public function testHasItem() { $namespace = 'ns'; $key = 'key'; $returnValue = true; $stub = $this->getHierarchyCacheStub(); $stub->expects($this->once())->method('hasItem')->with('|' . $namespace . '|' . $key)->willReturn($returnValue); $pool = new NamespacedCachePool($stub, $namespace); $this->assertEquals($returnValue, $pool->hasItem($key)); }