[test] Add test for WebsocketCollectImpl

collector/src/main/java/org/apache/hertzbeat/collector/collect/websocket/WebsocketCollectImpl.java

@@ -123,7 +123,7 @@ public String supportProtocol() {
         return DispatchConstants.PROTOCOL_WEBSOCKET;
     }
 
-    private static void send(OutputStream out, WebsocketProtocol websocketProtocol) throws IOException {
+    private void send(OutputStream out, WebsocketProtocol websocketProtocol) throws IOException {
         byte[] key = generateRandomKey();
         String base64Key = base64Encode(key);
         String requestLine = "GET " + websocketProtocol.getPath() + " HTTP/1.1\r\n";
@@ -141,7 +141,7 @@ private static void send(OutputStream out, WebsocketProtocol websocketProtocol)
     }
 
     // Read response headers
-    private static Map<String, String> readHeaders(InputStream in) throws IOException {
+    private Map<String, String> readHeaders(InputStream in) throws IOException {
 
         Map<String, String> map = new HashMap<>(8);
         BufferedReader reader = new BufferedReader(new InputStreamReader(in));
@@ -173,7 +173,7 @@ private static Map<String, String> readHeaders(InputStream in) throws IOExceptio
         return map;
     }
 
-    private static byte[] generateRandomKey() {
+    private byte[] generateRandomKey() {
         SecureRandom secureRandom = new SecureRandom();
         byte[] key = new byte[16];
         secureRandom.nextBytes(key);
@@ -186,7 +186,7 @@ private void checkParam(WebsocketProtocol protocol) {
         Assert.hasText(protocol.getPath(), "Websocket Protocol path is required.");
     }
 
-    private static String base64Encode(byte[] data) {
+    private String base64Encode(byte[] data) {
         return Base64.getEncoder().encodeToString(data);
     }
 }

collector/src/test/java/org/apache/hertzbeat/collector/collect/websocket/WebsocketCollectImplTest.java

@@ -0,0 +1,100 @@
+/*
+ * 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.hertzbeat.collector.collect.websocket;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.Socket;
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.hertzbeat.common.entity.job.Metrics;
+import org.apache.hertzbeat.common.entity.job.protocol.WebsocketProtocol;
+import org.apache.hertzbeat.common.entity.message.CollectRep;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.MockedConstruction;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+/**
+ * Test case for {@link WebsocketCollectImpl}
+ */
+@ExtendWith(MockitoExtension.class)
+class WebsocketCollectImplTest {
+
+    @InjectMocks
+    private WebsocketCollectImpl websocketCollectImpl;
+
+    @Test
+    void testCollect() {
+        CollectRep.MetricsData.Builder builder = CollectRep.MetricsData.newBuilder();
+        WebsocketProtocol websocketProtocol = WebsocketProtocol.builder()
+                .host("127.0.0.1")
+                .path("/")
+                .port("80")
+                .build();
+
+        String httpResponse = """
+                HTTP/1.1 200 OK\r
+                Content-Type: text/html; charset=UTF-8\r
+                Content-Length: 1234\r
+                Date: Sat, 4 May 2024 12:00:00 GMT\r
+                Connection: close\r
+                \r
+                """;
+        byte[] responseBytes = httpResponse.getBytes(StandardCharsets.UTF_8);
+        InputStream inputStream = new ByteArrayInputStream(responseBytes);
+
+        MockedConstruction<Socket> socketMockedConstruction =
+                Mockito.mockConstruction(Socket.class, (socket, context) -> {
+                    OutputStream out = Mockito.mock(OutputStream.class);
+                    Mockito.doNothing().when(socket).connect(Mockito.any(SocketAddress.class));
+                    Mockito.when(socket.isConnected()).thenReturn(true);
+                    Mockito.when(socket.getOutputStream()).thenReturn(out);
+                    Mockito.doNothing().when(out).write(Mockito.any());
+                    Mockito.doNothing().when(out).flush();
+                    Mockito.when(socket.getInputStream()).thenReturn(inputStream);
+
+                });
+
+
+        List<String> aliasField = new ArrayList<>();
+        aliasField.add("httpVersion");
+        aliasField.add("responseTime");
+        aliasField.add("responseCode");
+        Metrics metrics = new Metrics();
+        metrics.setWebsocket(websocketProtocol);
+        metrics.setAliasFields(aliasField);
+        websocketCollectImpl.collect(builder, 1L, "test", metrics);
+        assertEquals(builder.getValuesCount(), 1);
+        for (CollectRep.ValueRow valueRow : builder.getValuesList()) {
+            assertEquals(valueRow.getColumns(0), "HTTP/1.1");
+            assertNotNull(valueRow.getColumns(1));
+            assertEquals(valueRow.getColumns(2), "200");
+        }
+
+        socketMockedConstruction.close();
+    }
+
+}