azz/jest-runner-tsc

tests are not run properly

Closed this issue · 2 comments

Hotell commented

When this runner is used tests are not executed as they should 👀

configs:

with transform: ts-jest

const { defaults } = require('jest-config')

const config = {
  transform: {
  '^.+\\.(ts|tsx)$': 'ts-jest'
 },
  testMatch: [
    ...defaults.testMatch,
    '**/__tests__/**/*.ts?(x)',
    '**/?(*.)+(spec|test).ts?(x)'
  ],
  moduleFileExtensions: [...defaults.moduleFileExtensions, 'ts', 'tsx'],
  globals: {
    'ts-jest': {
   skipBabel: true
}
  }
}

module.exports = config

with runner: 'jest-runner-tsc':

const { defaults } = require('jest-config')

const config = {
  runner: 'jest-runner-tsc',
  testMatch: [
    ...defaults.testMatch,
    '**/__tests__/**/*.ts?(x)',
    '**/?(*.)+(spec|test).ts?(x)'
  ],
  moduleFileExtensions: [...defaults.moduleFileExtensions, 'ts', 'tsx']
}

module.exports = config

test suite run with ts-jest as transform vs just jest-runner-tsc as runner:
image

azz commented

They are different things :) ts-jest is to transform TS code into JS. jest-runner-tsc doesn't run tests, it runs the TS typechecker, so it's like a linter. You need to run both.