README

Fixes assertSame()/assertEquals() serialization errors running in separate processes.

Requirements

• php: >=7.4
• phpunit/phpunit: =9.5
• sebastianbergmann/comparator: ^4.0

Installing

composer require --dev phpfan/phpunit-patch

Example

class AssertionTest extends TestCase
{
    protected function callAssertSameReceivingClosure(\Closure $closure)
    {
        static::assertSame('aaa', 'bbb');
    }

    /**
     * @runInSeparateProcess
     * @preserveGlobalState disabled
     */
    public function testAssertionIncludingUnserializableTrace()
    {
        static::callAssertSameInClosure(function () {});
    }
}

Before Patching

PHPUnit\Framework\Exception: PHP Fatal error:  Uncaught Exception: Serialization of 'Closure' is not allowed in Standard input code:XX
Stack trace:
#0 Standard input code(XX): serialize(Array)
#1 Standard input code(XX): __phpunit_run_isolated_test()
#2 {main}
  thrown in Standard input code on line XX

After Patching

Failed asserting that two strings are identical.
--- Expected
+++ Actual
@@ @@
-'aaa'
+'bbb'

class DataProviderTest extends TestCase
{
    public function provideAdditionTestParams()
    {
        return [
            'say hello' => [
                function ($mr) {
                    return "Hello, $mr!";
                }
            ],
            'hello arrow' => [fn($ms) => "Hello, $ms!"]
        ];
    }

    /**
     * @runInSeparateProcess
     * @preserveGlobalState disabled
     * @dataProvider provideAdditionTestParams
     */
    public function testUseClosureDataProviderTest($data)
    {
        self::assertSame('Hello, aaa!', $data('aaa'));
    }
}

Before Patching

Serialization of 'Closure' is not allowed

After Patching

Time: 00:00.213, Memory: 6.00 MB

OK (2 tests, 2 assertions)