public function testGetMarketSummary()
 {
     $summary = $this->client->getMarketSummary(Currency::XBT, Currency::USD);
     $this->assert($summary, instance_of, '\\IndependentReserve\\Object\\MarketSummary');
     $this->verify($summary->getDayHighestPrice(), is_greater_than, 0);
     $this->verify($summary->getDayLowestPrice(), is_greater_than, 0);
     $this->verify($summary->getDayAveragePrice(), is_between, $summary->getDayLowestPrice(), 'and', $summary->getDayHighestPrice());
     $this->verify($summary->getDayVolumeXbt(), is_greater_than, 0);
     $this->verify($summary->getCurrentLowestOfferPrice(), is_greater_than, 0);
     $this->verify($summary->getCurrentHighestBidPrice(), is_greater_than, 0);
     $this->verify($summary->getLastPrice(), is_greater_than, 0);
     $this->verify($summary->getPrimaryCurrencyCode(), equals, Currency::XBT);
     $this->verify($summary->getSecondaryCurrencyCode(), equals, Currency::USD);
     $this->verify(date, $summary->getCreatedTimestamp(), is_after, time() - 5);
 }