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b51b4a8937 Fix FIPS-incompatible passwords and config in e2e test suites (#36001)
* Fix FIPS-incompatible passwords and config in e2e test suites

FIPS OpenSSL requires PBKDF2 HMAC keys >= 14 bytes, so the server
now enforces PasswordSettings.MinimumLength >= 14 under FIPS builds.
The e2e suites were failing (Cypress 0/447, Playwright 16/353) because
they used short passwords and set MinimumLength below the FIPS floor.

- Add newTestPassword() to both Cypress and Playwright utilities,
  returning a static FIPS-compliant password (>= 14 chars)
- Replace all short hardcoded Mattermost user passwords ('passwd',
  'Test123456!', 'Testing123', 'Password123!') with newTestPassword()
- Raise PasswordSettings.MinimumLength from 5 to 14 in default configs
- Update password validation tests for the FIPS minimum (error messages,
  default expectations, test password lengths)

* Fix additional FIPS e2e test failures

- Revert server-constant-dependent assertions (MinimumLength defaults
  and validation errors) since those depend on FIPS build tags, not config
- Fix short hardcoded passwords in signup, forgot_password, and
  existing_email_address specs to use newTestPassword()
- Fix password_spec cancel test to use a different password than
  testUser.password (both resolve to newTestPassword())
- Fix Playwright password reset test to use newTestPassword() instead
  of pw.random.id() (7 chars, too short for MinimumLength=14)
- Update password help text assertions to match MinimumLength=14 config
- Use regex for Playwright signup page password error locator
- Fix import order in ABAC support.ts

* Fix FIPS vs non-FIPS build-dependent e2e test assertions

The server's password minimum constants differ between FIPS (14) and
non-FIPS (8/5) builds. Make three test assertions adaptive:

- MM-T1770: Accept default MinimumLength of either 8 or 14
- MM-T1771: Match validation error with either 5 or 14 as the minimum
- MM-T1773: Reload after save and compare against actual server config,
  since saving MinimumLength=5 (webapp default) is rejected on FIPS

* e2e: upgrade demo plugin to v0.11.0 and configure required settings

* update demo plugin download link

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Co-authored-by: sabril <[email protected]>
2026-04-13 12:52:13 +08:00
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