Merge branch 'feature/move-to-ts' into 2.0.0

Author: thebestnom

.eslintignore

@@ -4,5 +4,5 @@ examples
 doc
 dist
 webpack.config.js
-*.ts
+*.d.ts
 babel.config.js

.eslintrc.yml

@@ -1,11 +1,12 @@
-parser: "@babel/eslint-parser"
+parser: "@typescript-eslint/parser"
 env:
   browser: true
   es6: true
   "jest/globals": true
 extends:
   - 'eslint:recommended'
   - 'plugin:jest/recommended'
+  - 'plugin:@typescript-eslint/recommended'
 globals:
   Atomics: readonly
   SharedArrayBuffer: readonly
@@ -16,6 +17,7 @@ ignorePatterns:
   - docs/
 plugins:
   - jest
+  - '@typescript-eslint'
 rules:
   indent:
     - error
@@ -34,3 +36,4 @@ rules:
     - always
   jest/no-mocks-import:
     - error
+  "@typescript-eslint/ban-types": off

__mocks__/neo4j-driver.ts

@@ -1,28 +1,33 @@
-const Neo4j = jest.requireActual('neo4j-driver');
+import type * as Neo4jType from 'neo4j-driver';
+import { ObservablePromise } from '../__tests__/testUtils';
+const Neo4j: typeof Neo4jType = jest.requireActual('neo4j-driver');
 
-export const mockSessionRun = jest.fn(() => {
-	const observablePromise = Promise.resolve();
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export const mockSessionRun: jest.Mock<ObservablePromise<unknown>, [cypher: string, b: Record<string, unknown>]> = jest.fn((..._) => {
+	const observablePromise: Partial<ObservablePromise<void>> = Promise.resolve();
+	// eslint-disable-next-line @typescript-eslint/no-empty-function
 	observablePromise.subscribe = jest.fn(() => {});
-	return observablePromise;
+	return observablePromise as ObservablePromise<void>;
 });
 
+// eslint-disable-next-line @typescript-eslint/no-empty-function
 export const mockSessionClose = jest.fn().mockImplementation(() => {});
 
-export const mockReadTransaction = jest.fn(function (callback) {
+export const mockReadTransaction = jest.fn(function (this: Neo4jType.Session, callback: (session: Neo4jType.Session) => void) {
 	return callback(this);
 });
 
-export const mockSession = jest.fn().mockImplementation(() => ({
+export const mockSession: jest.Mock<Partial<Neo4jType.Session>> = jest.fn().mockImplementation(() => ({
 	run: mockSessionRun,
 	close: mockSessionClose,
 	readTransaction: mockReadTransaction
 }));
 
 export const mockDriver = jest.spyOn(Neo4j, 'driver').mockImplementation(() => ({
-	session: mockSession
-}));
+	session: mockSession as unknown as (...args: unknown[]) => Neo4jType.Session
+}) as Neo4jType.Driver);
 
-export function clearAllMocks() {
+export function clearAllMocks(): void {
 	mockSessionClose.mockClear();
 	mockSessionRun.mockClear();
 	mockSession.mockClear();