Examples of org.springframework.test.AssertThrows

org.springframework.test.AssertThrows
class under test public class Foo { public void someBusinessLogic(String name) { if (name == null) { throw new IllegalArgumentException("The 'name' argument is required"); } // rest of business logic here... } } The test for the above bad argument path can be expressed using the {@link AssertThrows} class like so:
```
 public class FooTest { public void testSomeBusinessLogicBadArgumentPath() { new AssertThrows(IllegalArgumentException.class) { public void test() { new Foo().someBusinessLogic(null); } }.runTest(); } }
```
This will result in the test passing if the Foo.someBusinessLogic(..) method threw an {@link java.lang.IllegalArgumentException}; if it did not, the test would fail with the following message:
```
 "Must have thrown a [class java.lang.IllegalArgumentException]"
```
If the wrong type of {@link java.lang.Exception} was thrown, thetest will also fail, this time with a message similar to the following:
```
 "junit.framework.AssertionFailedError: Was expecting a [class java.lang.UnsupportedOperationException] to be thrown, but instead a [class java.lang.IllegalArgumentException] was thrown"
```
The test for the correct {@link java.lang.Exception} respects polymorphism,so you can test that any old {@link java.lang.Exception} is thrown like so:
```
 public class FooTest { public void testSomeBusinessLogicBadArgumentPath() { // any Exception will do... new AssertThrows(Exception.class) { public void test() { new Foo().someBusinessLogic(null); } }.runTest(); } }
```
Intended for use with JUnit 4 and TestNG (as of Spring 3.0). You might want to compare this class with the {@link junit.extensions.ExceptionTestCase} class. @author Rick Evans @author Juergen Hoeller @since 2.0 @deprecated favor use of JUnit 4's {@code @Test(expected=...)} support

 * @author Rick Evans
 */
public final class ConstructorArgumentEntryTests extends TestCase {


  public void testCtorBailsOnNegativeCtorIndexArgument() throws Exception {
    new AssertThrows(IllegalArgumentException.class) {
      public void test() throws Exception {
        new ConstructorArgumentEntry(-1);
      }
    }.runTest();
  }

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        final MessageListenerAdapter102 adapter = new MessageListenerAdapter102(delegate) {
            protected Object extractMessage(Message message) {
                return message;
            }
        };
        new AssertThrows(InvalidDestinationException.class) {
            public void test() throws Exception {
                adapter.onMessage(sentTextMessage, session);
            }
        }.runTest();

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        final MessageListenerAdapter102 adapter = new MessageListenerAdapter102(delegate) {
            protected Object extractMessage(Message message) {
                return message;
            }
        };
        new AssertThrows(JMSException.class) {
            public void test() throws Exception {
                adapter.onMessage(sentTextMessage, session);
            }
        }.runTest();

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        final MessageListenerAdapter102 adapter = new MessageListenerAdapter102(delegate) {
            protected Object extractMessage(Message message) {
                return message;
            }
        };
        new AssertThrows(ListenerExecutionFailedException.class) {
            public void test() throws Exception {
                adapter.onMessage(sentTextMessage, session);
            }
        }.runTest();

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    // simply must not bail...
    new DefaultNamespaceHandlerResolver(null);
  }


  public void testCtorWithNullClassLoaderArgumentAndNullMappingLocationArgument() throws Exception {
    new AssertThrows(IllegalArgumentException.class) {
      public void test() throws Exception {
        new DefaultNamespaceHandlerResolver(null, null);
      }
    }.runTest();
  }

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    String string = bundle.getString(MESSAGE_KEY);
    assertEquals("ned", string);
  }


  public void testSetAsTextWithNull() throws Exception {
    new AssertThrows(IllegalArgumentException.class) {
      public void test() throws Exception {
        ResourceBundleEditor editor = new ResourceBundleEditor();
        editor.setAsText(null);
      }
    }.runTest();

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      }
    }.runTest();
  }


  public void testSetAsTextWithEmptyString() throws Exception {
    new AssertThrows(IllegalArgumentException.class) {
      public void test() throws Exception {
        ResourceBundleEditor editor = new ResourceBundleEditor();
        editor.setAsText("");
      }
    }.runTest();

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      }
    }.runTest();
  }


  public void testSetAsTextWithWhiteSpaceString() throws Exception {
    new AssertThrows(IllegalArgumentException.class) {
      public void test() throws Exception {
        ResourceBundleEditor editor = new ResourceBundleEditor();
        editor.setAsText("   ");
      }
    }.runTest();

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      }
    }.runTest();
  }


  public void testSetAsTextWithJustSeparatorString() throws Exception {
    new AssertThrows(IllegalArgumentException.class) {
      public void test() throws Exception {
        ResourceBundleEditor editor = new ResourceBundleEditor();
        editor.setAsText("_");
      }
    }.runTest();

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 * @author Rick Evans
 */
public final class CustomCollectionEditorTests extends TestCase {


  public void testCtorWithNullCollectionType() throws Exception {
    new AssertThrows(IllegalArgumentException.class) {
      public void test() throws Exception {
        new CustomCollectionEditor(null);
      }
    }.runTest();
  }

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