diff --git a/shenyu-web/src/test/java/org/apache/shenyu/web/filter/CollapseSlashesFilterTest.java b/shenyu-web/src/test/java/org/apache/shenyu/web/filter/CollapseSlashesFilterTest.java
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+++ b/shenyu-web/src/test/java/org/apache/shenyu/web/filter/CollapseSlashesFilterTest.java
@@ -0,0 +1,55 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.shenyu.web.filter;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.mock.http.server.reactive.MockServerHttpRequest;
+import org.springframework.mock.web.server.MockServerWebExchange;
+import org.springframework.web.server.ServerWebExchange;
+import org.springframework.web.server.WebFilterChain;
+import reactor.core.publisher.Mono;
+import reactor.test.StepVerifier;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+/**
+ * test case for {@link CollapseSlashesFilter}.
+ */
+public final class CollapseSlashesFilterTest {
+
+    private CollapseSlashesFilter collapseSlashesFilter;
+
+    private WebFilterChain webFilterChain;
+
+    @BeforeEach
+    public void setUp() {
+        webFilterChain = mock(WebFilterChain.class);
+        collapseSlashesFilter = new CollapseSlashesFilter();
+        when(webFilterChain.filter(any())).thenReturn(Mono.empty());
+    }
+
+    @Test
+    public void filter() {
+        ServerWebExchange webExchange = MockServerWebExchange.from(MockServerHttpRequest.post("http://localhost:8080///////test"));
+        Mono<Void> filter = collapseSlashesFilter.filter(webExchange, webFilterChain);
+        StepVerifier.create(filter).verifyComplete();
+    }
+}
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