redux-saga-test-plan Failing Assert with exact expected and actual











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I have a createPostSaga which POSTs to my API and I am trying to test it. This is the saga:



export function* createPostSaga(action) {
const token = yield select(selectToken);
const headerParams = {
Authorization: `JWT ${token}`
};
const apiCall = () => {
let formData = new FormData();
formData.append("title", action.payload.title);
formData.append("content", action.payload.content);
formData.append("thumbnail", action.payload.thumbnail);
formData.append("tags", JSON.stringify(action.payload.tags));
formData.append("slug", generateSlug(action.payload.title));
return axios({
method: "post",
url: "/posts/",
data: formData,
headers: headerParams
})
.then(response => response.data)
.catch(err => {
throw err;
});
};

try {
const response = yield call(apiCall);
yield put(push(`/posts/${response.id}/${response.slug}/`));
} catch (error) {
console.log(error);
}
}


and this is the code I have so far that is failing:



describe("createPostSaga", () => {
const action = {
type: types.CREATE_POST,
payload: {
title: "test title",
pub_date: "2018-11-12",
content: "test content",
tags: ["test1", "test2"],
thumbnail: "http://fail",
slug: "test-title"
}
}

const apiCall = () => ({
id: 1,
...action.payload
});

it("calls the api and redirects", () => {
testSaga(actions.createPostSaga, action)
.next()
.select(selectToken)
.next()
.call(apiCall)
.next()
.put(push("/posts/1/test-title/"))
.finish()
.isDone();
})
})


When I test this code, I receive the following error:



SagaTestError:
Assertion 2 failed: call effects do not match

Expected
--------
{ context: null, fn: [Function: apiCall], args: }

Actual
------
{ context: null, fn: [Function: apiCall], args: }


As you can see the expected and actual results are the same.



I have also tried to directly copy paste the apiCall function into my test but it fails with the same message and I am stumped.










share|improve this question


























    up vote
    0
    down vote

    favorite












    I have a createPostSaga which POSTs to my API and I am trying to test it. This is the saga:



    export function* createPostSaga(action) {
    const token = yield select(selectToken);
    const headerParams = {
    Authorization: `JWT ${token}`
    };
    const apiCall = () => {
    let formData = new FormData();
    formData.append("title", action.payload.title);
    formData.append("content", action.payload.content);
    formData.append("thumbnail", action.payload.thumbnail);
    formData.append("tags", JSON.stringify(action.payload.tags));
    formData.append("slug", generateSlug(action.payload.title));
    return axios({
    method: "post",
    url: "/posts/",
    data: formData,
    headers: headerParams
    })
    .then(response => response.data)
    .catch(err => {
    throw err;
    });
    };

    try {
    const response = yield call(apiCall);
    yield put(push(`/posts/${response.id}/${response.slug}/`));
    } catch (error) {
    console.log(error);
    }
    }


    and this is the code I have so far that is failing:



    describe("createPostSaga", () => {
    const action = {
    type: types.CREATE_POST,
    payload: {
    title: "test title",
    pub_date: "2018-11-12",
    content: "test content",
    tags: ["test1", "test2"],
    thumbnail: "http://fail",
    slug: "test-title"
    }
    }

    const apiCall = () => ({
    id: 1,
    ...action.payload
    });

    it("calls the api and redirects", () => {
    testSaga(actions.createPostSaga, action)
    .next()
    .select(selectToken)
    .next()
    .call(apiCall)
    .next()
    .put(push("/posts/1/test-title/"))
    .finish()
    .isDone();
    })
    })


    When I test this code, I receive the following error:



    SagaTestError:
    Assertion 2 failed: call effects do not match

    Expected
    --------
    { context: null, fn: [Function: apiCall], args: }

    Actual
    ------
    { context: null, fn: [Function: apiCall], args: }


    As you can see the expected and actual results are the same.



    I have also tried to directly copy paste the apiCall function into my test but it fails with the same message and I am stumped.










    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I have a createPostSaga which POSTs to my API and I am trying to test it. This is the saga:



      export function* createPostSaga(action) {
      const token = yield select(selectToken);
      const headerParams = {
      Authorization: `JWT ${token}`
      };
      const apiCall = () => {
      let formData = new FormData();
      formData.append("title", action.payload.title);
      formData.append("content", action.payload.content);
      formData.append("thumbnail", action.payload.thumbnail);
      formData.append("tags", JSON.stringify(action.payload.tags));
      formData.append("slug", generateSlug(action.payload.title));
      return axios({
      method: "post",
      url: "/posts/",
      data: formData,
      headers: headerParams
      })
      .then(response => response.data)
      .catch(err => {
      throw err;
      });
      };

      try {
      const response = yield call(apiCall);
      yield put(push(`/posts/${response.id}/${response.slug}/`));
      } catch (error) {
      console.log(error);
      }
      }


      and this is the code I have so far that is failing:



      describe("createPostSaga", () => {
      const action = {
      type: types.CREATE_POST,
      payload: {
      title: "test title",
      pub_date: "2018-11-12",
      content: "test content",
      tags: ["test1", "test2"],
      thumbnail: "http://fail",
      slug: "test-title"
      }
      }

      const apiCall = () => ({
      id: 1,
      ...action.payload
      });

      it("calls the api and redirects", () => {
      testSaga(actions.createPostSaga, action)
      .next()
      .select(selectToken)
      .next()
      .call(apiCall)
      .next()
      .put(push("/posts/1/test-title/"))
      .finish()
      .isDone();
      })
      })


      When I test this code, I receive the following error:



      SagaTestError:
      Assertion 2 failed: call effects do not match

      Expected
      --------
      { context: null, fn: [Function: apiCall], args: }

      Actual
      ------
      { context: null, fn: [Function: apiCall], args: }


      As you can see the expected and actual results are the same.



      I have also tried to directly copy paste the apiCall function into my test but it fails with the same message and I am stumped.










      share|improve this question













      I have a createPostSaga which POSTs to my API and I am trying to test it. This is the saga:



      export function* createPostSaga(action) {
      const token = yield select(selectToken);
      const headerParams = {
      Authorization: `JWT ${token}`
      };
      const apiCall = () => {
      let formData = new FormData();
      formData.append("title", action.payload.title);
      formData.append("content", action.payload.content);
      formData.append("thumbnail", action.payload.thumbnail);
      formData.append("tags", JSON.stringify(action.payload.tags));
      formData.append("slug", generateSlug(action.payload.title));
      return axios({
      method: "post",
      url: "/posts/",
      data: formData,
      headers: headerParams
      })
      .then(response => response.data)
      .catch(err => {
      throw err;
      });
      };

      try {
      const response = yield call(apiCall);
      yield put(push(`/posts/${response.id}/${response.slug}/`));
      } catch (error) {
      console.log(error);
      }
      }


      and this is the code I have so far that is failing:



      describe("createPostSaga", () => {
      const action = {
      type: types.CREATE_POST,
      payload: {
      title: "test title",
      pub_date: "2018-11-12",
      content: "test content",
      tags: ["test1", "test2"],
      thumbnail: "http://fail",
      slug: "test-title"
      }
      }

      const apiCall = () => ({
      id: 1,
      ...action.payload
      });

      it("calls the api and redirects", () => {
      testSaga(actions.createPostSaga, action)
      .next()
      .select(selectToken)
      .next()
      .call(apiCall)
      .next()
      .put(push("/posts/1/test-title/"))
      .finish()
      .isDone();
      })
      })


      When I test this code, I receive the following error:



      SagaTestError:
      Assertion 2 failed: call effects do not match

      Expected
      --------
      { context: null, fn: [Function: apiCall], args: }

      Actual
      ------
      { context: null, fn: [Function: apiCall], args: }


      As you can see the expected and actual results are the same.



      I have also tried to directly copy paste the apiCall function into my test but it fails with the same message and I am stumped.







      reactjs redux-saga redux-saga-test-plan






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 22 at 3:02









      CHBresser

      627




      627





























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