58 files declare their use of JsonApiSpec

ActionTest.php in core/modules/jsonapi/tests/src/Functional/ActionTest.php
BaseFieldOverrideTest.php in core/modules/jsonapi/tests/src/Functional/BaseFieldOverrideTest.php
BlockContentTest.php in core/modules/jsonapi/tests/src/Functional/BlockContentTest.php
BlockContentTypeTest.php in core/modules/jsonapi/tests/src/Functional/BlockContentTypeTest.php
BlockTest.php in core/modules/jsonapi/tests/src/Functional/BlockTest.php
CommentTest.php in core/modules/jsonapi/tests/src/Functional/CommentTest.php
CommentTypeTest.php in core/modules/jsonapi/tests/src/Functional/CommentTypeTest.php
ConfigTestTest.php in core/modules/jsonapi/tests/src/Functional/ConfigTestTest.php
ConfigurableLanguageTest.php in core/modules/jsonapi/tests/src/Functional/ConfigurableLanguageTest.php
ContactFormTest.php in core/modules/jsonapi/tests/src/Functional/ContactFormTest.php
ContentLanguageSettingsTest.php in core/modules/jsonapi/tests/src/Functional/ContentLanguageSettingsTest.php
DateFormatTest.php in core/modules/jsonapi/tests/src/Functional/DateFormatTest.php
EditorTest.php in core/modules/jsonapi/tests/src/Functional/EditorTest.php
EntityAccessChecker.php in core/modules/jsonapi/src/Access/EntityAccessChecker.php
EntityFormDisplayTest.php in core/modules/jsonapi/tests/src/Functional/EntityFormDisplayTest.php
EntityFormModeTest.php in core/modules/jsonapi/tests/src/Functional/EntityFormModeTest.php
EntityReferenceFieldNormalizer.php in core/modules/jsonapi/src/Normalizer/EntityReferenceFieldNormalizer.php
EntityTestComputedFieldTest.php in core/modules/jsonapi/tests/src/Functional/EntityTestComputedFieldTest.php
EntityTestMapFieldTest.php in core/modules/jsonapi/tests/src/Functional/EntityTestMapFieldTest.php
EntityTestTest.php in core/modules/jsonapi/tests/src/Functional/EntityTestTest.php
EntityViewDisplayTest.php in core/modules/jsonapi/tests/src/Functional/EntityViewDisplayTest.php
EntityViewModeTest.php in core/modules/jsonapi/tests/src/Functional/EntityViewModeTest.php
FieldConfigTest.php in core/modules/jsonapi/tests/src/Functional/FieldConfigTest.php
FieldStorageConfigTest.php in core/modules/jsonapi/tests/src/Functional/FieldStorageConfigTest.php
FileTest.php in core/modules/jsonapi/tests/src/Functional/FileTest.php
FileUploadTest.php in core/modules/jsonapi/tests/src/Functional/FileUploadTest.php
FilterFormatTest.php in core/modules/jsonapi/tests/src/Functional/FilterFormatTest.php
ImageStyleTest.php in core/modules/jsonapi/tests/src/Functional/ImageStyleTest.php
JsonApiDocumentTopLevelNormalizer.php in core/modules/jsonapi/src/Normalizer/JsonApiDocumentTopLevelNormalizer.php
JsonApiJsonSchemaTestTrait.php in core/modules/jsonapi/tests/src/Traits/JsonApiJsonSchemaTestTrait.php
JsonApiRequestValidator.php in core/modules/jsonapi/src/EventSubscriber/JsonApiRequestValidator.php
JsonApiSpecTest.php in core/modules/jsonapi/tests/src/Unit/JsonApiSpecTest.php
JsonApiTopLevelResourceNormalizerTest.php in core/modules/jsonapi/tests/src/Kernel/Normalizer/JsonApiTopLevelResourceNormalizerTest.php
MediaTest.php in core/modules/jsonapi/tests/src/Functional/MediaTest.php
MediaTypeTest.php in core/modules/jsonapi/tests/src/Functional/MediaTypeTest.php
MenuLinkContentTest.php in core/modules/jsonapi/tests/src/Functional/MenuLinkContentTest.php
MenuTest.php in core/modules/jsonapi/tests/src/Functional/MenuTest.php
NodeTest.php in core/modules/jsonapi/tests/src/Functional/NodeTest.php
NodeTypeTest.php in core/modules/jsonapi/tests/src/Functional/NodeTypeTest.php
PathAliasTest.php in core/modules/jsonapi/tests/src/Functional/PathAliasTest.php
Relationship.php in core/modules/jsonapi/src/JsonApiResource/Relationship.php
RelationshipNormalizer.php in core/modules/jsonapi/src/Normalizer/RelationshipNormalizer.php
ResourceObject.php in core/modules/jsonapi/src/JsonApiResource/ResourceObject.php
ResourceObjectNormalizer.php in core/modules/jsonapi/src/Normalizer/ResourceObjectNormalizer.php
ResourceResponseTestTrait.php in core/modules/jsonapi/tests/src/Functional/ResourceResponseTestTrait.php
ResourceTestBase.php in core/modules/jsonapi/tests/src/Functional/ResourceTestBase.php
ResponsiveImageStyleTest.php in core/modules/jsonapi/tests/src/Functional/ResponsiveImageStyleTest.php
RestResourceConfigTest.php in core/modules/jsonapi/tests/src/Functional/RestResourceConfigTest.php
RoleTest.php in core/modules/jsonapi/tests/src/Functional/RoleTest.php
SearchPageTest.php in core/modules/jsonapi/tests/src/Functional/SearchPageTest.php
ShortcutSetTest.php in core/modules/jsonapi/tests/src/Functional/ShortcutSetTest.php
ShortcutTest.php in core/modules/jsonapi/tests/src/Functional/ShortcutTest.php
TermTest.php in core/modules/jsonapi/tests/src/Functional/TermTest.php
UserTest.php in core/modules/jsonapi/tests/src/Functional/UserTest.php
ViewTest.php in core/modules/jsonapi/tests/src/Functional/ViewTest.php
VocabularyTest.php in core/modules/jsonapi/tests/src/Functional/VocabularyTest.php
WorkflowTest.php in core/modules/jsonapi/tests/src/Functional/WorkflowTest.php
WorkspaceTest.php in core/modules/jsonapi/tests/src/Functional/WorkspaceTest.php

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