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<pre><span class="sourceLineNo">001</span>package org.junit.runners;<a name="line.1"></a>
<span class="sourceLineNo">002</span><a name="line.2"></a>
<span class="sourceLineNo">003</span>import java.lang.annotation.ElementType;<a name="line.3"></a>
<span class="sourceLineNo">004</span>import java.lang.annotation.Inherited;<a name="line.4"></a>
<span class="sourceLineNo">005</span>import java.lang.annotation.Retention;<a name="line.5"></a>
<span class="sourceLineNo">006</span>import java.lang.annotation.RetentionPolicy;<a name="line.6"></a>
<span class="sourceLineNo">007</span>import java.lang.annotation.Target;<a name="line.7"></a>
<span class="sourceLineNo">008</span>import java.text.MessageFormat;<a name="line.8"></a>
<span class="sourceLineNo">009</span>import java.util.ArrayList;<a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.util.Arrays;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import java.util.Collections;<a name="line.11"></a>
<span class="sourceLineNo">012</span>import java.util.List;<a name="line.12"></a>
<span class="sourceLineNo">013</span><a name="line.13"></a>
<span class="sourceLineNo">014</span>import org.junit.runner.Runner;<a name="line.14"></a>
<span class="sourceLineNo">015</span>import org.junit.runners.model.FrameworkMethod;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import org.junit.runners.model.InitializationError;<a name="line.16"></a>
<span class="sourceLineNo">017</span>import org.junit.runners.model.TestClass;<a name="line.17"></a>
<span class="sourceLineNo">018</span>import org.junit.runners.parameterized.BlockJUnit4ClassRunnerWithParametersFactory;<a name="line.18"></a>
<span class="sourceLineNo">019</span>import org.junit.runners.parameterized.ParametersRunnerFactory;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import org.junit.runners.parameterized.TestWithParameters;<a name="line.20"></a>
<span class="sourceLineNo">021</span><a name="line.21"></a>
<span class="sourceLineNo">022</span>/**<a name="line.22"></a>
<span class="sourceLineNo">023</span> * The custom runner <code>Parameterized</code> implements parameterized tests.<a name="line.23"></a>
<span class="sourceLineNo">024</span> * When running a parameterized test class, instances are created for the<a name="line.24"></a>
<span class="sourceLineNo">025</span> * cross-product of the test methods and the test data elements.<a name="line.25"></a>
<span class="sourceLineNo">026</span> * <p><a name="line.26"></a>
<span class="sourceLineNo">027</span> * For example, to test a Fibonacci function, write:<a name="line.27"></a>
<span class="sourceLineNo">028</span> * <pre><a name="line.28"></a>
<span class="sourceLineNo">029</span> * &#064;RunWith(Parameterized.class)<a name="line.29"></a>
<span class="sourceLineNo">030</span> * public class FibonacciTest {<a name="line.30"></a>
<span class="sourceLineNo">031</span> * &#064;Parameters(name= &quot;{index}: fib[{0}]={1}&quot;)<a name="line.31"></a>
<span class="sourceLineNo">032</span> * public static Iterable&lt;Object[]&gt; data() {<a name="line.32"></a>
<span class="sourceLineNo">033</span> * return Arrays.asList(new Object[][] { { 0, 0 }, { 1, 1 }, { 2, 1 },<a name="line.33"></a>
<span class="sourceLineNo">034</span> * { 3, 2 }, { 4, 3 }, { 5, 5 }, { 6, 8 } });<a name="line.34"></a>
<span class="sourceLineNo">035</span> * }<a name="line.35"></a>
<span class="sourceLineNo">036</span> *<a name="line.36"></a>
<span class="sourceLineNo">037</span> * private int fInput;<a name="line.37"></a>
<span class="sourceLineNo">038</span> *<a name="line.38"></a>
<span class="sourceLineNo">039</span> * private int fExpected;<a name="line.39"></a>
<span class="sourceLineNo">040</span> *<a name="line.40"></a>
<span class="sourceLineNo">041</span> * public FibonacciTest(int input, int expected) {<a name="line.41"></a>
<span class="sourceLineNo">042</span> * fInput= input;<a name="line.42"></a>
<span class="sourceLineNo">043</span> * fExpected= expected;<a name="line.43"></a>
<span class="sourceLineNo">044</span> * }<a name="line.44"></a>
<span class="sourceLineNo">045</span> *<a name="line.45"></a>
<span class="sourceLineNo">046</span> * &#064;Test<a name="line.46"></a>
<span class="sourceLineNo">047</span> * public void test() {<a name="line.47"></a>
<span class="sourceLineNo">048</span> * assertEquals(fExpected, Fibonacci.compute(fInput));<a name="line.48"></a>
<span class="sourceLineNo">049</span> * }<a name="line.49"></a>
<span class="sourceLineNo">050</span> * }<a name="line.50"></a>
<span class="sourceLineNo">051</span> * </pre><a name="line.51"></a>
<span class="sourceLineNo">052</span> * <p><a name="line.52"></a>
<span class="sourceLineNo">053</span> * Each instance of <code>FibonacciTest</code> will be constructed using the<a name="line.53"></a>
<span class="sourceLineNo">054</span> * two-argument constructor and the data values in the<a name="line.54"></a>
<span class="sourceLineNo">055</span> * <code>&#064;Parameters</code> method.<a name="line.55"></a>
<span class="sourceLineNo">056</span> * <p><a name="line.56"></a>
<span class="sourceLineNo">057</span> * In order that you can easily identify the individual tests, you may provide a<a name="line.57"></a>
<span class="sourceLineNo">058</span> * name for the <code>&#064;Parameters</code> annotation. This name is allowed<a name="line.58"></a>
<span class="sourceLineNo">059</span> * to contain placeholders, which are replaced at runtime. The placeholders are<a name="line.59"></a>
<span class="sourceLineNo">060</span> * <dl><a name="line.60"></a>
<span class="sourceLineNo">061</span> * <dt>{index}</dt><a name="line.61"></a>
<span class="sourceLineNo">062</span> * <dd>the current parameter index</dd><a name="line.62"></a>
<span class="sourceLineNo">063</span> * <dt>{0}</dt><a name="line.63"></a>
<span class="sourceLineNo">064</span> * <dd>the first parameter value</dd><a name="line.64"></a>
<span class="sourceLineNo">065</span> * <dt>{1}</dt><a name="line.65"></a>
<span class="sourceLineNo">066</span> * <dd>the second parameter value</dd><a name="line.66"></a>
<span class="sourceLineNo">067</span> * <dt>...</dt><a name="line.67"></a>
<span class="sourceLineNo">068</span> * <dd>...</dd><a name="line.68"></a>
<span class="sourceLineNo">069</span> * </dl><a name="line.69"></a>
<span class="sourceLineNo">070</span> * <p><a name="line.70"></a>
<span class="sourceLineNo">071</span> * In the example given above, the <code>Parameterized</code> runner creates<a name="line.71"></a>
<span class="sourceLineNo">072</span> * names like <code>[1: fib(3)=2]</code>. If you don't use the name parameter,<a name="line.72"></a>
<span class="sourceLineNo">073</span> * then the current parameter index is used as name.<a name="line.73"></a>
<span class="sourceLineNo">074</span> * <p><a name="line.74"></a>
<span class="sourceLineNo">075</span> * You can also write:<a name="line.75"></a>
<span class="sourceLineNo">076</span> * <pre><a name="line.76"></a>
<span class="sourceLineNo">077</span> * &#064;RunWith(Parameterized.class)<a name="line.77"></a>
<span class="sourceLineNo">078</span> * public class FibonacciTest {<a name="line.78"></a>
<span class="sourceLineNo">079</span> * &#064;Parameters<a name="line.79"></a>
<span class="sourceLineNo">080</span> * public static Iterable&lt;Object[]&gt; data() {<a name="line.80"></a>
<span class="sourceLineNo">081</span> * return Arrays.asList(new Object[][] { { 0, 0 }, { 1, 1 }, { 2, 1 },<a name="line.81"></a>
<span class="sourceLineNo">082</span> * { 3, 2 }, { 4, 3 }, { 5, 5 }, { 6, 8 } });<a name="line.82"></a>
<span class="sourceLineNo">083</span> * }<a name="line.83"></a>
<span class="sourceLineNo">084</span> * <a name="line.84"></a>
<span class="sourceLineNo">085</span> * &#064;Parameter(0)<a name="line.85"></a>
<span class="sourceLineNo">086</span> * public int fInput;<a name="line.86"></a>
<span class="sourceLineNo">087</span> *<a name="line.87"></a>
<span class="sourceLineNo">088</span> * &#064;Parameter(1)<a name="line.88"></a>
<span class="sourceLineNo">089</span> * public int fExpected;<a name="line.89"></a>
<span class="sourceLineNo">090</span> *<a name="line.90"></a>
<span class="sourceLineNo">091</span> * &#064;Test<a name="line.91"></a>
<span class="sourceLineNo">092</span> * public void test() {<a name="line.92"></a>
<span class="sourceLineNo">093</span> * assertEquals(fExpected, Fibonacci.compute(fInput));<a name="line.93"></a>
<span class="sourceLineNo">094</span> * }<a name="line.94"></a>
<span class="sourceLineNo">095</span> * }<a name="line.95"></a>
<span class="sourceLineNo">096</span> * </pre><a name="line.96"></a>
<span class="sourceLineNo">097</span> * <p><a name="line.97"></a>
<span class="sourceLineNo">098</span> * Each instance of <code>FibonacciTest</code> will be constructed with the default constructor<a name="line.98"></a>
<span class="sourceLineNo">099</span> * and fields annotated by <code>&#064;Parameter</code> will be initialized<a name="line.99"></a>
<span class="sourceLineNo">100</span> * with the data values in the <code>&#064;Parameters</code> method.<a name="line.100"></a>
<span class="sourceLineNo">101</span> *<a name="line.101"></a>
<span class="sourceLineNo">102</span> * <p><a name="line.102"></a>
<span class="sourceLineNo">103</span> * The parameters can be provided as an array, too:<a name="line.103"></a>
<span class="sourceLineNo">104</span> * <a name="line.104"></a>
<span class="sourceLineNo">105</span> * <pre><a name="line.105"></a>
<span class="sourceLineNo">106</span> * &#064;Parameters<a name="line.106"></a>
<span class="sourceLineNo">107</span> * public static Object[][] data() {<a name="line.107"></a>
<span class="sourceLineNo">108</span> * return new Object[][] { { 0, 0 }, { 1, 1 }, { 2, 1 }, { 3, 2 }, { 4, 3 },<a name="line.108"></a>
<span class="sourceLineNo">109</span> * { 5, 5 }, { 6, 8 } };<a name="line.109"></a>
<span class="sourceLineNo">110</span> * }<a name="line.110"></a>
<span class="sourceLineNo">111</span> * </pre><a name="line.111"></a>
<span class="sourceLineNo">112</span> * <a name="line.112"></a>
<span class="sourceLineNo">113</span> * <h3>Tests with single parameter</h3><a name="line.113"></a>
<span class="sourceLineNo">114</span> * <p><a name="line.114"></a>
<span class="sourceLineNo">115</span> * If your test needs a single parameter only, you don't have to wrap it with an<a name="line.115"></a>
<span class="sourceLineNo">116</span> * array. Instead you can provide an <code>Iterable</code> or an array of<a name="line.116"></a>
<span class="sourceLineNo">117</span> * objects.<a name="line.117"></a>
<span class="sourceLineNo">118</span> * <pre><a name="line.118"></a>
<span class="sourceLineNo">119</span> * &#064;Parameters<a name="line.119"></a>
<span class="sourceLineNo">120</span> * public static Iterable&lt;? extends Object&gt; data() {<a name="line.120"></a>
<span class="sourceLineNo">121</span> * return Arrays.asList(&quot;first test&quot;, &quot;second test&quot;);<a name="line.121"></a>
<span class="sourceLineNo">122</span> * }<a name="line.122"></a>
<span class="sourceLineNo">123</span> * </pre><a name="line.123"></a>
<span class="sourceLineNo">124</span> * <p><a name="line.124"></a>
<span class="sourceLineNo">125</span> * or<a name="line.125"></a>
<span class="sourceLineNo">126</span> * <pre><a name="line.126"></a>
<span class="sourceLineNo">127</span> * &#064;Parameters<a name="line.127"></a>
<span class="sourceLineNo">128</span> * public static Object[] data() {<a name="line.128"></a>
<span class="sourceLineNo">129</span> * return new Object[] { &quot;first test&quot;, &quot;second test&quot; };<a name="line.129"></a>
<span class="sourceLineNo">130</span> * }<a name="line.130"></a>
<span class="sourceLineNo">131</span> * </pre><a name="line.131"></a>
<span class="sourceLineNo">132</span> *<a name="line.132"></a>
<span class="sourceLineNo">133</span> * <h3>Create different runners</h3><a name="line.133"></a>
<span class="sourceLineNo">134</span> * <p><a name="line.134"></a>
<span class="sourceLineNo">135</span> * By default the {@code Parameterized} runner creates a slightly modified<a name="line.135"></a>
<span class="sourceLineNo">136</span> * {@link BlockJUnit4ClassRunner} for each set of parameters. You can build an<a name="line.136"></a>
<span class="sourceLineNo">137</span> * own {@code Parameterized} runner that creates another runner for each set of<a name="line.137"></a>
<span class="sourceLineNo">138</span> * parameters. Therefore you have to build a {@link ParametersRunnerFactory}<a name="line.138"></a>
<span class="sourceLineNo">139</span> * that creates a runner for each {@link TestWithParameters}. (<a name="line.139"></a>
<span class="sourceLineNo">140</span> * {@code TestWithParameters} are bundling the parameters and the test name.)<a name="line.140"></a>
<span class="sourceLineNo">141</span> * The factory must have a public zero-arg constructor.<a name="line.141"></a>
<span class="sourceLineNo">142</span> *<a name="line.142"></a>
<span class="sourceLineNo">143</span> * <pre><a name="line.143"></a>
<span class="sourceLineNo">144</span> * public class YourRunnerFactory implements ParameterizedRunnerFactory {<a name="line.144"></a>
<span class="sourceLineNo">145</span> * public Runner createRunnerForTestWithParameters(TestWithParameters test)<a name="line.145"></a>
<span class="sourceLineNo">146</span> * throws InitializationError {<a name="line.146"></a>
<span class="sourceLineNo">147</span> * return YourRunner(test);<a name="line.147"></a>
<span class="sourceLineNo">148</span> * }<a name="line.148"></a>
<span class="sourceLineNo">149</span> * }<a name="line.149"></a>
<span class="sourceLineNo">150</span> * </pre><a name="line.150"></a>
<span class="sourceLineNo">151</span> * <p><a name="line.151"></a>
<span class="sourceLineNo">152</span> * Use the {@link UseParametersRunnerFactory} to tell the {@code Parameterized}<a name="line.152"></a>
<span class="sourceLineNo">153</span> * runner that it should use your factory.<a name="line.153"></a>
<span class="sourceLineNo">154</span> *<a name="line.154"></a>
<span class="sourceLineNo">155</span> * <pre><a name="line.155"></a>
<span class="sourceLineNo">156</span> * &#064;RunWith(Parameterized.class)<a name="line.156"></a>
<span class="sourceLineNo">157</span> * &#064;UseParametersRunnerFactory(YourRunnerFactory.class)<a name="line.157"></a>
<span class="sourceLineNo">158</span> * public class YourTest {<a name="line.158"></a>
<span class="sourceLineNo">159</span> * ...<a name="line.159"></a>
<span class="sourceLineNo">160</span> * }<a name="line.160"></a>
<span class="sourceLineNo">161</span> * </pre><a name="line.161"></a>
<span class="sourceLineNo">162</span> *<a name="line.162"></a>
<span class="sourceLineNo">163</span> * @since 4.0<a name="line.163"></a>
<span class="sourceLineNo">164</span> */<a name="line.164"></a>
<span class="sourceLineNo">165</span>public class Parameterized extends Suite {<a name="line.165"></a>
<span class="sourceLineNo">166</span> /**<a name="line.166"></a>
<span class="sourceLineNo">167</span> * Annotation for a method which provides parameters to be injected into the<a name="line.167"></a>
<span class="sourceLineNo">168</span> * test class constructor by <code>Parameterized</code>. The method has to<a name="line.168"></a>
<span class="sourceLineNo">169</span> * be public and static.<a name="line.169"></a>
<span class="sourceLineNo">170</span> */<a name="line.170"></a>
<span class="sourceLineNo">171</span> @Retention(RetentionPolicy.RUNTIME)<a name="line.171"></a>
<span class="sourceLineNo">172</span> @Target(ElementType.METHOD)<a name="line.172"></a>
<span class="sourceLineNo">173</span> public static @interface Parameters {<a name="line.173"></a>
<span class="sourceLineNo">174</span> /**<a name="line.174"></a>
<span class="sourceLineNo">175</span> * Optional pattern to derive the test's name from the parameters. Use<a name="line.175"></a>
<span class="sourceLineNo">176</span> * numbers in braces to refer to the parameters or the additional data<a name="line.176"></a>
<span class="sourceLineNo">177</span> * as follows:<a name="line.177"></a>
<span class="sourceLineNo">178</span> * <pre><a name="line.178"></a>
<span class="sourceLineNo">179</span> * {index} - the current parameter index<a name="line.179"></a>
<span class="sourceLineNo">180</span> * {0} - the first parameter value<a name="line.180"></a>
<span class="sourceLineNo">181</span> * {1} - the second parameter value<a name="line.181"></a>
<span class="sourceLineNo">182</span> * etc...<a name="line.182"></a>
<span class="sourceLineNo">183</span> * </pre><a name="line.183"></a>
<span class="sourceLineNo">184</span> * <p><a name="line.184"></a>
<span class="sourceLineNo">185</span> * Default value is "{index}" for compatibility with previous JUnit<a name="line.185"></a>
<span class="sourceLineNo">186</span> * versions.<a name="line.186"></a>
<span class="sourceLineNo">187</span> *<a name="line.187"></a>
<span class="sourceLineNo">188</span> * @return {@link MessageFormat} pattern string, except the index<a name="line.188"></a>
<span class="sourceLineNo">189</span> * placeholder.<a name="line.189"></a>
<span class="sourceLineNo">190</span> * @see MessageFormat<a name="line.190"></a>
<span class="sourceLineNo">191</span> */<a name="line.191"></a>
<span class="sourceLineNo">192</span> String name() default "{index}";<a name="line.192"></a>
<span class="sourceLineNo">193</span> }<a name="line.193"></a>
<span class="sourceLineNo">194</span><a name="line.194"></a>
<span class="sourceLineNo">195</span> /**<a name="line.195"></a>
<span class="sourceLineNo">196</span> * Annotation for fields of the test class which will be initialized by the<a name="line.196"></a>
<span class="sourceLineNo">197</span> * method annotated by <code>Parameters</code>.<a name="line.197"></a>
<span class="sourceLineNo">198</span> * By using directly this annotation, the test class constructor isn't needed.<a name="line.198"></a>
<span class="sourceLineNo">199</span> * Index range must start at 0.<a name="line.199"></a>
<span class="sourceLineNo">200</span> * Default value is 0.<a name="line.200"></a>
<span class="sourceLineNo">201</span> */<a name="line.201"></a>
<span class="sourceLineNo">202</span> @Retention(RetentionPolicy.RUNTIME)<a name="line.202"></a>
<span class="sourceLineNo">203</span> @Target(ElementType.FIELD)<a name="line.203"></a>
<span class="sourceLineNo">204</span> public static @interface Parameter {<a name="line.204"></a>
<span class="sourceLineNo">205</span> /**<a name="line.205"></a>
<span class="sourceLineNo">206</span> * Method that returns the index of the parameter in the array<a name="line.206"></a>
<span class="sourceLineNo">207</span> * returned by the method annotated by <code>Parameters</code>.<a name="line.207"></a>
<span class="sourceLineNo">208</span> * Index range must start at 0.<a name="line.208"></a>
<span class="sourceLineNo">209</span> * Default value is 0.<a name="line.209"></a>
<span class="sourceLineNo">210</span> *<a name="line.210"></a>
<span class="sourceLineNo">211</span> * @return the index of the parameter.<a name="line.211"></a>
<span class="sourceLineNo">212</span> */<a name="line.212"></a>
<span class="sourceLineNo">213</span> int value() default 0;<a name="line.213"></a>
<span class="sourceLineNo">214</span> }<a name="line.214"></a>
<span class="sourceLineNo">215</span><a name="line.215"></a>
<span class="sourceLineNo">216</span> /**<a name="line.216"></a>
<span class="sourceLineNo">217</span> * Add this annotation to your test class if you want to generate a special<a name="line.217"></a>
<span class="sourceLineNo">218</span> * runner. You have to specify a {@link ParametersRunnerFactory} class that<a name="line.218"></a>
<span class="sourceLineNo">219</span> * creates such runners. The factory must have a public zero-arg<a name="line.219"></a>
<span class="sourceLineNo">220</span> * constructor.<a name="line.220"></a>
<span class="sourceLineNo">221</span> */<a name="line.221"></a>
<span class="sourceLineNo">222</span> @Retention(RetentionPolicy.RUNTIME)<a name="line.222"></a>
<span class="sourceLineNo">223</span> @Inherited<a name="line.223"></a>
<span class="sourceLineNo">224</span> @Target(ElementType.TYPE)<a name="line.224"></a>
<span class="sourceLineNo">225</span> public @interface UseParametersRunnerFactory {<a name="line.225"></a>
<span class="sourceLineNo">226</span> /**<a name="line.226"></a>
<span class="sourceLineNo">227</span> * @return a {@link ParametersRunnerFactory} class (must have a default<a name="line.227"></a>
<span class="sourceLineNo">228</span> * constructor)<a name="line.228"></a>
<span class="sourceLineNo">229</span> */<a name="line.229"></a>
<span class="sourceLineNo">230</span> Class<? extends ParametersRunnerFactory> value() default BlockJUnit4ClassRunnerWithParametersFactory.class;<a name="line.230"></a>
<span class="sourceLineNo">231</span> }<a name="line.231"></a>
<span class="sourceLineNo">232</span><a name="line.232"></a>
<span class="sourceLineNo">233</span> private static final ParametersRunnerFactory DEFAULT_FACTORY = new BlockJUnit4ClassRunnerWithParametersFactory();<a name="line.233"></a>
<span class="sourceLineNo">234</span><a name="line.234"></a>
<span class="sourceLineNo">235</span> private static final List<Runner> NO_RUNNERS = Collections.<Runner>emptyList();<a name="line.235"></a>
<span class="sourceLineNo">236</span><a name="line.236"></a>
<span class="sourceLineNo">237</span> private final List<Runner> runners;<a name="line.237"></a>
<span class="sourceLineNo">238</span><a name="line.238"></a>
<span class="sourceLineNo">239</span> /**<a name="line.239"></a>
<span class="sourceLineNo">240</span> * Only called reflectively. Do not use programmatically.<a name="line.240"></a>
<span class="sourceLineNo">241</span> */<a name="line.241"></a>
<span class="sourceLineNo">242</span> public Parameterized(Class<?> klass) throws Throwable {<a name="line.242"></a>
<span class="sourceLineNo">243</span> super(klass, NO_RUNNERS);<a name="line.243"></a>
<span class="sourceLineNo">244</span> ParametersRunnerFactory runnerFactory = getParametersRunnerFactory(<a name="line.244"></a>
<span class="sourceLineNo">245</span> klass);<a name="line.245"></a>
<span class="sourceLineNo">246</span> Parameters parameters = getParametersMethod().getAnnotation(<a name="line.246"></a>
<span class="sourceLineNo">247</span> Parameters.class);<a name="line.247"></a>
<span class="sourceLineNo">248</span> runners = Collections.unmodifiableList(createRunnersForParameters(<a name="line.248"></a>
<span class="sourceLineNo">249</span> allParameters(), parameters.name(), runnerFactory));<a name="line.249"></a>
<span class="sourceLineNo">250</span> }<a name="line.250"></a>
<span class="sourceLineNo">251</span><a name="line.251"></a>
<span class="sourceLineNo">252</span> private ParametersRunnerFactory getParametersRunnerFactory(Class<?> klass)<a name="line.252"></a>
<span class="sourceLineNo">253</span> throws InstantiationException, IllegalAccessException {<a name="line.253"></a>
<span class="sourceLineNo">254</span> UseParametersRunnerFactory annotation = klass<a name="line.254"></a>
<span class="sourceLineNo">255</span> .getAnnotation(UseParametersRunnerFactory.class);<a name="line.255"></a>
<span class="sourceLineNo">256</span> if (annotation == null) {<a name="line.256"></a>
<span class="sourceLineNo">257</span> return DEFAULT_FACTORY;<a name="line.257"></a>
<span class="sourceLineNo">258</span> } else {<a name="line.258"></a>
<span class="sourceLineNo">259</span> Class<? extends ParametersRunnerFactory> factoryClass = annotation<a name="line.259"></a>
<span class="sourceLineNo">260</span> .value();<a name="line.260"></a>
<span class="sourceLineNo">261</span> return factoryClass.newInstance();<a name="line.261"></a>
<span class="sourceLineNo">262</span> }<a name="line.262"></a>
<span class="sourceLineNo">263</span> }<a name="line.263"></a>
<span class="sourceLineNo">264</span><a name="line.264"></a>
<span class="sourceLineNo">265</span> @Override<a name="line.265"></a>
<span class="sourceLineNo">266</span> protected List<Runner> getChildren() {<a name="line.266"></a>
<span class="sourceLineNo">267</span> return runners;<a name="line.267"></a>
<span class="sourceLineNo">268</span> }<a name="line.268"></a>
<span class="sourceLineNo">269</span><a name="line.269"></a>
<span class="sourceLineNo">270</span> private TestWithParameters createTestWithNotNormalizedParameters(<a name="line.270"></a>
<span class="sourceLineNo">271</span> String pattern, int index, Object parametersOrSingleParameter) {<a name="line.271"></a>
<span class="sourceLineNo">272</span> Object[] parameters= (parametersOrSingleParameter instanceof Object[]) ? (Object[]) parametersOrSingleParameter<a name="line.272"></a>
<span class="sourceLineNo">273</span> : new Object[] { parametersOrSingleParameter };<a name="line.273"></a>
<span class="sourceLineNo">274</span> return createTestWithParameters(getTestClass(), pattern, index,<a name="line.274"></a>
<span class="sourceLineNo">275</span> parameters);<a name="line.275"></a>
<span class="sourceLineNo">276</span> }<a name="line.276"></a>
<span class="sourceLineNo">277</span><a name="line.277"></a>
<span class="sourceLineNo">278</span> @SuppressWarnings("unchecked")<a name="line.278"></a>
<span class="sourceLineNo">279</span> private Iterable<Object> allParameters() throws Throwable {<a name="line.279"></a>
<span class="sourceLineNo">280</span> Object parameters = getParametersMethod().invokeExplosively(null);<a name="line.280"></a>
<span class="sourceLineNo">281</span> if (parameters instanceof Iterable) {<a name="line.281"></a>
<span class="sourceLineNo">282</span> return (Iterable<Object>) parameters;<a name="line.282"></a>
<span class="sourceLineNo">283</span> } else if (parameters instanceof Object[]) {<a name="line.283"></a>
<span class="sourceLineNo">284</span> return Arrays.asList((Object[]) parameters);<a name="line.284"></a>
<span class="sourceLineNo">285</span> } else {<a name="line.285"></a>
<span class="sourceLineNo">286</span> throw parametersMethodReturnedWrongType();<a name="line.286"></a>
<span class="sourceLineNo">287</span> }<a name="line.287"></a>
<span class="sourceLineNo">288</span> }<a name="line.288"></a>
<span class="sourceLineNo">289</span><a name="line.289"></a>
<span class="sourceLineNo">290</span> private FrameworkMethod getParametersMethod() throws Exception {<a name="line.290"></a>
<span class="sourceLineNo">291</span> List<FrameworkMethod> methods = getTestClass().getAnnotatedMethods(<a name="line.291"></a>
<span class="sourceLineNo">292</span> Parameters.class);<a name="line.292"></a>
<span class="sourceLineNo">293</span> for (FrameworkMethod each : methods) {<a name="line.293"></a>
<span class="sourceLineNo">294</span> if (each.isStatic() && each.isPublic()) {<a name="line.294"></a>
<span class="sourceLineNo">295</span> return each;<a name="line.295"></a>
<span class="sourceLineNo">296</span> }<a name="line.296"></a>
<span class="sourceLineNo">297</span> }<a name="line.297"></a>
<span class="sourceLineNo">298</span><a name="line.298"></a>
<span class="sourceLineNo">299</span> throw new Exception("No public static parameters method on class "<a name="line.299"></a>
<span class="sourceLineNo">300</span> + getTestClass().getName());<a name="line.300"></a>
<span class="sourceLineNo">301</span> }<a name="line.301"></a>
<span class="sourceLineNo">302</span><a name="line.302"></a>
<span class="sourceLineNo">303</span> private List<Runner> createRunnersForParameters(<a name="line.303"></a>
<span class="sourceLineNo">304</span> Iterable<Object> allParameters, String namePattern,<a name="line.304"></a>
<span class="sourceLineNo">305</span> ParametersRunnerFactory runnerFactory)<a name="line.305"></a>
<span class="sourceLineNo">306</span> throws InitializationError,<a name="line.306"></a>
<span class="sourceLineNo">307</span> Exception {<a name="line.307"></a>
<span class="sourceLineNo">308</span> try {<a name="line.308"></a>
<span class="sourceLineNo">309</span> List<TestWithParameters> tests = createTestsForParameters(<a name="line.309"></a>
<span class="sourceLineNo">310</span> allParameters, namePattern);<a name="line.310"></a>
<span class="sourceLineNo">311</span> List<Runner> runners = new ArrayList<Runner>();<a name="line.311"></a>
<span class="sourceLineNo">312</span> for (TestWithParameters test : tests) {<a name="line.312"></a>
<span class="sourceLineNo">313</span> runners.add(runnerFactory<a name="line.313"></a>
<span class="sourceLineNo">314</span> .createRunnerForTestWithParameters(test));<a name="line.314"></a>
<span class="sourceLineNo">315</span> }<a name="line.315"></a>
<span class="sourceLineNo">316</span> return runners;<a name="line.316"></a>
<span class="sourceLineNo">317</span> } catch (ClassCastException e) {<a name="line.317"></a>
<span class="sourceLineNo">318</span> throw parametersMethodReturnedWrongType();<a name="line.318"></a>
<span class="sourceLineNo">319</span> }<a name="line.319"></a>
<span class="sourceLineNo">320</span> }<a name="line.320"></a>
<span class="sourceLineNo">321</span><a name="line.321"></a>
<span class="sourceLineNo">322</span> private List<TestWithParameters> createTestsForParameters(<a name="line.322"></a>
<span class="sourceLineNo">323</span> Iterable<Object> allParameters, String namePattern)<a name="line.323"></a>
<span class="sourceLineNo">324</span> throws Exception {<a name="line.324"></a>
<span class="sourceLineNo">325</span> int i = 0;<a name="line.325"></a>
<span class="sourceLineNo">326</span> List<TestWithParameters> children = new ArrayList<TestWithParameters>();<a name="line.326"></a>
<span class="sourceLineNo">327</span> for (Object parametersOfSingleTest : allParameters) {<a name="line.327"></a>
<span class="sourceLineNo">328</span> children.add(createTestWithNotNormalizedParameters(namePattern,<a name="line.328"></a>
<span class="sourceLineNo">329</span> i++, parametersOfSingleTest));<a name="line.329"></a>
<span class="sourceLineNo">330</span> }<a name="line.330"></a>
<span class="sourceLineNo">331</span> return children;<a name="line.331"></a>
<span class="sourceLineNo">332</span> }<a name="line.332"></a>
<span class="sourceLineNo">333</span><a name="line.333"></a>
<span class="sourceLineNo">334</span> private Exception parametersMethodReturnedWrongType() throws Exception {<a name="line.334"></a>
<span class="sourceLineNo">335</span> String className = getTestClass().getName();<a name="line.335"></a>
<span class="sourceLineNo">336</span> String methodName = getParametersMethod().getName();<a name="line.336"></a>
<span class="sourceLineNo">337</span> String message = MessageFormat.format(<a name="line.337"></a>
<span class="sourceLineNo">338</span> "{0}.{1}() must return an Iterable of arrays.",<a name="line.338"></a>
<span class="sourceLineNo">339</span> className, methodName);<a name="line.339"></a>
<span class="sourceLineNo">340</span> return new Exception(message);<a name="line.340"></a>
<span class="sourceLineNo">341</span> }<a name="line.341"></a>
<span class="sourceLineNo">342</span><a name="line.342"></a>
<span class="sourceLineNo">343</span> private static TestWithParameters createTestWithParameters(<a name="line.343"></a>
<span class="sourceLineNo">344</span> TestClass testClass, String pattern, int index, Object[] parameters) {<a name="line.344"></a>
<span class="sourceLineNo">345</span> String finalPattern = pattern.replaceAll("\\{index\\}",<a name="line.345"></a>
<span class="sourceLineNo">346</span> Integer.toString(index));<a name="line.346"></a>
<span class="sourceLineNo">347</span> String name = MessageFormat.format(finalPattern, parameters);<a name="line.347"></a>
<span class="sourceLineNo">348</span> return new TestWithParameters("[" + name + "]", testClass,<a name="line.348"></a>
<span class="sourceLineNo">349</span> Arrays.asList(parameters));<a name="line.349"></a>
<span class="sourceLineNo">350</span> }<a name="line.350"></a>
<span class="sourceLineNo">351</span>}<a name="line.351"></a>
</pre>
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