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Add error on undefined action type

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This commit is contained in:
ksa 2016-01-25 19:40:54 +01:00
parent 72cd8d0505
commit 4ceaf3d09a
2 changed files with 14 additions and 0 deletions
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6
src/instrument.js
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@ -16,6 +16,12 @@ export const ActionTypes = {
*/
export const ActionCreators = {
performAction(action) {
if (typeof action.type === 'undefined') {
throw new Error(
'Actions may not have an undefined "type" property. ' +
'Have you misspelled a constant?'
);
}
return { type: ActionTypes.PERFORM_ACTION, action, timestamp: Date.now() };
},

8
test/instrument.spec.js
View File

@ -176,6 +176,14 @@ describe('instrument', () => {
spy.restore();
});
it('should catch invalid action type', () => {
expect(() => {
store.dispatch({ type: undefined });
}).toThrow(
/Actions may not have an undefined/
);
});
it('should return the last non-undefined state from getState', () => {
let storeWithBug = instrument()(createStore)(counterWithBug);
storeWithBug.dispatch({ type: 'INCREMENT' });