Add a suite for the Dataset stuff, there isn't much in their yet but

Author: holdenk

src/test/scala/com/high-performance-spark-examples/dataframe/MixedDatasetSuite.scala

@@ -0,0 +1,33 @@
+/**
+ * Checks basic Dataset magics
+ */
+package com.highperformancespark.examples.dataframe
+
+import com.highperformancespark.examples.dataframe.HappyPandas.{PandaInfo, Pandas}
+import com.holdenkarau.spark.testing._
+import org.apache.spark.sql.types._
+import org.apache.spark.sql.{DataFrame, Row, SQLContext}
+import org.scalatest.Matchers._
+import org.scalatest.FunSuite
+
+import scala.collection.mutable
+import scala.util.Random
+
+class HappyPandasTest extends FunSuite with DataFrameSuiteBase {
+
+  val rawPandaList = List(
+    RawPanda(10L, "94110", "giant", true, Array(1.0, 0.9)),
+    RawPanda(11L, "94110", "red", true, Array(1.0, 0.9)))
+
+  val mixedDS = MixedDataset(sqlContext)
+
+  test("happy panda sums") {
+    val sqlCtx = sqlContext
+    import sqlCtx.implicits._
+    val inputDF = sqlCtx.createDataFrame(rawPandaList)
+    val inputDS = inputDF.as[RawPanda]
+    val result = mixedDS.happyPandaSums(inputDS)
+    assert(result === (2.0 +- 0.001))
+  }
+
+}