PHPUnit\Framework\TestCase / PHPUnit\Framework\Test interface contradiction [PHPUnit 6.5]

[weirdan]

Version: PHPUnit 6.5

PHPUnit\Framework\TestCase::run() is defined as returning nullable TestResult, however PHPUnit\Framework\Test::run() (which TestCase::run() should be compatible to) declares non-nullable return type, both in docblocks.

phpunit/src/Framework/TestCase.php

Lines 758 to 762 in 093ca55

	* @return TestResult|null
	*
	* @throws Exception
	*/
	public function run(TestResult $result = null)

phpunit/src/Framework/Test.php

Lines 18 to 27 in 093ca55

	interface Test extends Countable
	{
	/**
	* Runs a test and collects its result in a TestResult instance.
	*
	* @param TestResult $result
	*
	* @return TestResult
	*/
	public function run(TestResult $result = null);

This results in the static analyzers complaining (which, of course, could be suppressed, but I think it'd be better fixed in PHPUnit).

For the reference, PHPUnit 7 has non-nullable returns on the corresponding class and interface methods.