1 files changed, 40 insertions, 0 deletions
diff --git a/vespajlib/src/test/java/com/yahoo/io/HexDumpTestCase.java b/vespajlib/src/test/java/com/yahoo/io/HexDumpTestCase.java
new file mode 100644
index 00000000000..940f0150540
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+++ b/vespajlib/src/test/java/com/yahoo/io/HexDumpTestCase.java
@@ -0,0 +1,40 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.io;
+
+import org.junit.Test;
+
+import com.yahoo.text.Utf8;
+
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import java.io.UnsupportedEncodingException;
+import java.nio.ByteBuffer;
+import java.nio.charset.Charset;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+
+/**
+ * @author <a href="mailto:simon@yahoo-inc.com">Simon Thoresen Hult</a>
+ * @author <a href="mailto:steinar@yahoo-inc.com">Steinar Knutsen</a>
+ */
+public class HexDumpTestCase {
+
+    private static final Charset UTF8 = Charset.forName("UTF-8");
+    private static final Charset UTF16 = Charset.forName("UTF-16");
+
+    @Test
+    public void requireThatToHexStringAcceptsNull() {
+        assertNull(HexDump.toHexString(null));
+    }
+
+    @Test
+    public void requireThatToHexStringIsUnformatted() {
+        assertEquals("6162636465666768696A6B6C6D6E6F707172737475767778797A",
+                     HexDump.toHexString("abcdefghijklmnopqrstuvwxyz".getBytes(UTF8)));
+        assertEquals("FEFF006100620063006400650066006700680069006A006B006C00" +
+                     "6D006E006F0070007100720073007400750076007700780079007A",
+                     HexDump.toHexString("abcdefghijklmnopqrstuvwxyz".getBytes(UTF16)));
+    }
+
+}