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                [TOC] ## 概述 數據供給器,可以抽象出數據與測試的,便于管理 - 測試方法可以接受任意參數。這些參數由數據供給器方法,用`@dataProvider`提供 - 數據供給器方法必須聲明為 public,其返回值要么是一個數組,其每個元素也是數組,要么是一個實現了 Iterator 接口的對象 ## 實例 ### 測試數據為數組 <details> <summary>test.php</summary> ``` <?php use PHPUnit\Framework\TestCase; class DataTest extends TestCase{ /** * @dataProvider additionProvider * @param $a * @param $b * @param $expected */ public function testAdd($a,$b,$expected){ $this->assertEquals($expected,$a+$b); } /** * @return int[][] */ public function additionProvider(){ // 字符串key 為注釋,可以不設置 return [ 'adding zeros' => [0, 0, 0], 'zero plus one' => [0, 1, 1], 'one plus zero' => [1, 0, 1], 'one plus one' => [1, 1, 2] ]; } } ``` </details> <br/> ### 測試數據為可迭代對象 <details> <summary>test.php</summary> ``` <?php use PHPUnit\Framework\TestCase; class IteratorDemo implements Iterator{ private array $data = [ [0, 0, 0], [0, 1, 1], [1, 0, 1], [1, 1, 2] ]; private int $index = 0; public function current(){ return $this->data[$this->index]; } public function next(){ $this->index++; } public function key(){ return "key is :".$this->index; } public function valid(){ return $this->index<=count($this->data)-1; } public function rewind(){ $this->index=0; } } class DataTest extends TestCase{ /** * @dataProvider additionProvider * @param $a * @param $b * @param $expected */ public function testAdd($a,$b,$expected){ $this->assertEquals($expected,$a+$b); } /** * @return Iterator */ public function additionProvider(){ // 字符串key 為注釋,可以不設置 return new IteratorDemo(); } } ``` </details> <br/>
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