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POIs there a neater way of testing calls to mocked methods for each item in a list
 

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    <p>This is an example of a pattern I've encountered a lot recently. I have a method to be tested that takes a List and may invoke some other method(s) for each item in the list. To test this I define an Iterator with the expected call parameters and a loop in the JMock expectations to check the call is made against each item of the iterator (see trivial example below).</p> <p>I've had a look at the Hamcrest matchers but haven't found something that tests for this (or have misunderstood how the available matchers work). Does anyone have a more elegant approach?</p> <pre><code>package com.hsbc.maven.versionupdater; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.apache.maven.plugin.testing.AbstractMojoTestCase; import org.jmock.Expectations; import org.jmock.Mockery; import org.jmock.Sequence; import org.jmock.internal.NamedSequence; public class FooTest extends AbstractMojoTestCase { public interface Bar { void doIt(String arg); } public class Foo { private Bar bar; public void executeEven(final List&lt;String&gt; allParameters) { for (int i = 0; i &lt; allParameters.size(); i++) { if (i % 2 == 0) { bar.doIt(allParameters.get(i)); } } } public Bar getBar() { return bar; } public void setBar(final Bar bar) { this.bar = bar; } } public void testExecuteEven() { Mockery mockery = new Mockery(); final Bar bar = mockery.mock(Bar.class); final Sequence sequence = new NamedSequence("sequence"); final List&lt;String&gt; allParameters = new ArrayList&lt;String&gt;(); final List&lt;String&gt; expectedParameters = new ArrayList&lt;String&gt;(); for (int i = 0; i &lt; 3; i++) { allParameters.add("param" + i); if (i % 2 == 0) { expectedParameters.add("param" + i); } } final Iterator&lt;String&gt; iter = expectedParameters.iterator(); mockery.checking(new Expectations() { { while (iter.hasNext()) { one(bar).doIt(iter.next()); inSequence(sequence); } } }); Foo subject = new Foo(); subject.setBar(bar); subject.executeEven(allParameters); mockery.assertIsSatisfied(); } } </code></pre>
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