diff --git a/dubbo-rpc/dubbo-rpc-api/src/test/java/org/apache/dubbo/rpc/filter/tps/DefaultTPSLimiterTest.java b/dubbo-rpc/dubbo-rpc-api/src/test/java/org/apache/dubbo/rpc/filter/tps/DefaultTPSLimiterTest.java
index 6633f587a9c9..046cfd7cce91 100644
--- a/dubbo-rpc/dubbo-rpc-api/src/test/java/org/apache/dubbo/rpc/filter/tps/DefaultTPSLimiterTest.java
+++ b/dubbo-rpc/dubbo-rpc-api/src/test/java/org/apache/dubbo/rpc/filter/tps/DefaultTPSLimiterTest.java
@@ -29,6 +29,7 @@
 
 public class DefaultTPSLimiterTest {
 
+    private static final int TEST_LIMIT_RATE = 2;
     private DefaultTPSLimiter defaultTPSLimiter = new DefaultTPSLimiter();
 
     @Test
@@ -36,9 +37,9 @@ public void testIsAllowable() throws Exception {
         Invocation invocation = new MockInvocation();
         URL url = URL.valueOf("test://test");
         url = url.addParameter(INTERFACE_KEY, "org.apache.dubbo.rpc.file.TpsService");
-        url = url.addParameter(TPS_LIMIT_RATE_KEY, 2);
+        url = url.addParameter(TPS_LIMIT_RATE_KEY, TEST_LIMIT_RATE);
         url = url.addParameter(TPS_LIMIT_INTERVAL_KEY, 1000);
-        for (int i = 0; i < 3; i++) {
+        for (int i = 1; i <= TEST_LIMIT_RATE; i++) {
             Assertions.assertTrue(defaultTPSLimiter.isAllowable(url, invocation));
         }
     }
@@ -48,10 +49,10 @@ public void testIsNotAllowable() throws Exception {
         Invocation invocation = new MockInvocation();
         URL url = URL.valueOf("test://test");
         url = url.addParameter(INTERFACE_KEY, "org.apache.dubbo.rpc.file.TpsService");
-        url = url.addParameter(TPS_LIMIT_RATE_KEY, 2);
+        url = url.addParameter(TPS_LIMIT_RATE_KEY, TEST_LIMIT_RATE);
         url = url.addParameter(TPS_LIMIT_INTERVAL_KEY, 1000);
-        for (int i = 0; i < 4; i++) {
-            if (i == 3) {
+        for (int i = 1; i <= TEST_LIMIT_RATE + 1; i++) {
+            if (i == TEST_LIMIT_RATE + 1) {
                 Assertions.assertFalse(defaultTPSLimiter.isAllowable(url, invocation));
             } else {
                 Assertions.assertTrue(defaultTPSLimiter.isAllowable(url, invocation));
@@ -65,14 +66,17 @@ public void testConfigChange() throws Exception {
         Invocation invocation = new MockInvocation();
         URL url = URL.valueOf("test://test");
         url = url.addParameter(INTERFACE_KEY, "org.apache.dubbo.rpc.file.TpsService");
-        url = url.addParameter(TPS_LIMIT_RATE_KEY, 2);
+        url = url.addParameter(TPS_LIMIT_RATE_KEY, TEST_LIMIT_RATE);
         url = url.addParameter(TPS_LIMIT_INTERVAL_KEY, 1000);
-        for (int i = 0; i < 3; i++) {
+        for (int i = 1; i <= 2; i++) {
             Assertions.assertTrue(defaultTPSLimiter.isAllowable(url, invocation));
         }
-        url = url.addParameter(TPS_LIMIT_RATE_KEY, 2000);
-        for (int i = 0; i < 3; i++) {
+        final int tenTimesLimitRate = TEST_LIMIT_RATE * 10;
+        url = url.addParameter(TPS_LIMIT_RATE_KEY, tenTimesLimitRate);
+        for (int i = 1; i <= tenTimesLimitRate; i++) {
             Assertions.assertTrue(defaultTPSLimiter.isAllowable(url, invocation));
         }
+        
+        Assertions.assertFalse(defaultTPSLimiter.isAllowable(url, invocation));
     }
 }