[fix][test] Fix ResourceQuotaCalculatorImplTest#testNeedToReportLocalUsage (#25247)

Author: BewareMyPower

pulsar-broker/src/test/java/org/apache/pulsar/broker/resourcegroup/ResourceQuotaCalculatorImplTest.java

@@ -113,6 +113,9 @@ public void testRQCalcGlobUsedZeroTest() throws PulsarAdminException {
 
     @Test
     public void testNeedToReportLocalUsage() {
+        // This field is 0 when the schedulers of `ResourceGroupService` are not started, then `needToReportLocalUsage`
+        // will always return true. Set it to a non-zero value to test the percentage change logic.
+        ResourceGroupService.maxIntervalForSuppressingReportsMSecs = 60 * 1000L; // 1 minute
         // If the percentage change (increase or decrease) in usage is more than 5% for
         // either bytes or messages, send a report.
         Assert.assertFalse(rqCalc.needToReportLocalUsage(1040, 1000, 104, 100, System.currentTimeMillis()));
@@ -122,4 +125,4 @@ public void testNeedToReportLocalUsage() {
     }
 
     private ResourceQuotaCalculatorImpl rqCalc;
-}
+}