MockitoとSpecs2のビュー境界でScalaメソッドをモックすることは可能ですか？

Question

MockitoとSpecs2を使用して、パラメータのタイプにビューの境界線を持つメソッドをモックするときに問題が発生しました。例えば

：バインドビューは、メソッドへの余分な暗黙の引数に変換するので、単純に言えば、Mockitoは、実引数モックrecievesへの期待によって説明コールを調整することはできません

//Receiver.scala 
class Receiver { 
    def methodWithViewBound[T <% WrappedString](w : T) : Unit = { 
    //noop! 
    } 
} 

//WrappedString.scala 
class WrappedString(val wrapped : String) { 

} 

//TestMockedMethodWithViewBound.scala 
import org.specs2.mutable._ 
import org.specs2.specification._ 
import org.specs2.mock._ 
import org.mockito.Matchers 

class TestMockedMethodWithViewBound extends Specification with Mockito { 

    implicit def wrapString(s : String) : WrappedString = new WrappedString(s); 
    implicit def unwrapString(w : WrappedString) : String = w.wrapped; 

    "Mockito" should { 
    "Allow mocking of methods whose argument types include a view bound, using a matcher" in { 
     val receiver = mock[Receiver] 
     receiver.methodWithViewBound("Testing") 
     there was one(receiver).methodWithViewBound(Matchers.eq("Testing")) 
    } 


    "Allow mocking of methods whose argument types include a view bound, using an argument literal" in { 
     val receiver = mock[Receiver] 
     receiver.methodWithViewBound("Testing") 
     there was one(receiver).methodWithViewBound("Testing") 
    } 
    } 
} 

出力これが与えるの：

[15:18:46] [tim@ahtanum ../tim/Projects/MockitoTest] $ sbt test 
[info] Set current project to Mockito View Bounds Test (in build file:/home/tim/Projects/MockitoTest/) 
[info] Compiling 1 Scala source to /home/tim/Projects/MockitoTest/target/scala-2.9.1/test-classes... 
[info] Mockito should 
[error] x Allow mocking of methods whose argument types include a view bound 
[error]  The mock was not called as expected: 
[error] Invalid use of argument matchers! 
[error] 2 matchers expected, 1 recorded. 
[error] This exception may occur if matchers are combined with raw values: 
[error]  //incorrect: 
[error]  someMethod(anyObject(), "raw String"); 
[error] When using matchers, all arguments have to be provided by matchers. 
[error] For example: 
[error]  //correct: 
[error]  someMethod(anyObject(), eq("String by matcher")); 
[error] 
[error] For more info see javadoc for Matchers class. (TestMockedMethodWithViewBound.scala:12) 
[info] 
[info] 
[info] Total for specification TestMockedMethodWithViewBound 
[info] Finished in 175 ms 
[info] 1 example, 1 failure, 0 error 
[error] Failed: : Total 1, Failed 1, Errors 0, Passed 0, Skipped 0 
[error] Failed tests: 
[error]  TestMockedMethodWithViewBound 
[error] {file:/home/tim/Projects/MockitoTest/}default-3adcf2/test:test: Tests unsuccessful 
[error] Total time: 7 s, completed 07-Mar-2012 15:19:47 
[15:19:47] [tim@ahtanum ../tim/Projects/MockitoTest] $ sbt test 
[info] Set current project to Mockito View Bounds Test (in build file:/home/tim/Projects/MockitoTest/) 
[info] Compiling 1 Scala source to /home/tim/Projects/MockitoTest/target/scala-2.9.1/test-classes... 
[info] Mockito should 
[error] x Allow mocking of methods whose argument types include a view bound, using a matcher 
[error]  The mock was not called as expected: 
[error] Invalid use of argument matchers! 
[error] 2 matchers expected, 1 recorded. 
[error] This exception may occur if matchers are combined with raw values: 
[error]  //incorrect: 
[error]  someMethod(anyObject(), "raw String"); 
[error] When using matchers, all arguments have to be provided by matchers. 
[error] For example: 
[error]  //correct: 
[error]  someMethod(anyObject(), eq("String by matcher")); 
[error] 
[error] For more info see javadoc for Matchers class. (TestMockedMethodWithViewBound.scala:12) 
[error] x Allow mocking of methods whose argument types include a view bound, using an argument literal 
[error]  The mock was not called as expected: 
[error] Argument(s) are different! Wanted: 
[error] receiver.methodWithViewBound(
[error]  "Testing", 
[error]  ($anonfun$apply$mcV$sp$2) <function1> 
[error]); 
[error] -> at TestMockedMethodWithViewBound$$anonfun$1$$anonfun$apply$6$$anonfun$apply$2.apply$mcV$sp(TestMockedMethodWithViewBound.scala:22) 
[error] Actual invocation has different arguments: 
[error] receiver.methodWithViewBound(
[error]  "Testing", 
[error]  ($anonfun$apply$7) <function1> 
[error]); 
[error] -> at TestMockedMethodWithViewBound$$anonfun$1$$anonfun$apply$6.apply(TestMockedMethodWithViewBound.scala:21) 
[error] (TestMockedMethodWithViewBound.scala:19) 
[info] 
[info] 
[info] Total for specification TestMockedMethodWithViewBound 
[info] Finished in 325 ms 
[info] 2 examples (+1), 2 expectations (+1), 2 failures (+1), 0 error 
[error] Failed: : Total 2, Failed 2, Errors 0, Passed 0, Skipped 0 
[error] Failed tests: 
[error]  TestMockedMethodWithViewBound 
[error] {file:/home/tim/Projects/MockitoTest/}default-3adcf2/test:test: Tests unsuccessful 
[error] Total time: 7 s, completed 07-Mar-2012 15:23:05 

...誰もが前に、この問題に遭遇し、またはspecs2を使用してビューの境界または暗黙的なパラメータを持つメソッドをあざけるのいずれかの方法で渡って来ていますか？

おかげで、

ティム

Answer 1

ティムは、私は最新のspecs2 1.9-SNAPSHOTに変換パラメータを確認する可能性を追加しました。

私はこのような望ましくない効果が出てこないので、これはまだ実験的です。

例えば、Mockitoはどの関数が暗黙の変換であり、どの関数が「通常の」パラメータであるかを知ることができないため、Function1パラメータはデフォルトでokと確認されます。