diff --git a/contrib/platform/test/com/sun/jna/platform/win32/Kernel32Test.java b/contrib/platform/test/com/sun/jna/platform/win32/Kernel32Test.java
index d964c70de..877782886 100644
--- a/contrib/platform/test/com/sun/jna/platform/win32/Kernel32Test.java
+++ b/contrib/platform/test/com/sun/jna/platform/win32/Kernel32Test.java
@@ -2099,4 +2099,14 @@ public void testVirtualLockUnlock() {
         // Unlocking an unlocked region should fail
         assertFalse(Kernel32.INSTANCE.VirtualUnlock(mem, new SIZE_T(4096)));
     }
+
+    public void testSetPriorityClass() {
+        HANDLE selfHandle = Kernel32.INSTANCE.GetCurrentProcess();
+        assertTrue(Kernel32.INSTANCE.SetPriorityClass(selfHandle, Kernel32.HIGH_PRIORITY_CLASS);
+    }
+
+    public void testSetPriorityClass() {
+        HANDLE selfHandle = Kernel32.INSTANCE.GetCurrentThread();
+        assertTrue(Kernel32.INSTANCE.SetThreadPriority(selfHandle, Kernel32.THREAD_PRIORITY_ABOVE_NORMAL);
+    }
 }
diff --git a/contrib/platform/test/com/sun/jna/platform/win32/Kernel32UtilTest.java b/contrib/platform/test/com/sun/jna/platform/win32/Kernel32UtilTest.java
index cdb5c373f..66844a362 100644
--- a/contrib/platform/test/com/sun/jna/platform/win32/Kernel32UtilTest.java
+++ b/contrib/platform/test/com/sun/jna/platform/win32/Kernel32UtilTest.java
@@ -513,4 +513,38 @@ public void testGetLogicalProcessorInformationEx() {
             assertTrue(cache.associativity == WinNT.CACHE_FULLY_ASSOCIATIVE || cache.associativity > 0);
         }
     }
+
+    public void testSetCurrentProcessPriority() {
+        try {
+            Kernel32Util.setCurrentProcessPriority(Kernel32.HIGH_PRIORITY_CLASS);
+        } catch (Win32Exception e) {
+            fail("setCurrentProcessPriority() failed: " + e.getMessage());
+        }
+    }
+
+    public void testSetCurrentThreadPriority() {
+        try {
+            Kernel32Util.setCurrentThreadPriority(Kernel32.THREAD_PRIORITY_ABOVE_NORMAL);
+        } catch (Win32Exception e) {
+            fail("setCurrentThreadPriority() failed: " + e.getMessage());
+        }
+    }
+
+    public void testSetProcessPriority() {
+        final int pid = Kernel32.INSTANCE.GetCurrentProcessId();
+        try {
+            Kernel32Util.setProcessPriority(pid, Kernel32.HIGH_PRIORITY_CLASS);
+        } catch (Win32Exception e) {
+            fail("setProcessPriority() failed: " + e.getMessage());
+        }
+    }
+
+    public void testSetThreadPriority() {
+        final int tid = Kernel32.INSTANCE.GetCurrentThreadId();
+        try {
+            Kernel32Util.setThreadPriority(tid, Kernel32.HIGH_PRIORITY_CLASS);
+        } catch (Win32Exception e) {
+            fail("setThreadPriority() failed: " + e.getMessage());
+        }
+    }
 }