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Summary of ChangesHello @robfrank, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request significantly enhances the reliability and maintainability of the test suite by modernizing its approach to concurrency and synchronization. It transitions from error-prone manual thread management and fixed sleep durations to more robust and predictable mechanisms like Highlights
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Code Review
This pull request is a great step towards improving the reliability and maintainability of the test suite by replacing manual thread management and sleeps with modern concurrency utilities like ExecutorService and Awaitility. The changes are generally well-implemented.
I've found a few issues that need attention:
- A critical bug in
waitForReplicationIsCompletedwhereAwaitilityis used incorrectly. - A critical issue in
RandomTestMultiThreadsTestwhere an emptycatchblock can swallow exceptions. - Inconsistent use of wildcard vs. explicit imports across the modified files.
- Some places where
future.get()is used without a timeout, and exceptions are ignored, which can lead to hung or silently failing tests. - An unreachable code block in
BaseGraphServerTest. - An unclear comment about a "double wait".
I've provided specific comments and suggestions for each of these points. Addressing them will make the test suite even more robust.
engine/src/test/java/com/arcadedb/RandomTestMultiThreadsTest.java
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server/src/test/java/com/arcadedb/server/ha/HTTP2ServersIT.java
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| try { | ||
| threads[i].join(); | ||
| } catch (InterruptedException e) { | ||
| future.get(); | ||
| } catch (InterruptedException | ExecutionException e) { | ||
| // IGNORE IT | ||
| } |
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Calling future.get() without a timeout can cause the test to hang indefinitely if a task gets stuck. Additionally, ignoring InterruptedException and ExecutionException is risky. InterruptedException should be handled by re-interrupting the current thread, and ignoring ExecutionException can hide test failures.
A more robust approach would be to use a timeout and fail the test upon any exception, similar to the implementation in ACIDTransactionTest.java. This same issue is present in testExplicitLockBucket, testExplicitLockTypeSQL, and testExplicitLockBucketSQL in this file.
try {
future.get(120, TimeUnit.SECONDS);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
fail("Test interrupted while waiting for task completion", e);
} catch (ExecutionException e) {
fail("Test task failed with an exception", e.getCause());
} catch (TimeoutException e) {
fail("Test task timed out", e);
}
server/src/test/java/com/arcadedb/server/BaseGraphServerTest.java
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engine/src/test/java/com/arcadedb/RandomTestMultiThreadsTest.java
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engine/src/test/java/com/arcadedb/index/TypeLSMTreeIndexTest.java
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engine/src/test/java/com/arcadedb/index/TypeLSMTreeIndexTest.java
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Coverage summary from CodacySee diff coverage on Codacy
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Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: Diff coverage details
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…e in HA and multithread tests Co-authored-by: robfrank <413587+robfrank@users.noreply.github.com>
…e in ACID and ExplicitLocking tests Co-authored-by: robfrank <413587+robfrank@users.noreply.github.com>
…e in LSMTree index tests Co-authored-by: robfrank <413587+robfrank@users.noreply.github.com>
…e in HTTPGraphConcurrentIT Co-authored-by: robfrank <413587+robfrank@users.noreply.github.com>
… calls Co-authored-by: robfrank <413587+robfrank@users.noreply.github.com>
…dsTest Co-authored-by: robfrank <413587+robfrank@users.noreply.github.com>
… with ExecutorService Co-authored-by: robfrank <413587+robfrank@users.noreply.github.com>
Co-authored-by: robfrank <413587+robfrank@users.noreply.github.com>
…for index compaction
…e Awaitility timeout for replication completion
…r security and schema setup
…enhance endpoint interaction, and improve response validation
…Test and RandomTestMultiThreadsTest
… and RemoteDatabaseIT
…nd TransactionContext
…ocalDatabase and TransactionContext
… improved clarity and performance
…for improved stability
This pull request refactors multi-threaded test code across several test classes to improve reliability and maintainability. The changes focus on replacing manual thread management with
ExecutorServiceandFuture, ensuring proper shutdown and error handling, and improving synchronization in tests. Additionally, it replaces fixed sleep-based waits with Awaitility for more robust waiting in index compaction tests.Concurrency improvements in tests:
ExecutorServiceandFuturein all major multi-threaded tests (ACIDTransactionTest.java,ExplicitLockingTransactionTest.java,RandomTestMultiThreadsTest.java). This change improves error handling, simplifies code, and ensures proper resource cleanup. [1] [2] [3] [4] [5] [6]ExecutorService, including timeout handling and forced shutdown if necessary, ensuring tests do not leave lingering threads. [1] [2] [3] [4] [5] [6]Synchronization and waiting improvements:
Thread.sleep()calls with Awaitility inLSMTreeIndexTest.javafor waiting on index compaction, making tests more reliable and less dependent on arbitrary timeouts. [1] [2]Code style and imports:
These changes modernize and stabilize the test suite, making it easier to maintain and less prone to intermittent failures due to thread management or timing issues.