2 files changed, 28 insertions, 0 deletions
diff --git a/container-search/src/test/java/com/yahoo/search/query/QueryTreeTest.java b/container-search/src/test/java/com/yahoo/search/query/QueryTreeTest.java
new file mode 100644
index 00000000000..f929e54fd2d
--- /dev/null
+++ b/container-search/src/test/java/com/yahoo/search/query/QueryTreeTest.java
@@ -0,0 +1,26 @@
+// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.search.query;
+
+import com.yahoo.prelude.query.NotItem;
+import com.yahoo.prelude.query.WordItem;
+import org.junit.Assert;
+import org.junit.Test;
+import static org.junit.Assert.assertEquals;
+
+/**
+ * @author bratseth
+ */
+public class QueryTreeTest {
+
+    @Test
+    public void testAddQueryItemWithRoot() {
+        Assert.assertEquals("AND a b",
+                            new QueryTree(new WordItem("a")).and(new WordItem("b")).toString());
+
+        NotItem not = new NotItem();
+        not.addNegativeItem(new WordItem("b"));
+        assertEquals("+a -b",
+                     new QueryTree(new WordItem("a")).and(not).toString());
+     }
+
+}
diff --git a/container-search/src/test/java/com/yahoo/search/querytransform/TestUtils.java b/container-search/src/test/java/com/yahoo/search/querytransform/TestUtils.java
index c7a44e8aceb..720dcd0c4bc 100644
--- a/container-search/src/test/java/com/yahoo/search/querytransform/TestUtils.java
+++ b/container-search/src/test/java/com/yahoo/search/querytransform/TestUtils.java
@@ -6,7 +6,9 @@ import com.yahoo.prelude.query.Item;
 import com.yahoo.search.Result;
 
 public class TestUtils {
+
     public static Item getQueryTreeRoot(Result result) {
         return result.getQuery().getModel().getQueryTree().getRoot();
     }
+
 }