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</ul><h2>Unit Test Tools</h2><ul>
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<!--Weave of 'Unit Tests' generated by 7-->
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../units.html">Unit Test Tools</a></li><li><a href="index.html">syntax-test</a></li><li><a href="index.html#1">Chapter 1: Scaffolding</a></li><li><b>Unit Tests</b></li></ul><p class="purpose">How we shall test it.</p>
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<ul class="toc"><li><a href="1-ut.html#SP1">§1. </a></li><li><a href="1-ut.html#SP2">§2. Syntax tree</a></li></ul><hr class="tocbar">
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<p class="inwebparagraph"><a id="SP1"></a><b>§1. </b></p>
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<pre class="display">
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<span class="plain"><</span><span class="identifier">dividing</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">> ::=</span>
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<span class="identifier">chapter</span><span class="plain"> ... | ==> </span><span class="constant">1</span>
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<span class="identifier">section</span><span class="plain"> ... ==> </span><span class="constant">2</span>
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<span class="plain"><</span><span class="identifier">structural</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">> ::=</span>
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<span class="plain">... ==> </span><span class="constant">TRUE</span><span class="plain">; </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">FAIL_NONTERMINAL</span><span class="plain">;</span>
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<span class="plain"><</span><span class="identifier">language</span><span class="plain">-</span><span class="identifier">modifying</span><span class="plain">-</span><span class="identifier">sentence</span><span class="plain">> ::=</span>
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<span class="plain">... ==> </span><span class="constant">TRUE</span><span class="plain">; </span><span class="reserved">return</span><span class="plain"> </span><span class="constant">FAIL_NONTERMINAL</span><span class="plain">;</span>
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</pre>
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<p class="inwebparagraph"></p>
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<p class="inwebparagraph"><a id="SP2"></a><b>§2. Syntax tree. </b></p>
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<pre class="display">
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<span class="reserved">parse_node_tree</span><span class="plain"> *</span><span class="identifier">syntax_tree</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
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<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Unit::test_tree<button class="popup" onclick="togglePopup('usagePopup3')">...<span class="popuptext" id="usagePopup3">Usage of <b>Unit::test_tree</b>:<br>Program Control - <a href="1-pc.html#SP1">§1</a></span></button></span><span class="plain">(</span><span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">arg</span><span class="plain">) {</span>
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<span class="reserved">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain"> = </span><span class="functiontext"><a href="../../../inweb/docs/foundation-module/3-fln.html#SP3">Filenames::from_text</a></span><span class="plain">(</span><span class="identifier">arg</span><span class="plain">);</span>
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<span class="constant">feed_t</span><span class="plain"> </span><span class="identifier">FD</span><span class="plain"> = </span><span class="functiontext"><a href="../words-module/3-fds.html#SP3">Feeds::begin</a></span><span class="plain">();</span>
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<span class="reserved">source_file</span><span class="plain"> *</span><span class="identifier">sf</span><span class="plain"> = </span><span class="functiontext"><a href="../words-module/3-tff.html#SP3">TextFromFiles::feed_into_lexer</a></span><span class="plain">(</span><span class="identifier">F</span><span class="plain">, </span><span class="constant">NULL_GENERAL_POINTER</span><span class="plain">);</span>
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<span class="reserved">wording</span><span class="plain"> </span><span class="identifier">W</span><span class="plain"> = </span><span class="functiontext"><a href="../words-module/3-fds.html#SP3">Feeds::end</a></span><span class="plain">(</span><span class="identifier">FD</span><span class="plain">);</span>
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<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">sf</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) { </span><span class="identifier">PRINT</span><span class="plain">(</span><span class="string">"File has failed to open\n"</span><span class="plain">); </span><span class="reserved">return</span><span class="plain">; }</span>
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<span class="identifier">syntax_tree</span><span class="plain"> = </span><span class="functiontext"><a href="../syntax-module/2-pt.html#SP1">ParseTree::new_tree</a></span><span class="plain">();</span>
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<span class="identifier">PRINT</span><span class="plain">(</span><span class="string">"Read %d words\n"</span><span class="plain">, </span><span class="functiontext"><a href="../words-module/3-wrd.html#SP8">Wordings::length</a></span><span class="plain">(</span><span class="identifier">W</span><span class="plain">));</span>
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<span class="functiontext"><a href="../syntax-module/2-snt.html#SP5">Sentences::break</a></span><span class="plain">(</span><span class="identifier">syntax_tree</span><span class="plain">, </span><span class="identifier">W</span><span class="plain">);</span>
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<span class="reserved">text_stream</span><span class="plain"> *</span><span class="identifier">save_DL</span><span class="plain"> = </span><span class="identifier">DL</span><span class="plain">;</span>
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<span class="identifier">DL</span><span class="plain"> = </span><span class="constant">STDOUT</span><span class="plain">;</span>
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<span class="functiontext"><a href="../../../inweb/docs/foundation-module/2-str.html#SP20">Streams::enable_debugging</a></span><span class="plain">(</span><span class="identifier">DL</span><span class="plain">);</span>
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<span class="functiontext"><a href="../syntax-module/2-pt.html#SP45">ParseTree::log_tree</a></span><span class="plain">(</span><span class="identifier">DL</span><span class="plain">, </span><span class="identifier">syntax_tree</span><span class="plain">-></span><span class="element">root_node</span><span class="plain">);</span>
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<span class="identifier">DL</span><span class="plain"> = </span><span class="identifier">save_DL</span><span class="plain">;</span>
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<span class="plain">}</span>
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</pre>
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