Add test for mixed tensor as scalar

1 files changed, 7 insertions, 0 deletions

diff --git a/vespajlib/src/test/java/com/yahoo/tensor/MixedTensorTestCase.java b/vespajlib/src/test/java/com/yahoo/tensor/MixedTensorTestCase.java
index 7feb719696e..fef8f05f4e1 100644
--- a/vespajlib/src/test/java/com/yahoo/tensor/MixedTensorTestCase.java
+++ b/vespajlib/src/test/java/com/yahoo/tensor/MixedTensorTestCase.java
@@ -26,6 +26,13 @@ public class MixedTensorTestCase {
     }
 
     @Test
+    public void testScalar() {
+        TensorType type = new TensorType.Builder().build();
+        Tensor scalar = MixedTensor.Builder.of(type).cell().value(42.0).build();
+        assertEquals(scalar.asDouble(), 42.0, 1e-6);
+    }
+
+    @Test
     public void testOneIndexedBuilding() {
         TensorType type = new TensorType.Builder().indexed("y", 3).build();
         Tensor tensor = MixedTensor.Builder.of(type).