-abstract class SomeAbstractTestCase extends TestCase
-{
-    private MockObject $mockProperty;
-
-    protected function setUp(): void
-    {
-        $this->mockProperty = $this->createMock(\stdClass::class);
-        $this->mockProperty->expects($this->once())
-            ->method('someMethod')
-            ->willReturn('someValue');
-    }
-}