5 methods override ConfigEntityValidationTestBase::providerInvalidMachineNameCharacters()

ActionValidationTest::providerInvalidMachineNameCharacters in core/modules/system/tests/src/Kernel/Entity/ActionValidationTest.php
Action IDs are atypical in that they allow periods in the machine name.
BlockValidationTest::providerInvalidMachineNameCharacters in core/modules/block/tests/src/Kernel/BlockValidationTest.php
Block names are atypical in that they allow periods in the machine name.
EntityFormModeValidationTest::providerInvalidMachineNameCharacters in core/tests/Drupal/KernelTests/Core/Entity/EntityFormModeValidationTest.php
MenuValidationTest::providerInvalidMachineNameCharacters in core/modules/system/tests/src/Kernel/Entity/MenuValidationTest.php
Menu IDs are atypical: they allow dashes and disallow underscores.
ShortcutSetValidationTest::providerInvalidMachineNameCharacters in core/modules/shortcut/tests/src/Kernel/ShortcutSetValidationTest.php
Shortcut set IDs are atypical: they allow dashes and disallow underscores.

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