Add ::setStrictModeForTest() function

[BrianHenryIE]

Summary

Adds WP_Mock::setStrictModeForTest() to control strict mode for an individual test, respecting the bootstrapped configuration for other tests.

Closes:

#249

Details

Adds setStrictModeForTest($enabled = true). This runs a backtrace to determine the currently running test, records the test name and preference as an associative array in WP_Mock::$__strict_mode_for_individual_test, then WP_Mock::strictMode() has been updated to check a new function ::isStrictModeForTest() which again determines the running test and if it has been set, uses the set value in preference to the default (bootstrapped) value.

NB: If tests are written using @test annotations or #[Test] attribute, they will not be recognised as tests.

An easier possibility would be to use WP_Mock\Tools\TestCase and use its set-up/tear-down methods, but that's not how I generally use this tool myself.

Once I get feedback and think a bit more about this, I'll add the appropriate documentation.

Contributor checklist

• I agree to follow this project's Code of Conduct.
• I have updated the documentation accordingly
• I have added tests to cover changes introduced by this pull request
• All new and existing tests pass

Testing

Tests added, phpcs passing, phpstan passing.

Reviewer checklist

• Code changes review
• Documentation changes review
• Unit tests pass
• Static analysis passes

[coveralls]

coverage: 66.667% (+0.5%) from 66.142%
when pulling 03ed773 on BrianHenryIE:strict-mode
into 446ea70 on 10up:trunk.