidateRle</a>(values, 1, NULL, -1);</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160;}</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160;</div>
<div class="line"><a name="l00359"></a><span class="lineno"><a class="line" href="namespaceimpala.html#a106e9f07a9fbbbc1a5ecb75ec136a536"> 359</a></span>&#160;<a class="code" href="namespaceimpala.html#a81e39acff5a125a058cc0c2dc4a125c6">TEST</a>(BitRle, Overflow) {</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> bit_width = 1; bit_width &lt; 32; bit_width += 3) {</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> len = <a class="code" href="classimpala_1_1RleEncoder.html#a526b08c19c9e81ce69b4e3fa355e568f">RleEncoder::MinBufferSize</a>(bit_width);</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160; uint8_t buffer[len];</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160; <span class="keywordtype">int</span> num_added = 0;</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160; <span class="keywordtype">bool</span> parity = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160;</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160; <a class="code" href="classimpala_1_1RleEncoder.html">RleEncoder</a> encoder(buffer, len, bit_width);</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>&#160; <span class="comment">// Insert alternating true/false until there is no space left</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160; <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160; <span class="keywordtype">bool</span> result = encoder.<a class="code" href="classimpala_1_1RleEncoder.html#a8040c037f3b5abbe1a014c5bf2119dc1">Put</a>(parity);</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160; parity = !parity;</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160; <span class="keywordflow">if</span> (!result) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160; ++num_added;</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160; }</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160;</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160; <span class="keywordtype">int</span> bytes_written = encoder.<a class="code" href="classimpala_1_1RleEncoder.html#a42de9e2eaadc17ccc243ca2bb4be4859">Flush</a>();</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160; EXPECT_LE(bytes_written, len);</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160; EXPECT_GT(num_added, 0);</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160;</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160; <a class="code" href="classimpala_1_1RleDecoder.html">RleDecoder</a> decoder(buffer, bytes_written, bit_width);</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160; parity = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160; uint32_t v;</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; num_added; ++i) {</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160; <span class="keywordtype">bool</span> result = decoder.<a class="code" href="classimpala_1_1RleDecoder.html#a249483a95b175ad3ec2fd21cbdd384f5">Get</a>(&amp;v);</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>&#160; EXPECT_TRUE(result);</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>&#160; EXPECT_EQ(v, parity);</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>&#160; parity = !parity;</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>&#160; }</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>&#160; <span class="comment">// Make sure we get false when reading past end a couple times.</span></div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>&#160; EXPECT_FALSE(decoder.<a class="code" href="classimpala_1_1RleDecoder.html#a249483a95b175ad3ec2fd21cbdd384f5">Get</a>(&amp;v));</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>&#160; EXPECT_FALSE(decoder.<a class="code" href="classimpala_1_1RleDecoder.html#a249483a95b175ad3ec2fd21cbdd384f5">Get</a>(&amp;v));</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>&#160; }</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>&#160;}</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>&#160;</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>&#160;}</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>&#160;</div>
<div class="line"><a name="l00396"></a><span class="lineno"><a class="line" href="rle-test_8cc.html#a3c04138a5bfe5d72780bb7e82a18e627"> 396</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="rle-test_8cc.html#a3c04138a5bfe5d72780bb7e82a18e627">main</a>(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv) {</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>&#160; ::testing::InitGoogleTest(&amp;argc, argv);</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>&#160; <a class="code" href="namespaceimpala.html#ad1fa91f70d2090b45d7799aa8ba5a3bc">impala::InitCommonRuntime</a>(argc, argv, <span class="keyword">true</span>);</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160; <span class="keywordflow">return</span> RUN_ALL_TESTS();</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>&#160;}</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>&#160;</div>
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<div class="ttc" id="classimpala_1_1RleEncoder_html"><div class="ttname"><a href="classimpala_1_1RleEncoder.html">impala::RleEncoder</a></div><div class="ttdef"><b>Definition:</b> <a href="rle-encoding_8h_source.html#l00111">rle-encoding.h:111</a></div></div>
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<div class="ttc" id="rle-encoding_8h_html"><div class="ttname"><a href="rle-encoding_8h.html">rle-encoding.h</a></div></div>
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<div class="ttc" id="bit-stream-utils_8inline_8h_html"><div class="ttname"><a href="bit-stream-utils_8inline_8h.html">bit-stream-utils.inline.h</a></div></div>
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<div class="ttc" id="classimpala_1_1BitReader_html"><div class="ttname"><a href="classimpala_1_1BitReader.html">impala::BitReader</a></div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8h_source.html#l00092">bit-stream-utils.h:92</a></div></div>
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<div class="ttc" id="classimpala_1_1BitWriter_html"><div class="ttname"><a href="classimpala_1_1BitWriter.html">impala::BitWriter</a></div><div class="ttdef"><b>Definition:</b> <a href="bit-stream-utils_8h_source.html#l00030">bit-stream-utils.h:30</a></div></div>
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<div class="ttc" id="names_8h_html"><div class="ttname"><a href="names_8h.html">names.h</a></div></div>
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