unwilling-turquoise•2y ago

Mocking Data Provider

Hi. How can i mock data provider to return lists that i wanted? I am testing with jest and its been 3 days i haven't solved this problem.

37 Replies

refine-support-bot•2y ago

Hi, I am refine support bot :wave:. I am here to help you with your question. I searched for the answer to your question in the refine documentation and found an answer! 🏆 If this is the answer you need, then we are very lucky. If not, please wait for someone from the refine core team or the community to try to help you.
Answer: You can use the swizzle to create a data provider and modify it according to your API. You can also use the mockUsers array to create a login function in the authProvider. Additionally, you can use the Nestjsx Crud Data Provider to connect to your Nestjsx API. SOURCES: ./docs/tutorial/2-understanding-dataprovider/1-swizzle.md, ./docs/tutorial/5-understanding-authprovider/1-create-authprovider.md, ./docs/advanced-tutorials/data-provider/strapi-v4.md, ./docs/examples/data-provider/nestjsxCrud.md

ratty-blush•2y ago

Hey @thedevkim, You need to create a wrapper that contains <Refine/>. After you need to pass mock data provider to <Refine/>. You can find our mock data provider in here: https://github.com/refinedev/refine/blob/next/packages/core/test/dataMocks.ts#L41 You can find usage of TestWrapper: https://github.com/refinedev/refine/blob/next/packages/core/src/hooks/useTable/index.spec.ts Also, you can checkout this issue for more information: https://github.com/refinedev/refine/issues/3432

unwilling-turquoise•2y ago

@salihozdemir Hi. I would like to confirm this

import { MockJSONServer, TestWrapper } from "@test";

Can you give me the link to this module/package ?

ratty-blush•2y ago

You can find our <TestWrapper> in here: https://github.com/refinedev/refine/blob/next/packages/core/test/index.tsx

unwilling-turquoise•2y ago

const MockDataProvider = () => {
    return {
        default: {
            create: () => Promise.resolve({ data: posts[0] }),
            createMany: () => Promise.resolve({ data: posts }),
            deleteOne: () => Promise.resolve({ data: posts[0] }),
            deleteMany: () => Promise.resolve({ data: [] }),
            getList: () => Promise.resolve({ data: posts, total: 2 }),
            getMany: () => Promise.resolve({ data: [...posts] }),
            getOne: () => Promise.resolve({ data: posts[0] }),
            update: () => Promise.resolve({ data: posts[0] }),
            updateMany: () => Promise.resolve({ data: [] }),
            getApiUrl: () => "https://api.fake-rest.refine.dev",
            custom: () => Promise.resolve({ data: [...posts] }),
        },
    };
};

const MockDataProvider = () => {
    return {
        default: {
            create: () => Promise.resolve({ data: posts[0] }),
            createMany: () => Promise.resolve({ data: posts }),
            deleteOne: () => Promise.resolve({ data: posts[0] }),
            deleteMany: () => Promise.resolve({ data: [] }),
            getList: () => Promise.resolve({ data: posts, total: 2 }),
            getMany: () => Promise.resolve({ data: [...posts] }),
            getOne: () => Promise.resolve({ data: posts[0] }),
            update: () => Promise.resolve({ data: posts[0] }),
            updateMany: () => Promise.resolve({ data: [] }),
            getApiUrl: () => "https://api.fake-rest.refine.dev",
            custom: () => Promise.resolve({ data: [...posts] }),
        },
    };
};

Just by putting dataProvider={MockDataProvider} i can already mock my lists output right? @salihozdemir I will check it in few mins. Because as i have experienced. i tried mocking the dataProvider and it says an error, that "needs to provider a dataProviderName" something like that, ill let you know

Omer•2y ago

Hey @thedevkim , Could you check this issue? https://github.com/refinedev/refine/issues/3432

GitHub

[BUG] Can't test a component that uses useCustomMutation · Issue #3...

Describe the bug Components that are using refine hooks are impossible to test. One of the examples is a component making a custom request to server. Here is my component code. import { FileUpload,...

unwilling-turquoise•2y ago

Hi. What version does this have?

import { MockJSONServer, TestWrapper } from "@test";

I get error when importing "@test" Hi. Do you know where he gets the RefineTestWrapper ?

Omer•2y ago

https://github.com/refinedev/refine/blob/next/packages/react-table/test/index.tsx#L13

unwilling-turquoise•2y ago

Hi, im sorry, im a bit confused. Is it?

import { TestWrapper } from '@testing-library/react';

import { TestWrapper } from '@testing-library/react';

ratty-blush•2y ago

No, you need to create your own <TestWrapper>. When you render your hook in test environment, the hook needs a wrapper which contains refine providers. You can copy our TestWrapper component here: https://github.com/refinedev/refine/blob/next/packages/core/test/index.tsx#L65-L171 Then, you can use it like here: https://github.com/refinedev/refine/blob/next/packages/core/src/hooks/useTable/index.spec.ts#L23-L28

unwilling-turquoise•2y ago

Is it the same with this RefineTestWrapper in this section ?

https://github.com/refinedev/refine/issues/3432#issuecomment-1398627534

GitHub

[BUG] Can't test a component that uses useCustomMutation · Issue #3...

unwilling-turquoise•2y ago

Where do i get these files ?

unwilling-turquoise•2y ago

Do i need to copy all ?

ratty-blush•2y ago

Actually you're right, sorry. Can you create <TestWrapper> like here? https://github.com/refinedev/refine/blob/next/packages/react-table/test/index.tsx#L13

unwilling-turquoise•2y ago

Just this one right? or the entire code?

ratty-blush•2y ago

Just component

unwilling-turquoise•2y ago

How about the MockJSONServer from ./dataMock

ratty-blush•2y ago

Off course, you can use MockJSONServer . Also, MockRouterProvider

unwilling-turquoise•2y ago

Okay so i copied the code of testwrapper and have this on my test.

unwilling-turquoise•2y ago

When i test it, i get infinite test error.

ratty-blush•2y ago

Can you share your TestWrapper and error messages?

unwilling-turquoise•2y ago

This is my TestWrapper.

unwilling-turquoise•2y ago

ratty-blush•2y ago

You don't need line 40

unwilling-turquoise•2y ago

i manage to take a screnshot while in infinite error sec

unwilling-turquoise•2y ago

ratty-blush•2y ago

MockDataProvider is a function. If you invoke it, it probably works.

unwilling-turquoise•2y ago

This is my test

unwilling-turquoise•2y ago

can you tell me the problem on this one ? kinda confused sorry

ratty-blush•2y ago

Yes, you need to use MockDataProvider like this:

let d = render(
  <CampaingList/>,
  wrapper: TestWrapper({
    dataProvider: MockDataProvider(),
  })
)

let d = render(
  <CampaingList/>,
  wrapper: TestWrapper({
    dataProvider: MockDataProvider(),
  })
)

unwilling-turquoise•2y ago

oh The error is gone now, I will in the component if it really rendered the lists. Thanks Hi. I already have a data, but in the table the list is not showing and there is no pagination. I am using jest testing When i console log it on the render Table.Column, there is a value It seems like no row has been created

unwilling-turquoise•2y ago

I console log the tableProps and the data is actually there, but its not rendering in the row

ratty-blush•2y ago

I don't know the parts with Antd Table. If you are writing unit tests, you should test small functions, if you want to test useTable and Antd.Table together, writing e2e test seems like a better solution. You can see our unit tests about useTable in here, may it can inspire you. https://github.com/refinedev/refine/blob/next/packages/antd/src/hooks/table/useTable/useTable.spec.ts

unwilling-turquoise•2y ago

How do i test if its an edit page ?

unwilling-turquoise•2y ago

This one seems to be working only for getList

unwilling-turquoise•2y ago

How do i test a page for edit ? It should use the getOne right ?