public function testSFlush() { $this->_client->sAdd('foo', 'bar1'); $this->_client->sAdd('foo', 'bar2'); $this->_client->sAdd('foo', 'bar3'); $this->assertSame(3, $this->_client->sCard('foo')); $members = $this->_client->sFlush('foo'); sort($members); $this->assertSame(['bar1', 'bar2', 'bar3'], $members); $this->assertSame(0, $this->_client->sCard('foo')); }