[CI Postmortem] Flaky: MonoTouchFixtures.Security.RecordTest.DeskCase_83099_InmutableDictionary

[rolfbjarne]

Summary

MonoTouchFixtures.Security.RecordTest.DeskCase_83099_InmutableDictionary is failing intermittently across 4 unrelated PRs in the last week.

Failure Details

Test: MonoTouchFixtures.Security.RecordTest.DeskCase_83099_InmutableDictionary
Suite: monotouch-test (macOS)
Error message:

Password could not be saved to keychain. queryCode: InvalidRecord addCode: -1 updateCode: -1
Expected: True
But was:  False

Source: tests/monotouch-test/Security/RecordTest.cs:line 336

Classification

• Type: Flaky test
• Impact: 4 PRs, 4 builds
• Confidence: High — the failing PRs are unrelated, indicating an environment-dependent issue (macOS keychain state)

Affected Builds

PR	Build	Pipeline
#25105	13882756	sim-pr-tests
#25151	13883447	sim-pr-tests
#25195	13896502	sim-pr-tests
#25202	13893722	sim-pr-tests

Root Cause Hypothesis

The test interacts with the macOS keychain, and the failure depends on the agent machine's keychain state. The error InvalidRecord suggests the keychain entry doesn't exist or was left in an inconsistent state by a previous test run on the same agent.

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Filed automatically by CI postmortem analysis. Individual test failures extracted from HtmlReport artifacts and NUnit XML results.

[rolfbjarne]

CI Post-Mortem Update (Apr 21–27, 2026)

This failure was seen again this week:

PR	Build
#25079	13917176 or related
#25229	13925548 or related

Error message this time:

Password could not be cleared from keychain. queryCode: Success removeCode: InvalidRecord
Expected: True
But was:  False

(Slightly different from last week's variant — clearCode: InvalidRecord vs addCode: -1)

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Updated automatically by CI postmortem analysis.