diff --git a/pkg/wasm/main_test.go b/pkg/wasm/main_test.go
index 403d1a3..4fd4ab6 100644
--- a/pkg/wasm/main_test.go
+++ b/pkg/wasm/main_test.go
@@ -56,8 +56,8 @@ func TestZedCommand(t *testing.T) {
 	require.NoError(t, err)
 
 	require.Contains(t, updatedContext.Schema, "definition document")
-	require.Equal(t, `document:first#viewer@user:fred[somecaveat:{"somecondition":42}]`, stringifyTuple(updatedContext.Relationships[0]))
-	require.Equal(t, "document:first#viewer@user:tom", stringifyTuple(updatedContext.Relationships[1]))
+	require.Equal(t, `document:first#viewer@user:fred[somecaveat:{"somecondition":42}]`, tuple.MustCoreRelationToString(updatedContext.Relationships[0]))
+	require.Equal(t, "document:first#viewer@user:tom", tuple.MustCoreRelationToString(updatedContext.Relationships[1]))
 	require.Len(t, updatedContext.Relationships, 2)
 
 	// Run the actual command.
@@ -69,9 +69,3 @@ func TestZedCommand(t *testing.T) {
 	require.NoError(t, err)
 	require.Len(t, updatedContext.Relationships, 3)
 }
-
-// NOTE: this is required to preserve caveat context.
-// tuple.CoreRelationToString elides the caveat context.
-func stringifyTuple(relationtuple *v1.RelationTuple) string {
-	return tuple.MustString(tuple.FromCoreRelationTuple(relationtuple))
-}