[wp-trac] [WordPress Trac] #55667: Tests_Basic::test_security_md() truncates the `.0` for `x.1` current version releases.

[WordPress Trac]

#55667: Tests_Basic::test_security_md() truncates the `.0` for `x.1` current
version releases.
------------------------------+-------------------------
 Reporter:  hellofromTonya    |      Owner:  (none)
     Type:  defect (bug)      |     Status:  new
 Priority:  normal            |  Milestone:  6.1
Component:  Build/Test Tools  |    Version:  5.4
 Severity:  normal            |   Keywords:  needs-patch
  Focuses:                    |
------------------------------+-------------------------
 Discovered when branching 6.0, the `Tests_Basic::test_security_md()` code
 introduced in [47403] removes the `.0` in calcuating the latest stable
 version number:

 {{{#!php
 $latest_stable   = sprintf( '%s.x', (float) $current_version - 0.1 );
 }}}

 When `$current_version` is say `6.1`, after running through the `(float)`
 type conversion and subtracting `0.1`, the resultant is `6` rather than
 `6.0`. This causes the test to fail.

 As a temporary workaround, the assertion was disabled in [53346]. Once
 fixed, this change can be reverted.

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Ticket URL: <https://core.trac.wordpress.org/ticket/55667>
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