Unable to run tests with "npm run test"

[fredtrentini]

I have a pull request idea, but before that I need to download the project and I'm planning to write a few tests for it just for safety.

After downloading the project, running npm i and npm run test, it throws this error

$ npm run test

> [email protected] pretest
> npm run compile && npm run lint


> [email protected] compile
> tsc -p ./

node_modules/@types/vscode/index.d.ts:6798:61 - error TS1005: ',' expected.

6798  export interface DiagnosticCollection extends Iterable<[uri: Uri, diagnostics: readonly Diagnostic[]]> {
                                                                 ~

node_modules/@types/vscode/index.d.ts:6798:79 - error TS1005: ',' expected.

6798  export interface DiagnosticCollection extends Iterable<[uri: Uri, diagnostics: readonly Diagnostic[]]> {
                                                                                   ~

node_modules/@types/vscode/index.d.ts:6798:90 - error TS1005: ',' expected.

6798  export interface DiagnosticCollection extends Iterable<[uri: Uri, diagnostics: readonly Diagnostic[]]> {
                                                                                              ~~~~~~~~~~

node_modules/@types/vscode/index.d.ts:6798:101 - error TS1011: An element access expression should take an argument.

6798  export interface DiagnosticCollection extends Iterable<[uri: Uri, diagnostics: readonly Diagnostic[]]> {
     

node_modules/@types/vscode/index.d.ts:6798:102 - error TS1005: ',' expected.

6798  export interface DiagnosticCollection extends Iterable<[uri: Uri, diagnostics: readonly Diagnostic[]]> {
                                                                                                          ~

node_modules/@types/vscode/index.d.ts:6798:103 - error TS1109: Expression expected.

6798  export interface DiagnosticCollection extends Iterable<[uri: Uri, diagnostics: readonly Diagnostic[]]> {
                                                                                                           ~

node_modules/@types/vscode/index.d.ts:6805:24 - error TS1005: ',' expected.

6805    readonly name: string;
                             ~

node_modules/@types/vscode/index.d.ts:6826:3 - error TS1005: ',' expected.

6826    set(entries: ReadonlyArray<[Uri, readonly Diagnostic[] | undefined]>): void;
        ~~~

node_modules/@types/vscode/index.d.ts:6834:3 - error TS1005: ',' expected.

6834    delete(uri: Uri): void;
        ~~~~~~

node_modules/@types/vscode/index.d.ts:6840:3 - error TS1005: ',' expected.

6840    clear(): void;
        ~~~~~

node_modules/@types/vscode/index.d.ts:6848:3 - error TS1005: ',' expected.

6848    forEach(callback: (uri: Uri, diagnostics: readonly Diagnostic[], collection: DiagnosticCollection) => any, thisArg?: any): void;
        ~~~~~~~

node_modules/@types/vscode/index.d.ts:6857:3 - error TS1005: ',' expected.

6857    get(uri: Uri): readonly Diagnostic[] | undefined;
        ~~~

node_modules/@types/vscode/index.d.ts:6866:3 - error TS1005: ',' expected.

6866    has(uri: Uri): boolean;
        ~~~

node_modules/@types/vscode/index.d.ts:6872:3 - error TS1005: ',' expected.

6872    dispose(): void;
        ~~~~~~~

node_modules/@types/vscode/index.d.ts:11262:57 - error TS1005: ',' expected.

11262  export class DataTransfer implements Iterable<[mimeType: string, item: DataTransferItem]> {
                                                              ~

node_modules/@types/vscode/index.d.ts:11262:71 - error TS1005: ',' expected.

11262  export class DataTransfer implements Iterable<[mimeType: string, item: DataTransferItem]> {
                                                                            ~

node_modules/@types/vscode/index.d.ts:11262:89 - error TS1005: ',' expected.

11262  export class DataTransfer implements Iterable<[mimeType: string, item: DataTransferItem]> {
                                                                                              ~

node_modules/@types/vscode/index.d.ts:11262:90 - error TS1109: Expression expected.

11262  export class DataTransfer implements Iterable<[mimeType: string, item: DataTransferItem]> {
                                                                                               ~

node_modules/@types/vscode/index.d.ts:11281:3 - error TS1005: ',' expected.

11281   set(mimeType: string, value: DataTransferItem): void;
        ~~~

node_modules/@types/vscode/index.d.ts:11289:3 - error TS1005: ',' expected.

11289   forEach(callbackfn: (item: DataTransferItem, mimeType: string, dataTransfer: DataTransfer) => void, thisArg?: any): void;
        ~~~~~~~

node_modules/@types/vscode/index.d.ts:11294:3 - error TS1005: ',' expected.

11294   [Symbol.iterator](): IterableIterator<[mimeType: string, item: DataTransferItem]>;
        ~

node_modules/@types/vscode/index.d.ts:11294:50 - error TS1005: ',' expected.

11294   [Symbol.iterator](): IterableIterator<[mimeType: string, item: DataTransferItem]>;
                                                       ~

node_modules/@types/vscode/index.d.ts:11294:82 - error TS1005: ',' expected.

11294   [Symbol.iterator](): IterableIterator<[mimeType: string, item: DataTransferItem]>;
                                                                                       ~

node_modules/@types/vscode/index.d.ts:11294:83 - error TS1136: Property assignment expected.

11294   [Symbol.iterator](): IterableIterator<[mimeType: string, item: DataTransferItem]>;
                                                                                        ~

node_modules/@types/vscode/index.d.ts:11294:84 - error TS1109: Expression expected.

11294   [Symbol.iterator](): IterableIterator<[mimeType: string, item: DataTransferItem]>;
                                                                                         ~

node_modules/@types/vscode/index.d.ts:12134:75 - error TS1005: ',' expected.

12134  export interface EnvironmentVariableCollection extends Iterable<[variable: string, mutator: EnvironmentVariableMutator]> {
                                                                                ~

node_modules/@types/vscode/index.d.ts:12134:92 - error TS1005: ',' expected.

12134  export interface EnvironmentVariableCollection extends Iterable<[variable: string, mutator: EnvironmentVariableMutator]> {
                                                                                                 ~

node_modules/@types/vscode/index.d.ts:12134:120 - error TS1005: ',' expected.

12134  export interface EnvironmentVariableCollection extends Iterable<[variable: string, mutator: EnvironmentVariableMutator]> {
                                                                                                                             ~

node_modules/@types/vscode/index.d.ts:12134:121 - error TS1109: Expression expected.

12134  export interface EnvironmentVariableCollection extends Iterable<[variable: string, mutator: EnvironmentVariableMutator]> {
                                                                                                                              ~

node_modules/@types/vscode/index.d.ts:12142:22 - error TS1005: ',' expected.

12142   persistent: boolean;
                           ~

node_modules/@types/vscode/index.d.ts:12148:51 - error TS1005: ',' expected.

12148   description: string | MarkdownString | undefined;
                                                        ~

node_modules/@types/vscode/index.d.ts:12174:3 - error TS1005: ',' expected.

12174   append(variable: string, value: string, options?: EnvironmentVariableMutatorOptions): void;
        ~~~~~~

node_modules/@types/vscode/index.d.ts:12187:3 - error TS1005: ',' expected.

12187   prepend(variable: string, value: string, options?: EnvironmentVariableMutatorOptions): void;
        ~~~~~~~

node_modules/@types/vscode/index.d.ts:12194:3 - error TS1005: ',' expected.

12194   get(variable: string): EnvironmentVariableMutator | undefined;
        ~~~

node_modules/@types/vscode/index.d.ts:12202:3 - error TS1005: ',' expected.

12202   forEach(callback: (variable: string, mutator: EnvironmentVariableMutator, collection: EnvironmentVariableCollection) => any, thisArg?: any): void;
        ~~~~~~~

node_modules/@types/vscode/index.d.ts:12209:3 - error TS1005: ',' expected.

12209   delete(variable: string): void;
        ~~~~~~

node_modules/@types/vscode/index.d.ts:12214:3 - error TS1005: ',' expected.

12214   clear(): void;
        ~~~~~

node_modules/@types/vscode/index.d.ts:17521:58 - error TS1005: ',' expected.

17521  export interface TestItemCollection extends Iterable<[id: string, testItem: TestItem]> {
                                                               ~

node_modules/@types/vscode/index.d.ts:17521:76 - error TS1005: ',' expected.

17521  export interface TestItemCollection extends Iterable<[id: string, testItem: TestItem]> {
                                                                                 ~

node_modules/@types/vscode/index.d.ts:17521:86 - error TS1005: ',' expected.

17521  export interface TestItemCollection extends Iterable<[id: string, testItem: TestItem]> {
                                                                                           ~

node_modules/@types/vscode/index.d.ts:17521:87 - error TS1109: Expression expected.

17521  export interface TestItemCollection extends Iterable<[id: string, testItem: TestItem]> {
                                                                                            ~

node_modules/@types/vscode/index.d.ts:17525:24 - error TS1005: ',' expected.

17525   readonly size: number;
                             ~

node_modules/@types/vscode/index.d.ts:17539:3 - error TS1005: ',' expected.

17539   forEach(callback: (item: TestItem, collection: TestItemCollection) => unknown, thisArg?: any): void;
        ~~~~~~~

node_modules/@types/vscode/index.d.ts:17546:3 - error TS1005: ',' expected.

17546   add(item: TestItem): void;
        ~~~

node_modules/@types/vscode/index.d.ts:17552:3 - error TS1005: ',' expected.

17552   delete(itemId: string): void;
        ~~~~~~

node_modules/@types/vscode/index.d.ts:17559:3 - error TS1005: ',' expected.

17559   get(itemId: string): TestItem | undefined;
        ~~~

node_modules/@types/vscode/index.d.ts:18329:1 - error TS1128: Declaration or statement expected.

18329 }
      ~


Found 47 errors.

At this point, I've been wrapping my head around this problem for more hours than I would like to admit, changing module versions and sometimes falling into different errors but not even once being able to succesfully run tests. What am I doing wrong?