102 lines
2.3 KiB
JavaScript
102 lines
2.3 KiB
JavaScript
const noop = () => {};
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/**
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* Helper for testing action with expected mutations inspired in
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* https://vuex.vuejs.org/en/testing.html
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*
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* @param {Function} action to be tested
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* @param {Object} payload will be provided to the action
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* @param {Object} state will be provided to the action
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* @param {Array} [expectedMutations=[]] mutations expected to be committed
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* @param {Array} [expectedActions=[]] actions expected to be dispatched
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* @param {Function} [done=noop] to be executed after the tests
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* @return {Promise}
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*
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* @example
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* testAction(
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* actions.actionName, // action
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* { }, // mocked payload
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* state, //state
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* // expected mutations
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* [
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* { type: types.MUTATION}
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* { type: types.MUTATION_1, payload: jasmine.any(Number)}
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* ],
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* // expected actions
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* [
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* { type: 'actionName', payload: {param: 'foobar'}},
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* { type: 'actionName1'}
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* ]
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* done,
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* );
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*
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* @example
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* testAction(
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* actions.actionName, // action
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* { }, // mocked payload
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* state, //state
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* [ { type: types.MUTATION} ], // expected mutations
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* [], // expected actions
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* ).then(done)
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* .catch(done.fail);
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*/
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export default (
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action,
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payload,
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state,
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expectedMutations = [],
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expectedActions = [],
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done = noop,
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) => {
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const mutations = [];
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const actions = [];
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// mock commit
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const commit = (type, mutationPayload) => {
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const mutation = { type };
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if (typeof mutationPayload !== 'undefined') {
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mutation.payload = mutationPayload;
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}
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mutations.push(mutation);
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};
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// mock dispatch
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const dispatch = (type, actionPayload) => {
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const dispatchedAction = { type };
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if (typeof actionPayload !== 'undefined') {
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dispatchedAction.payload = actionPayload;
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}
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actions.push(dispatchedAction);
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};
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const validateResults = () => {
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expect({
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mutations,
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actions,
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}).toEqual({
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mutations: expectedMutations,
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actions: expectedActions,
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});
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done();
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};
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const result = action({ commit, state, dispatch, rootState: state }, payload);
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return new Promise(resolve => {
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setImmediate(resolve);
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})
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.then(() => result)
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.catch(error => {
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validateResults();
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throw error;
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})
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.then(data => {
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validateResults();
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return data;
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});
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};
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