         
         XCTAssertEqual(
             model.ttl,
-            kNoTtle,
+            kNoTtl,
             "Error ttl should be zero")
     }
     

    private let kTtl:Int? = 134398765
    private let kTimestamp:TimeInterval = 1344556
    private let kEmpty:String = ""
    private let kNoTtle = 0
    
    func testInitTokenVersionTtl()
    {

        XCTAssertEqual(
            model.ttl,
            kTtl,
            "Error storing ttl")
    }
    
    func testInitSnapshotNil()
    {
        let snapshot:Any? = nil
        
        let model:FDatabaseModelUserSession = FDatabaseModelUserSession(
            snapshot:snapshot)
        
        XCTAssertEqual(
            model.status,
            MSession.Status.unknown,
            "Error default status")
        
        XCTAssertEqual(
            model.token,
            kEmpty,
            "Error default token")
        
        XCTAssertEqual(
            model.version,
            kEmpty,
            "Error default version")
        
        XCTAssertEqual(
            model.timestamp,
            kNoTime,
            "Error default timestamp")
        
        XCTAssertEqual(
            model.ttl,
            kNoTtl,
            "Error default ttl")
    }
}
