PHP單元測試工具PHPUnit初體驗_開源單元測試工具

PHP單元測試工具PHPUnit初體驗

發表于：2008-07-18來源：作者：點擊數：標簽：php PHP 單元小數工具PHPUnit

今天接到了個任務，需要對數字進行計算，因為涉及到整數，小數，和科學計數法等很多條件，所以人工測試非常麻煩，于是想到了 PHP 的單元測試工具 PHPUnit ，所以寫個文檔備查。看了PHPUnit的文檔之后基本有了一些了解， http://pear.php.net/manual/en/pac

今天接到了個任務，需要對數字進行計算，因為涉及到整數，小數，和科學計數法等很多條件，所以人工測試非常麻煩，于是想到了PHP的單元測試工具PHPUnit，所以寫個文檔備查。

看了PHPUnit的文檔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.設計你的class/API
2.創建測試程序集
3.實現class/API
4.運行測試
5.修正測試失敗或錯誤，回到第4步。

我們來舉個例子：
下面是你要測試的class，其中formatn函數一個取任意數字的5位有效數字的函數。

CODE:

clearcase/" target="_blank" >cc3 1px solid; PADDING-RIGHT: 10px; BORDER-TOP: #698cc3 1px solid; PADDING-LEFT: 10px; PADDING-BOTTOM: 10px; MARGIN: 3px 2em 2em; BORDER-LEFT: #698cc3 1px solid; WORD-BREAK: break-all; PADDING-TOP: 5px; BORDER-BOTTOM: #698cc3 1px solid">----------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;
}

}

}
接著創建TestCase，繼承自PHPUnit_TestCase

CODE:

----------testcase.php-----------

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

class foTest extends PHPUnit_TestCase {

//這個成員變量是存放要測試的類引用
var $abc;

//構造函數
function foTest($name) {
$this->;PHPUnit_TestCase($name);
}

//new一個要測試的類為成員變量abc賦值
function setUp() {
$this->;abc = new fo;
}

//unset要測試的類
function tearDown() {
unset($this->;abc);
}

//自定義的testcase
function testFormatn1() {
//調用要測試的類的方法，結果放到$result變量
$result = $this->;abc->;formatn("100.234");
//期望結果
$expected = "100.23";
//判斷是否相等，這里使用assertTrue方法來判斷布而值是否為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);
}

}

原文轉自：http://www.kjueaiud.com

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