1 files changed, 9 insertions, 0 deletions
diff --git a/scalding/src/test/scala/sandcrawler/HBaseCrossrefScoreTest.scala b/scalding/src/test/scala/sandcrawler/HBaseCrossrefScoreTest.scala
index e6211a2..e4cab95 100644
--- a/scalding/src/test/scala/sandcrawler/HBaseCrossrefScoreTest.scala
+++ b/scalding/src/test/scala/sandcrawler/HBaseCrossrefScoreTest.scala
@@ -126,6 +126,10 @@ class HBaseCrossrefScoreTest extends FlatSpec with Matchers {
     slug should contain ("hello there")
   }
 
+  it should "return None if given empty string" in {
+    HBaseCrossrefScore.titleToSlug("") shouldBe None
+  }
+
   "grobidToSlug()" should "get the right slug for a grobid json string" in {
     val slug = HBaseCrossrefScore.grobidToSlug(GrobidStringWithTitle)
     slug should contain ("dummy example file")
@@ -141,6 +145,11 @@ class HBaseCrossrefScoreTest extends FlatSpec with Matchers {
     slug shouldBe None
   }
 
+  it should "return None if given an empty json string" in {
+    val slug = HBaseCrossrefScore.grobidToSlug("")
+    slug shouldBe None
+  }
+
   "crossrefToSlug()" should "get the right slug for a crossref json string" in {
     val slug = HBaseCrossrefScore.crossrefToSlug(CrossrefStringWithTitle)
     slug should contain ("sometitle")