fix(test): optimize unit test

framework/src/main/java/org/tron/common/client/DatabaseGrpcClient.java

@@ -15,14 +15,14 @@ public class DatabaseGrpcClient {
 
   public DatabaseGrpcClient(String host, int port) {
     channel = ManagedChannelBuilder.forAddress(host, port)
-        .usePlaintext(true)
+        .usePlaintext()
         .build();
     databaseBlockingStub = DatabaseGrpc.newBlockingStub(channel);
   }
 
   public DatabaseGrpcClient(String host) {
     channel = ManagedChannelBuilder.forTarget(host)
-        .usePlaintext(true)
+        .usePlaintext()
         .build();
     databaseBlockingStub = DatabaseGrpc.newBlockingStub(channel);
   }

framework/src/main/java/org/tron/common/client/WalletGrpcClient.java

@@ -29,14 +29,14 @@ public class WalletGrpcClient {
 
   public WalletGrpcClient(String host, int port) {
     channel = ManagedChannelBuilder.forAddress(host, port)
-        .usePlaintext(true)
+        .usePlaintext()
         .build();
     walletBlockingStub = WalletGrpc.newBlockingStub(channel);
   }
 
   public WalletGrpcClient(String host) {
     channel = ManagedChannelBuilder.forTarget(host)
-        .usePlaintext(true)
+        .usePlaintext()
         .build();
     walletBlockingStub = WalletGrpc.newBlockingStub(channel);
   }

framework/src/main/java/org/tron/program/SolidityNode.java

@@ -7,6 +7,7 @@
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.BooleanUtils;
 import org.springframework.context.ApplicationContext;
+import org.springframework.util.ObjectUtils;
 import org.springframework.util.StringUtils;
 import org.tron.common.application.Application;
 import org.tron.common.application.ApplicationFactory;
@@ -37,7 +38,7 @@ public class SolidityNode {
 
   private AtomicLong remoteBlockNum = new AtomicLong();
 
-  private LinkedBlockingDeque<Block> blockQueue = new LinkedBlockingDeque(100);
+  private LinkedBlockingDeque<Block> blockQueue = new LinkedBlockingDeque<>(100);
 
   private int exceptionSleepTime = 1000;
 
@@ -48,7 +49,7 @@ public SolidityNode(Manager dbManager) {
     this.chainBaseManager = dbManager.getChainBaseManager();
     resolveCompatibilityIssueIfUsingFullNodeDatabase();
     ID.set(chainBaseManager.getDynamicPropertiesStore().getLatestSolidifiedBlockNum());
-    databaseGrpcClient = new DatabaseGrpcClient(Args.getInstance().getTrustNodeAddr());
+    databaseGrpcClient = new DatabaseGrpcClient(CommonParameter.getInstance().getTrustNodeAddr());
     remoteBlockNum.set(getLastSolidityBlockNum());
   }
 
@@ -58,13 +59,13 @@ public SolidityNode(Manager dbManager) {
   public static void main(String[] args) {
     logger.info("Solidity node is running.");
     Args.setParam(args, Constant.TESTNET_CONF);
-    CommonParameter parameter = Args.getInstance();
+    CommonParameter parameter = CommonParameter.getInstance();
 
     logger.info("index switch is {}",
         BooleanUtils.toStringOnOff(BooleanUtils
             .toBoolean(parameter.getStorage().getIndexSwitch())));
 
-    if (StringUtils.isEmpty(parameter.getTrustNodeAddr())) {
+    if (ObjectUtils.isEmpty(parameter.getTrustNodeAddr())) {
       logger.error("Trust node is not set.");
       return;
     }
@@ -102,13 +103,13 @@ public static void main(String[] args) {
 
   private void start() {
     try {
-      new Thread(() -> getBlock()).start();
-      new Thread(() -> processBlock()).start();
+      new Thread(this::getBlock).start();
+      new Thread(this::processBlock).start();
       logger.info("Success to start solid node, ID: {}, remoteBlockNum: {}.", ID.get(),
           remoteBlockNum);
     } catch (Exception e) {
-      logger
-          .error("Failed to start solid node, address: {}.", Args.getInstance().getTrustNodeAddr());
+      logger.error("Failed to start solid node, address: {}.",
+          CommonParameter.getInstance().getTrustNodeAddr());
       System.exit(0);
     }
   }

framework/src/test/java/org/tron/core/services/http/BroadcastServletTest.java

@@ -81,7 +81,7 @@ public void tearDown() {
   }
 
   @Test
-  public void testDoPost() throws IOException {
+  public void doPostTest() throws IOException {
     URLStreamHandlerFactory urlStreamHandlerFactory = mock(URLStreamHandlerFactory.class);
     URL.setURLStreamHandlerFactory(urlStreamHandlerFactory);
 
@@ -139,6 +139,7 @@ public void testDoPost() throws IOException {
     while ((line = in.readLine()) != null) {
       result.append(line).append("\n");
     }
+    Assert.assertNotNull(result);
     in.close();
     writer.flush();
     FileInputStream fileInputStream = new FileInputStream("temp.txt");

framework/src/test/java/org/tron/core/services/http/TriggerSmartContractServletTest.java

@@ -5,6 +5,7 @@
 import lombok.extern.slf4j.Slf4j;
 import org.apache.http.HttpResponse;
 import org.bouncycastle.util.encoders.Hex;
+import org.junit.Assert;
 import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Test;
@@ -80,9 +81,12 @@ public void testNormalCall() {
     parameter.addProperty("owner_address", ByteArray.toHexString(ownerAddr));
     parameter.addProperty("contract_address", ByteArray.toHexString(contractAddr));
     parameter.addProperty("function_selector", "test()");
-    invokeToLocal("triggersmartcontract", parameter);
-    invokeToLocal("triggerconstantcontract", parameter);
-    invokeToLocal("estimateenergy", parameter);
+    HttpResponse triggersmartcontract1 = invokeToLocal("triggersmartcontract", parameter);
+    HttpResponse triggersmartcontract2 = invokeToLocal("triggerconstantcontract", parameter);
+    HttpResponse triggersmartcontract3 = invokeToLocal("estimateenergy", parameter);
+    Assert.assertNotNull(triggersmartcontract1);
+    Assert.assertNotNull(triggersmartcontract2);
+    Assert.assertNotNull(triggersmartcontract3);
   }
 
   public static HttpResponse invokeToLocal(

framework/src/test/java/org/tron/core/services/http/solidity/GetTransactionByIdSolidityServletTest.java

@@ -59,7 +59,7 @@ public static void init() {
    */
 
   @Before
-  public void setUp() throws InterruptedException {
+  public void setUp() {
     getTransactionByIdSolidityServlet = new GetTransactionByIdSolidityServlet();
     this.request = mock(HttpServletRequest.class);
     this.response = mock(HttpServletResponse.class);
@@ -96,7 +96,7 @@ public void doPostTest() throws IOException {
     httpUrlConnection.setDoOutput(true);
     String postData = "{\"value\": \"309b6fa3d01353e46f57dd8a8f27611f98e392b50d035cef21"
         + "3f2c55225a8bd2\"}";
-    httpUrlConnection.setRequestProperty("Content-Length", "" + postData.length());
+    httpUrlConnection.setRequestProperty("Content-Length", String.valueOf(postData.length()));
 
     when(httpUrlConnection.getOutputStream()).thenReturn(outContent);
     OutputStreamWriter out = new OutputStreamWriter(httpUrlConnection.getOutputStream(),
@@ -121,14 +121,15 @@ public void doPostTest() throws IOException {
     while ((line = in.readLine()) != null) {
       result.append(line).append("\n");
     }
+    Assert.assertNotNull(result);
     in.close();
     writer.flush();
     FileInputStream fileInputStream = new FileInputStream("temp.txt");
     InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream);
     BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
 
-    StringBuffer sb = new StringBuffer();
-    String text = null;
+    StringBuilder sb = new StringBuilder();
+    String text;
     while ((text = bufferedReader.readLine()) != null) {
       sb.append(text);
     }
@@ -150,7 +151,7 @@ public void doGetTest() throws IOException {
     httpUrlConnection.setDoOutput(true);
     String postData = "{\"value\": \"309b6fa3d01353e46f57dd8a8f27611f98e392b50d035cef21"
         + "3f2c55225a8bd2\"}";
-    httpUrlConnection.setRequestProperty("Content-Length", "" + postData.length());
+    httpUrlConnection.setRequestProperty("Content-Length", String.valueOf(postData.length()));
 
     when(httpUrlConnection.getOutputStream()).thenReturn(outContent);
     OutputStreamWriter out = new OutputStreamWriter(httpUrlConnection.getOutputStream(),
@@ -175,14 +176,15 @@ public void doGetTest() throws IOException {
     while ((line = in.readLine()) != null) {
       result.append(line).append("\n");
     }
+    Assert.assertNotNull(result);
     in.close();
     writer.flush();
     FileInputStream fileInputStream = new FileInputStream("temp.txt");
     InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream);
     BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
 
-    StringBuffer sb = new StringBuffer();
-    String text = null;
+    StringBuilder sb = new StringBuilder();
+    String text;
     while ((text = bufferedReader.readLine()) != null) {
       sb.append(text);
     }