Fix empty STDIN handling in user import-csv

[ekamran]

Summary

Fixes wp user import-csv - when no CSV content is provided on STDIN.

The old broken test could not just be re-enabled, because the command could exit successfully when STDIN was detected but no CSV header or rows were read. This adds a small check after parsing STDIN so the command returns the existing error instead of silently doing nothing.

Testing

• composer behat features/user-import-csv.feature:143
• composer behat features/user-import-csv.feature
• composer lint
• composer phpcs
• composer phpstan
• composer phpunit
• git diff --check

[github-actions]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[Copilot]

Pull request overview

Fixes wp user import-csv - behavior when STDIN is present but no CSV content is actually provided, ensuring the command fails with the existing STDIN error instead of exiting successfully with no effect.

Changes:

• Add a post-parse validation in User_Command::import_csv() to detect empty/invalid STDIN reads and emit Unable to read content from STDIN.
• Re-enable the Behat scenario for importing users from STDIN by removing the @broken tag.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/User_Command.php	Adds an error-path after attempting to parse php://stdin for import-csv - to avoid silent no-op when STDIN has no usable CSV content.
features/user-import-csv.feature	Re-enables the STDIN import scenario test by removing the @broken marker.

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