Added test for summarizable

public/biopet-core/src/test/scala/nl/lumc/sasc/biopet/core/summary/SummarizableTest.scala

+package nl.lumc.sasc.biopet.core.summary
+
+import java.io.File
+
+import org.scalatest.Matchers
+import org.scalatest.testng.TestNGSuite
+import org.testng.annotations.Test
+
+/**
+  * Created by pjvanthof on 14/01/16.
+  */
+class SummarizableTest extends TestNGSuite with Matchers {
+  @Test
+  def testDefaultMerge: Unit = {
+    val summarizable = new Summarizable {
+      def summaryFiles: Map[String, File] = ???
+      def summaryStats: Any = ???
+    }
+    intercept[IllegalStateException] {
+      summarizable.resolveSummaryConflict("1", "1", "key")
+    }
+  }
+
+  def testOverrideMerge: Unit = {
+    val summarizable = new Summarizable {
+      def summaryFiles: Map[String, File] = ???
+      def summaryStats: Any = ???
+      override def resolveSummaryConflict(v1: Any, v2: Any, key: String) = v1
+    }
+    summarizable.resolveSummaryConflict("1", "1", "key") shouldBe "1"
+  }
+}