PHP单元测试工具PHPUnit初体验

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更新时间:2024-11-13

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接到了个任务，需要对数字进行计算，因为涉及到整数，小数，和科学计数法等很多条件，所以人工测试非常麻烦，于是想到了PHP的单元测试工具PHPUnit，所以写个文档备查。

看了PHPUnit的文档之后基本有了一些了解， http://pear.php.net/manual/en/packages.php.phpunit.intro.php

工作流程如下： 1.设计你的class/API 2.创建测试程序集 3.实现class/API 4.运行测试 5.修正测试失败或错误，回到第4步。

我们来举个例子：下面是你要测试的class，其中formatn函数一个取任意数字的5位有效数字的函数。

CODE: ----------format_number.php----------- class fo {

function fo() { }

function formatn($num) { $num = rtrim($num，"0"); $pos = strpos($num，"."); $num = str_replace("."，""，$num); $count1 = strlen($num); $num = ltrim($num，"0"); $count2 = strlen($num); $zeroc = $count1 - $count2; $num = substr($num，0，6); $num = round($num/10); //$num = str_pad($num， 5， "0"); if ($pos !== false) { $num = str_pad($num， (strlen($num)+$zeroc)， "0"， STR_PAD_LEFT); $dotl = substr($num，0，$pos); $dotr = substr($num，$pos); $num = $dotl.".".$dotr; } return $num; }

} 接着创建TestCase，继承自PHPUnit_TestCase

CODE: ----------testcase.php-----------

require_once 'format_number.php'; require_once 'PHPUnit.php';

class foTest extends PHPUnit_TestCase {

//这个成员变量是存放要测试的类引用 var $abc;

//构造函数 function foTest($name) { $this->;PHPUnit_TestCase($name); }

//new一个要测试的类为成员变量abc赋值 function setUp() { $this->;abc = new fo; }

//unset要测试的类 function tearDown() { unset($this->;abc); }

//自定义的testcase function testFormatn1() { //调用要测试的类的方法，结果放到$result变量 $result = $this->;abc->;formatn("100.234"); //期望结果 $expected = "100.23"; //判断是否相等，这里使用assertTrue方法来判断布而值是否为true。 $this->;assertTrue($result == $expected); }

function testFormatn2() { $result = $this->;abc->;formatn("0.100234"); $expected = "0.10023"; $this->;assertTrue($result == $expected); }

function testFormatn3() { $result = $this->;abc->;formatn("0.100235"); $expected = "0.10024"; $this->;assertTrue($result == $expected); }

function testFormatn4() { $result = $this->;abc->;formatn("0.000100235"); $expected = "0.00010024"; $this->;assertTrue($result == $expected); }

function testFormatn5() { $result = $this->;abc->;formatn("0.000100232"); $expected = "0.00010023"; $this->;assertTrue($result == $expected); }

function testFormatn6() { $result = $this->;abc->;formatn("1343"); $expected = "1343"; $this->;assertTrue($result == $expected); }

function testFormatn7() { $result = $this->;abc->;formatn("1343.01"); $expected = "1343"; $this->;assertTrue($result == $expected); }

function testFormatn8() { $result = $this->;abc->;formatn("1343.05"); $expected = "1343.1"; $this->;assertTrue($result == $expected); }

function testFormatn9() { $result = $this->;abc->;formatn("0"); $expected = "0"; $this->;assertTrue($result == $expected); }

function testFormatn10() { $result = $this->;abc->;formatn("105.2342"); $expected = "105.23"; $this->;assertTrue($result == $expected); }

function testFormatn11() { $result = $this->;abc->;formatn("105.2375"); $expected = "105.24"; $this->;assertTrue($result == $expected); }

function testFormatn12() { $result = $this->;abc->;formatn("0.000523751"); $expected = "0.00052375"; $this->;assertTrue($result == $expected); }

function testFormatn13() { $result = $this->;abc->;formatn("0.000523755"); $expected = "0.00052376"; $this->;assertTrue($result == $expected); }