org.scalamock.proxy.ProxyMockFactory.scala Maven / Gradle / Ivy

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// Copyright (c) ScalaMock Contributors (https://github.com/paulbutcher/ScalaMock/graphs/contributors)
//
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// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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package org.scalamock.proxy

import org.scalamock.context.MockContext

import java.lang.reflect.{InvocationHandler, Proxy as JavaProxy}
import scala.reflect.{ClassTag, classTag}

trait ProxyMockFactory {

  protected def mock[T : ClassTag](implicit mockContext: MockContext) =
    createProxy[T, Mock](new MockInvocationHandler(mockContext))

  protected def stub[T : ClassTag](implicit mockContext: MockContext) =
    createProxy[T, Stub](new StubInvocationHandler(mockContext))

  private def createProxy[T : ClassTag, F : ClassTag](handler: InvocationHandler) = {
    val classLoader = Thread.currentThread.getContextClassLoader
    val interfaces = Array[Class[_]](classTag[T].runtimeClass, classTag[F].runtimeClass)
    try {
      JavaProxy.newProxyInstance(classLoader, interfaces, handler).asInstanceOf[T & F & scala.reflect.Selectable]
    } catch {
      case e: IllegalArgumentException => 
        throw new IllegalArgumentException("Unable to create proxy - possible classloader issue?", e)
    }
  }
}