PHPUnit：dataProvider问题

发布时间：2020-12-13 22:19:52 所属栏目：PHP教程来源：网络整理

导读：以下测试有什么问题： ?phpclass TestSomething extends PHPUnit_Framework_TestCase{ /** * @dataProvider provider */ public function testSomething($array,$expectedResult) { $this-assertEquals($array,$expectedResult); } public function provider

以下测试有什么问题：

<?php

class TestSomething extends PHPUnit_Framework_TestCase
{
    /**
     * @dataProvider provider
     */
    public function testSomething($array,$expectedResult)
    {
        $this->assertEquals($array,$expectedResult);
    }

    public function provider()
    {
        return array(
            array(array(),array()),);
    }
}

?>

错误信息：

$phpunit index.php
PHP Warning:  Missing argument 1 for TestSomething::testSomething() in /var/www/tests/something-test/index.php on line 8
PHP Warning:  Missing argument 2 for TestSomething::testSomething() in /var/www/tests/something-test/index.php on line 8
PHP Notice:  Undefined variable: array in /var/www/tests/something-test/index.php on line 11
PHP Notice:  Undefined variable: expectedResult in /var/www/tests/something-test/index.php on line 11
PHP Fatal error:  Uncaught exception 'PHPUnit_Framework_ExpectationFailedException' with message 'Failed asserting that 
Array
(
    [0] => Array
        (
        )

    [1] => Array
        (
        )

)
 is equal to <string:testSomething>.' in /usr/share/php/PHPUnit/Framework/Constraint/IsEqual.php:164
Stack trace:
#0 /usr/share/php/PHPUnit/Framework/Assert.php(2087): PHPUnit_Framework_Constraint_IsEqual->fail(Array,'')
#1 /usr/share/php/PHPUnit/Framework/Assert.php(343): PHPUnit_Framework_Assert::assertThat(Array,Object(PHPUnit_Framework_Constraint_IsEqual),'')
#2 /var/www/tests/something-test/index.php(11): PHPUnit_Framework_Assert::assertEquals('testSomething',Array)
#3 /usr/share/php/PHPUnit/Framework/TestSuite.php(537): TestSomething->testSomething('testSomething',Array,0)
#4 /usr/share/php/PHPUnit/Framework/TestSuite.php(816): PHPUnit_Framework_TestSuite::createTest(Object(ReflectionClass),'testSomething')
#5 /usr/share/php/PHPUnit/Framework/TestSuite.php(224): PHPUnit_Framework_TestSuite->addTestMethod(Object(ReflectionClass),Object(Reflectio in /usr/share/php/PHPUnit/Framework/Constraint/IsEqual.php on line 164

谢谢.

解决方法

这是因为你的测试也是作为构造函数执行的：

class TestSomething extends PHPUnit_Framework_TestCase
{
    /**
     * @dataProvider provider
     */
    public function testSomething($array,$expectedResult);
    }

    // ...

}

对于PHP4兼容性,您可以使用类名作为方法名来声明构造函数.它也是以不区分大小写的方式完成的(即：testSomething()被认为是TestSomething的构造函数).通常,您会将Test关键字附加到类名以防止这种情况发生(而不是预先添加)：

class SomethingTest extends PHPUnit_Framework_TestCase
{
    // ...
}

（编辑：李大同）

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