1 files changed, 29 insertions, 0 deletions
diff --git a/config-lib/src/test/java/com/yahoo/config/ModelNodeTest.java b/config-lib/src/test/java/com/yahoo/config/ModelNodeTest.java
new file mode 100644
index 00000000000..696e0722714
--- /dev/null
+++ b/config-lib/src/test/java/com/yahoo/config/ModelNodeTest.java
@@ -0,0 +1,29 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.config;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.Optional;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+/**
+ * @author bratseth
+ */
+public class ModelNodeTest {
+
+    @Test
+    void testEmpty() {
+        assertEquals("(null)", new ModelNode().toString());
+    }
+
+    @Test
+    void testReference() {
+        var reference = new ModelReference(Optional.of("myModelId"),
+                                           Optional.of(new UrlReference("https://host:my/path")),
+                                           Optional.of(new FileReference("foo.txt")));
+        assertEquals("myModelId https://host:my/path foo.txt", reference.toString());
+        assertEquals(reference, ModelReference.valueOf(reference.toString()));
+    }
+
+}