TYPO3 Core

Spliting Ticket #76914 due to have two developers work on different parts.
sysext/fluid/Tests/Unit/ViewHelpers/Format/CaseViewHelperTest.php:100: $this->assertSame($expected, $this->subject->render($input, $mode), sprintf('The conversion with mode "%s" did not perform as expected.', $mode));
sysext/fluid/Classes/ViewHelpers/Format/CaseViewHelper.php:114: public function render($value = null, $mode = self::CASE_UPPER)
sysext/fluid/Classes/ViewHelpers/CaseViewHelper.php:42: public function render($value = null, $default = false)