API functional tests drop all tables from main database

[zunsakai]

Preconditions and environment

• Magento 2.4.5
• PHP 8.1
• Mysql 8.0

Steps to reproduce

1. Install magento live site into database magento_db
2. Create separate database magento_functional_tests
3. In folder dev/tests/api-functional/config, copy install-config-mysql.php.dist to install-config-mysql.php, post-install-setup-command-config.php.dist to post-install-setup-command-config.php
4. Write down db name (magento_functional_tests), user, password,... into dev/tests/api-functional/config/install-config-mysql.php
5. In dev/tests/api-functional/phpunit_graphql.xml.dist add new testsuite base on my module

<testsuite name="MYVENDOR_FUNCTIONAL_TESTS_APP_CODE">
	<directory>../../../app/code/MyVendor/*/Test/Functional</directory>
</testsuite>

6. In dev/tests/api-functional/phpunit_graphql.xml.dist set TESTS_BASE_URL to local domain, TESTS_MAGENTO_INSTALLATION to enabled
7. cd dev/tests/api-functional
8. ../../../vendor/bin/phpunit --configuration ../../../dev/tests/api-functional/phpunit_graphql.xml.dist --testsuite "MYVENDOR_FUNCTIONAL_TESTS_APP_CODE"

Expected result

Web Api tests should run on test database as configured in step 4 (magento_functional_tests)
Main database is intact.

Actual result

Test database is intact.
All tables are deleted from main database (magento_db)

Additional information

I don't know why it affects the main database, but in the scope of testing, don't touch the main data.

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

Hi @kylepham103. Thank you for your report.
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[zunsakai]

I also found a few similar tickets here
#26875
#18769
But I have not found any solution or explanation for this problem. I tried other configs, but main database is always affected

[chalov-anton]

@magento give me 2.4-develop instance

[magento-deployment-service]

Hi @chalov-anton. Thank you for your request. I'm working on Magento instance for you.

[magento-deployment-service]

Hi @chalov-anton, here is your Magento Instance: https://8f1a02000c0d783ab56d9c1b872b7876.instances.magento-community.engineering
Admin access: https://8f1a02000c0d783ab56d9c1b872b7876.instances.magento-community.engineering/admin_5fbc
Login: 8e4bf987
Password: 2c754f4e0522

[gwharton]

Also see the following related

#27213

And the following with a detailed analysis of why it does what it does when I looked at it last year.

#33696

[m2-assistant]

Hi @engcom-November. Thank you for working on this issue.
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[engcom-November]

Verified the issue on Magento 2.4-develop instance and the issue is reproducible.
On using separate database while running API functional tests, all the data from main database is removed. Hence confirming this issue.