public function testSettingExpiresInSetsExpireAt() { $o = new OAuth2($this->minimal); $this->assertNull($o->getExpiresAt()); $aShortWhile = 5; $o->setExpiresIn($aShortWhile); $this->assertNotNull($o->getExpiresAt()); $this->assertEquals($aShortWhile, $o->getExpiresAt() - $o->getIssuedAt()); }