Added test for multiple connections #64
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❌ Changes requested.
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| @@ -30,4 +30,8 @@ public void subscribeToTopic(String topic) { | |||
| public Set<String> getSubscribedTopics() { | |||
| return new HashSet<>(subscribedTopics); | |||
| } | |||
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| public void connectToServer(String localhost, int i) { | |||
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The connectToServer method doesn't actually connect to the server. It just sets the connected field to true. This could lead to false positives in tests, as the client might not be able to connect to the server in a real-world scenario.
| } | ||
| } | ||
| @Test | ||
| public void testMultipleConnections() { |
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The testMultipleConnections method doesn't actually test the server's ability to handle multiple connections. It just creates multiple clients and calls their connectToServer method, which doesn't actually connect to the server. This could lead to false positives in tests, as the server might not be able to handle multiple connections in a real-world scenario.
… connects to server
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| @@ -30,4 +34,12 @@ public void subscribeToTopic(String topic) { | |||
| public Set<String> getSubscribedTopics() { | |||
| return new HashSet<>(subscribedTopics); | |||
| } | |||
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| public void connectToServer(String serverAddress, int serverPort) throws IOException { | |||
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The connectToServer method creates a new Socket and streams but doesn't use them. This could lead to resource leaks and doesn't actually test the connection. The connection should be tested by sending a message to the server and receiving a response.
| public void stop(){ | ||
| try { | ||
| serverSocket.close(); | ||
| System.out.println("Server stopped"); |
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The stop method catches an IOException and logs it, but it also prints a message to the console. This is redundant and can lead to confusion. It would be better to only log the exception and remove the console print statement.
| System.out.println("Server stopped"); | |
| logger.log(Level.INFO, "Server stopped"); |
…se for connectToServer
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👍 Looks good to me!
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2additional comments because they didn't meet confidence threshold of50%.
1. /src/main/java/org/fungover/thunder/Client.java:42:
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Consider adding exception handling for IOException which might occur during the socket connection, object stream creation, or during read/write operations. This could prevent unexpected behavior or application crash. - Reasoning:
The Client class has a new methodconnectToServerwhich opens a socket connection to the server and sends a message. It then waits for a response from the server and sets theconnectedflag to true if the response is 'Connection successful'. However, there is no exception handling for IOException which might occur during the socket connection, object stream creation, or during read/write operations. This could lead to unexpected behavior or application crash.
2. /src/main/java/org/fungover/thunder/Server.java:35:
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Consider checking if the server socket is already closed before attempting to close it. This could prevent an unnecessary IOException. - Reasoning:
The Server class has a new methodstopwhich closes the server socket. However, there is no check to see if the server socket is already closed before attempting to close it. This could lead to an unnecessary IOException.
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❌ Changes requested.
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131lines of code in3files - Took 2 minutes and 52 seconds to review
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| try { | ||
| server = new Server(); | ||
| ExecutorService executorService = Executors.newFixedThreadPool(5); | ||
| CountDownLatch latch = new CountDownLatch(1); |
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The CountDownLatch is created but never used. This could lead to a race condition where the clients try to connect before the server is ready. Consider using the CountDownLatch to signal when the server is ready.
| executorService.shutdown(); | ||
| while (!executorService.isTerminated()) { | ||
| try { | ||
| executorService.awaitTermination(2, TimeUnit.SECONDS); |
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The executorService.awaitTermination method is used incorrectly. It should be used after executorService.shutdown(), not in a loop. This could lead to an infinite loop if the tasks do not terminate within the specified timeout.
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| String response = in.readLine(); | ||
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| if ("Connection successful".equals(response)) { |
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The connectToServer method is not handling the case where the server response is not 'Connection successful'. This could lead to a situation where the client thinks it is connected even when it is not. Consider throwing an exception or setting this.connected to false in the else case.
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👍 Looks good to me!
- Performed an incremental review on 58a6993
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1additional comments because they didn't meet confidence threshold of50%.
1. /src/test/java/org/fungover/thunder/ServerTest.java:61:
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Consider failing the test if a client fails to connect to the server. You can achieve this by rethrowing the exception after logging it, which will cause the test to fail. - Reasoning:
The testMultipleConnections test method does not handle the case where a client fails to connect to the server. If a client fails to connect, the test should fail. However, in the current implementation, the exception is caught and logged, but the test continues to run and may pass if the other clients connect successfully. This could lead to false positives in the test results.
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Related Issue(s)
Closes #44
Proposed Changes
testMultipleConnectionsin theServerTestclass.ExecutorServicefor concurrent execution of client connection tasks.Description
This test (
testMultipleConnections) is designed to check the server's capability to handle multiple clients connecting simultaneously. It creates a set number ofClientinstances, each attempting to connect to the server concurrently. The test asserts that each client successfully establishes a connection. This setup simulates a scenario where multiple clients connect to the server concurrently, testing the server's concurrency and connection handling capabilities.Summary:
This PR adds a new test for the 'Server' class to validate its ability to handle multiple concurrent client connections, updates the 'Client' and 'Server' classes with new methods to support this test, and utilizes an
ExecutorServiceto concurrently execute client connection tasks.Key points:
testMultipleConnectionsto test server's ability to handle multiple connections.connectToServermethod.stopmethod.ExecutorServicefor concurrent execution of client connection tasks.Generated with ❤️ by ellipsis.dev