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我一直Specs2現在正在測試我的代碼有一段時間了,在我的測試中,我希望確保某種類型的兩個對象比較正確平等的測試:Specs2 - 斯卡拉
"compare based on carrier value" in {
val b0 = new BitField32(343948)
val b0prim = new BitField32(343948)
val b1 = new BitField32(112)
b0prim should be equalTo(b0)
b1 should not be equalTo(b0)
}
當被執行該測試,我得到了一個錯誤
[error] x compare based on carrier value
[error] '[email protected]' is not equal to '[email protected]' (BitField32Spec.scala:34)
[error] Expected: [email protected][6c0d0900]
[error] Actual: [email protected][17805bd5]
這似乎是合理的,因爲我的班級沒有任何比較方法。於是,我嘗試了幾件事情來考慮:實施Ordered
,並提供各種比較方法:
/**
* mutable 32bit Bitfield
*/
class BitField32(var carrier: Int) extends Ordered[BitField32]{
override def equals(that: Any) = true
def canEqual(that: Any) = true
def compare(that: BitField32) = this.carrier - that.carrier
def ===(that: BitField32) = this.carrier == that.carrier
def ==(that: BitField32) = this.carrier == that.carrier
//(...)
}
但我還是繼續得到同樣的錯誤。我試着閱讀規範2的資料來看看equalTo匹配器是如何工作的,但之後我並不聰明。
任何想法如何修改我的類爲(股票)specs2匹配器拾取平等?
BitField32不是設計案例類 - 我希望它是可變的。
您還應該添加一個hashCode implmentation,如http://www.artima.com/pins1ed/object-equality.html中所述 –