java - ScalaMock模拟通用Java接口(interface)重载方法

我正在尝试模拟具有重载方法且参数数量不同的Java通用接口。
接口代码为：

import java.util.concurrent.Callable;

public interface GOInterface<T> {
    void send(T record);
    void send(T record, Callable<T> onComplete);
}

我尝试使用onComplete功能模拟发送，如下所示：

导入java.util.concurrent.Callable

import org.scalamock.scalatest.MockFactory
import org.scalatest.{FlatSpec, Matchers}

class JavaInterfaceTest extends FlatSpec with Matchers with MockFactory {
  behavior of "scalamock"

  it should "mock java generic interface with overloaded method (with different number of parameters)" in {
    var result = ""
    val m = mock[GOInterface[String]]
    (m.send(_: String, _: Callable[String])).expects(*, *)
      .onCall{ case(s: String, c: Callable[String]) => c.call()}.once

    m.send("hello", new Callable[String] {
      override def call(): String = {result = "world"; result}
    })

    result should be("world")
  }


  it should "mock java generic interface with overloaded method (with different number of parameters) 2" in {
    var result = ""
    val m = mock[GOInterface[String]]
    (m.send(_: String)).expects(*).once

    m.send("hello")

    result should be("")
  }
}

我从编译器得到的错误是：

error: value expects is not a member of (String, java.util.concurrent.Callable[String]) => Unit
[ERROR]     (m.send(_: String, _: Callable[String])).expects(*, *)
[ERROR]                                              ^

error: value expects is not a member of String => Unit
[ERROR]     (m.send(_: String)).expects(*).once
[ERROR]

通过查看ScalaMock git上的不同示例，我可以看到没有测试用具有不同参数计数的重载方法来检查通用接口。

我的依赖项是：

        <dependency>
            <groupId>org.scalamock</groupId>
            <artifactId>scalamock-scalatest-support_2.11</artifactId>
            <version>3.6.0</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.scalamock</groupId>
            <artifactId>scalamock-core_2.11</artifactId>
            <version>3.6.0</version>
            <scope>test</scope>
        </dependency>

同时，我在ScalaMock存储库中创建了bug。

最佳答案

首先，我建议升级到最新版本的ScalaMock，但是那里也存在围绕泛型和重载的极端情况。

要解决此问题，在许多情况下，先锁定类型，然后创建一个模拟程序会有所帮助：

trait StringGoInterface extends GoInterface[String]
val m = mock[StringGoInterface]