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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../services.html">Services</a></li><li><a href="index.html">problems-test</a></li><li><a href="index.html#1">Chapter 1: Scaffolding</a></li><li><b>Unit Tests</b></li></ul></div>
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<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. Minimal Preform grammar</a></li><li><a href="1-ut.html#SP4">§4. Syntax tree</a></li></ul><hr class="tocbar">
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b></p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">parse_node_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">syntax_tree</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. Minimal Preform grammar. </b>Only <span class="extract"><span class="extract-syntax"><dividing-sentence></span></span> can ever match, since the others are wired to match
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any text but then fail.
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</p>
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<pre class="Preform-displayed-code all-displayed-code code-font">
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<span class="Preform-function-syntax"><dividing-sentence></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
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<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">chapter</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { 1, - }</span>
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<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">section</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { 2, - }</span>
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<span class="Preform-function-syntax"><structural-sentence></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
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<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { fail }</span>
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<span class="Preform-function-syntax"><language-modifying-sentence></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
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<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { fail }</span>
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<span class="Preform-function-syntax"><comma-divisible-sentence></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
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<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { fail }</span>
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</pre>
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<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
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<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b></p>
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<pre class="Preform-displayed-code all-displayed-code code-font">
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<span class="Preform-function-syntax"><scan-individual-phrase></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
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<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">banana</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-ut.html#SP3_1" class="named-paragraph-link"><span class="named-paragraph">Issue PM_UnexpectedFruit problem</span><span class="named-paragraph-number">3.1</span></a></span><span class="Preform-constant-syntax">;</span>
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</pre>
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<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
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<p class="commentary firstcommentary"><a id="SP3_1" class="paragraph-anchor"></a><b>§3.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Issue PM_UnexpectedFruit problem</span><span class="named-paragraph-number">3.1</span></span><span class="Preform-comment-syntax"> =</span>
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="plain-syntax"> </span><a href="../problems-module/2-pl2.html#SP6" class="function-link"><span class="function-syntax">Problems::quote_wording</span></a><span class="plain-syntax">(1, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="../problems-module/2-pl3.html#SP10" class="function-link"><span class="function-syntax">StandardProblems::handmade_problem</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">syntax_tree</span><span class="plain-syntax">, </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_UnexpectedFruit</span><span class="plain-syntax">));</span>
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<span class="plain-syntax"> </span><a href="../problems-module/2-pl2.html#SP12" class="function-link"><span class="function-syntax">Problems::issue_problem_segment</span></a><span class="plain-syntax">(</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"The sentence '%1' contained an unexpected fruit item, and now supper "</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"will be ruined."</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="../problems-module/2-pl2.html#SP9" class="function-link"><span class="function-syntax">Problems::issue_problem_end</span></a><span class="plain-syntax">();</span>
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</pre>
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<ul class="endnotetexts"><li>This code is used in <a href="1-ut.html#SP3">§3</a>.</li></ul>
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<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>§4. Syntax tree. </b></p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Unit::test_problems</span><button class="popup" onclick="togglePopup('usagePopup1')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup1">Usage of <span class="code-font"><span class="function-syntax">Unit::test_problems</span></span>:<br/>Program Control - <a href="1-pc.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">arg</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">F</span><span class="plain-syntax"> = </span><a href="../../../inweb/docs/foundation-module/3-fln.html#SP3" class="function-link"><span class="function-syntax">Filenames::from_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">arg</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="constant-syntax">feed_t</span><span class="plain-syntax"> </span><span class="identifier-syntax">FD</span><span class="plain-syntax"> = </span><a href="../words-module/3-fds.html#SP2" class="function-link"><span class="function-syntax">Feeds::begin</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">source_file</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sf</span><span class="plain-syntax"> = </span><a href="../words-module/3-tff.html#SP3" class="function-link"><span class="function-syntax">TextFromFiles::feed_into_lexer</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="constant-syntax">NULL_GENERAL_POINTER</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><a href="../words-module/3-fds.html#SP2" class="function-link"><span class="function-syntax">Feeds::end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">FD</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">sf</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) { </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"File has failed to open\n"</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax">; }</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">syntax_tree</span><span class="plain-syntax"> = </span><a href="../syntax-module/2-st.html#SP2" class="function-link"><span class="function-syntax">SyntaxTree::new</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"Read %d words\n"</span><span class="plain-syntax">, </span><a href="../words-module/3-wrd.html#SP7" class="function-link"><span class="function-syntax">Wordings::length</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">));</span>
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<span class="plain-syntax"> </span><a href="../syntax-module/3-snt.html#SP5" class="function-link"><span class="function-syntax">Sentences::break</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">syntax_tree</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="../syntax-module/2-st.html#SP10" class="function-link"><span class="function-syntax">SyntaxTree::traverse</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">syntax_tree</span><span class="plain-syntax">, </span><a href="1-ut.html#SP4" class="function-link"><span class="function-syntax">Unit::scan_tree</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Unit::scan_tree</span><span class="plain-syntax">(</span><span class="reserved-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">p</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../syntax-module/2-pn.html#SP5" class="function-link"><span class="function-syntax">Node::get_type</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">) == </span><span class="constant-syntax">SENTENCE_NT</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><a href="../syntax-module/2-pn.html#SP4" class="function-link"><span class="function-syntax">Node::get_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="function-syntax"><scan-individual-phrase></span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax">}</span>
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