bandwidthThrottle\tokenBucket\storage\FileStorageTest::testSetMicrotimeFailsWriting PHP Method

    public function testSetMicrotimeFailsWriting()
    {
        $this->getFunctionMock(__NAMESPACE__, "fwrite")->expects($this->atLeastOnce())->willReturn(false);
        vfsStream::setup('test');
        $storage = new FileStorage(vfsStream::url("test/data"));
        $storage->setMicrotime(1.1234);
    }