Pkg/sql/logictest/tests/fakedist-disk/fakedist-disk_test: TestLogic_row_level_security Failed

Apr 25, 2025 by ADMIN 94 views

Introduction

The TestLogic_row_level_security test in the fakedist-disk test suite has failed. This test is designed to verify the functionality of row-level security in CockroachDB. In this article, we will delve into the details of the test failure, analyze the logs, and provide a step-by-step guide to investigate and resolve the issue.

Test Failure Details

The test failure is reported as follows:

=== RUN   TestLogic_row_level_security
    test_log_scope.go:165: test logs captured to: outputs.zip/logTestLogic_row_level_security3855850909
    test_log_scope.go:76: use -show-logs to present logs inline
    test_server_shim.go:141: cluster virtualization disabled in global scope due to issue: #76378 (expected label: C-bug)
[05:57:10] setting distsql_workmem='65132B';
[05:57:31] --- done: /var/lib/engflow/worker/work/2/exec/bazel-out/k8-fastbuild/bin/pkg/sql/logictest/tests/fakedist-disk/fakedist-disk_test_/fakedist-disk_test.runfiles/com_github_cockroachdb_cockroach/pkg/sql/logictest/testdata/logic_test/row_level_security with config fakedist-disk: 569 tests, 2 failures
[05:57:31] --- total progress: 569 statements
--- total: 569 tests, 2 failures
    logic.go:4518: -- test log scope end --
test logs left over in: outputs.zip/logTestLogic_row_level_security3855850909
--- FAIL: TestLogic_row_level_security (21.88s)
=== RUN   TestLogic_row_level_security/computed_stored_cols
    logic.go:3127: 
         
        /var/lib/engflow/worker/work/2/exec/bazel-out/k8-fastbuild/bin/pkg/sql/logictest/tests/fakedist-disk/fakedist-disk_test_/fakedist-disk_test.runfiles/com_github_cockroachdb_cockroach/pkg/sql/logictest/testdata/logic_test/row_level_security:2397: UPDATE t SET c = 4 WHERE k = 2 RETURNING *;
        expected:
            2  2  2  4  5
            
        but found (query options: "") :
            2  NULL  2  4  5
            
    logic.go:2315: 
         /var/lib/engflow/worker/work/2/exec/bazel-out/k8-fastbuild/bin/pkg/sql/logictest/tests/fakedist-disk/fakedist-disk_test_/fakedist-disk_test.runfiles/com_github_cockroachdb_cockroach/pkg/sql/logictest/testdata/logic_test/row_level_security:2402: too many errors encountered, skipping the rest of the input
--- FAIL: TestLogic_row_level_security/computed_stored_cols (0.21s)

Analyzing the Logs

The logs indicate that the test failure occurred in the TestLogic_row_level_security/computed_stored_cols test case. The error message suggests that the expected result was not obtained, and the actual result NULL for the column c.

Step-by-Step Guide to Investigate and Resolve the Issue

Step 1: Review the Test Code

Review the test code in the row_level_security test data to ensure that the expected result is correct and the test case is properly written.

Step 2: Check the Database Schema

Verify that the database schema is correct and the table t has the expected columns and data types.

Step 3: Run the Test Again

Run the test again to reproduce the failure and capture the logs.

Step 4: Investigate the Error Message

Investigate the error message to determine the root cause of the issue. In this case, the error message suggests that the expected result was not obtained, and the actual result was NULL for the column c.

Step 5: Debug the Issue

Debug the issue by running the test in debug mode and setting breakpoints to investigate the execution flow.

Step 6: Update the Test Code

Update the test code to reflect the correct expected result and ensure that the test case is properly written.

Step 7: Run the Test Again

Run the test again to verify that the issue is resolved.

Conclusion

In conclusion, the TestLogic_row_level_security test in the fakedist-disk test suite has failed due to an issue with the expected result in the TestLogic_row_level_security/computed_stored_cols test case. By following the step-by-step guide outlined above, we can investigate and resolve the issue.

Additional Resources

For more information on how to investigate and resolve test failures in CockroachDB, please refer to the following resources:

Related Issues

The following Jira issue is related to this test failure:

CRDB-49751

Acknowledgments

Introduction

In our previous article, we discussed the test failure in the TestLogic_row_level_security test in the fakedist-disk test suite. In this article, we will provide a Q&A section to address common questions and concerns related to this issue.

Q: What is the root cause of the test failure?

A: The root cause of the test failure is an issue with the expected result in the TestLogic_row_level_security/computed_stored_cols test case. The expected result was not obtained, and the actual result was NULL for the column c.

Q: How can I reproduce the test failure?

A: To reproduce the test failure, follow these steps:

Run the test again to capture the logs.
Review the test code in the row_level_security test data to ensure that the expected result is correct and the test case is properly written.
Check the database schema to verify that the table t has the expected columns and data types.

Q: What are the common causes of test failures in CockroachDB?

A: Common causes of test failures in CockroachDB include:

Incorrect expected results in test cases
Database schema issues
Test code errors
Environment configuration issues

Q: How can I debug test failures in CockroachDB?

A: To debug test failures in CockroachDB, follow these steps:

Run the test in debug mode to capture the logs.
Set breakpoints in the test code to investigate the execution flow.
Review the test code and database schema to identify potential issues.

Q: What are the best practices for writing test cases in CockroachDB?

A: Best practices for writing test cases in CockroachDB include:

Writing clear and concise test code
Using descriptive test names and descriptions
Verifying expected results and actual results
Using test frameworks and tools to simplify testing

Q: How can I contribute to the CockroachDB test framework?

A: To contribute to the CockroachDB test framework, follow these steps:

Review the test code and database schema to identify potential issues.
Write new test cases or update existing test cases to reflect changes in the database schema or test code.
Submit a pull request to the CockroachDB repository with your changes.