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@yarikbratashchuk yarikbratashchuk commented Aug 13, 2024

Summary by CodeRabbit

  • New Features

    • Introduced improved error handling in the data retrieval method, ensuring users receive an error message when no data is found for the specified height.
  • Tests

    • Added a new test case to verify the behavior of the data retrieval method when no blobs exist at a specific height.
    • Modified an existing test to change how errors are managed during concurrent read/write operations.

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coderabbitai bot commented Aug 13, 2024

Walkthrough

The recent updates improve error handling in the GetIDs method of the DummyDA struct, ensuring safer data access by returning an error when requested data is not found. The test suite also received enhancements, including a new test case to validate this functionality and modifications to existing tests for better error detection in concurrent operations. Together, these changes strengthen the reliability and robustness of the codebase.

Changes

Files Change Summary
test/dummy.go Improved error handling in GetIDs method to return an error if no blobs exist for the given height; introduced ErrNoBlobAtHeight.
test/test_suite.go Added NoBlobsAtHeightTest to verify the new error handling; adjusted error checking in ConcurrentReadWriteTest to better handle errors.

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant DummyDA
    participant DataStore

    Client->>DummyDA: GetIDs(height)
    DummyDA->>DataStore: Check if height exists
    alt Height exists
        DataStore-->>DummyDA: Return IDs
        DummyDA-->>Client: Return IDs
    else Height does not exist
        DummyDA-->>Client: Return error ("no blob at given height")
    end
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Poem

🐇 In a world of data, oh so bright,
I found a way to check what's right.
With graceful errors, I hop with glee,
No more panics—just you and me!
A test to ensure we’re on the way,
To robust code, hip-hip-hooray! 🎉


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@RollkitBot RollkitBot requested review from a team, Manav-Aggarwal and gupadhyaya and removed request for a team August 13, 2024 19:09
@yarikbratashchuk yarikbratashchuk added the bug Something isn't working label Aug 13, 2024
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Actionable comments posted: 0

Outside diff range, codebase verification and nitpick comments (2)
test/test_suite.go (2)

154-154: Add a comment for the exported function NoBlobsAtHeightTest.

The function NoBlobsAtHeightTest is exported and should have a comment explaining its purpose.

+// NoBlobsAtHeightTest checks that GetIDs returns an error when no blobs exist at a given height.
Tools
golangci-lint

[warning] 154-154: exported: exported function NoBlobsAtHeightTest should have comment or be unexported

(revive)

GitHub Check: lint / golangci-lint

[warning] 154-154:
exported: exported function NoBlobsAtHeightTest should have comment or be unexported (revive)


139-139: Potential Issue Confirmed: Ignoring errors in concurrent test.

In the ConcurrentReadWriteTest, the error from GetIDs is indeed ignored, which could lead to undetected issues during concurrent operations. Consider adding error handling for GetIDs to ensure the robustness of the test.

  • File: test/test_suite.go
  • Lines: 139
Analysis chain

Potential Issue: Ignoring errors in concurrent test.

In the ConcurrentReadWriteTest, the error from GetIDs is now ignored. This could lead to undetected issues during concurrent operations. Consider checking the error to ensure the robustness of the test.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify if ignoring errors in `ConcurrentReadWriteTest` affects test reliability.

# Test: Search for error handling in `ConcurrentReadWriteTest`. Expect: Errors should be asserted.
rg --type go -A 5 'ConcurrentReadWriteTest'

Length of output: 689


Script:

#!/bin/bash
# Extract the full implementation of the ConcurrentReadWriteTest function to check error handling.
ast-grep --lang go --pattern $'func ConcurrentReadWriteTest(t *testing.T, d da.DA) {
  $$$
}' 

Length of output: 1041

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 5e023b4 and 5febebc.

Files selected for processing (2)
  • test/dummy.go (1 hunks)
  • test/test_suite.go (3 hunks)
Additional context used
golangci-lint
test/test_suite.go

[warning] 154-154: exported: exported function NoBlobsAtHeightTest should have comment or be unexported

(revive)

GitHub Check: lint / golangci-lint
test/test_suite.go

[warning] 154-154:
exported: exported function NoBlobsAtHeightTest should have comment or be unexported (revive)

Additional comments not posted (2)
test/test_suite.go (1)

31-33: New Test Case: Verify error handling for non-existent blobs.

The new test case "No blobs at a given height" correctly verifies the behavior of the GetIDs method when no blobs exist at a specified height. This enhances the test coverage for error handling.

test/dummy.go (1)

85-88: Improved Error Handling: Check for non-existent blobs.

The GetIDs method now checks if blobs exist at the given height and returns an error if not. This prevents potential runtime panics and improves the robustness of the method.

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Actionable comments posted: 1

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 5febebc and c9a3094.

Files selected for processing (1)
  • test/test_suite.go (3 hunks)
Additional context used
golangci-lint
test/test_suite.go

[warning] 154-154: exported: comment on exported function NoBlobsAtHeightTest should be of the form "NoBlobsAtHeightTest ..."

(revive)

GitHub Check: lint / golangci-lint
test/test_suite.go

[warning] 154-154:
exported: comment on exported function NoBlobsAtHeightTest should be of the form "NoBlobsAtHeightTest ..." (revive)

Additional comments not posted (1)
test/test_suite.go (1)

31-33: New sub-test addition looks good.

The addition of the "No blobs at a given height" sub-test aligns with the PR objectives and enhances the test suite.

@yarikbratashchuk yarikbratashchuk force-pushed the yarik/no-blob-at-height branch from c9a3094 to 698b32e Compare August 13, 2024 19:20
tuxcanfly
tuxcanfly previously approved these changes Aug 13, 2024
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OK.

Manav-Aggarwal
Manav-Aggarwal previously approved these changes Aug 13, 2024
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Actionable comments posted: 0

Outside diff range, codebase verification and nitpick comments (1)
test/test_suite.go (1)

158-158: Fix comment format for exported function.

The comment for the NoBlobsAtHeightTest function should follow the Go convention for exported functions.

-// NoBlobsAtHeightTest tests the case when there are no blobs at a given height in DA
+// NoBlobsAtHeightTest tests the case when there are no blobs at a given height in DA.
Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between c9a3094 and 9648692.

Files selected for processing (2)
  • test/dummy.go (2 hunks)
  • test/test_suite.go (4 hunks)
Files skipped from review as they are similar to previous changes (1)
  • test/dummy.go
Additional comments not posted (2)
test/test_suite.go (2)

32-34: Addition of new test case approved.

The new test case "No blobs at a given height" enhances test coverage for handling scenarios where no blobs exist at a specified height.


141-143: Verify the impact of modified error handling.

The change in error handling to ignore errors unless they relate to ErrNoBlobAtHeight might allow other errors to go undetected. Verify that this change does not compromise the robustness of error detection during concurrent operations.

@yarikbratashchuk
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@tzdybal as these same fixtures used for proxy test and for direct test, i found that the easiest is to work with strings to identify specific error

tzdybal
tzdybal previously approved these changes Aug 17, 2024
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👍

tuxcanfly
tuxcanfly previously approved these changes Aug 19, 2024
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OK.

@tuxcanfly tuxcanfly dismissed stale reviews from tzdybal and themself via 4ea4c65 August 19, 2024 19:05
@tuxcanfly tuxcanfly force-pushed the yarik/no-blob-at-height branch from 4ea4c65 to d577928 Compare August 19, 2024 19:05
@tuxcanfly tuxcanfly requested a review from tzdybal August 19, 2024 19:05
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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 9648692 and d577928.

Files selected for processing (2)
  • test/dummy.go (2 hunks)
  • test/test_suite.go (4 hunks)
Files skipped from review as they are similar to previous changes (2)
  • test/dummy.go
  • test/test_suite.go

@tuxcanfly tuxcanfly added this pull request to the merge queue Aug 20, 2024
Merged via the queue into main with commit 5e6b934 Aug 20, 2024
@tuxcanfly tuxcanfly deleted the yarik/no-blob-at-height branch August 20, 2024 14:41
@tac0turtle tac0turtle removed this from Evolve Apr 24, 2025
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5 participants