Added basic testing

public/biopet-framework/src/test/scala/nl/lumc/sasc/biopet/tools/VcfStatsTest.scala

+package nl.lumc.sasc.biopet.tools
+
+import org.scalatest.Matchers
+import org.scalatest.testng.TestNGSuite
+import org.testng.annotations.Test
+import scala.collection.mutable
+import VcfStats._
+
+/**
+ * Created by pjvan_thof on 2/5/15.
+ */
+class VcfStatsTest extends TestNGSuite with Matchers {
+
+  @Test
+  def testSampleToSampleStats: Unit = {
+    val s1 = SampleToSampleStats()
+    val s2 = SampleToSampleStats()
+    s1.alleleOverlap shouldBe 0
+    s1.genotypeOverlap shouldBe 0
+    s2.alleleOverlap shouldBe 0
+    s2.genotypeOverlap shouldBe 0
+
+    s1 += s2
+    s1.alleleOverlap shouldBe 0
+    s1.genotypeOverlap shouldBe 0
+    s2.alleleOverlap shouldBe 0
+    s2.genotypeOverlap shouldBe 0
+
+    s2.alleleOverlap = 2
+    s2.genotypeOverlap = 3
+
+    s1 += s2
+    s1.alleleOverlap shouldBe 2
+    s1.genotypeOverlap shouldBe 3
+    s2.alleleOverlap shouldBe 2
+    s2.genotypeOverlap shouldBe 3
+
+    s1 += s2
+    s1.alleleOverlap shouldBe 4
+    s1.genotypeOverlap shouldBe 6
+    s2.alleleOverlap shouldBe 2
+    s2.genotypeOverlap shouldBe 3
+  }
+
+  @Test
+  def testSampleStats: Unit = {
+    val s1 = SampleStats()
+    val s2 = SampleStats()
+
+    s1.sampleToSample += "s1" -> SampleToSampleStats()
+    s1.sampleToSample += "s2" -> SampleToSampleStats()
+    s2.sampleToSample += "s1" -> SampleToSampleStats()
+    s2.sampleToSample += "s2" -> SampleToSampleStats()
+
+    s1.sampleToSample("s1").alleleOverlap = 1
+    s2.sampleToSample("s2").alleleOverlap = 2
+
+    s1.genotypeStats += "1" -> mutable.Map(1 -> 1)
+    s2.genotypeStats += "2" -> mutable.Map(2 -> 2)
+
+    val ss1 = SampleToSampleStats()
+    val ss2 = SampleToSampleStats()
+
+    s1 += s2
+    s1.genotypeStats shouldBe mutable.Map("1" -> mutable.Map(1 -> 1), "2" -> mutable.Map(2 -> 2))
+    ss1.alleleOverlap = 1
+    ss2.alleleOverlap = 2
+    s1.sampleToSample shouldBe mutable.Map("s1" -> ss1, "s2" -> ss2)
+
+    s1 += s2
+    s1.genotypeStats shouldBe mutable.Map("1" -> mutable.Map(1 -> 1), "2" -> mutable.Map(2 -> 4))
+
+    s1 += s1
+    s1.genotypeStats shouldBe mutable.Map("1" -> mutable.Map(1 -> 2), "2" -> mutable.Map(2 -> 8))
+  }
+
+}