What potential errors can cause PHPUnit to abort with exit code 255?

PHPUnit may abort with exit code 255 due to various potential errors such as failing assertions, syntax errors in test files, missing dependencies, or fatal errors during test execution. To resolve this issue, you should carefully review the error messages provided by PHPUnit to identify the specific cause of the failure and address it accordingly. This may involve fixing the failing assertions, correcting syntax errors, installing missing dependencies, or debugging fatal errors in your code. 

// Example fix for resolving PHPUnit aborting with exit code 255 due to failing assertions
class MyTest extends \PHPUnit\Framework\TestCase {
    public function testExample() {
        $value = 5;
        $this->assertEquals(5, $value); // Fix failing assertion by ensuring the values match
    }
}

Keywords

PHPUnit exit code 255 fatal error segmentation fault memory limit

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