Jest: coverage is scoring 100, even for files without tests

Question

I'm running jest --coverage against my tests, but Jest is giving me a 100 value on files that have no tests at all or test cases that don't cover all component lines/statements/functions.

Also, I expect my tests to fail if the minimum coverageThreshold is not met.

This is what I've got my jest.config.ts file:

export default {
  testEnvironment: 'jsdom',
  transform: {
    '^.+\\.tsx?$': 'ts-jest',
  },
  moduleNameMapper: {
    '\\.(jpg|gif|ttf|eot|svg|png)$': '<rootDir>/test/__mocks__/fileMock.js',
    '\\.(css|less|sass|scss)$': 'identity-obj-proxy',
  },
  testMatch: [
    '<rootDir>/src/**/__tests__/**/*.(ts|tsx)',
    '<rootDir>/src/**/*.{spec,test}.(ts|tsx)',
  ],
  collectCoverageFrom: [
    '<rootDir>/src/**/*.(ts|tsx)',
    '!<rootDir>/node_modules/',
    '!<rootDir>/src/**/*.d.ts',
  ],
  collectCoverage: true,
  coverageThreshold: {
    global: {
      lines: 85,
      statements: 85,
      functions: 85,
    },
  },
  resetMocks: true,
  moduleDirectories: ['node_modules', 'src'],
  coverageDirectory: '<rootDir>/coverage',
};

You can find my implementation in this repository: https://bitbucket.org/thyagoweber/zustand-tw-training/src/coverage-issues/