package org.apache.spark.metrics import org.mockito.ArgumentMatcher import scala.reflect.ClassTag object TestImplicits { import scala.language.implicitConversions implicit def matcher[T](f: (T) => Boolean): ArgumentMatcher[T] = new ArgumentMatcher[T]() { def matches(o: Any): Boolean = f(o.asInstanceOf[T]) } } object TestUtils { def getField[T: ClassTag](fieldName: String): java.lang.reflect.Field = { val field = scala.reflect.classTag[T].runtimeClass.getDeclaredField(fieldName) field.setAccessible(true) field } }