snippet action
export const type = '${1:`!p snip.rv = snip.basename`}';

export default (${2:...args}) => (\{
  type,${3:
  payload: \{
    ${2/,?( |$)/,\n  $1$1/g}\},}
\});$0
endsnippet

snippet testaction
import test from 'tape';

import ${1/-(\w)/\u$1/g}, \{
  type,
\} from '../../src/actions/${1:`!p snip.rv = snip.basename`}';

test('${1/-(\w)/\u$1/g} is a function', (t) => \{
  const actual = typeof ${1/-(\w)/\u$1/g};
  const expected = 'function';

  t.equal(
    actual, expected,
    '${1/-(\w)/\u$1/g} should be a function'
  );

  t.end();
\});

test('${1/-(\w)/\u$1/g} returns the correct action', (t) => \{
  const actual = ${1/-(\w)/\u$1/g}();
  const expected = \{ type \};

  t.deepEqual(
    actual, expected,
    'Action not of expected shape'
  );
  t.end();
\});
endsnippet

snippet impaction
import ${1/-(\w)/\u$1/g}, \{
  type as ${1/-(\w)/\u$1/g}Type,
\} from './${1:action-file-name}';

${1/-(\w)/\u$1/g}.type = ${1/-(\w)/\u$1/g}Type;

export \{ ${1/-(\w)/\u$1/g} \};
endsnippet