test(dump): add comprehensive tests for stack trace and coredump functionalities #5434
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…tionalities Signed-off-by: adity1raut <[email protected]>
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Summary of ChangesHello @adity1raut, 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 test coverage for the Highlights
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Hi @adity1raut. Thanks for your PR. I'm waiting for a fluid-cloudnative member to verify that this patch is reasonable to test. If it is, they should reply with Once the patch is verified, the new status will be reflected by the I understand the commands that are listed here. DetailsInstructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. |
…tionalities Signed-off-by: adity1raut <[email protected]>
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Code Review
This pull request introduces a comprehensive test suite for the dump package, covering stack traces, signal-triggered goroutine dumps, and coredump creation. This is a valuable addition. My review focuses on enhancing the robustness and maintainability of these new tests. I've provided suggestions to eliminate redundant test cases, strengthen weak assertions, and adopt Go best practices for file path and string manipulation to create a cleaner and more reliable test suite.
| Context("when installing for the first time", func() { | ||
| It("should set initialized to true", func() { | ||
| InstallgoroutineDumpGenerator() | ||
| Expect(initialized).To(BeTrue()) | ||
| }) | ||
| }) | ||
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| Context("when installing multiple times", func() { |
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This test case, It("should do nothing on second installation", ...) is redundant. The idempotency of InstallgoroutineDumpGenerator is already verified by the preceding test, It("should only initialize once", ...). Removing this duplicate test will make the test suite cleaner and easier to maintain.
| }) | ||
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| Context("when receiving SIGQUIT signal", func() { | ||
| It("should create dump file when signal is sent", func() { |
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Using a fixed time.Sleep to wait for an asynchronous operation like a signal handler can lead to flaky tests. The test might fail if the handler takes longer than 500ms due to high system load. For more robust testing of file creation, you could consider using a file system watcher (e.g., from the fsnotify package) to wait for the file to appear, rather than relying on a fixed delay.
| Expect(err).ToNot(HaveOccurred()) | ||
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| err = process.Signal(syscall.SIGQUIT) | ||
| Expect(err).ToNot(HaveOccurred()) | ||
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The file matching logic is complex and can be made more readable and robust by using functions from the strings package. This change would require importing the strings package.
| Expect(err).ToNot(HaveOccurred()) | |
| err = process.Signal(syscall.SIGQUIT) | |
| Expect(err).ToNot(HaveOccurred()) | |
| if strings.HasPrefix(file.Name(), "go-") && strings.HasSuffix(file.Name(), ".txt") { | |
| found = true | |
| dumpFilePath = "/tmp/" + file.Name() | |
| break | |
| } |
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if we add the if else condition then test fails becouse they not handle properally
| }) | ||
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| It("should write complete stack trace to file", func() { | ||
| coredump(testFile) | ||
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| content, err := os.ReadFile(testFile) | ||
| Expect(err).ToNot(HaveOccurred()) | ||
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| strContent := string(content) | ||
| Expect(strContent).To(ContainSubstring("goroutine")) | ||
| Expect(len(strContent)).To(BeNumerically(">", 0)) | ||
| }) | ||
| }) | ||
| }) | ||
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| var _ = Describe("SignalHandling", func() { | ||
| BeforeEach(func() { | ||
| initialized = false | ||
| log = ctrl.Log.WithName("dump") | ||
| }) | ||
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| AfterEach(func() { | ||
| os.Remove("/tmp/go-test-signal.txt") | ||
| // Clean up any dump files created during tests |
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The entire Describe("SignalHandling", ...) block is redundant. The test It("should initialize successfully", ...) is already present in the Describe("InstallgoroutineDumpGenerator", ...) suite. The cleanup logic in AfterEach is also duplicative. Removing this block will improve the clarity and maintainability of the test file.
…tionalities Signed-off-by: adity1raut <[email protected]>
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…tionalities
Ⅰ. Describe what this PR does
Ⅱ. Does this pull request fix one issue?
Part of #5407
Ⅲ. List the added test cases (unit test/integration test) if any, please explain if no tests are needed.
Ⅳ. Describe how to verify it
Ⅴ. Special notes for reviews