BeanCursorTest.java

package org.robobinding.itempresentationmodel;

import java.util.List;

import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.annotation.Config;

import com.google.common.collect.Lists;

/**
 * 
 * @since 1.0
 * @version $Revision: 1.0 $
 * @author Cheng Wei
 */
@Config(manifest = Config.NONE)
@RunWith(RobolectricTestRunner.class)
public class BeanCursorTest {
	private List<Bean> beans;
	private BeanCursor<Bean> beanCursor;

	@Before
	public void setUp() {
		beans = Lists.newArrayList();
		beans.add(new Bean("bean1 prop1"));
		beans.add(new Bean("bean2 prop1"));

		beanCursor = BeanCursor.create(beans, Bean.class);
	}

	@Test
	public void whenGetProperty1WithCorrectStringType_thenReturnExpectedResult() {
		beanCursor.moveToFirst();
		String property1 = beanCursor.getString(property1ColumnIndex());

		Assert.assertEquals(expectedProperty1OfBean1(), property1);
	}

	private String expectedProperty1OfBean1() {
		Bean bean1 = beans.get(0);
		return bean1.getProperty1();
	}

	@Test(expected = ClassCastException.class)
	public void whenGetProperty1WithWrongDoubleType_thenThrowException() {
		beanCursor.moveToFirst();
		beanCursor.getDouble(property1ColumnIndex());
	}

	@Test
	public void givenMoveToSecondPosition_whenGetProperty1_thenReturnExpectedResult() {
		beanCursor.moveToFirst();
		beanCursor.moveToNext();

		String property1 = beanCursor.getString(property1ColumnIndex());

		Assert.assertEquals(expectedProperty1OfBean2(), property1);
	}

	private int property1ColumnIndex() {
		return beanCursor.getColumnIndex(Bean.PROPERTY1);
	}

	private String expectedProperty1OfBean2() {
		Bean bean2 = beans.get(1);
		return bean2.getProperty1();
	}

	@Test
	public void whenGetObjectAtFirstPosition_thenReturnExpectedBean() {
		Bean bean1 = beanCursor.getObjectAtPosition(0);

		Assert.assertEquals(beans.get(0), bean1);
	}

	@Test
	public void whenGetObjectAtSecondPosition_thenReturnExpectedBean() {
		Bean bean2 = beanCursor.getObjectAtPosition(1);

		Assert.assertEquals(beans.get(1), bean2);
	}

	public static class Bean {
		public static final String PROPERTY1 = "property1";
		public static final String PROPERTY2 = "property2";
		private String property1;

		public Bean(String property1) {
			this.property1 = property1;
		}

		public String getProperty1() {
			return property1;
		}

		public int getProperty2() {
			return 0;
		}

		public double nonProperty() {
			return 0.0;
		}
	}
}