testsforcalculation.java

Enjoy Web Dev With Tapestry 一书的源代码

package com.ttdev.tddcalc;

import java.net.*;
import java.util.*;

import junit.framework.*;

import com.gargoylesoftware.htmlunit.*;
import com.gargoylesoftware.htmlunit.html.*;

public class TestsForCalculation extends TestCase {
	private WebClient client;
	private HtmlPage page;
	private HtmlForm form;

	protected void setUp() throws Exception {
		client = new WebClient();
		URL url = new URL("http://localhost:8080/TDDCalc/app");
		page = (HtmlPage) client.getPage(url);
		form = page.getFormByName("calcForm");
	}
	public void testCanInputTwoIntegers() throws Exception {
		assertTrue(form.getInputByName("num1") instanceof HtmlTextInput);
		assertTrue(form.getInputByName("num2") instanceof HtmlTextInput);
	}
	public void testAdd() throws Exception {
		HtmlTextInput num1 = (HtmlTextInput) form.getInputByName("num1");
		num1.setValueAttribute("1");
		HtmlTextInput num2 = (HtmlTextInput) form.getInputByName("num2");
		num2.setValueAttribute("2");
		HtmlSelect operator = form.getSelectByName("operator");
		operator.getOption(0).setSelected(true);
		HtmlSubmitInput ok = (HtmlSubmitInput) form.getInputByName("OK");
		HtmlPage resultPage = (HtmlPage) ok.click();
		HtmlElement result = resultPage.getHtmlElementById("result");
		assertEquals(result.asText(), "Result: 3");
	}
	public void testOperatorList() throws Exception {
		HtmlSelect operator = form.getSelectByName("operator");
		assertEquals(operator.getOptionSize(), 4);
		assertEquals(operator.getOption(0).asText(), "Add");
		assertEquals(operator.getOption(1).asText(), "Minus");
		assertEquals(operator.getOption(2).asText(), "Multiply");
		assertEquals(operator.getOption(3).asText(), "Divide");
		List selectedOptions = operator.getSelectedOptions();
		assertEquals(selectedOptions.size(), 1);
		assertEquals(((HtmlOption)selectedOptions.get(0)).asText(), "Add");
	}
	public void testMinus() throws Exception {
		HtmlTextInput num1 = (HtmlTextInput) form.getInputByName("num1");
		num1.setValueAttribute("1");
		HtmlTextInput num2 = (HtmlTextInput) form.getInputByName("num2");
		num2.setValueAttribute("2");
		HtmlSelect operator = form.getSelectByName("operator");
		operator.getOption(1).setSelected(true);
		HtmlSubmitInput ok = (HtmlSubmitInput) form.getInputByName("OK");
		HtmlPage resultPage = (HtmlPage) ok.click();
		HtmlElement result = resultPage.getHtmlElementById("result");
		assertEquals(result.asText(), "Result: -1");
	}
	public void testOKLabel() throws Exception {
		assertEquals(form.getInputByName("OK").getValueAttribute(), "OK");
	}
	public void testBadInt() throws Exception {
		HtmlTextInput num1 = (HtmlTextInput) form.getInputByName("num1");
		num1.setValueAttribute("abc");
		HtmlTextInput num2 = (HtmlTextInput) form.getInputByName("num2");
		num2.setValueAttribute("2");
		HtmlSelect operator = form.getSelectByName("operator");
		operator.getOption(0).setSelected(true);
		HtmlSubmitInput ok = (HtmlSubmitInput) form.getInputByName("OK");
		List alerts = new ArrayList();
		client.setAlertHandler(new CollectingAlertHandler(alerts));
		ok.click();
		assertEquals(alerts.size(), 1);
		assertTrue(((String) alerts.get(0)).indexOf("number 1") != -1);
	}
	public HtmlPage getPage() {
		return page;
	}
}