Simulate file upload while testing Node Js application using Chai-CodePudding

I am testing my API which receives a file as input. I tried using attach() function and it works pretty much fine. To cover all my use cases, I will have to use around 20 different input files. Instead of keeping all these 20 files, I was thinking of storing every such possible inputs in a single JSON file.

Example:

{
    "input-1":[
       "Name, Email, Phone, Address",
       "Sam, [email protected],0123498765,HomeAddress"
    ],
    "input-2":[
       "Name, Email, Phone, Address",
       "Yam, [email protected],0123498766,HomeAddress"
    ],
    "input-3":[
       "Name, Email, Phone, Address",
       "Ram, [email protected],0123498767,HomeAddress"
    ]
}

Here each entry (input-1,input-2,input-3) represents content for each file. This is just a sample. The actual file will have multiple lines for each such test input.

So, what I need is to extract each input and convert it as a file while calling the API. How do I achieve this using Chai?

CodePudding user response：

you could iterate data and and create tests and files dynamically, and attach them, including also all file related info for the server to parse:

const files = {
    "input-1": [
        "Name, Email, Phone, Address",
        "Sam, [email protected],0123498765,HomeAddress"
    ],
    "input-2": [
        "Name, Email, Phone, Address",
        "Yam, [email protected],0123498766,HomeAddress"
    ],
    "input-3": [
        "Name, Email, Phone, Address",
        "Ram, [email protected],0123498767,HomeAddress"
    ]
}

describe('uploading', () => {

    for (const [file, data] of Object.entries(files)) {

        it(`file ${file} should pass`, (done) => {

            chai.request(app)
                .post('/endpoint')
                // create file dynamically
                .attach('file', Buffer.from(data, 'utf-8'), {
                    // add file info accordingly
                    filename: `${file}.txt`,
                    contentType: 'text/plain',
                    knownLength: data.length
                })
                .end((err, res) => {
                    if (err) {
                        throw err;
                    }
                    expect(res).to.have.status(200);
                    done();
                })
        });
    }

});