今天接到了个任务,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。 CODE: ----------format_number.php----------- 接着创建TestCase,继承自PHPUnit_TestCaseclass 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; } } CODE: ----------testcase.php----------- 最后还需要一个运行测试的程序<?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); } } CODE: ----------runtest.php----------- 现在就可以通过命令行运行这个testcase<?php require_once 'testcase.php'; require_once 'PHPUnit.php'; $suite = new PHPUnit_TestSuite("foTest"); $result = PHPUnit::run($suite); echo $result->;toString(); ?>; php runtest.php 得到结果如下: CODE: TestCase foTest->;testFormatn1() passed 其中testFormatn6的测试失败,TestCase foTest->;testFormatn2() passed TestCase foTest->;testFormatn3() passed TestCase foTest->;testFormatn4() passed TestCase foTest->;testFormatn5() passed TestCase foTest->;testFormatn7() passed TestCase foTest->;testFormatn8() passed TestCase foTest->;testFormatn9() passed TestCase foTest->;testFormatn10() passed TestCase foTest->;testFormatn11() passed TestCase foTest->;testFormatn12() passed TestCase foTest->;testFormatn13() passed TestCase foTest->;testFormatn6() failed: expected TRUE, actual FALSE 我们就可以去检查一下我们的代码在什么地方出问题了。 补充一点 也可以把assertTrue方法换assertEquals,如下: CODE: function testFormatn6() { 如果失败得到对应的结果会直观一些(可以显示错误的结果):$result = $this->;abc->;formatn("1343"); $expected = "1343"; $this->;assertEquals($expected, $result); } CODE: TestCase foTest->;testFormatn8() failed: expected 1343 , actual 134. |