DirectPropertyAccessStrategyTest.java

package org.axonframework.common.property;

import org.junit.Test;

import static org.junit.Assert.*;

public class DirectPropertyAccessStrategyTest {

	@Test
	public void testGetValue() {
		final Property<TestMessage> actualProperty = getProperty(regularPropertyName());
		assertNotNull(actualProperty);
		assertNotNull(actualProperty.<String>getValue(propertyHoldingInstance()));
	}

	@Test
	public void testGetValue_BogusProperty() {
		assertNull(getProperty(unknownPropertyName()));
	}

	@Test(expected = NullPointerException.class)
	public void testGetValue_NullExceptionOnAccess() {
		getProperty(privatePropertyName()).getValue(propertyHoldingInstance());
	}

	@Test
	public void testOverriddenPropertyValue() {
		assertEquals("realValue", getProperty(overriddenPropertyName()).getValue(propertyHoldingInstance()));
	}

	private String overriddenPropertyName() {
		return "overriddenProperty1";
	}

	private String privatePropertyName() {
		return "privateProperty1";
	}

	private String regularPropertyName() {
		return "property1";
	}

	private String unknownPropertyName() {
		return "unknownProperty";
	}

	private TestMessage propertyHoldingInstance() {
		return new TestMessage();
	}

	private Property<TestMessage> getProperty(String property) {
		return new DirectPropertyAccessStrategy().propertyFor(TestMessage.class, property);
	}

	class TestMessage extends TestMessageParent {
		public String property1 = "property1Value";
		private Integer privateProperty1;
		private String overriddenProperty1 = "fakeValue";
	}

	class TestMessageParent{
		public String parentProperty1 = "parentProperty1Value";
		public String overriddenProperty1 = "realValue";
	}
}