[ACCEPTED]-How to catch PHP Warning in PHPUnit-phpunit
PHPUnit_Util_ErrorHandler::handleError() throws one of several exception types based 2 on the error code:
PHPUnit_Framework_Error_NoticeforE_NOTICE,E_USER_NOTICE, andE_STRICTPHPUnit_Framework_Error_WarningforE_WARNINGandE_USER_WARNINGPHPUnit_Framework_Errorfor all others
You can catch and expect 1 these as you would any other exception.
/**
* @expectedException PHPUnit_Framework_Error_Warning
*/
function testNegativeNumberTriggersWarning() {
$fixture = new someClass;
$fixture->loadValue(-1);
}
I would create a separate case to test when 2 the notice/warning is expected.
For PHPUnit 1 v6.0+ this is the up to date syntax:
use PHPUnit\Framework\Error\Notice;
use PHPUnit\Framework\Error\Warning;
use PHPUnit\Framework\TestCase;
class YourShinyNoticeTest extends TestCase
{
public function test_it_emits_a_warning()
{
$this->expectException(Warning::class);
file_get_contents('/nonexistent_file'); // This will emit a PHP Warning, so test passes
}
public function test_it_emits_a_notice()
{
$this->expectException(Notice::class);
$now = new \DateTime();
$now->whatever; // Notice gets emitted here, so the test will pass
}
}
What worked for me was modifying my phpunit.xml 2 to have
<phpunit
convertErrorsToExceptions="true"
convertNoticesToExceptions="true"
convertWarningsToExceptions="true"
strict="true"
>
</phpunit>
The key was to use strict="true" to get the warnings 1 to result in a failed test.
You can also write a phpunit.xml file (on 1 your tests dir) with this:
<phpunit
convertErrorsToExceptions="true"
convertNoticesToExceptions="false"
stopOnFailure="false">
</phpunit>
Using Netsilik/BaseTestCase (MIT License) you can test directly 3 for triggered Errors/Warnings, without converting 2 them to Exceptions:
composer require netsilik/base-test-case
Testing for an E_USER_NOTICE:
<?php
namespace Tests;
class MyTestCase extends \Netsilik\Testing\BaseTestCase
{
/**
* {@inheritDoc}
*/
public function __construct($name = null, array $data = [], $dataName = '')
{
parent::__construct($name, $data, $dataName);
$this->_convertNoticesToExceptions = false;
$this->_convertWarningsToExceptions = false;
$this->_convertErrorsToExceptions = true;
}
public function test_whenNoticeTriggered_weCanTestForIt()
{
$foo = new Foo();
$foo->bar();
self::assertErrorTriggered(E_USER_NOTICE, 'The warning string');
}
}
Hope 1 this helps someone in the future.
public function testFooBar(): void
{
// this is required
$this->expectWarning();
// these are optional
$this->expectWarningMessage('fopen(/tmp/non-existent): Failed to open stream: No such file or directory');
$this->expectWarningMessageMatches('/No such file or directory/');
fopen('/tmp/non-existent', 'rb');
}
0
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