20 files declare their use of FieldKernelTestBase

BooleanItemTest.php in core/modules/field/tests/src/Kernel/Boolean/BooleanItemTest.php
CommentItemTest.php in core/modules/comment/tests/src/Kernel/CommentItemTest.php
DateRangeItemTest.php in core/modules/datetime_range/tests/src/Kernel/DateRangeItemTest.php
DateTimeItemTest.php in core/modules/datetime/tests/src/Kernel/DateTimeItemTest.php
EmailItemTest.php in core/modules/field/tests/src/Kernel/Email/EmailItemTest.php
EntityReferenceItemTest.php in core/modules/field/tests/src/Kernel/EntityReference/EntityReferenceItemTest.php
FileItemTest.php in core/modules/file/tests/src/Kernel/FileItemTest.php
ImageFormatterTest.php in core/modules/image/tests/src/Kernel/ImageFormatterTest.php
ImageItemTest.php in core/modules/image/tests/src/Kernel/ImageItemTest.php
LinkItemSerializationTest.php in core/modules/link/tests/src/Kernel/LinkItemSerializationTest.php
LinkItemTest.php in core/modules/link/tests/src/Kernel/LinkItemTest.php
LinkItemUrlValidationTest.php in core/modules/link/tests/src/Kernel/LinkItemUrlValidationTest.php
NumberItemTest.php in core/modules/field/tests/src/Kernel/Number/NumberItemTest.php
OptionsFieldUnitTestBase.php in core/modules/options/tests/src/Kernel/OptionsFieldUnitTestBase.php
PasswordItemTest.php in core/tests/Drupal/KernelTests/Core/Field/FieldType/PasswordItemTest.php
TelephoneItemTest.php in core/modules/telephone/tests/src/Kernel/TelephoneItemTest.php
TextWithSummaryItemTest.php in core/modules/text/tests/src/Kernel/TextWithSummaryItemTest.php
TimestampItemTest.php in core/modules/field/tests/src/Kernel/Timestamp/TimestampItemTest.php
UriItemTest.php in core/modules/field/tests/src/Kernel/Uri/UriItemTest.php
UuidItemTest.php in core/modules/field/tests/src/Kernel/KernelString/UuidItemTest.php

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