How to use fbt - 10 common examples

it('should raise an error when call `.param()` with invalid argument', () => {
    // $ExpectError: first argument must be a string
    fbt.param(12, 18);
    // $ExpectError: third argument must be an object
    fbt.param('age', 18, 11);
    // $ExpectError: `abcd` is missing
    fbt.param('age', 18, { abcd: true });
    // $ExpectError
    fbt.param('age', 18, { number: 'need numeber' });

    // $ExpectError: BITMASK_GENDER is missing in enum
    fbt.param('age', 18, { gender: IntlVariations.BITMASK_GENDER });
  });
});

it('should raise an error when call `.param()` with invalid argument', () => {
    // $ExpectError: first argument must be a string
    fbt.param(12, 18);
    // $ExpectError: third argument must be an object
    fbt.param('age', 18, 11);
    // $ExpectError: `abcd` is missing
    fbt.param('age', 18, { abcd: true });
    // $ExpectError
    fbt.param('age', 18, { number: 'need numeber' });

    // $ExpectError: BITMASK_GENDER is missing in enum
    fbt.param('age', 18, { gender: IntlVariations.BITMASK_GENDER });
  });
});

it('should raise an error when call `.sameParam()` with invalid argument', () => {
    // $ExpectError: first argument must be a number
    fbt.enum('1', ['test', 'test2']);

    // $ExpectError: first argument must be one key from object
    fbt.enum('MISSING_KEY', { CAR: 'car' });
  });
});

it('should raise an error when call `.sameParam()` with invalid argument', () => {
    // $ExpectError: first argument must be a number
    fbt.enum('1', ['test', 'test2']);

    // $ExpectError: first argument must be one key from object
    fbt.enum('MISSING_KEY', { CAR: 'car' });
  });
});

it('should raise an error when mutate GENDER not opaque type', () => {
    // $ExpectError: need opaque type from IntlVariations
    IntlViewerContext.GENDER = 1;
  });

it('should raise an error when mutate locale property not string', () => {
    // $ExpectError: need string
    IntlViewerContext.locale = 123;
  });

it('should raise an error when call `.name()` with invalid argument', () => {
    // $ExpectError: first argument must be a string
    fbt.name(1, IntlVariations.GENDER_FEMALE);

    // $ExpectError: `BITMASK_GENDER` is missing in enum
    fbt.name('test', IntlVariations.BITMASK_GENDER);
  });
});

it('should raise an error when call `.name()` with invalid argument', () => {
    // $ExpectError: first argument must be a string
    fbt.name(1, IntlVariations.GENDER_FEMALE);

    // $ExpectError: `BITMASK_GENDER` is missing in enum
    fbt.name('test', IntlVariations.BITMASK_GENDER);
  });
});

it('should raise an error when call `.param()` with invalid argument', () => {
    // $ExpectError: first argument must be a string
    fbt.param(12, 18);
    // $ExpectError: third argument must be an object
    fbt.param('age', 18, 11);
    // $ExpectError: `abcd` is missing
    fbt.param('age', 18, { abcd: true });
    // $ExpectError
    fbt.param('age', 18, { number: 'need numeber' });

    // $ExpectError: BITMASK_GENDER is missing in enum
    fbt.param('age', 18, { gender: IntlVariations.BITMASK_GENDER });
  });
});

it('should raise an error when call `.sameParam()` with invalid argument', () => {
    // $ExpectError: first argument must be a string
    fbt.sameParam(12);
  });
});