Wait one second between checks in swap test

services/git-bridge/src/test/java/uk/ac/ic/wlgitbridge/bridge/swap/job/SwapJobImplTest.java

@@ -83,13 +83,17 @@ public class SwapJobImplTest {
         }
     }
 
+    private void waitASecond() {
+        try { Thread.sleep(1 * 1000); } catch (Exception _e) {}
+    }
+
     @Test
     public void startingTimerAlwaysCausesASwap() {
         swapJob.lowWatermarkBytes = 16384;
         swapJob.interval = Duration.ofHours(1);
         assertEquals(0, swapJob.swaps.get());
         swapJob.start();
-        while (swapJob.swaps.get() <= 0);
+        do { waitASecond(); } while (swapJob.swaps.get() <= 0);
         assertTrue(swapJob.swaps.get() > 0);
     }
 
@@ -98,7 +102,7 @@ public class SwapJobImplTest {
         swapJob.lowWatermarkBytes = 16384;
         assertEquals(0, swapJob.swaps.get());
         swapJob.start();
-        while (swapJob.swaps.get() <= 1);
+        do { waitASecond(); } while (swapJob.swaps.get() <= 1);
         assertTrue(swapJob.swaps.get() > 1);
     }
 
@@ -107,7 +111,7 @@ public class SwapJobImplTest {
         swapJob.highWatermarkBytes = 65536;
         assertEquals(2, dbStore.getNumUnswappedProjects());
         swapJob.start();
-        while (swapJob.swaps.get() < 1);
+        do { waitASecond(); } while (swapJob.swaps.get() < 1);
         assertEquals(2, dbStore.getNumUnswappedProjects());
     }
 
@@ -118,14 +122,14 @@ public class SwapJobImplTest {
         assertEquals(2, dbStore.getNumUnswappedProjects());
         assertEquals("proj2", dbStore.getOldestUnswappedProject());
         swapJob.start();
-        while (swapJob.swaps.get() < 1);
+        do { waitASecond(); } while (swapJob.swaps.get() < 1);
         assertEquals(1, dbStore.getNumUnswappedProjects());
         assertEquals("proj1", dbStore.getOldestUnswappedProject());
         assertEquals("bzip2", dbStore.getSwapCompression("proj2"));
         swapJob.restore("proj2");
         assertEquals(null, dbStore.getSwapCompression("proj2"));
         int numSwaps = swapJob.swaps.get();
-        while (swapJob.swaps.get() <= numSwaps);
+        do { waitASecond(); } while (swapJob.swaps.get() <= numSwaps);
         assertEquals(1, dbStore.getNumUnswappedProjects());
         assertEquals("proj2", dbStore.getOldestUnswappedProject());
     }
@@ -147,14 +151,14 @@ public class SwapJobImplTest {
         assertEquals(2, dbStore.getNumUnswappedProjects());
         assertEquals("proj2", dbStore.getOldestUnswappedProject());
         swapJob.start();
-        while (swapJob.swaps.get() < 1);
+        do { waitASecond(); } while (swapJob.swaps.get() < 1);
         assertEquals(1, dbStore.getNumUnswappedProjects());
         assertEquals("proj1", dbStore.getOldestUnswappedProject());
         assertEquals("gzip", dbStore.getSwapCompression("proj2"));
         swapJob.restore("proj2");
         assertEquals(null, dbStore.getSwapCompression("proj2"));
         int numSwaps = swapJob.swaps.get();
-        while (swapJob.swaps.get() <= numSwaps);
+        do { waitASecond(); } while (swapJob.swaps.get() <= numSwaps);
         assertEquals(1, dbStore.getNumUnswappedProjects());
         assertEquals("proj2", dbStore.getOldestUnswappedProject());
     }