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jest.config.js

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+/** @type {import('ts-jest').JestConfigWithTsJest} */
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  testMatch: ['**/src/**/*.spec.ts', '**/src/**/*.test.ts'],
+  clearMocks: true, // Automatically clear mock calls and instances between every test
+  resetMocks: true, // Automatically reset mock state between every test
+  restoreMocks: true, // Automatically restore mock state and implementation between every test
+};