datamanagertest.java

应付作业+练习OOP做的东西

package tests;

import dataprocess.*;
import model.*;
import org.junit.*;

import userinterface.DistributionDisplayer;

public class DataManagerTest {
	@Before
	public void setUp() {
		datamanager = ConcreteDataManager.getInstance();
		displayer = new TestDisplayer();
		datamanager.setDisplayer(displayer);
	}

	@After
	public void cleanUp() {
		datamanager.deleteAll();
	}

	@Test
	public void testAdd() {
		for (double number : data) {
			datamanager.addData(number);
		}
		double[] accdata = datamanager.getAllData();
		Assert.assertEquals(data.length, accdata.length);
		Assert.assertEquals(data.length, displayer.getData().length);
	}

	@Test
	public void testDelete() {
		for (double number : data) {
			datamanager.addData(number);
		}

		datamanager.deleteData(data[0]);
		double[] accdata = datamanager.getAllData();
		Assert.assertEquals(data.length - 1, accdata.length);
		Assert.assertEquals(data.length - 1, displayer.getData().length);
	}

	@Test
	public void testProcess() {
		for (double number : data) {
			datamanager.addData(number);
		}
		datamanager.process();
		Result result = displayer.getResult();

		Assert.assertTrue(result.isSuitable());
	}

	private double[] data = { 5, 6.01, 6.80, 7.50, 8.04, 8.94, 9.9, 10.31,
			11.45 };

	private DataManager datamanager;

	private TestDisplayer displayer;

	class TestDisplayer implements DistributionDisplayer {

		public void drawDistribution(Result result) {
			this.result = result;

		}

		public void renewData(double[] newdata) {
			this.data = newdata;

		}

		public Result getResult() {
			return result;
		}

		public double[] getData() {
			return data;
		}

		private Result result;

		private double[] data;
	}

}