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<pre><span class="sourceLineNo">001</span>package org.junit.experimental.theories;<a name="line.1"></a>
<span class="sourceLineNo">002</span><a name="line.2"></a>
<span class="sourceLineNo">003</span>import static java.lang.annotation.ElementType.FIELD;<a name="line.3"></a>
<span class="sourceLineNo">004</span>import static java.lang.annotation.ElementType.METHOD;<a name="line.4"></a>
<span class="sourceLineNo">005</span><a name="line.5"></a>
<span class="sourceLineNo">006</span>import java.lang.annotation.Retention;<a name="line.6"></a>
<span class="sourceLineNo">007</span>import java.lang.annotation.RetentionPolicy;<a name="line.7"></a>
<span class="sourceLineNo">008</span>import java.lang.annotation.Target;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>/**<a name="line.10"></a>
<span class="sourceLineNo">011</span> * Annotating an field or method with &#064;DataPoint will cause the field value<a name="line.11"></a>
<span class="sourceLineNo">012</span> * or the value returned by the method to be used as a potential parameter for<a name="line.12"></a>
<span class="sourceLineNo">013</span> * theories in that class, when run with the<a name="line.13"></a>
<span class="sourceLineNo">014</span> * {@link org.junit.experimental.theories.Theories Theories} runner.<a name="line.14"></a>
<span class="sourceLineNo">015</span> * <p><a name="line.15"></a>
<span class="sourceLineNo">016</span> * A DataPoint is only considered as a potential value for parameters for<a name="line.16"></a>
<span class="sourceLineNo">017</span> * which its type is assignable. When multiple {@code DataPoint}s exist <a name="line.17"></a>
<span class="sourceLineNo">018</span> * with overlapping types more control can be obtained by naming each DataPoint <a name="line.18"></a>
<span class="sourceLineNo">019</span> * using the value of this annotation, e.g. with<a name="line.19"></a>
<span class="sourceLineNo">020</span> * <code>&#064;DataPoint({"dataset1", "dataset2"})</code>, and then specifying<a name="line.20"></a>
<span class="sourceLineNo">021</span> * which named set to consider as potential values for each parameter using the<a name="line.21"></a>
<span class="sourceLineNo">022</span> * {@link org.junit.experimental.theories.FromDataPoints &#064;FromDataPoints}<a name="line.22"></a>
<span class="sourceLineNo">023</span> * annotation.<a name="line.23"></a>
<span class="sourceLineNo">024</span> * <p><a name="line.24"></a>
<span class="sourceLineNo">025</span> * Parameters with no specified source (i.e. without &#064;FromDataPoints or<a name="line.25"></a>
<span class="sourceLineNo">026</span> * other {@link org.junit.experimental.theories.ParametersSuppliedBy<a name="line.26"></a>
<span class="sourceLineNo">027</span> * &#064;ParameterSuppliedBy} annotations) will use all {@code DataPoint}s that are<a name="line.27"></a>
<span class="sourceLineNo">028</span> * assignable to the parameter type as potential values, including named sets of<a name="line.28"></a>
<span class="sourceLineNo">029</span> * {@code DataPoint}s.<a name="line.29"></a>
<span class="sourceLineNo">030</span> * <a name="line.30"></a>
<span class="sourceLineNo">031</span> * <pre><a name="line.31"></a>
<span class="sourceLineNo">032</span> * &#064;DataPoint<a name="line.32"></a>
<span class="sourceLineNo">033</span> * public static String dataPoint = "value";<a name="line.33"></a>
<span class="sourceLineNo">034</span> * <a name="line.34"></a>
<span class="sourceLineNo">035</span> * &#064;DataPoint("generated")<a name="line.35"></a>
<span class="sourceLineNo">036</span> * public static String generatedDataPoint() {<a name="line.36"></a>
<span class="sourceLineNo">037</span> * return "generated value";<a name="line.37"></a>
<span class="sourceLineNo">038</span> * }<a name="line.38"></a>
<span class="sourceLineNo">039</span> * <a name="line.39"></a>
<span class="sourceLineNo">040</span> * &#064;Theory<a name="line.40"></a>
<span class="sourceLineNo">041</span> * public void theoryMethod(String param) {<a name="line.41"></a>
<span class="sourceLineNo">042</span> * ...<a name="line.42"></a>
<span class="sourceLineNo">043</span> * }<a name="line.43"></a>
<span class="sourceLineNo">044</span> * </pre><a name="line.44"></a>
<span class="sourceLineNo">045</span> * <a name="line.45"></a>
<span class="sourceLineNo">046</span> * @see org.junit.experimental.theories.Theories<a name="line.46"></a>
<span class="sourceLineNo">047</span> * @see org.junit.experimental.theories.Theory<a name="line.47"></a>
<span class="sourceLineNo">048</span> * @see org.junit.experimental.theories.DataPoint<a name="line.48"></a>
<span class="sourceLineNo">049</span> * @see org.junit.experimental.theories.FromDataPoints<a name="line.49"></a>
<span class="sourceLineNo">050</span> */<a name="line.50"></a>
<span class="sourceLineNo">051</span>@Retention(RetentionPolicy.RUNTIME)<a name="line.51"></a>
<span class="sourceLineNo">052</span>@Target({FIELD, METHOD})<a name="line.52"></a>
<span class="sourceLineNo">053</span>public @interface DataPoint {<a name="line.53"></a>
<span class="sourceLineNo">054</span> String[] value() default {};<a name="line.54"></a>
<span class="sourceLineNo">055</span> Class<? extends Throwable>[] ignoredExceptions() default {};<a name="line.55"></a>
<span class="sourceLineNo">056</span>}<a name="line.56"></a>
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