Jest: Cannot read property of '…' undefined, Redux Actions












0















One of my actions in a separate actions directory:



export const updateScore = (vals) => {
return {
type: "UPDATE_VALS",
payload: {
numbers: vals.numbers,
score: vals.score
}
}
}


My matchDispatchToProps function:



function matchDispatchToProps(dispatch) {
return {
actions: {
updateScore: bindActionCreators(updateScore, dispatch),
showSplash: bindActionCreators(showSplash, dispatch),
updateValue: bindActionCreators(updateValue, dispatch)
}
}
}


How it is called:



  updateVals() {
this.props.actions.updateScore({
numbers: {
x: randomNumber(),
y: randomNumber()
},
score: this.props.arithmetic.score+1
});
}


How it is used in Jest:



beforeEach(() => {
wrapper = shallow(<Arithmetic />);
});


Sorry for the large blocks of code but just felt I had to include everything. I get an error of Cannot read property 'updateScore' of undefined although I'm defining my actions at the bottom of the file I'm testing in matchDispatchToProps. I'm wondering if I have to add something extra to the Jest test itself? I have tried importing the test in curly braces:



import { Arithmetic } from "./Arithmetic";


and also exporting the main, unconnected component as well. Struggling to find what I'm missing out here.



Just to note, this works fine when I start the server, it seems to just fail in my tests.










share|improve this question





























    0















    One of my actions in a separate actions directory:



    export const updateScore = (vals) => {
    return {
    type: "UPDATE_VALS",
    payload: {
    numbers: vals.numbers,
    score: vals.score
    }
    }
    }


    My matchDispatchToProps function:



    function matchDispatchToProps(dispatch) {
    return {
    actions: {
    updateScore: bindActionCreators(updateScore, dispatch),
    showSplash: bindActionCreators(showSplash, dispatch),
    updateValue: bindActionCreators(updateValue, dispatch)
    }
    }
    }


    How it is called:



      updateVals() {
    this.props.actions.updateScore({
    numbers: {
    x: randomNumber(),
    y: randomNumber()
    },
    score: this.props.arithmetic.score+1
    });
    }


    How it is used in Jest:



    beforeEach(() => {
    wrapper = shallow(<Arithmetic />);
    });


    Sorry for the large blocks of code but just felt I had to include everything. I get an error of Cannot read property 'updateScore' of undefined although I'm defining my actions at the bottom of the file I'm testing in matchDispatchToProps. I'm wondering if I have to add something extra to the Jest test itself? I have tried importing the test in curly braces:



    import { Arithmetic } from "./Arithmetic";


    and also exporting the main, unconnected component as well. Struggling to find what I'm missing out here.



    Just to note, this works fine when I start the server, it seems to just fail in my tests.










    share|improve this question



























      0












      0








      0








      One of my actions in a separate actions directory:



      export const updateScore = (vals) => {
      return {
      type: "UPDATE_VALS",
      payload: {
      numbers: vals.numbers,
      score: vals.score
      }
      }
      }


      My matchDispatchToProps function:



      function matchDispatchToProps(dispatch) {
      return {
      actions: {
      updateScore: bindActionCreators(updateScore, dispatch),
      showSplash: bindActionCreators(showSplash, dispatch),
      updateValue: bindActionCreators(updateValue, dispatch)
      }
      }
      }


      How it is called:



        updateVals() {
      this.props.actions.updateScore({
      numbers: {
      x: randomNumber(),
      y: randomNumber()
      },
      score: this.props.arithmetic.score+1
      });
      }


      How it is used in Jest:



      beforeEach(() => {
      wrapper = shallow(<Arithmetic />);
      });


      Sorry for the large blocks of code but just felt I had to include everything. I get an error of Cannot read property 'updateScore' of undefined although I'm defining my actions at the bottom of the file I'm testing in matchDispatchToProps. I'm wondering if I have to add something extra to the Jest test itself? I have tried importing the test in curly braces:



      import { Arithmetic } from "./Arithmetic";


      and also exporting the main, unconnected component as well. Struggling to find what I'm missing out here.



      Just to note, this works fine when I start the server, it seems to just fail in my tests.










      share|improve this question
















      One of my actions in a separate actions directory:



      export const updateScore = (vals) => {
      return {
      type: "UPDATE_VALS",
      payload: {
      numbers: vals.numbers,
      score: vals.score
      }
      }
      }


      My matchDispatchToProps function:



      function matchDispatchToProps(dispatch) {
      return {
      actions: {
      updateScore: bindActionCreators(updateScore, dispatch),
      showSplash: bindActionCreators(showSplash, dispatch),
      updateValue: bindActionCreators(updateValue, dispatch)
      }
      }
      }


      How it is called:



        updateVals() {
      this.props.actions.updateScore({
      numbers: {
      x: randomNumber(),
      y: randomNumber()
      },
      score: this.props.arithmetic.score+1
      });
      }


      How it is used in Jest:



      beforeEach(() => {
      wrapper = shallow(<Arithmetic />);
      });


      Sorry for the large blocks of code but just felt I had to include everything. I get an error of Cannot read property 'updateScore' of undefined although I'm defining my actions at the bottom of the file I'm testing in matchDispatchToProps. I'm wondering if I have to add something extra to the Jest test itself? I have tried importing the test in curly braces:



      import { Arithmetic } from "./Arithmetic";


      and also exporting the main, unconnected component as well. Struggling to find what I'm missing out here.



      Just to note, this works fine when I start the server, it seems to just fail in my tests.







      reactjs redux jestjs






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 13 '18 at 22:13









      skyboyer

      3,53111128




      3,53111128










      asked Jun 19 '18 at 10:28









      kuomikuomi

      808




      808
























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