package org.junit.tests.experimental.theories;
   
   import static org.hamcrest.CoreMatchers.is;
   import static org.junit.Assert.assertThat;
   
   import java.lang.reflect.Method;
   import java.util.List;
   
   import org.junit.Test;
  import org.junit.experimental.theories.ParameterSignature;
  import org.junit.experimental.theories.PotentialAssignment;
  import org.junit.experimental.theories.suppliers.TestedOn;
  import org.junit.experimental.theories.suppliers.TestedOnSupplier;
  
  public class TestedOnSupplierTest {
  
      public void foo(@TestedOn(ints = {1}) int x) {
      }
  
      @Test
      public void descriptionStatesParameterName() throws Exception {
          TestedOnSupplier supplier = new TestedOnSupplier();
          List<PotentialAssignment> assignments = supplier.getValueSources(signatureOfFoo());
          assertThat(assignments.get(0).getDescription(), is("\"1\" <from ints>"));
      }
  
      private ParameterSignature signatureOfFoo() throws NoSuchMethodException {
          Method method = getClass().getMethod("foo", int.class);
          return ParameterSignature.signatures(method).get(0);
      }
  
  }