loco test bug fix

core/src/test/scala/com/salesforce/op/stages/impl/insights/RecordInsightsLOCOTest.scala

@@ -233,8 +233,8 @@ class RecordInsightsLOCOTest extends FunSpec with TestSparkContext with RecordIn
       info("Each feature vector should only have either three or four non-zero entries. One each from country and " +
         "picklist, while currency can have either two (if it's null the currency column will be filled with the mean)" +
         " or just one if it's not null.")
-      it("should pick between 1 and 4 of the features") {
-        all(parsed.map(_.size)) should (be >= 1 and be <= 4)
+      it("should pick between 0 and 4 features") {
+        all(parsed.map(_.size)) should (be >= 0 and be <= 4)
       }
 
       // Grab the feature vector metadata for comparison against the LOCO record insights