If you are interested in using jest with es6 syntax, you pay run into issues with the spread operator:

● Runtime Error
SyntaxError: /Users/josephmisiti/mathandpencil/projects/ventus/ventus/ventus/static_local/js/app/actions/SubmissionActions.js: Unexpected token (53:35)
51 | .then(
52 | (newSubmissionObject) => {
> 53 | var newData = {...data, newObject: newSubmissionObject};
| ^
54 | dispatch(upsertSubmissionData(newData))
55 | },
56 | (xhr) => {
at Parser.pp.raise (/Users/josephmisiti/mathandpencil/projects/ventus/ventus/node_modules/babylon/index.js:1378:13)
at Parser.pp.unexpected (/Users/josephmisiti/mathandpencil/projects/ventus/ventus/node_modules/babylon/index.js:2817:8)
at Parser.pp.parseIdentifier (/Users/josephmisiti/mathandpencil/projects/ventus/ventus/node_modules/babylon/index.js:1227:10)
at Parser.pp.parsePropertyName (/Users/josephmisiti/mathandpencil/projects/ventus/ventus/node_modules/babylon/index.js:1070:135)
at Parser.pp.parseObj (/Users/josephmisiti/mathandpencil/projects/ventus/ventus/node_modules/babylon/index.js:986:12)
at Parser.pp.parseExprAtom (/Users/josephmisiti/mathandpencil/projects/ventus/ventus/node_modules/babylon/index.js:718:19)
at Parser.parseExprAtom (/Users/josephmisiti/mathandpencil/projects/ventus/ventus/node_modules/babylon/index.js:4305:22)
at Parser.pp.parseExprSubscripts (/Users/josephmisiti/mathandpencil/projects/ventus/ventus/node_modules/babylon/index.js:504:19)
at Parser.pp.parseMaybeUnary (/Users/josephmisiti/mathandpencil/projects/ventus/ventus/node_modules/babylon/index.js:484:19)
at Parser.pp.parseExprOps (/Users/josephmisiti/mathandpencil/projects/ventus/ventus/node_modules/babylon/index.js:415:19)

As you can see, jest doesnt seem to like ES6’s awesome spread operator ...data. After an hour or so, I found the solution. First install stage-2

npm install --save-dev babel-preset-stage-2

Finally update your .babelrc

{
    "presets": ["es2015", "react", "stage-2"]
}

Your tests should pass now.

$ jest SubmissionActions-tests.js
Using Jest CLI v0.10.2, jasmine2, babel-jest
Running 1 test suite...{ type: 'CLOSE_TABLE_CELL_EDIT_MODAL' }
 PASS  actions/__tests__/SubmissionActions-tests.js (0.489s)
1 test passed (1 total in 1 test suite, run time 1.334s)