Add test for reading files with different ProductRegistries

[Dr15Jones]

PR description:

This checks a fix made in an early pull request.

PR validation:

I put a temporary printout in EventProcessor::readFile to show the condition was met.

resolves cms-sw/framework-team#1572

[Dr15Jones]

please test

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-48996/46179

[cmsbuild]

A new Pull Request was created by @Dr15Jones for master.

It involves the following packages:

• IOPool/Tests (core)

@Dr15Jones, @makortel, @smuzaffar can you please review it and eventually sign? Thanks.
@makortel, @wddgit this is something you requested to watch as well.
@ftenchini, @mandrenguyen, @sextonkennedy you are the release manager for this.

cms-bot commands are listed here

[cmsbuild]

+1

Size: This PR adds an extra 24KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-dc14d4/48282/summary.html
COMMIT: 9192bae
CMSSW: CMSSW_16_0_X_2025-09-25-1100/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/48996/48282/install.sh to create a dev area with all the needed externals and cmssw changes.

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:

• @Dr15Jones Fix lifetime issue found in edmWriteConfigs #48987
• @leonardogiannini [mkFit] propagation to plane in backward fit phase2 and bug fix #48970
• @CMS-HGCAL [HGCAL] Add ECON-T indexer for reading out TPG data #48648
• @cms-ngt-hlt [NGT] Add extra NGT scouting track table producer, when using NANO:@NGTScoutingVal #48935
• @hqucms Update HGCal testbeam relval workflow #48941
• @wouf HI GENs fix for rnd seed issue #48814 #48906

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-dc14d4/48282/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-dc14d4/48282/git-merge-result

Comparison Summary

Summary:

• You potentially removed 86 lines from the logs
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 51
• DQMHistoTests: Total histograms compared: 3911484
• DQMHistoTests: Total failures: 136099
• DQMHistoTests: Total nulls: 12
• DQMHistoTests: Total successes: 3775353
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: -0.098 KiB( 50 files compared)
• DQMHistoSizes: changed ( 2024.0010001 ): -0.008 KiB JetMET/SUSYDQM
• DQMHistoSizes: changed ( 2024.0040001 ): -0.090 KiB JetMET/SUSYDQM
• Checked 218 log files, 188 edm output root files, 51 DQM output files
• TriggerResults: found differences in 1 / 49 workflows

[makortel]

This comment doesn't seem very informative

Suggested change

# Source using imported EmptySource

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-48996/46229

[cmsbuild]

Pull request #48996 was updated. @Dr15Jones, @cmsbuild, @makortel, @smuzaffar can you please check and sign again.

[Dr15Jones]

please test

[cmsbuild]

+1

Size: This PR adds an extra 24KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-dc14d4/48350/summary.html
COMMIT: 47c4f87
CMSSW: CMSSW_16_0_X_2025-09-29-1100/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/48996/48350/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially removed 1 lines from the logs
• Reco comparison results: 8 differences found in the comparisons
• DQMHistoTests: Total files compared: 51
• DQMHistoTests: Total histograms compared: 3922620
• DQMHistoTests: Total failures: 10
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3922590
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 50 files compared)
• Checked 218 log files, 188 edm output root files, 51 DQM output files
• TriggerResults: no differences found

[makortel]

Comparison differences are related to #47071

[makortel]

+core

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @ftenchini, @mandrenguyen, @sextonkennedy (and backports should be raised in the release meeting by the corresponding L2)

[mandrenguyen]

+1