public function testCompareStatuses()
{
$this->assertLessThan(0, Deal::compareStatuses(Deal::STATUS_VALUATION, Deal::STATUS_AVAILABLE));
$this->assertLessThan(0, Deal::compareStatuses(Deal::STATUS_VALUATION, Deal::STATUS_PROOFING));
$this->assertLessThan(0, Deal::compareStatuses(Deal::STATUS_VALUATION, Deal::STATUS_PRODUCTION));
$this->assertLessThan(0, Deal::compareStatuses(Deal::STATUS_PRODUCTION, Deal::STATUS_PROOFING));
$this->assertEquals(0, Deal::compareStatuses(Deal::STATUS_PRODUCTION, Deal::STATUS_PRODUCTION));
$this->assertEquals(0, Deal::compareStatuses(Deal::STATUS_VALUATION, Deal::STATUS_VALUATION));
$this->assertGreaterThan(0, Deal::compareStatuses(Deal::STATUS_AVAILABLE, Deal::STATUS_VALUATION));
$this->assertGreaterThan(0, Deal::compareStatuses(Deal::STATUS_AVAILABLE, Deal::STATUS_PRODUCTION));
$this->assertGreaterThan(0, Deal::compareStatuses(Deal::STATUS_AVAILABLE, Deal::STATUS_PROOFING));
$this->assertGreaterThan(0, Deal::compareStatuses(Deal::STATUS_UNDER_OFFER_WITH_OTHER, Deal::STATUS_UNDER_OFFER));
$this->assertGreaterThan(0, Deal::compareStatuses(Deal::STATUS_UNDER_OFFER_WITH_OTHER, Deal::STATUS_AVAILABLE));
}