[wp-trac] [WordPress Trac] #29924: Unit tests require that the theme call add_image_size()

[WordPress Trac]

#29924: Unit tests require that the theme call add_image_size()
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 Reporter:  mboynes           |      Owner:
     Type:  defect (bug)      |     Status:  new
 Priority:  normal            |  Milestone:  Awaiting Review
Component:  Build/Test Tools  |    Version:
 Severity:  normal            |   Keywords:
  Focuses:                    |
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 Today I ran core's unit tests with Underscores active and ran into the
 following error:

 {{{
 1) Tests_Media::test_add_image_size
 PHPUnit_Framework_Exception: Argument #2 (No Value) of
 PHPUnit_Framework_Assert::assertArrayNotHasKey() must be a array or
 ArrayAccess

 /var/www/wordpress-develop/tests/phpunit/tests/media.php:416
 }}}

 It turns out the theme used for unit tests must call `add_image_size()`,
 otherwise `global $_wp_additional_image_sizes` is null.

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Ticket URL: <https://core.trac.wordpress.org/ticket/29924>
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