chore: Update dependencies

.eslintrc.js

@@ -6,6 +6,8 @@ module.exports = {
     tsconfigRootDir: __dirname,
     project: [ './tsconfig.json', './test/tsconfig.json' ],
   },
+  // Ignoring js files (such as this one) since they seem to conflict with rules that require typing info
+  ignorePatterns: [ '*.js' ],
   globals: {
     AsyncIterable: 'readonly',
     NodeJS: 'readonly',
@@ -49,6 +51,7 @@ module.exports = {
     'class-methods-use-this': 'off',
     'comma-dangle': [ 'error', 'always-multiline' ],
     'dot-location': [ 'error', 'property' ],
+    'eslint-comments/disable-enable-pair': 'off',
     // Allow declaring overloads in TypeScript (https://eslint.org/docs/rules/func-style)
     'func-style': [ 'error', 'declaration' ],
     'generator-star-spacing': [ 'error', 'after' ],
@@ -74,7 +77,8 @@ module.exports = {
     'unicorn/catch-error-name': 'off',
     'unicorn/import-index': 'off',
     'unicorn/import-style': 'off',
-    // This prevents some functional programming paradigms
+    // The next 2 some functional programming paradigms
+    'unicorn/no-array-callback-reference': 'off',
     'unicorn/no-fn-reference-in-iterator': 'off',
     'unicorn/no-object-as-default-parameter': 'off',
     'unicorn/numeric-separators-style': 'off',

package.json

@@ -82,90 +82,90 @@
     "@types/arrayify-stream": "^1.0.0",
     "@types/async-lock": "^1.1.2",
     "@types/bcrypt": "^5.0.0",
-    "@types/cors": "^2.8.9",
+    "@types/cors": "^2.8.10",
     "@types/end-of-stream": "^1.4.0",
     "@types/mime-types": "^2.1.0",
-    "@types/n3": "^1.4.4",
+    "@types/n3": "^1.10.0",
-    "@types/node": "^14.10.2",
+    "@types/node": "^15.12.5",
-    "@types/nodemailer": "^6.4.0",
+    "@types/nodemailer": "^6.4.2",
-    "@types/pump": "^1.1.0",
+    "@types/pump": "^1.1.1",
     "@types/punycode": "^2.1.0",
-    "@types/rdf-js": "^4.0.0",
+    "@types/rdf-js": "^4.0.2",
-    "@types/rdfjs__fetch": "^2.0.2",
+    "@types/rdfjs__fetch": "^2.0.3",
-    "@types/rdfjs__fetch-lite": "^2.0.2",
+    "@types/rdfjs__fetch-lite": "^2.0.3",
-    "@types/redis": "^2.8.28",
+    "@types/redis": "^2.8.30",
     "@types/redlock": "^4.0.1",
-    "@types/sparqljs": "^3.1.0",
+    "@types/sparqljs": "^3.1.2",
     "@types/streamify-array": "^1.0.0",
     "@types/url-join": "^4.0.0",
     "@types/uuid": "^8.3.0",
-    "@types/ws": "^7.4.0",
+    "@types/ws": "^7.4.5",
-    "@types/yargs": "^16.0.0",
+    "@types/yargs": "^17.0.0",
     "arrayify-stream": "^1.0.0",
-    "async-lock": "^1.2.4",
+    "async-lock": "^1.3.0",
-    "bcrypt": "^5.0.0",
+    "bcrypt": "^5.0.1",
-    "componentsjs": "^4.1.0",
+    "componentsjs": "^4.3.0",
     "cors": "^2.8.5",
-    "ejs": "^3.1.5",
+    "ejs": "^3.1.6",
     "end-of-stream": "^1.4.4",
     "escape-string-regexp": "^4.0.0",
-    "fetch-sparql-endpoint": "^2.0.0",
+    "fetch-sparql-endpoint": "^2.0.1",
-    "handlebars": "^4.7.6",
+    "handlebars": "^4.7.7",
     "jose": "^3.11.6",
-    "mime-types": "^2.1.27",
+    "mime-types": "^2.1.31",
-    "n3": "^1.8.0",
+    "n3": "^1.10.0",
-    "nodemailer": "^6.4.17",
+    "nodemailer": "^6.6.2",
-    "oidc-provider": "^6.29.8",
+    "oidc-provider": "^6.31.1",
     "pump": "^3.0.0",
     "punycode": "^2.1.1",
-    "rdf-parse": "^1.7.0",
+    "rdf-parse": "^1.8.1",
     "rdf-serialize": "^1.1.0",
-    "redis": "^3.0.2",
+    "redis": "^3.1.2",
     "redlock": "^4.2.0",
     "sparqlalgebrajs": "^3.0.0",
-    "sparqljs": "^3.1.2",
+    "sparqljs": "^3.4.2",
     "streamify-array": "^1.0.1",
     "url-join": "^4.0.1",
-    "uuid": "^8.3.0",
+    "uuid": "^8.3.2",
     "winston": "^3.3.3",
     "winston-transport": "^4.4.0",
-    "ws": "^7.4.0",
+    "ws": "^7.5.1",
-    "yargs": "^16.0.0"
+    "yargs": "^17.0.1"
   },
   "devDependencies": {
-    "@inrupt/solid-client-authn-node": "^1.8.1",
+    "@inrupt/solid-client-authn-node": "^1.9.1",
-    "@microsoft/tsdoc-config": "^0.15.0",
+    "@microsoft/tsdoc-config": "^0.15.2",
-    "@tsconfig/node12": "^1.0.7",
+    "@tsconfig/node12": "^1.0.9",
-    "@types/cheerio": "^0.22.27",
+    "@types/cheerio": "^0.22.29",
-    "@types/ejs": "^3.0.5",
+    "@types/ejs": "^3.0.6",
-    "@types/jest": "^26.0.13",
+    "@types/jest": "^26.0.23",
     "@types/rimraf": "^3.0.0",
     "@types/set-cookie-parser": "^2.4.0",
-    "@types/supertest": "^2.0.10",
+    "@types/supertest": "^2.0.11",
-    "@typescript-eslint/eslint-plugin": "^4.1.1",
+    "@typescript-eslint/eslint-plugin": "^4.28.1",
-    "@typescript-eslint/parser": "^4.1.1",
+    "@typescript-eslint/parser": "^4.28.1",
-    "cheerio": "^1.0.0-rc.5",
+    "cheerio": "^1.0.0-rc.10",
-    "componentsjs-generator": "^2.1.0",
+    "componentsjs-generator": "^2.4.0",
-    "cross-fetch": "^3.0.6",
+    "cross-fetch": "^3.1.4",
-    "eslint": "^7.9.0",
+    "eslint": "^7.29.0",
     "eslint-config-es": "^3.20.3",
-    "eslint-import-resolver-typescript": "^2.3.0",
+    "eslint-import-resolver-typescript": "^2.4.0",
-    "eslint-plugin-import": "^2.22.0",
+    "eslint-plugin-import": "^2.23.4",
-    "eslint-plugin-jest": "^24.1.0",
+    "eslint-plugin-jest": "^24.3.6",
-    "eslint-plugin-tsdoc": "^0.2.7",
+    "eslint-plugin-tsdoc": "^0.2.14",
-    "eslint-plugin-unused-imports": "^1.0.0",
+    "eslint-plugin-unused-imports": "^1.1.1",
-    "husky": "^4.2.5",
+    "husky": "^4.3.8",
-    "jest": "^27.0.3",
+    "jest": "^27.0.6",
-    "jest-rdf": "^1.5.0",
+    "jest-rdf": "^1.6.0",
     "manual-git-changelog": "^1.0.1",
-    "node-mocks-http": "^1.8.1",
+    "node-mocks-http": "^1.10.1",
-    "nodemon": "^2.0.4",
+    "nodemon": "^2.0.7",
     "rimraf": "^3.0.2",
     "set-cookie-parser": "^2.4.8",
-    "stream-to-string": "^1.1.0",
+    "stream-to-string": "^1.2.0",
-    "supertest": "^6.0.0",
+    "supertest": "^6.1.3",
-    "ts-jest": "^27.0.2",
+    "ts-jest": "^27.0.3",
-    "typedoc": "^0.21.0",
+    "typedoc": "^0.21.2",
-    "typescript": "^4.0.2"
+    "typescript": "^4.3.4"
   }
 }

src/authentication/BearerWebIdExtractor.ts

@@ -30,7 +30,7 @@ export class BearerWebIdExtractor extends CredentialsExtractor {
     const { headers: { authorization }} = request;
 
     try {
-      const { webid: webId } = await this.verify(authorization as string);
+      const { webid: webId } = await this.verify(authorization!);
       this.logger.info(`Verified WebID via Bearer access token: ${webId}`);
       return { webId };
     } catch (error: unknown) {

src/authentication/DPoPWebIdExtractor.ts

@@ -45,7 +45,7 @@ export class DPoPWebIdExtractor extends CredentialsExtractor {
     // and extract the WebID provided by the client
     try {
       const { webid: webId } = await this.verify(
-        authorization as string,
+        authorization!,
         {
           header: dpop as string,
           method: method as RequestMethod,

src/authentication/UnsecureWebIdExtractor.ts

@@ -18,7 +18,7 @@ export class UnsecureWebIdExtractor extends CredentialsExtractor {
   }
 
   public async handle({ headers }: HttpRequest): Promise<Credentials> {
-    const webId = /^WebID\s+(.*)/u.exec(headers.authorization as string)![1];
+    const webId = /^WebID\s+(.*)/u.exec(headers.authorization!)![1];
     this.logger.info(`Agent unsecurely claims to be ${webId}`);
     return { webId };
   }

src/identity/configuration/KeyConfigurationFactory.ts

@@ -46,6 +46,8 @@ export class KeyConfigurationFactory implements ConfigurationFactory {
     // If they are not, generate and save them
     const { privateKey } = await generateKeyPair('RS256');
     const jwk = await fromKeyLike(privateKey);
+    // Required for Solid authn client
+    jwk.alg = 'RS256';
     // In node v15.12.0 the JWKS does not get accepted because the JWK is not a plain object,
     // which is why we convert it into a plain object here.
     // Potentially this can be changed at a later point in time to `{ keys: [ jwk ]}`.

src/identity/interaction/SessionHttpHandler.ts

@@ -19,6 +19,6 @@ export class SessionHttpHandler extends InteractionHttpHandler {
     if (!details.session || !details.session.accountId) {
       throw new NotImplementedHttpError('Only confirm actions with a session and accountId are supported');
     }
-    await this.interactionCompleter.handleSafe({ ...input, webId: details.session.accountId });
+    await this.interactionCompleter.handleSafe({ ...input, webId: details.session.accountId as any });
   }
 }

src/identity/interaction/email-password/handler/RegistrationHandler.ts

@@ -188,16 +188,16 @@ export class RegistrationHandler extends HttpHandler {
    * Verifies that all the data combinations make sense.
    */
   private validateInput(parsed: NodeJS.Dict<string>): ParseResult {
-    const { email, password, confirmPassword, podName, webId } = parsed;
+    const { email, password, confirmPassword, podName, webId, createWebId, register, createPod } = parsed;
 
     assert(typeof email === 'string' && email.length > 0 && emailRegex.test(email),
       'A valid e-mail address is required');
 
     const result: ParseResult = {
       email,
-      createWebId: Boolean(parsed.createWebId),
+      createWebId: Boolean(createWebId),
-      register: Boolean(parsed.register),
+      register: Boolean(register),
-      createPod: Boolean(parsed.createPod),
+      createPod: Boolean(createPod),
       data: parsed,
     };
 

src/identity/storage/ExpiringAdapterFactory.ts

@@ -54,7 +54,7 @@ export class ExpiringAdapter implements Adapter {
     if (payload.grantId) {
       storagePromises.push(
         (async(): Promise<void> => {
-          const grantKey = this.grantKeyFor(payload.grantId as string);
+          const grantKey = this.grantKeyFor(payload.grantId!);
           const grants = (await this.storage.get(grantKey) || []) as string[];
           grants.push(key);
           await this.storage.set(grantKey, grants, expires);

src/index.ts

@@ -200,6 +200,7 @@ export * from './server/BaseHttpServerFactory';
 export * from './server/HttpHandler';
 export * from './server/HttpRequest';
 export * from './server/HttpResponse';
+export * from './server/HttpServerFactory';
 export * from './server/WebSocketServerFactory';
 export * from './server/WebSocketHandler';
 

src/init/AppRunner.ts

@@ -7,6 +7,7 @@ import yargs from 'yargs';
 import { getLoggerFor } from '../logging/LogUtil';
 import { absoluteFilePath, ensureTrailingSlash, joinFilePath } from '../util/PathUtil';
 import type { App } from './App';
+
 export class AppRunner {
   private readonly logger = getLoggerFor(this);
 
@@ -56,7 +57,8 @@ export class AppRunner {
     stderr?: WriteStream;
   } = {}): void {
     // Parse the command-line arguments
-    const { argv: params } = yargs(argv.slice(2))
+    // eslint-disable-next-line no-sync
+    const params = yargs(argv.slice(2))
       .strict()
       .usage('node ./bin/server.js [args]')
       .check((args): boolean => {
@@ -84,7 +86,7 @@ export class AppRunner {
         sparqlEndpoint: { type: 'string', alias: 's', requiresArg: true },
         podConfigJson: { type: 'string', default: './pod-config.json', requiresArg: true },
       })
-      .help();
+      .parseSync();
 
     // Gather settings for instantiating the server
     const loaderProperties: IComponentsManagerBuilderOptions<App> = {

src/storage/DataAccessorBasedStore.ts

@@ -207,11 +207,9 @@ export class DataAccessorBasedStore implements ResourceStore {
     // if it contains no resources. If the container contains resources,
     // the server MUST respond with the 409 status code and response body describing the error."
     // https://solid.github.io/specification/protocol#deleting-resources
-    if (isContainerIdentifier(identifier)) {
+    // Auxiliary resources are not counted when deleting a container since they will also be deleted.
-      // Auxiliary resources are not counted when deleting a container since they will also be deleted
+    if (isContainerIdentifier(identifier) && await this.hasProperChildren(identifier)) {
-      if (await this.hasProperChildren(identifier)) {
+      throw new ConflictHttpError('Can only delete empty containers.');
-        throw new ConflictHttpError('Can only delete empty containers.');
-      }
     }
     // Solid, §5.4: "When a contained resource is deleted, the server MUST also delete the associated auxiliary
     // resources"
@@ -291,9 +289,8 @@ export class DataAccessorBasedStore implements ResourceStore {
     createContainers?: boolean): Promise<ResourceIdentifier[]> {
     // Make sure the metadata has the correct identifier and correct type quads
     // Need to do this before handling container data to have the correct identifier
-    const { metadata } = representation;
+    representation.metadata.identifier = DataFactory.namedNode(identifier.path);
-    metadata.identifier = DataFactory.namedNode(identifier.path);
+    addResourceMetadata(representation.metadata, isContainer);
-    addResourceMetadata(metadata, isContainer);
 
     // Validate container data
     if (isContainer) {

src/storage/conversion/ChainedConverter.ts

@@ -142,8 +142,8 @@ export class ChainedConverter extends RepresentationConverter {
       return input.representation;
     }
 
-    const { path } = match;
+    const { path, inType, outType } = match;
-    this.logger.debug(`Converting ${match.inType} -> ${[ ...path.intermediateTypes, match.outType ].join(' -> ')}.`);
+    this.logger.debug(`Converting ${inType} -> ${[ ...path.intermediateTypes, outType ].join(' -> ')}.`);
 
     const args = { ...input };
     for (let i = 0; i < path.converters.length - 1; ++i) {
@@ -152,7 +152,7 @@ export class ChainedConverter extends RepresentationConverter {
       args.representation = await path.converters[i].handle(args);
     }
     // For the last converter we set the preferences to the best output type
-    args.preferences = { type: { [match.outType]: 1 }};
+    args.preferences = { type: { [outType]: 1 }};
     return path.converters.slice(-1)[0].handle(args);
   }
 

src/storage/conversion/IfNeededConverter.ts

@@ -44,7 +44,7 @@ export class IfNeededConverter extends RepresentationConverter {
     const noMatchingMediaType = !matchesMediaPreferences(contentType, preferences.type);
     if (noMatchingMediaType) {
       this.logger.debug(`Conversion needed for ${identifier
-        .path} from ${representation.metadata.contentType} to satisfy ${!preferences.type ?
+        .path} from ${contentType} to satisfy ${!preferences.type ?
         '""' :
         Object.entries(preferences.type).map(([ value, weight ]): string => `${value};q=${weight}`).join(', ')}`);
     }

src/storage/patch/SparqlUpdatePatchHandler.ts

@@ -142,6 +142,6 @@ export class SparqlUpdatePatchHandler extends ConvertingPatchHandler {
 
     this.logger.debug(`${result.size} quads will be stored to ${identifier.path}.`);
 
-    return new BasicRepresentation(result.match() as Readable, metadata);
+    return new BasicRepresentation(result.match() as unknown as Readable, metadata);
   }
 }

src/storage/routing/ConvertingRouterRule.ts

@@ -39,7 +39,7 @@ export class ConvertingRouterRule extends RouterRule {
         entry.supportChecker.supports({ identifier, representation }));
     } else {
       // No content-type given so we can only check if one of the stores has data for the identifier
-      store = await this.findStore(async(entry): Promise<boolean> => entry.store.resourceExists(input.identifier));
+      store = await this.findStore(async(entry): Promise<boolean> => entry.store.resourceExists(identifier));
     }
     return store;
   }

src/util/PathUtil.ts

@@ -144,7 +144,7 @@ export function isContainerIdentifier(identifier: ResourceIdentifier): boolean {
  * E.g., `http://test.com/` results in `{ scheme: 'http://', rest: 'test.com/' }`.
  * @param url - String to parse.
  */
-export function extractScheme(url: string): { scheme: string; rest: string} {
+export function extractScheme(url: string): { scheme: string; rest: string } {
   const match = /^([^:]+:\/\/)(.*)$/u.exec(url)!;
   return { scheme: match[1], rest: match[2] };
 }

src/util/Vocabularies.ts

@@ -1,4 +1,4 @@
-/* eslint-disable @typescript-eslint/naming-convention, function-paren-newline */
+/* eslint-disable function-paren-newline */
 import { namedNode } from '@rdfjs/data-model';
 import type { NamedNode } from 'rdf-js';
 

test/integration/IdentityTestState.ts

@@ -37,7 +37,6 @@ export class IdentityTestState {
    * @param body - Body to send along.
    * @param contentType - Content-Type of the body.
    */
-  // eslint-disable-next-line default-param-last
   public async fetchIdp(url: string, method = 'GET', body?: string, contentType?: string): Promise<Response> {
     const options = { method, headers: { cookie: this.cookie }, body, redirect: 'manual' } as any;
     if (contentType) {

test/unit/ldp/http/metadata/ConstantMetadataWriter.test.ts

@@ -1,11 +1,12 @@
 import { createResponse } from 'node-mocks-http';
 import { ConstantMetadataWriter } from '../../../../../src/ldp/http/metadata/ConstantMetadataWriter';
+import type { HttpResponse } from '../../../../../src/server/HttpResponse';
 
 describe('A ConstantMetadataWriter', (): void => {
   const writer = new ConstantMetadataWriter({ 'custom-Header': 'X', other: 'Y' });
 
   it('adds new headers.', async(): Promise<void> => {
-    const response = createResponse();
+    const response = createResponse() as HttpResponse;
 
     await expect(writer.handle({ response })).resolves.toBeUndefined();
 
@@ -13,7 +14,7 @@ describe('A ConstantMetadataWriter', (): void => {
   });
 
   it('extends existing headers.', async(): Promise<void> => {
-    const response = createResponse();
+    const response = createResponse() as HttpResponse;
     response.setHeader('Other', 'A');
 
     await expect(writer.handle({ response })).resolves.toBeUndefined();

test/unit/ldp/http/metadata/LinkRelMetadataWriter.test.ts

@@ -1,13 +1,14 @@
 import { createResponse } from 'node-mocks-http';
 import { LinkRelMetadataWriter } from '../../../../../src/ldp/http/metadata/LinkRelMetadataWriter';
 import { RepresentationMetadata } from '../../../../../src/ldp/representation/RepresentationMetadata';
+import type { HttpResponse } from '../../../../../src/server/HttpResponse';
 import { LDP, RDF } from '../../../../../src/util/Vocabularies';
 
 describe('A LinkRelMetadataWriter', (): void => {
   const writer = new LinkRelMetadataWriter({ [RDF.type]: 'type', dummy: 'dummy' });
 
   it('adds the correct link headers.', async(): Promise<void> => {
-    const response = createResponse();
+    const response = createResponse() as HttpResponse;
     const metadata = new RepresentationMetadata({ [RDF.type]: LDP.terms.Resource, unused: 'text' });
     await expect(writer.handle({ response, metadata })).resolves.toBeUndefined();
     expect(response.getHeaders()).toEqual({ link: `<${LDP.Resource}>; rel="type"` });

test/unit/ldp/http/metadata/MappedMetadataWriter.test.ts

@@ -1,13 +1,14 @@
 import { createResponse } from 'node-mocks-http';
 import { MappedMetadataWriter } from '../../../../../src/ldp/http/metadata/MappedMetadataWriter';
 import { RepresentationMetadata } from '../../../../../src/ldp/representation/RepresentationMetadata';
+import type { HttpResponse } from '../../../../../src/server/HttpResponse';
 import { CONTENT_TYPE } from '../../../../../src/util/Vocabularies';
 
 describe('A MappedMetadataWriter', (): void => {
   const writer = new MappedMetadataWriter({ [CONTENT_TYPE]: 'content-type', dummy: 'dummy' });
 
   it('adds metadata to the corresponding header.', async(): Promise<void> => {
-    const response = createResponse();
+    const response = createResponse() as HttpResponse;
     const metadata = new RepresentationMetadata({ [CONTENT_TYPE]: 'text/turtle', unused: 'text' });
     await expect(writer.handle({ response, metadata })).resolves.toBeUndefined();
     expect(response.getHeaders()).toEqual({ 'content-type': 'text/turtle' });

test/unit/ldp/http/metadata/WacAllowMetadataWriter.test.ts

@@ -9,7 +9,7 @@ describe('A WacAllowMetadataWriter', (): void => {
   let response: HttpResponse;
 
   beforeEach(async(): Promise<void> => {
-    response = createResponse();
+    response = createResponse() as HttpResponse;
   });
 
   it('adds no header if there is no relevant metadata.', async(): Promise<void> => {

test/unit/ldp/http/metadata/WwwAuthMetadataWriter.test.ts

@@ -10,7 +10,7 @@ describe('A WwwAuthMetadataWriter', (): void => {
   let response: HttpResponse;
 
   beforeEach(async(): Promise<void> => {
-    response = createResponse();
+    response = createResponse() as HttpResponse;
   });
 
   it('adds no header if there is no relevant metadata.', async(): Promise<void> => {

test/unit/ldp/representation/RepresentationMetadata.test.ts

@@ -112,8 +112,8 @@ describe('A RepresentationMetadata', (): void => {
       metadata.setMetadata(other);
 
       expect(metadata.identifier).toEqual(other.identifier);
-      expect(metadata.quads()).toBeRdfIsomorphic(inputQuads.concat([
+      expect(metadata.quads()).toBeRdfIsomorphic([ ...inputQuads,
-        quad(identifier, namedNode('test:pred'), literal('objVal')) ]));
+        quad(identifier, namedNode('test:pred'), literal('objVal')) ]);
     });
 
     it('updates its identifier when copying metadata.', async(): Promise<void> => {
@@ -134,7 +134,7 @@ describe('A RepresentationMetadata', (): void => {
         quad(namedNode('random'), namedNode('new'), namedNode('triple')),
       ];
       metadata.addQuads(newQuads);
-      expect(metadata.quads()).toBeRdfIsomorphic(newQuads.concat(inputQuads));
+      expect(metadata.quads()).toBeRdfIsomorphic([ ...newQuads, ...inputQuads ]);
     });
 
     it('can remove quads.', async(): Promise<void> => {
@@ -145,13 +145,13 @@ describe('A RepresentationMetadata', (): void => {
     it('can add a single value for a predicate.', async(): Promise<void> => {
       const newQuad = quad(identifier, namedNode('new'), namedNode('triple'));
       metadata.add(newQuad.predicate as NamedNode, newQuad.object as NamedNode);
-      expect(metadata.quads()).toBeRdfIsomorphic([ newQuad ].concat(inputQuads));
+      expect(metadata.quads()).toBeRdfIsomorphic([ newQuad, ...inputQuads ]);
     });
 
     it('can add single values as string.', async(): Promise<void> => {
       const newQuad = quad(identifier, namedNode('new'), literal('triple'));
       metadata.add(newQuad.predicate as NamedNode, newQuad.object.value);
-      expect(metadata.quads()).toBeRdfIsomorphic([ newQuad ].concat(inputQuads));
+      expect(metadata.quads()).toBeRdfIsomorphic([ newQuad, ...inputQuads ]);
     });
 
     it('can add multiple values for a predicate.', async(): Promise<void> => {
@@ -160,7 +160,7 @@ describe('A RepresentationMetadata', (): void => {
         quad(identifier, namedNode('new'), namedNode('triple2')),
       ];
       metadata.add(namedNode('new'), [ namedNode('triple'), namedNode('triple2') ]);
-      expect(metadata.quads()).toBeRdfIsomorphic(newQuads.concat(inputQuads));
+      expect(metadata.quads()).toBeRdfIsomorphic([ ...newQuads, ...inputQuads ]);
     });
 
     it('can remove a single value for a predicate.', async(): Promise<void> => {

test/unit/server/middleware/CorsHandler.test.ts

@@ -1,4 +1,5 @@
 import { createRequest, createResponse } from 'node-mocks-http';
+import type { HttpResponse } from '../../../../src/server/HttpResponse';
 import { CorsHandler } from '../../../../src/server/middleware/CorsHandler';
 import { guardStream } from '../../../../src/util/GuardedStream';
 
@@ -7,7 +8,7 @@ describe('a CorsHandler', (): void => {
     const handler = new CorsHandler();
 
     const request = guardStream(createRequest());
-    const response = createResponse();
+    const response = createResponse() as HttpResponse;
     await handler.handleSafe({ request, response });
 
     expect(response.getHeaders()).toEqual(expect.objectContaining({
@@ -23,7 +24,7 @@ describe('a CorsHandler', (): void => {
         origin: 'example.org',
       },
     }));
-    const response = createResponse();
+    const response = createResponse() as HttpResponse;
     await handler.handleSafe({ request, response });
 
     expect(response.getHeaders()).toEqual(expect.objectContaining({
@@ -37,7 +38,7 @@ describe('a CorsHandler', (): void => {
     });
 
     const request = guardStream(createRequest());
-    const response = createResponse();
+    const response = createResponse() as HttpResponse;
     await handler.handleSafe({ request, response });
 
     expect(response.getHeaders()).toEqual(expect.objectContaining({

test/unit/server/middleware/HeaderHandler.test.ts

@@ -1,4 +1,5 @@
 import { createRequest, createResponse } from 'node-mocks-http';
+import type { HttpResponse } from '../../../../src/server/HttpResponse';
 import { HeaderHandler } from '../../../../src/server/middleware/HeaderHandler';
 import { guardStream } from '../../../../src/util/GuardedStream';
 
@@ -8,7 +9,7 @@ describe('a HeaderHandler', (): void => {
     const handler = new HeaderHandler(headers);
 
     const request = guardStream(createRequest());
-    const response = createResponse();
+    const response = createResponse() as HttpResponse;
     await handler.handleSafe({ request, response });
 
     expect(response.getHeaders()).toEqual(expect.objectContaining(headers));

test/unit/server/middleware/StaticAssetHandler.test.ts

@@ -122,7 +122,7 @@ describe('A StaticAssetHandler', (): void => {
   it('throws a 404 when the asset does not exist.', async(): Promise<void> => {
     const request = { method: 'GET', url: '/foo/bar/main' };
     const response = createResponse({ eventEmitter: EventEmitter });
-    const error = new Error() as SystemError;
+    const error = new Error('no file') as SystemError;
     error.code = 'ENOENT';
     const stream = new PassThrough();
     stream._read = (): any => stream.emit('error', error);
@@ -135,7 +135,7 @@ describe('A StaticAssetHandler', (): void => {
   it('throws a 404 when the asset is folder.', async(): Promise<void> => {
     const request = { method: 'GET', url: '/foo/bar/main' };
     const response = createResponse({ eventEmitter: EventEmitter });
-    const error = new Error() as SystemError;
+    const error = new Error('is directory') as SystemError;
     error.code = 'EISDIR';
     const stream = new PassThrough();
     stream._read = (): any => stream.emit('error', error);
@@ -149,7 +149,7 @@ describe('A StaticAssetHandler', (): void => {
     const request = { method: 'GET', url: '/foo/bar/main' };
     const response = createResponse({ eventEmitter: EventEmitter });
     const responseEnd = new Promise((resolve): any => response.on('end', resolve));
-    const error = new Error();
+    const error = new Error('random error');
     const stream = new PassThrough();
     stream._read = (): any => stream.emit('error', error);
     createReadStream.mockReturnValueOnce(stream as any);

test/unit/server/middleware/WebSocketAdvertiser.test.ts

@@ -1,31 +1,32 @@
 import { createResponse } from 'node-mocks-http';
+import type { HttpResponse } from '../../../../src/server/HttpResponse';
 import { WebSocketAdvertiser } from '../../../../src/server/middleware/WebSocketAdvertiser';
 
 describe('A WebSocketAdvertiser', (): void => {
   it('writes a ws: socket when given an http: URL.', async(): Promise<void> => {
     const writer = new WebSocketAdvertiser('http://test.example/');
-    const response = createResponse();
+    const response = createResponse() as HttpResponse;
     await writer.handle({ response } as any);
     expect(response.getHeaders()).toEqual({ 'updates-via': 'ws://test.example/' });
   });
 
   it('writes a ws: socket when given a ws: URL.', async(): Promise<void> => {
     const writer = new WebSocketAdvertiser('ws://test.example/');
-    const response = createResponse();
+    const response = createResponse() as HttpResponse;
     await writer.handle({ response } as any);
     expect(response.getHeaders()).toEqual({ 'updates-via': 'ws://test.example/' });
   });
 
   it('writes a wss: socket when given an https: URL.', async(): Promise<void> => {
     const writer = new WebSocketAdvertiser('https://test.example/');
-    const response = createResponse();
+    const response = createResponse() as HttpResponse;
     await writer.handle({ response } as any);
     expect(response.getHeaders()).toEqual({ 'updates-via': 'wss://test.example/' });
   });
 
   it('writes a wss: socket when given a wss: URL.', async(): Promise<void> => {
     const writer = new WebSocketAdvertiser('wss://test.example/');
-    const response = createResponse();
+    const response = createResponse() as HttpResponse;
     await writer.handle({ response } as any);
     expect(response.getHeaders()).toEqual({ 'updates-via': 'wss://test.example/' });
   });

test/unit/server/util/RenderEjsHandler.test.ts

@@ -9,7 +9,7 @@ describe('RenderEjsHandler', (): void => {
   let templateFile: string;
 
   beforeEach((): void => {
-    response = createResponse();
+    response = createResponse() as HttpResponse;
     templatePath = joinFilePath(__dirname, '../../../assets/idp');
     templateFile = 'testHtml.ejs';
   });

test/unit/server/util/RouterHandler.test.ts

@@ -15,7 +15,7 @@ describe('RouterHandler', (): void => {
     genericRequest = guardStream(createRequest({
       url: '/test',
     }));
-    genericResponse = createResponse();
+    genericResponse = createResponse() as HttpResponse;
     genericInput = {
       request: genericRequest,
       response: genericResponse,

test/unit/storage/accessors/SparqlDataAccessor.test.ts

@@ -265,7 +265,7 @@ describe('A SparqlDataAccessor', (): void => {
     fetchError = 'error';
     await expect(accessor.getMetadata({ path: 'http://identifier' })).rejects.toBe(fetchError);
 
-    fetchError = new Error();
+    fetchError = new Error('read error');
     await expect(accessor.getMetadata({ path: 'http://identifier' })).rejects.toThrow(fetchError);
 
     fetchError = undefined;
@@ -278,7 +278,7 @@ describe('A SparqlDataAccessor', (): void => {
     updateError = 'error';
     await expect(accessor.writeContainer(identifier, metadata)).rejects.toBe(updateError);
 
-    updateError = new Error();
+    updateError = new Error('write error');
     await expect(accessor.writeContainer(identifier, metadata)).rejects.toThrow(updateError);
 
     updateError = undefined;

test/unit/storage/conversion/ErrorToQuadConverter.test.ts

@@ -19,7 +19,7 @@ describe('An ErrorToQuadConverter', (): void => {
   });
 
   it('does not support multiple errors.', async(): Promise<void> => {
-    const representation = new BasicRepresentation([ new Error(), new Error() ], 'internal/error', false);
+    const representation = new BasicRepresentation([ new Error('a'), new Error('b') ], 'internal/error', false);
     const prom = converter.handle({ identifier, representation, preferences });
     await expect(prom).rejects.toThrow('Only single errors are supported.');
     await expect(prom).rejects.toThrow(InternalServerError);

test/unit/storage/conversion/ErrorToTemplateConverter.test.ts

@@ -32,7 +32,7 @@ describe('An ErrorToTemplateConverter', (): void => {
   });
 
   it('does not support multiple errors.', async(): Promise<void> => {
-    const representation = new BasicRepresentation([ new Error(), new Error() ], 'internal/error', false);
+    const representation = new BasicRepresentation([ new Error('a'), new Error('b') ], 'internal/error', false);
     const prom = converter.handle({ identifier, representation, preferences });
     await expect(prom).rejects.toThrow('Only single errors are supported.');
     await expect(prom).rejects.toThrow(InternalServerError);

test/unit/storage/patch/SparqlUpdatePatchHandler.test.ts

@@ -105,10 +105,10 @@ describe('A SparqlUpdatePatchHandler', (): void => {
 
   it('handles INSERT DATA updates.', async(): Promise<void> => {
     await handle(fulfilledDataInsert);
-    expect(await basicChecks(startQuads.concat(
+    expect(await basicChecks([ ...startQuads,
-      [ quad(namedNode('http://test.com/s1'), namedNode('http://test.com/p1'), namedNode('http://test.com/o1')),
+      quad(namedNode('http://test.com/s1'), namedNode('http://test.com/p1'), namedNode('http://test.com/o1')),
-        quad(namedNode('http://test.com/s2'), namedNode('http://test.com/p2'), namedNode('http://test.com/o2')) ],
+      quad(namedNode('http://test.com/s2'), namedNode('http://test.com/p2'), namedNode('http://test.com/o2')),
-    ))).toBe(true);
+    ])).toBe(true);
   });
 
   it('handles DELETE DATA updates.', async(): Promise<void> => {

test/util/Util.ts

@@ -4,7 +4,6 @@ import { PassThrough } from 'stream';
 import streamifyArray from 'streamify-array';
 import type { SystemError } from '../../src/util/errors/SystemError';
 
-/* eslint-disable @typescript-eslint/naming-convention */
 const portNames = [
   // Integration
   'DynamicPods',