Add error message as to why the test cannot be run.

peter-lawrey · peter-lawrey · commit 5adcc5061bb6 · 2012-01-13T08:13:33.000Z
diff --git a/src/test/java/vanilla/java/affinity/AffinityLockTest.java b/src/test/java/vanilla/java/affinity/AffinityLockTest.java
@@ -61,6 +61,12 @@ public void dumpLocks() {
 
     @Test
     public void assignReleaseThread() {
+        if (AffinityLock.RESERVED_AFFINITY == 0) {
+            System.out.println("Cannot run affinity test as no threads gave been reserved.");
+            System.out.println("Use isocpus= in grub.conf or use -D" + AffinityLock.AFFINITY_RESERVED + "={hex mask}");
+            return;
+        }
+
         assertEquals(AffinityLock.BASE_AFFINITY, AffinitySupport.getAffinity());
         AffinityLock al = AffinityLock.acquireLock();
         assertEquals(1, Long.bitCount(AffinitySupport.getAffinity()));
