LUCENE-8402: Remove invalid identityHashCode assertions in TestPriorityQueue.

lucene/core/src/test/org/apache/lucene/util/TestPriorityQueue.java

@@ -32,13 +32,6 @@ public class TestPriorityQueue extends LuceneTestCase {
 
     @Override
     protected boolean lessThan(Integer a, Integer b) {
-      if (a.equals(b)) {
-        assert (a != b);
-        int hashA = System.identityHashCode(a);
-        int hashB = System.identityHashCode(b);
-        assert (hashA != hashB);
-        return hashA < hashB;
-      }
       return (a < b);
     }
 
@@ -47,93 +40,91 @@ public class TestPriorityQueue extends LuceneTestCase {
       for (int i = 1; i <= size(); i++) {
         int parent = i >>> 1;
         if (parent > 1) {
-          assertTrue(lessThan((Integer) heapArray[parent],
-              (Integer) heapArray[i]));
+          if (lessThan((Integer) heapArray[parent], (Integer) heapArray[i]) == false) {
+            assertEquals(heapArray[parent], heapArray[i]);
+          }
         }
       }
     }
-
   }
 
-    public void testPQ() throws Exception {
-        testPQ(atLeast(10000), random());
+  public void testPQ() throws Exception {
+    testPQ(atLeast(10000), random());
+  }
+
+  public static void testPQ(int count, Random gen) {
+    PriorityQueue<Integer> pq = new IntegerQueue(count);
+    int sum = 0, sum2 = 0;
+
+    for (int i = 0; i < count; i++) {
+      int next = gen.nextInt();
+      sum += next;
+      pq.add(next);
     }
 
-    public static void testPQ(int count, Random gen) {
-        PriorityQueue<Integer> pq = new IntegerQueue(count);
-        int sum = 0, sum2 = 0;
+    //      Date end = new Date();
 
-        for (int i = 0; i < count; i++)
-        {
-            int next = gen.nextInt();
-            sum += next;
-            pq.add(next);
-        }
+    //      System.out.print(((float)(end.getTime()-start.getTime()) / count) * 1000);
+    //      System.out.println(" microseconds/put");
 
-        //      Date end = new Date();
+    //      start = new Date();
 
-        //      System.out.print(((float)(end.getTime()-start.getTime()) / count) * 1000);
-        //      System.out.println(" microseconds/put");
-
-        //      start = new Date();
-
-        int last = Integer.MIN_VALUE;
-        for (int i = 0; i < count; i++)
-        {
-            Integer next = pq.pop();
-            assertTrue(next.intValue() >= last);
-            last = next.intValue();
-            sum2 += last;
-        }
-
-        assertEquals(sum, sum2);
-        //      end = new Date();
-
-        //      System.out.print(((float)(end.getTime()-start.getTime()) / count) * 1000);
-        //      System.out.println(" microseconds/pop");
+    int last = Integer.MIN_VALUE;
+    for (int i = 0; i < count; i++) {
+      Integer next = pq.pop();
+      assertTrue(next.intValue() >= last);
+      last = next.intValue();
+      sum2 += last;
     }
 
-    public void testClear() {
-        PriorityQueue<Integer> pq = new IntegerQueue(3);
-        pq.add(2);
-        pq.add(3);
-        pq.add(1);
-        assertEquals(3, pq.size());
-        pq.clear();
-        assertEquals(0, pq.size());
-    }
-    
-    public void testFixedSize() {
-        PriorityQueue<Integer> pq = new IntegerQueue(3);
-        pq.insertWithOverflow(2);
-        pq.insertWithOverflow(3);
-        pq.insertWithOverflow(1);
-        pq.insertWithOverflow(5);
-        pq.insertWithOverflow(7);
-        pq.insertWithOverflow(1);
-        assertEquals(3, pq.size());
-        assertEquals((Integer) 3, pq.top());
-    }
-    
-    public void testInsertWithOverflow() {
-      int size = 4;
-      PriorityQueue<Integer> pq = new IntegerQueue(size);
-      Integer i1 = 2;
-      Integer i2 = 3;
-      Integer i3 = 1;
-      Integer i4 = 5;
-      Integer i5 = 7;
-      Integer i6 = 1;
-      
-      assertNull(pq.insertWithOverflow(i1));
-      assertNull(pq.insertWithOverflow(i2));
-      assertNull(pq.insertWithOverflow(i3));
-      assertNull(pq.insertWithOverflow(i4));
-      assertTrue(pq.insertWithOverflow(i5) == i3); // i3 should have been dropped
-      assertTrue(pq.insertWithOverflow(i6) == i6); // i6 should not have been inserted
-      assertEquals(size, pq.size());
-      assertEquals((Integer) 2, pq.top());
-    }
+    assertEquals(sum, sum2);
+    //      end = new Date();
+
+    //      System.out.print(((float)(end.getTime()-start.getTime()) / count) * 1000);
+    //      System.out.println(" microseconds/pop");
+  }
+
+  public void testClear() {
+    PriorityQueue<Integer> pq = new IntegerQueue(3);
+    pq.add(2);
+    pq.add(3);
+    pq.add(1);
+    assertEquals(3, pq.size());
+    pq.clear();
+    assertEquals(0, pq.size());
+  }
+
+  public void testFixedSize() {
+    PriorityQueue<Integer> pq = new IntegerQueue(3);
+    pq.insertWithOverflow(2);
+    pq.insertWithOverflow(3);
+    pq.insertWithOverflow(1);
+    pq.insertWithOverflow(5);
+    pq.insertWithOverflow(7);
+    pq.insertWithOverflow(1);
+    assertEquals(3, pq.size());
+    assertEquals((Integer) 3, pq.top());
+  }
+
+  public void testInsertWithOverflow() {
+    int size = 4;
+    PriorityQueue<Integer> pq = new IntegerQueue(size);
+    Integer i1 = 2;
+    Integer i2 = 3;
+    Integer i3 = 1;
+    Integer i4 = 5;
+    Integer i5 = 7;
+    Integer i6 = 1;
+
+    assertNull(pq.insertWithOverflow(i1));
+    assertNull(pq.insertWithOverflow(i2));
+    assertNull(pq.insertWithOverflow(i3));
+    assertNull(pq.insertWithOverflow(i4));
+    assertTrue(pq.insertWithOverflow(i5) == i3); // i3 should have been dropped
+    assertTrue(pq.insertWithOverflow(i6) == i6); // i6 should not have been inserted
+    assertEquals(size, pq.size());
+    assertEquals((Integer) 2, pq.top());
+  }
 
   public void testRemovalsAndInsertions() {
     Random random = random();
@@ -193,14 +184,14 @@ public class TestPriorityQueue extends LuceneTestCase {
 
   public void testIteratorEmpty() {
     IntegerQueue queue = new IntegerQueue(3);
-    
+
     Iterator<Integer> it = queue.iterator();
     assertFalse(it.hasNext());
     expectThrows(NoSuchElementException.class, () -> {
       it.next();
     });
   }
-  
+
   public void testIteratorOne() {
     IntegerQueue queue = new IntegerQueue(3);
 
@@ -213,7 +204,7 @@ public class TestPriorityQueue extends LuceneTestCase {
       it.next();
     });
   }
-  
+
   public void testIteratorTwo() {
     IntegerQueue queue = new IntegerQueue(3);
 
@@ -230,7 +221,6 @@ public class TestPriorityQueue extends LuceneTestCase {
     });
   }
 
-  @AwaitsFix(bugUrl="https://issues.apache.org/jira/browse/LUCENE-8402")
   public void testIteratorRandom() {
     final int maxSize = TestUtil.nextInt(random(), 1, 20);
     IntegerQueue queue = new IntegerQueue(maxSize);
@@ -256,13 +246,13 @@ public class TestPriorityQueue extends LuceneTestCase {
 
   public void testMaxIntSize() {
     expectThrows(IllegalArgumentException.class, () -> {
-        new PriorityQueue<Boolean>(Integer.MAX_VALUE) {
-          @Override
-          public boolean lessThan(Boolean a, Boolean b) {
-            // uncalled
-            return true;
-          }
-        };
-      });
+      new PriorityQueue<Boolean>(Integer.MAX_VALUE) {
+        @Override
+        public boolean lessThan(Boolean a, Boolean b) {
+          // uncalled
+          return true;
+        }
+      };
+    });
   }
 }