1 files changed, 33 insertions, 0 deletions
diff --git a/searchlib/src/test/java/com/yahoo/searchlib/rankingexpression/ReferenceTestCase.java b/searchlib/src/test/java/com/yahoo/searchlib/rankingexpression/ReferenceTestCase.java
new file mode 100644
index 00000000000..f275f95ca8e
--- /dev/null
+++ b/searchlib/src/test/java/com/yahoo/searchlib/rankingexpression/ReferenceTestCase.java
@@ -0,0 +1,33 @@
+package com.yahoo.searchlib.rankingexpression;
+
+import com.yahoo.searchlib.rankingexpression.rule.Arguments;
+import com.yahoo.searchlib.rankingexpression.rule.NameNode;
+import com.yahoo.searchlib.rankingexpression.rule.ReferenceNode;
+import org.junit.Test;
+
+import static junit.framework.TestCase.assertTrue;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+/**
+ * @author bratseth
+ */
+public class ReferenceTestCase {
+
+    @Test
+    public void testSimple() {
+        assertTrue(new Reference("foo", new Arguments(new ReferenceNode("arg")), null).isSimple());
+        assertTrue(new Reference("foo", new Arguments(new ReferenceNode("arg")), "out").isSimple());
+        assertTrue(new Reference("foo", new Arguments(new NameNode("arg")), "out").isSimple());
+        assertFalse(new Reference("foo", new Arguments(), null).isSimple());
+    }
+
+    @Test
+    public void testToString() {
+        assertEquals("foo(arg_1)", new Reference("foo", new Arguments(new ReferenceNode("arg_1")), null).toString());
+        assertEquals("foo(arg_1).out", new Reference("foo", new Arguments(new ReferenceNode("arg_1")), "out").toString());
+        assertEquals("foo(arg_1).out", new Reference("foo", new Arguments(new NameNode("arg_1")), "out").toString());
+        assertEquals("foo", new Reference("foo", new Arguments(), null).toString());
+    }
+
+}