public function testGetDefaultHelperReturnsDefinedDefaultHelper() { $helperA = $this->prophesize(InstanceHelper::class); $helperB = $this->prophesize(InstanceHelper::class); $helperRegistry = new InstanceHelperRegistry(); $helperRegistry->addHelper('helperA', $helperA->reveal()); $helperRegistry->addHelper('helperB', $helperB->reveal()); $helperRegistry->setDefaultHelper('helperB'); $this->assertSame($helperB->reveal(), $helperRegistry->getDefaultHelper()); }