From e285eedb7cd7105d7157b183c949ed11e0db7061 Mon Sep 17 00:00:00 2001
From: Klaus Reimer <k@ailis.de>
Date: Thu, 18 Apr 2013 21:05:20 +0200
Subject: [PATCH] Ensure that DescriptorUtils has a private constructor

---
 .../usb4java/utils/DescriptorUtilsTest.java      | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/test/java/de/ailis/usb4java/utils/DescriptorUtilsTest.java b/src/test/java/de/ailis/usb4java/utils/DescriptorUtilsTest.java
index 5928ed6..14dacfe 100644
--- a/src/test/java/de/ailis/usb4java/utils/DescriptorUtilsTest.java
+++ b/src/test/java/de/ailis/usb4java/utils/DescriptorUtilsTest.java
@@ -7,6 +7,7 @@ package de.ailis.usb4java.utils;
 
 import static org.junit.Assert.assertEquals;
 
+import java.lang.reflect.Constructor;
 import java.nio.ByteBuffer;
 
 import org.junit.Test;
@@ -173,4 +174,19 @@ public class DescriptorUtilsTest
             DescriptorUtils.dump(new SimpleUsbEndpointDescriptor((byte) 0,
                 (byte) 1, (byte) 2, (byte) 3, (byte) 4, (byte) 5)));
     }
+
+    /**
+     * Ensure constructor is private.
+     * 
+     * @throws Exception
+     *             When constructor test fails.
+     */
+    @Test
+    public void testPrivateConstructor() throws Exception
+    {
+        assertEquals(0, DescriptorUtils.class.getConstructors().length);
+        Constructor<?> c = DescriptorUtils.class.getDeclaredConstructor();
+        c.setAccessible(true);
+        c.newInstance();
+    }
 }