package com.atlassian.plugins.rest.common.expand.resolver;
   
   import static org.junit.Assert.*;
   
   import org.junit.Before;
   import org.junit.Test;
   
   import java.util.Collection;
   import java.util.List;
  
  /**
   * Testing {@link CollectionEntityExpanderResolver}
   */
  public class CollectionEntityExpanderResolverTest {
      private CollectionEntityExpanderResolver resolver;
  
      @Before
      public void setUp() throws Exception {
          resolver = new CollectionEntityExpanderResolver();
      }
  
      @Test
      public void testHasExpanderWithNullClass() {
          try {
              final Class clazz = null;
              resolver.hasExpander(clazz);
              fail();
          } catch (NullPointerException e) {
              // expected
          }
      }
  
      @Test
      public void testHasExpanderWithClassForCollection() {
          assertTrue(resolver.hasExpander(Collection.class));
      }
  
      @Test
      public void testHasExpanderWithClassForList() {
          assertTrue(resolver.hasExpander(List.class));
      }
  
      @Test
      public void testHasExpanderWithClassForObject() {
          assertFalse(resolver.hasExpander(Object.class));
      }
  
      @Test
      public void testGetExpanderWithClassForCollection() {
          assertNotNull(resolver.getExpander(Collection.class));
      }
  
      @Test
      public void testGetExpanderWithClassForList() {
          assertNotNull(resolver.getExpander(List.class));
      }
  
      @Test
      public void testGetExpanderWithClassForObject() {
          assertNull(resolver.getExpander(Object.class));
      }
  }