[Vuejs]-Vue-cli jest setting problems when npm run serve

i try to help you but could you share jest.config.js or another config file.

Could you try this code on config file.

Attention: You must edit your folder path and if you don’t use Typescript, you delete ts and tsx.

#jest.config.js
module.exports = {
  preset: 'ts-jest',
  verbose: true,
  collectCoverage: true,
  collectCoverageFrom: [
    '**/*.{ts,vue}',
    '!**/node_modules/**',
    '!**/vendor/**'
  ],
  coverageReporters: [
    'json', 'lcov', 'text'
  ],
  moduleFileExtensions: [
    'js',
    'jsx',
    'json',
    'vue',
    'ts',
    'tsx'
  ],
  transform: {
    '^.+\\.vue$': 'vue-jest',
    '.+\\.(css|styl|less|sass|scss|svg|png|jpg|ttf|woff|woff2)$': 'jest-transform-stub',
    '^.+\\.tsx?$': 'ts-jest',
    '^.+\\.ts?$': 'ts-jest',
    '^.+\\.jsx?$': 'babel-jest',
    '^.+\\.js?$': 'babel-jest'
  },
  moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/src/$1',
    '^@/application/(.*)$': '<rootDir>/src/application/$1',
    '^@/common/(.*)$': '<rootDir>/src/common/$1',
    '^@/components/(.*)$': '<rootDir>/src/components/$1'
  },
  transformIgnorePatterns: [
    '/node_modules/(?!(tiny-slider)/(.*)$)'
  ],
  snapshotSerializers: [
    'jest-serializer-vue'
  ],
  testMatch: [
    '**/src/**/*.spec.(js|jsx|ts|tsx)',
    '**/src/application/**/*.spec.(js|jsx|ts|tsx)',
    '**/src/common/**/*.spec.(js|jsx|ts|tsx)',
    '**/src/components/**/*.spec.(js|jsx|ts|tsx)',
    '**/tests/unit/**/*.spec.(js|jsx|ts|tsx)'
  ],
  testURL: 'http://localhost:8080/'
}