1 files changed, 33 insertions, 0 deletions
diff --git a/src/main/scala/com/iinteractive/test/harness/package.scala b/src/main/scala/com/iinteractive/test/harness/package.scala
new file mode 100644
index 0000000..1b74f9d
--- /dev/null
+++ b/src/main/scala/com/iinteractive/test/harness/package.scala
@@ -0,0 +1,33 @@
+package com.iinteractive.test
+
+/** Classes to handle running test instances and providing output. */
+package object harness {
+  import scala.reflect.{ClassTag,classTag}
+
+  /** Loads `className`, returning the
+    * [[http://docs.oracle.com/javase/7/docs/api/java/lang/Class.html Class]]
+    * instance.
+    */
+  def loadClass[T: ClassTag] (className: String): Class[_] =
+    classTag[T].runtimeClass.getClassLoader.loadClass(className)
+
+  /** Loads `className` and creates a new instance of it, using the
+    * no-argument constructor.
+    */
+  def newInstance[T: ClassTag] (className: String): T =
+    loadClass[T](className).newInstance.asInstanceOf[T]
+
+  /** Loads `className` and creates a new instance of it, using a
+    * one-argument constructor. Passes `arg` as the argument to the
+    * constructor.
+    */
+  def newInstance[T: ClassTag, U <: AnyRef: ClassTag] (
+    className: String,
+    arg: U
+  ): T = {
+    val classObj = loadClass[T](className)
+    val argClassObj = classTag[U].runtimeClass
+    val constructor = classObj.getConstructor(argClassObj)
+    constructor.newInstance(arg).asInstanceOf[T]
+  }
+}