Add unit tests for usbdk config flag

Author: kayahr

src/test/java/org/usb4java/javax/ConfigTest.java

@@ -6,6 +6,8 @@
 package org.usb4java.javax;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
 
 import java.util.Properties;
 
@@ -14,11 +16,11 @@
 
 /**
  * Tests the {@link Config} class.
- * 
+ *
  * @author Klaus Reimer (k@ailis.de)
  */
 public class ConfigTest
-{    
+{
     /**
      * Tests the default configuration
      */
@@ -29,8 +31,9 @@ public void testDefaultConfiguration()
         final Config config = new Config(properties);
         assertEquals(5000, config.getTimeout());
         assertEquals(500, config.getScanInterval());
+        assertFalse(config.isUseUSBDK());
     }
-    
+
     /**
      * Tests the scan interval configuration.
      */
@@ -42,7 +45,7 @@ public void testScanIntervalConfiguration()
         final Config config = new Config(properties);
         assertEquals(123, config.getScanInterval());
     }
-    
+
     /**
      * Tests the timeout configuration.
      */
@@ -54,4 +57,16 @@ public void testTimeoutConfiguration()
         final Config config = new Config(properties);
         assertEquals(1234, config.getTimeout());
     }
+
+    /**
+     * Tests the USBDK usage flag configuration.
+     */
+    @Test
+    public void testUseUSBDKConfiguration()
+    {
+        final Properties properties = new Properties();
+        properties.put("org.usb4java.javax.useUSBDK", "true");
+        final Config config = new Config(properties);
+        assertTrue(config.isUseUSBDK());
+    }
 }