refactor: Rename associated resource to subject resource

src/authorization/AuxiliaryReader.ts

@@ -8,8 +8,8 @@ import { PermissionReader } from './PermissionReader';
 
 /**
  * A PermissionReader for auxiliary resources such as acl or shape resources.
- * The access permissions of an auxiliary resource depend on those of the resource it is associated with.
+ * By default, the access permissions of an auxiliary resource depend on those of its subject resource.
- * This authorizer calls the source authorizer with the identifier of the associated resource.
+ * This authorizer calls the source authorizer with the identifier of the subject resource.
  */
 export class AuxiliaryReader extends PermissionReader {
   protected readonly logger = getLoggerFor(this);
@@ -51,7 +51,7 @@ export class AuxiliaryReader extends PermissionReader {
 
     return {
       ...auxiliaryAuth,
-      identifier: this.auxiliaryStrategy.getAssociatedIdentifier(auxiliaryAuth.identifier),
+      identifier: this.auxiliaryStrategy.getSubjectIdentifier(auxiliaryAuth.identifier),
     };
   }
 }

src/authorization/WebAclReader.ts

@@ -62,7 +62,7 @@ export class WebAclReader extends PermissionReader {
     this.logger.debug(`Retrieving permissions of ${credentials.agent?.webId} for ${identifier.path}`);
 
     const isAcl = this.aclStrategy.isAuxiliaryIdentifier(identifier);
-    const mainIdentifier = isAcl ? this.aclStrategy.getAssociatedIdentifier(identifier) : identifier;
+    const mainIdentifier = isAcl ? this.aclStrategy.getSubjectIdentifier(identifier) : identifier;
 
     // Determine the full authorization for the agent granted by the applicable ACL
     const acl = await this.getAclRecursive(mainIdentifier);

src/ldp/auxiliary/AuxiliaryIdentifierStrategy.ts

@@ -42,7 +42,7 @@ export interface AuxiliaryIdentifierStrategy {
    * This does not guarantee that this resource exists.
    * @param identifier - Identifier of the auxiliary resource.
    *
-   * @returns The ResourceIdentifier of the corresponding resource.
+   * @returns The ResourceIdentifier of the subject resource.
    */
-  getAssociatedIdentifier: (identifier: ResourceIdentifier) => ResourceIdentifier;
+  getSubjectIdentifier: (identifier: ResourceIdentifier) => ResourceIdentifier;
 }

src/ldp/auxiliary/AuxiliaryStrategy.ts

@@ -10,7 +10,7 @@ import type { AuxiliaryIdentifierStrategy } from './AuxiliaryIdentifierStrategy'
  */
 export interface AuxiliaryStrategy extends AuxiliaryIdentifierStrategy {
   /**
-   * Whether this auxiliary resources uses its own authorization instead of the associated resource authorization.
+   * Whether this auxiliary resources uses its own authorization instead of the subject resource authorization.
    * @param identifier - Identifier of the auxiliary resource.
    */
   usesOwnAuthorization: (identifier: ResourceIdentifier) => boolean;
@@ -25,7 +25,7 @@ export interface AuxiliaryStrategy extends AuxiliaryIdentifierStrategy {
   /**
    * Adds metadata related to this auxiliary resource,
    * in case this is required for this type of auxiliary resource.
-   * The metadata that is added depends on the given identifier being an auxiliary or associated resource:
+   * The metadata that is added depends on the given identifier being an auxiliary or subject resource:
    * the metadata will be used to link to the other one, and potentially add extra typing info.
    *
    * Used for:
@@ -33,7 +33,7 @@ export interface AuxiliaryStrategy extends AuxiliaryIdentifierStrategy {
    * that resource MUST include an HTTP Link header pointing to the location of each auxiliary resource."
    * https://solid.github.io/specification/protocol#auxiliary-resources-server
    *
-   * The above is an example of how that metadata would only be added in case the input is the associated identifier.
+   * The above is an example of how that metadata would only be added in case the input is the subject identifier.
    *
    * @param metadata - Metadata to update.
    */

src/ldp/auxiliary/ComposedAuxiliaryStrategy.ts

@@ -38,8 +38,8 @@ export class ComposedAuxiliaryStrategy implements AuxiliaryStrategy {
     return this.identifierStrategy.isAuxiliaryIdentifier(identifier);
   }
 
-  public getAssociatedIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
+  public getSubjectIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
-    return this.identifierStrategy.getAssociatedIdentifier(identifier);
+    return this.identifierStrategy.getSubjectIdentifier(identifier);
   }
 
   public usesOwnAuthorization(): boolean {

src/ldp/auxiliary/LinkMetadataGenerator.ts

@@ -5,8 +5,8 @@ import type { AuxiliaryIdentifierStrategy } from './AuxiliaryIdentifierStrategy'
 import { MetadataGenerator } from './MetadataGenerator';
 
 /**
- * Adds a link to the auxiliary resource when called on the associated resource.
+ * Adds a link to the auxiliary resource when called on the subject resource.
- * Specifically: <associatedId> <link> <auxiliaryId> will be added.
+ * Specifically: <subjectId> <link> <auxiliaryId> will be added.
  *
  * In case the input is metadata of an auxiliary resource no metadata will be added
  */

src/ldp/auxiliary/RoutingAuxiliaryIdentifierStrategy.ts

@@ -28,9 +28,9 @@ export class RoutingAuxiliaryIdentifierStrategy implements AuxiliaryIdentifierSt
     return this.sources.some((source): boolean => source.isAuxiliaryIdentifier(identifier));
   }
 
-  public getAssociatedIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
+  public getSubjectIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
     const source = this.getMatchingSource(identifier);
-    return source.getAssociatedIdentifier(identifier);
+    return source.getSubjectIdentifier(identifier);
   }
 
   protected getMatchingSource(identifier: ResourceIdentifier): AuxiliaryIdentifierStrategy {

src/ldp/auxiliary/RoutingAuxiliaryStrategy.ts

@@ -8,7 +8,7 @@ import { RoutingAuxiliaryIdentifierStrategy } from './RoutingAuxiliaryIdentifier
  * An {@link AuxiliaryStrategy} that combines multiple AuxiliaryStrategies into one.
  * Uses `isAuxiliaryIdentifier` to know which strategy to call for which call.
  *
- * `addMetadata` will either call all strategies if the input is the associated identifier,
+ * `addMetadata` will either call all strategies if the input is the subject identifier,
  * or only the matching strategy if the input is an auxiliary identifier.
  */
 export class RoutingAuxiliaryStrategy extends RoutingAuxiliaryIdentifierStrategy implements AuxiliaryStrategy {

src/ldp/auxiliary/SuffixAuxiliaryIdentifierStrategy.ts

@@ -28,7 +28,7 @@ export class SuffixAuxiliaryIdentifierStrategy implements AuxiliaryIdentifierStr
     return identifier.path.endsWith(this.suffix);
   }
 
-  public getAssociatedIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
+  public getSubjectIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
     if (!this.isAuxiliaryIdentifier(identifier)) {
       throw new InternalServerError(`${identifier.path} does not end on ${this.suffix} so no conversion is possible.`);
     }

src/storage/DataAccessorBasedStore.ts

@@ -244,8 +244,8 @@ export class DataAccessorBasedStore implements ResourceStore {
     }
     if (this.auxiliaryStrategy.isAuxiliaryIdentifier(identifier) &&
       this.auxiliaryStrategy.isRequiredInRoot(identifier)) {
-      const associatedIdentifier = this.auxiliaryStrategy.getAssociatedIdentifier(identifier);
+      const subjectIdentifier = this.auxiliaryStrategy.getSubjectIdentifier(identifier);
-      const parentMetadata = await this.accessor.getMetadata(associatedIdentifier);
+      const parentMetadata = await this.accessor.getMetadata(subjectIdentifier);
       if (this.isRootStorage(parentMetadata)) {
         throw new MethodNotAllowedHttpError(`Cannot delete ${identifier.path} from a root storage container.`);
       }

src/storage/LockingResourceStore.ts

@@ -17,7 +17,7 @@ import type { ResourceStore } from './ResourceStore';
  * and releases it afterwards.
  * In case the request returns a Representation the lock will only be released when the data stream is finished.
  *
- * For auxiliary resources the lock will be applied to the associated resource.
+ * For auxiliary resources the lock will be applied to the subject resource.
  * The actual operation is still executed on the auxiliary resource.
  */
 export class LockingResourceStore implements AtomicResourceStore {
@@ -71,11 +71,11 @@ export class LockingResourceStore implements AtomicResourceStore {
 
   /**
    * Acquires the correct identifier to lock this resource.
-   * For auxiliary resources this means the associated identifier.
+   * For auxiliary resources this means the subject identifier.
    */
   protected getLockIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
     return this.auxiliaryStrategy.isAuxiliaryIdentifier(identifier) ?
-      this.auxiliaryStrategy.getAssociatedIdentifier(identifier) :
+      this.auxiliaryStrategy.getSubjectIdentifier(identifier) :
       identifier;
   }
 

test/unit/authorization/AuxiliaryReader.test.ts

@@ -9,7 +9,7 @@ import { NotImplementedHttpError } from '../../../src/util/errors/NotImplemented
 describe('An AuxiliaryReader', (): void => {
   const suffix = '.dummy';
   const credentials = {};
-  const associatedIdentifier = { path: 'http://test.com/foo' };
+  const subjectIdentifier = { path: 'http://test.com/foo' };
   const auxiliaryIdentifier = { path: 'http://test.com/foo.dummy' };
   const permissionSet: PermissionSet = { [CredentialGroup.agent]: { read: true }};
   let source: jest.Mocked<PermissionReader>;
@@ -25,20 +25,20 @@ describe('An AuxiliaryReader', (): void => {
 
     strategy = {
       isAuxiliaryIdentifier: jest.fn((identifier: ResourceIdentifier): boolean => identifier.path.endsWith(suffix)),
-      getAssociatedIdentifier: jest.fn((identifier: ResourceIdentifier): ResourceIdentifier =>
+      getSubjectIdentifier: jest.fn((identifier: ResourceIdentifier): ResourceIdentifier =>
         ({ path: identifier.path.slice(0, -suffix.length) })),
       usesOwnAuthorization: jest.fn().mockReturnValue(false),
     } as any;
     reader = new AuxiliaryReader(source, strategy);
   });
 
-  it('can handle auxiliary resources if the source supports the associated resource.', async(): Promise<void> => {
+  it('can handle auxiliary resources if the source supports the subject resource.', async(): Promise<void> => {
     await expect(reader.canHandle({ identifier: auxiliaryIdentifier, credentials }))
       .resolves.toBeUndefined();
     expect(source.canHandle).toHaveBeenLastCalledWith(
-      { identifier: associatedIdentifier, credentials },
+      { identifier: subjectIdentifier, credentials },
     );
-    await expect(reader.canHandle({ identifier: associatedIdentifier, credentials }))
+    await expect(reader.canHandle({ identifier: subjectIdentifier, credentials }))
       .rejects.toThrow(NotImplementedHttpError);
 
     strategy.usesOwnAuthorization.mockReturnValueOnce(true);
@@ -54,10 +54,10 @@ describe('An AuxiliaryReader', (): void => {
     await expect(reader.handle({ identifier: auxiliaryIdentifier, credentials }))
       .resolves.toBe(permissionSet);
     expect(source.handle).toHaveBeenLastCalledWith(
-      { identifier: associatedIdentifier, credentials },
+      { identifier: subjectIdentifier, credentials },
     );
     // Safety checks are not present when calling `handle`
-    await expect(reader.handle({ identifier: associatedIdentifier, credentials }))
+    await expect(reader.handle({ identifier: subjectIdentifier, credentials }))
       .rejects.toThrow(NotImplementedHttpError);
   });
 
@@ -65,10 +65,10 @@ describe('An AuxiliaryReader', (): void => {
     await expect(reader.handleSafe({ identifier: auxiliaryIdentifier, credentials }))
       .resolves.toBe(permissionSet);
     expect(source.handleSafe).toHaveBeenLastCalledWith(
-      { identifier: associatedIdentifier, credentials },
+      { identifier: subjectIdentifier, credentials },
     );
 
-    await expect(reader.handleSafe({ identifier: associatedIdentifier, credentials }))
+    await expect(reader.handleSafe({ identifier: subjectIdentifier, credentials }))
       .rejects.toThrow(NotImplementedHttpError);
 
     strategy.usesOwnAuthorization.mockReturnValueOnce(true);

test/unit/authorization/WebAclReader.test.ts

@@ -25,7 +25,7 @@ describe('A WebAclReader', (): void => {
   const aclStrategy: AuxiliaryIdentifierStrategy = {
     getAuxiliaryIdentifier: (id: ResourceIdentifier): ResourceIdentifier => ({ path: `${id.path}.acl` }),
     isAuxiliaryIdentifier: (id: ResourceIdentifier): boolean => id.path.endsWith('.acl'),
-    getAssociatedIdentifier: (id: ResourceIdentifier): ResourceIdentifier => ({ path: id.path.slice(0, -4) }),
+    getSubjectIdentifier: (id: ResourceIdentifier): ResourceIdentifier => ({ path: id.path.slice(0, -4) }),
   } as any;
   let store: jest.Mocked<ResourceStore>;
   const identifierStrategy = new SingleRootIdentifierStrategy('http://test.com/');

test/unit/ldp/auxiliary/ComposedAuxiliaryStrategy.test.ts

@@ -15,7 +15,7 @@ describe('A ComposedAuxiliaryStrategy', (): void => {
     identifierStrategy = {
       getAuxiliaryIdentifier: jest.fn(),
       getAuxiliaryIdentifiers: jest.fn(),
-      getAssociatedIdentifier: jest.fn(),
+      getSubjectIdentifier: jest.fn(),
       isAuxiliaryIdentifier: jest.fn(),
     };
     metadataGenerator = {
@@ -36,9 +36,9 @@ describe('A ComposedAuxiliaryStrategy', (): void => {
     expect(identifierStrategy.getAuxiliaryIdentifiers).toHaveBeenCalledTimes(1);
     expect(identifierStrategy.getAuxiliaryIdentifiers).toHaveBeenLastCalledWith(identifier);
 
-    strategy.getAssociatedIdentifier(identifier);
+    strategy.getSubjectIdentifier(identifier);
-    expect(identifierStrategy.getAssociatedIdentifier).toHaveBeenCalledTimes(1);
+    expect(identifierStrategy.getSubjectIdentifier).toHaveBeenCalledTimes(1);
-    expect(identifierStrategy.getAssociatedIdentifier).toHaveBeenLastCalledWith(identifier);
+    expect(identifierStrategy.getSubjectIdentifier).toHaveBeenLastCalledWith(identifier);
 
     strategy.isAuxiliaryIdentifier(identifier);
     expect(identifierStrategy.isAuxiliaryIdentifier).toHaveBeenCalledTimes(1);

test/unit/ldp/auxiliary/LinkMetadataGenerator.test.ts

@@ -6,7 +6,7 @@ import { SOLID_META } from '../../../../src/util/Vocabularies';
 
 describe('A LinkMetadataGenerator', (): void => {
   const link = 'link';
-  const associatedId: ResourceIdentifier = { path: 'http://test.com/foo' };
+  const subjectId: ResourceIdentifier = { path: 'http://test.com/foo' };
   const auxiliaryId: ResourceIdentifier = { path: 'http://test.com/foo.dummy' };
   let generator: LinkMetadataGenerator;
 
@@ -15,7 +15,7 @@ describe('A LinkMetadataGenerator', (): void => {
       getAuxiliaryIdentifier: (identifier: ResourceIdentifier): ResourceIdentifier =>
         ({ path: `${identifier.path}.dummy` }),
       isAuxiliaryIdentifier: (identifier: ResourceIdentifier): boolean => identifier.path.endsWith('.dummy'),
-      getAssociatedIdentifier: (identifier: ResourceIdentifier): ResourceIdentifier =>
+      getSubjectIdentifier: (identifier: ResourceIdentifier): ResourceIdentifier =>
         ({ path: identifier.path.slice(0, -'.dummy'.length) }),
     } as AuxiliaryIdentifierStrategy;
     generator = new LinkMetadataGenerator(link, strategy);
@@ -25,14 +25,14 @@ describe('A LinkMetadataGenerator', (): void => {
     await expect(generator.canHandle(null as any)).resolves.toBeUndefined();
   });
 
-  it('stores no metadata if the input is an associated resource.', async(): Promise<void> => {
+  it('stores no metadata if the input is a subject resource.', async(): Promise<void> => {
     const metadata = new RepresentationMetadata(auxiliaryId);
     await expect(generator.handle(metadata)).resolves.toBeUndefined();
     expect(metadata.quads()).toHaveLength(0);
   });
 
-  it('uses the stored link to add metadata for associated resources.', async(): Promise<void> => {
+  it('uses the stored link to add metadata for subject resources.', async(): Promise<void> => {
-    const metadata = new RepresentationMetadata(associatedId);
+    const metadata = new RepresentationMetadata(subjectId);
     await expect(generator.handle(metadata)).resolves.toBeUndefined();
     expect(metadata.quads()).toHaveLength(1);
     expect(metadata.get(link)?.value).toBe(auxiliaryId.path);

test/unit/ldp/auxiliary/RoutingAuxiliaryIdentifierStrategy.test.ts

@@ -23,7 +23,7 @@ class SimpleSuffixStrategy implements AuxiliaryIdentifierStrategy {
     return identifier.path.endsWith(this.suffix);
   }
 
-  public getAssociatedIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
+  public getSubjectIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
     return { path: identifier.path.slice(0, -this.suffix.length) };
   }
 }
@@ -58,9 +58,9 @@ describe('A RoutingAuxiliaryIdentifierStrategy', (): void => {
     expect(strategy.isAuxiliaryIdentifier(dummy3Id)).toBe(false);
   });
 
-  it('#getAssociatedIdentifier returns the base id if a match is found.', async(): Promise<void> => {
+  it('#getSubjectIdentifier returns the base id if a match is found.', async(): Promise<void> => {
-    expect(strategy.getAssociatedIdentifier(dummy1Id)).toEqual(baseId);
+    expect(strategy.getSubjectIdentifier(dummy1Id)).toEqual(baseId);
-    expect(strategy.getAssociatedIdentifier(dummy2Id)).toEqual(baseId);
+    expect(strategy.getSubjectIdentifier(dummy2Id)).toEqual(baseId);
-    expect((): any => strategy.getAssociatedIdentifier(dummy3Id)).toThrow(NotImplementedHttpError);
+    expect((): any => strategy.getSubjectIdentifier(dummy3Id)).toThrow(NotImplementedHttpError);
   });
 });

test/unit/ldp/auxiliary/RoutingAuxiliaryStrategy.test.ts

@@ -27,7 +27,7 @@ class SimpleSuffixStrategy implements AuxiliaryStrategy {
     return identifier.path.endsWith(this.suffix);
   }
 
-  public getAssociatedIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
+  public getSubjectIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
     return { path: identifier.path.slice(0, -this.suffix.length) };
   }
 

test/unit/ldp/auxiliary/SuffixAuxiliaryIdentifierStrategy.test.ts

@@ -7,7 +7,7 @@ const suffix = '.dummy';
 
 describe('A SuffixAuxiliaryManager', (): void => {
   let strategy: SuffixAuxiliaryIdentifierStrategy;
-  const associatedId: ResourceIdentifier = { path: 'http://test.com/foo' };
+  const subjectId: ResourceIdentifier = { path: 'http://test.com/foo' };
   const auxiliaryId: ResourceIdentifier = { path: 'http://test.com/foo.dummy' };
 
   beforeEach(async(): Promise<void> => {
@@ -19,23 +19,23 @@ describe('A SuffixAuxiliaryManager', (): void => {
   });
 
   it('creates new identifiers by appending the suffix.', async(): Promise<void> => {
-    expect(strategy.getAuxiliaryIdentifier(associatedId)).toEqual(auxiliaryId);
+    expect(strategy.getAuxiliaryIdentifier(subjectId)).toEqual(auxiliaryId);
   });
 
   it('returns the same single identifier when requesting all of them.', async(): Promise<void> => {
-    expect(strategy.getAuxiliaryIdentifiers(associatedId)).toEqual([ auxiliaryId ]);
+    expect(strategy.getAuxiliaryIdentifiers(subjectId)).toEqual([ auxiliaryId ]);
   });
 
   it('checks the suffix to determine if an identifier is auxiliary.', async(): Promise<void> => {
-    expect(strategy.isAuxiliaryIdentifier(associatedId)).toBe(false);
+    expect(strategy.isAuxiliaryIdentifier(subjectId)).toBe(false);
     expect(strategy.isAuxiliaryIdentifier(auxiliaryId)).toBe(true);
   });
 
-  it('errors when trying to get the associated id from a non-auxiliary identifier.', async(): Promise<void> => {
+  it('errors when trying to get the subject id from a non-auxiliary identifier.', async(): Promise<void> => {
-    expect((): any => strategy.getAssociatedIdentifier(associatedId)).toThrow(InternalServerError);
+    expect((): any => strategy.getSubjectIdentifier(subjectId)).toThrow(InternalServerError);
   });
 
-  it('removes the suffix to create the associated identifier.', async(): Promise<void> => {
+  it('removes the suffix to create the subject identifier.', async(): Promise<void> => {
-    expect(strategy.getAssociatedIdentifier(auxiliaryId)).toEqual(associatedId);
+    expect(strategy.getSubjectIdentifier(auxiliaryId)).toEqual(subjectId);
   });
 });

test/unit/storage/DataAccessorBasedStore.test.ts

@@ -107,7 +107,7 @@ class SimpleSuffixStrategy implements AuxiliaryStrategy {
     return identifier.path.endsWith(this.suffix);
   }
 
-  public getAssociatedIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
+  public getSubjectIdentifier(identifier: ResourceIdentifier): ResourceIdentifier {
     return { path: identifier.path.slice(0, -this.suffix.length) };
   }
 

test/unit/storage/LockingResourceStore.test.ts

@@ -14,7 +14,7 @@ function emptyFn(): void {
 
 describe('A LockingResourceStore', (): void => {
   const auxiliaryId = { path: 'http://test.com/foo.dummy' };
-  const associatedId = { path: 'http://test.com/foo' };
+  const subjectId = { path: 'http://test.com/foo' };
   const data = { data: 'data!' } as any;
   let store: LockingResourceStore;
   let locker: ExpiringReadWriteLocker;
@@ -72,7 +72,7 @@ describe('A LockingResourceStore', (): void => {
 
     auxiliaryStrategy = {
       isAuxiliaryIdentifier: jest.fn((id: ResourceIdentifier): any => id.path.endsWith('.dummy')),
-      getAssociatedIdentifier: jest.fn((id: ResourceIdentifier): any => ({ path: id.path.slice(0, -6) })),
+      getSubjectIdentifier: jest.fn((id: ResourceIdentifier): any => ({ path: id.path.slice(0, -6) })),
     } as any;
 
     store = new LockingResourceStore(source, locker, auxiliaryStrategy);
@@ -85,68 +85,68 @@ describe('A LockingResourceStore', (): void => {
   }
 
   it('acquires a lock on the container when adding a representation.', async(): Promise<void> => {
-    await store.addResource(associatedId, data);
+    await store.addResource(subjectId, data);
     expect(locker.withWriteLock).toHaveBeenCalledTimes(1);
-    expect((locker.withWriteLock as jest.Mock).mock.calls[0][0]).toEqual(associatedId);
+    expect((locker.withWriteLock as jest.Mock).mock.calls[0][0]).toEqual(subjectId);
     expect(source.addResource).toHaveBeenCalledTimes(1);
-    expect(source.addResource).toHaveBeenLastCalledWith(associatedId, data, undefined);
+    expect(source.addResource).toHaveBeenLastCalledWith(subjectId, data, undefined);
     expect(order).toEqual([ 'lock write', 'addResource', 'unlock write' ]);
 
     order = [];
     await expect(store.addResource(auxiliaryId, data)).resolves.toBeUndefined();
     expect(locker.withWriteLock).toHaveBeenCalledTimes(2);
-    expect((locker.withWriteLock as jest.Mock).mock.calls[1][0]).toEqual(associatedId);
+    expect((locker.withWriteLock as jest.Mock).mock.calls[1][0]).toEqual(subjectId);
     expect(source.addResource).toHaveBeenCalledTimes(2);
     expect(source.addResource).toHaveBeenLastCalledWith(auxiliaryId, data, undefined);
     expect(order).toEqual([ 'lock write', 'addResource', 'unlock write' ]);
   });
 
   it('acquires a lock on the resource when setting its representation.', async(): Promise<void> => {
-    await store.setRepresentation(associatedId, data);
+    await store.setRepresentation(subjectId, data);
     expect(locker.withWriteLock).toHaveBeenCalledTimes(1);
-    expect((locker.withWriteLock as jest.Mock).mock.calls[0][0]).toEqual(associatedId);
+    expect((locker.withWriteLock as jest.Mock).mock.calls[0][0]).toEqual(subjectId);
     expect(source.setRepresentation).toHaveBeenCalledTimes(1);
-    expect(source.setRepresentation).toHaveBeenLastCalledWith(associatedId, data, undefined);
+    expect(source.setRepresentation).toHaveBeenLastCalledWith(subjectId, data, undefined);
     expect(order).toEqual([ 'lock write', 'setRepresentation', 'unlock write' ]);
 
     order = [];
     await expect(store.setRepresentation(auxiliaryId, data)).resolves.toBeUndefined();
     expect(locker.withWriteLock).toHaveBeenCalledTimes(2);
-    expect((locker.withWriteLock as jest.Mock).mock.calls[1][0]).toEqual(associatedId);
+    expect((locker.withWriteLock as jest.Mock).mock.calls[1][0]).toEqual(subjectId);
     expect(source.setRepresentation).toHaveBeenCalledTimes(2);
     expect(source.setRepresentation).toHaveBeenLastCalledWith(auxiliaryId, data, undefined);
     expect(order).toEqual([ 'lock write', 'setRepresentation', 'unlock write' ]);
   });
 
   it('acquires a lock on the resource when deleting it.', async(): Promise<void> => {
-    await store.deleteResource(associatedId);
+    await store.deleteResource(subjectId);
     expect(locker.withWriteLock).toHaveBeenCalledTimes(1);
-    expect((locker.withWriteLock as jest.Mock).mock.calls[0][0]).toEqual(associatedId);
+    expect((locker.withWriteLock as jest.Mock).mock.calls[0][0]).toEqual(subjectId);
     expect(source.deleteResource).toHaveBeenCalledTimes(1);
-    expect(source.deleteResource).toHaveBeenLastCalledWith(associatedId, undefined);
+    expect(source.deleteResource).toHaveBeenLastCalledWith(subjectId, undefined);
     expect(order).toEqual([ 'lock write', 'deleteResource', 'unlock write' ]);
 
     order = [];
     await expect(store.deleteResource(auxiliaryId)).resolves.toBeUndefined();
     expect(locker.withWriteLock).toHaveBeenCalledTimes(2);
-    expect((locker.withWriteLock as jest.Mock).mock.calls[1][0]).toEqual(associatedId);
+    expect((locker.withWriteLock as jest.Mock).mock.calls[1][0]).toEqual(subjectId);
     expect(source.deleteResource).toHaveBeenCalledTimes(2);
     expect(source.deleteResource).toHaveBeenLastCalledWith(auxiliaryId, undefined);
     expect(order).toEqual([ 'lock write', 'deleteResource', 'unlock write' ]);
   });
 
   it('acquires a lock on the resource when modifying its representation.', async(): Promise<void> => {
-    await store.modifyResource(associatedId, data as Patch);
+    await store.modifyResource(subjectId, data as Patch);
     expect(locker.withWriteLock).toHaveBeenCalledTimes(1);
-    expect((locker.withWriteLock as jest.Mock).mock.calls[0][0]).toEqual(associatedId);
+    expect((locker.withWriteLock as jest.Mock).mock.calls[0][0]).toEqual(subjectId);
     expect(source.modifyResource).toHaveBeenCalledTimes(1);
-    expect(source.modifyResource).toHaveBeenLastCalledWith(associatedId, data, undefined);
+    expect(source.modifyResource).toHaveBeenLastCalledWith(subjectId, data, undefined);
     expect(order).toEqual([ 'lock write', 'modifyResource', 'unlock write' ]);
 
     order = [];
     await expect(store.modifyResource(auxiliaryId, data as Patch)).resolves.toBeUndefined();
     expect(locker.withWriteLock).toHaveBeenCalledTimes(2);
-    expect((locker.withWriteLock as jest.Mock).mock.calls[1][0]).toEqual(associatedId);
+    expect((locker.withWriteLock as jest.Mock).mock.calls[1][0]).toEqual(subjectId);
     expect(source.modifyResource).toHaveBeenCalledTimes(2);
     expect(source.modifyResource).toHaveBeenLastCalledWith(auxiliaryId, data, undefined);
     expect(order).toEqual([ 'lock write', 'modifyResource', 'unlock write' ]);
@@ -157,15 +157,15 @@ describe('A LockingResourceStore', (): void => {
       order.push('bad get');
       throw new Error('dummy');
     };
-    await expect(store.getRepresentation(associatedId, {})).rejects.toThrow('dummy');
+    await expect(store.getRepresentation(subjectId, {})).rejects.toThrow('dummy');
     expect(locker.withReadLock).toHaveBeenCalledTimes(1);
-    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(associatedId);
+    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(subjectId);
     expect(order).toEqual([ 'lock read', 'bad get', 'unlock read' ]);
   });
 
   it('releases the lock on the resource when data has been read.', async(): Promise<void> => {
     // Read all data from the representation
-    const representation = await store.getRepresentation(associatedId, {});
+    const representation = await store.getRepresentation(subjectId, {});
     representation.data.on('data', (): any => true);
     registerEventOrder(representation.data, 'end');
 
@@ -174,13 +174,13 @@ describe('A LockingResourceStore', (): void => {
 
     // Verify the lock was acquired and released at the right time
     expect(locker.withReadLock).toHaveBeenCalledTimes(1);
-    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(associatedId);
+    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(subjectId);
     expect(source.getRepresentation).toHaveBeenCalledTimes(1);
-    expect(source.getRepresentation).toHaveBeenLastCalledWith(associatedId, {}, undefined);
+    expect(source.getRepresentation).toHaveBeenLastCalledWith(subjectId, {}, undefined);
     expect(order).toEqual([ 'lock read', 'getRepresentation', 'end', 'unlock read' ]);
   });
 
-  it('acquires the lock on the associated resource when reading an auxiliary resource.', async(): Promise<void> => {
+  it('acquires the lock on the subject resource when reading an auxiliary resource.', async(): Promise<void> => {
     // Read all data from the representation
     const representation = await store.getRepresentation(auxiliaryId, {});
     representation.data.on('data', (): any => true);
@@ -191,7 +191,7 @@ describe('A LockingResourceStore', (): void => {
 
     // Verify the lock was acquired and released at the right time
     expect(locker.withReadLock).toHaveBeenCalledTimes(1);
-    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(associatedId);
+    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(subjectId);
     expect(source.getRepresentation).toHaveBeenCalledTimes(1);
     expect(source.getRepresentation).toHaveBeenLastCalledWith(auxiliaryId, {}, undefined);
     expect(order).toEqual([ 'lock read', 'getRepresentation', 'end', 'unlock read' ]);
@@ -199,7 +199,7 @@ describe('A LockingResourceStore', (): void => {
 
   it('destroys the resource and releases the lock when the readable errors.', async(): Promise<void> => {
     // Make the representation error
-    const representation = await store.getRepresentation(associatedId, {});
+    const representation = await store.getRepresentation(subjectId, {});
     setImmediate((): any => representation.data.emit('error', new Error('Error on the readable')));
     registerEventOrder(representation.data, 'error');
     registerEventOrder(representation.data, 'close');
@@ -209,7 +209,7 @@ describe('A LockingResourceStore', (): void => {
 
     // Verify the lock was acquired and released at the right time
     expect(locker.withReadLock).toHaveBeenCalledTimes(1);
-    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(associatedId);
+    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(subjectId);
     expect(source.getRepresentation).toHaveBeenCalledTimes(1);
     expect(representation.data.destroy).toHaveBeenCalledTimes(1);
     expect(order).toEqual([ 'lock read', 'getRepresentation', 'error', 'unlock read', 'close' ]);
@@ -217,7 +217,7 @@ describe('A LockingResourceStore', (): void => {
 
   it('releases the lock on the resource when readable is destroyed.', async(): Promise<void> => {
     // Make the representation close
-    const representation = await store.getRepresentation(associatedId, {});
+    const representation = await store.getRepresentation(subjectId, {});
     representation.data.destroy();
     registerEventOrder(representation.data, 'close');
 
@@ -226,14 +226,14 @@ describe('A LockingResourceStore', (): void => {
 
     // Verify the lock was acquired and released at the right time
     expect(locker.withReadLock).toHaveBeenCalledTimes(1);
-    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(associatedId);
+    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(subjectId);
     expect(source.getRepresentation).toHaveBeenCalledTimes(1);
     expect(order).toEqual([ 'lock read', 'getRepresentation', 'close', 'unlock read' ]);
   });
 
   it('releases the lock only once when multiple events are triggered.', async(): Promise<void> => {
     // Read all data from the representation and trigger an additional close event
-    const representation = await store.getRepresentation(associatedId, {});
+    const representation = await store.getRepresentation(subjectId, {});
     representation.data.on('data', (): any => true);
     representation.data.prependListener('end', (): any => {
       order.push('end');
@@ -245,13 +245,13 @@ describe('A LockingResourceStore', (): void => {
 
     // Verify the lock was acquired and released at the right time
     expect(locker.withReadLock).toHaveBeenCalledTimes(1);
-    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(associatedId);
+    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(subjectId);
     expect(source.getRepresentation).toHaveBeenCalledTimes(1);
     expect(order).toEqual([ 'lock read', 'getRepresentation', 'end', 'unlock read' ]);
   });
 
   it('releases the lock on the resource when readable times out.', async(): Promise<void> => {
-    const representation = await store.getRepresentation(associatedId, {});
+    const representation = await store.getRepresentation(subjectId, {});
     registerEventOrder(representation.data, 'close');
     registerEventOrder(representation.data, 'error');
 
@@ -262,7 +262,7 @@ describe('A LockingResourceStore', (): void => {
 
     // Verify the lock was acquired and released at the right time
     expect(locker.withReadLock).toHaveBeenCalledTimes(1);
-    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(associatedId);
+    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(subjectId);
     expect(source.getRepresentation).toHaveBeenCalledTimes(1);
     expect(representation.data.destroy).toHaveBeenCalledTimes(1);
     expect(representation.data.destroy).toHaveBeenLastCalledWith(new Error('timeout'));
@@ -276,23 +276,23 @@ describe('A LockingResourceStore', (): void => {
       return new Promise(emptyFn);
     });
 
-    const prom = store.getRepresentation(associatedId, {});
+    const prom = store.getRepresentation(subjectId, {});
 
     timeoutTrigger.emit('timeout');
 
     await expect(prom).rejects.toThrow('timeout');
     expect(locker.withReadLock).toHaveBeenCalledTimes(1);
-    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(associatedId);
+    expect((locker.withReadLock as jest.Mock).mock.calls[0][0]).toEqual(subjectId);
     expect(source.getRepresentation).toHaveBeenCalledTimes(1);
     expect(order).toEqual([ 'lock read', 'useless get', 'timeout', 'unlock read' ]);
   });
 
   it('resourceExists should only acquire and release the read lock.', async(): Promise<void> => {
-    await store.resourceExists(associatedId);
+    await store.resourceExists(subjectId);
     expect(locker.withReadLock).toHaveBeenCalledTimes(1);
     expect(locker.withWriteLock).toHaveBeenCalledTimes(0);
     expect(source.resourceExists).toHaveBeenCalledTimes(1);
-    expect(source.resourceExists).toHaveBeenLastCalledWith(associatedId, undefined);
+    expect(source.resourceExists).toHaveBeenLastCalledWith(subjectId, undefined);
     expect(order).toEqual([ 'lock read', 'resourceExists', 'unlock read' ]);
   });
 });