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<h1 class="page-title">Class: FieldTest</h1>
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<h2><span class="attribs"><span class="type-signature"></span></span>
<span class="ancestors"><a href="field_validators.html">field_validators</a>.</span>FieldTest<span class="signature">()</span><span class="type-signature"></span></h2>
<div class="class-description"><p>A set of server side tests which may be used to filter queries
These tests assume that the client has done most of the filter testing.
These are supposed to be short tests that mostly ensure the form data has come from a valid client.</p>
<p>The heighest level class merely sets up the parameter map of the test, and provides the basic test method,
which is overridden here, and should be extensively overridden by applications expecting to use validity tests.</p>
<p>Each extending sublcass will be a test for a particular type of field.</p>
<p>Form fields are tied to FieldTest types of objects by examining the <code>field_type</code> of the field descriptor introducd by
configuration. The <code>FieldValidatorTools</code> keeps a table of field class (<code>field_classes</code>), that map from the configuration string to
the actual class which can be constructed the field type.</p></div>
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<h2>Constructor</h2>
<h4 class="name" id="FieldTest"><span class="type-signature"></span>new FieldTest<span class="signature">()</span><span class="type-signature"></span></h4>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_field-validator-tools.js.html">lib/field-validator-tools.js</a>, <a href="lib_field-validator-tools.js.html#line30">line 30</a>
</li></ul></dd>
</dl>
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<h3 class="subsection-title">Methods</h3>
<h4 class="name" id="test"><span class="type-signature"></span>test<span class="signature">(field_data, test_params)</span><span class="type-signature"> → {boolean}</span></h4>
<div class="description">
<p>Each extending subclass of FieldTest will supply a <code>test</code> method.
The object parameter 'field_data' will supply data from the fields of a Form (HTML form).
The test method will a also take <code>test parameters</code>, which will supply the syntactic and semantic
contraints on the value of the paritcular type of field represented by the class.</p>
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
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<td class="name"><code>field_data</code></td>
<td class="type">
<span class="param-type">object</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>test_params</code></td>
<td class="type">
<span class="param-type">object</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_field-validator-tools.js.html">lib/field-validator-tools.js</a>, <a href="lib_field-validator-tools.js.html#line45">line 45</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<ul>
<li>true if the test passes</li>
</ul>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">boolean</span>
</dd>
</dl>
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