使用PowerMock模拟私有字段和私有方法

要模拟的类：

public class PrivateObject {

    private String privateString; public PrivateObject(String privateString) { this.privateString = privateString; } private String getPrivateString() { return this.privateString; } } 

使用PowerMock模拟：

// 类实例（class instance）
PrivateObject instance = new PrivateObject ();

// 模拟私有字段/变量（private field/variable）
MemberModifier
                .field(PrivateObject .class, "privateString").set( instance , "hellomock"); // 模拟私有方法（private method） MemberModifier .stub(MemberMatcher.method(PrivateObject .class, "getPrivateString")) .toReturn( "Power Mock");

本文转自:https://my.oschina.net/dabird/blog/607513?from=singlemessage