EntityDefinitionUpdateTest fails with contrib db driver

Problem/Motivation

Since the commit of #2282119: Make the Entity Field API handle field purging, EntityDefinitionUpdateTest fails with contrib db driver.

1) Drupal\KernelTests\Core\Entity\EntityDefinitionUpdateTest::testBaseFieldDeleteWithExistingData
Failed asserting that Array &0 (
    'deleted' => '1'
    'entity_id' => '2'
    'langcode' => 'en'
    'delta' => '0'
    'bundle' => 'entity_test_update'
    'revision_id' => '2'
    'new_base_field_value' => 'foo'
) is identical to Array &0 (
    'bundle' => 'entity_test_update'
    'deleted' => '1'
    'entity_id' => '2'
    'revision_id' => '2'
    'langcode' => 'en'
    'delta' => '0'
    'new_base_field_value' => 'foo'
).
/home/travis/drupal8/core/tests/Drupal/KernelTests/Core/Entity/EntityDefinitionUpdateTest.php:444

2) Drupal\KernelTests\Core\Entity\EntityDefinitionUpdateTest::testBundleFieldDeleteWithExistingData
Failed asserting that Array &0 (
    'deleted' => '1'
    'entity_id' => '1'
    'langcode' => 'en'
    'delta' => '0'
    'bundle' => 'test_bundle'
    'revision_id' => '1'
    'new_bundle_field_value' => 'foo'
) is identical to Array &0 (
    'bundle' => 'test_bundle'
    'deleted' => '1'
    'entity_id' => '1'
    'revision_id' => '1'
    'langcode' => 'en'
    'delta' => '0'
    'new_bundle_field_value' => 'foo'
).
/home/travis/drupal8/core/tests/Drupal/KernelTests/Core/Entity/EntityDefinitionUpdateTest.php:511

This is because the test checks for the identicality of an expected array to the actual results. The assert relies on the fact that not only array values are the same, but also about the sequence of the keys in the array.

Proposed resolution

Sort both the expected and the actual array by key before asserting.

Remaining tasks

review

User interface changes

na

API changes

na

Data model changes

na