GetterAndSetterTest.java

package org.springframework.data.simpledb.util;

import org.junit.Test;
import org.springframework.data.simpledb.core.entity.EntityWrapper;
import org.springframework.data.simpledb.reflection.MetadataParser;
import org.springframework.data.simpledb.reflection.ReflectionUtils;

import java.lang.reflect.Field;
import java.util.List;
import java.util.Map;

import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;

public class GetterAndSetterTest {

	@Test
	public void hasDeclaredGetterAndSetter_should_retrieve_only_fields_with_declared_getters_and_setters() {

		List<Field> declaredFieldsWithAccessorsAndMutators = MetadataParser.getSupportedFields(SampleBean.class);

		assertThat(declaredFieldsWithAccessorsAndMutators.size(), is(1));

		Field supportedField = declaredFieldsWithAccessorsAndMutators.get(0);

		assertThat(supportedField.getName(), is("withGetterAndSetter"));
		assertThat(ReflectionUtils.hasDeclaredGetterAndSetter(supportedField, SampleBean.class), is(true));
	}

	@Test(expected = AssertionError.class)
	public void retrieveGetter_and_retrieveSetter_From_returns_NULL_when_field_doesnt_declared_getter_and_setter() {
		SampleBean sampleBean = new SampleBean();
		sampleBean.withoutGetterAndSetter = "simple-db";

		EntityWrapper<SampleBean, String> sdbEntity = new EntityWrapper<SampleBean, String>(
				EntityInformationSupport.readEntityInformation(SampleBean.class), sampleBean);
		final Map<String, String> attributes = sdbEntity.serialize();

		final EntityWrapper<SampleBean, String> convertedEntity = new EntityWrapper<SampleBean, String>(
				EntityInformationSupport.readEntityInformation(SampleBean.class));
		convertedEntity.deserialize(attributes);

		assertThat(convertedEntity.getItem().withoutGetterAndSetter, is("simple-db"));
	}

	public static class SampleBean {

		private String withoutGetterAndSetter;
		private Integer withGetterAndSetter;
		private Boolean onlyWithGetter;

		public Integer getWithGetterAndSetter() {
			return withGetterAndSetter;
		}

		public void setWithGetterAndSetter(Integer withGetterAndSetter) {
			this.withGetterAndSetter = withGetterAndSetter;
		}

		public Boolean getOnlyWithGetter() {
			return onlyWithGetter;
		}
		
	}
}