Angular2 +-作为变量传递时找不到模块-测试

Question

In my test I am requiring a .json file with data that I will check against. However, I cannot seem to pass the string of where to find it into the require...

Working code

const data = require('../../../assets/data.json');

Does not work

const jsonUrl = '../../../assets/data.json';
const data = require(jsonUrl);

I am wanting to use the variable jsonUrl as this url string is to be used a few times within the test itself. I just don't understand why it cannot find it?

---

Amendment to question:

Since mocking is the way to go on this, and I am unsure of exactly how to do this... I am amending the question to help with this.

From what I am thinking with testing, I assume that I need to read in the data I am actually using and then test with that. If I am wrong then please correct me.

Here is what I am testing...

data.json

[
  {
    "name": "one",
    "id": 1,
  },
  ...
  // This format is used for approx 20 entries
]

component.ts

ngOnInit() {
   loadData().subscribe(data => {
       this.data = data;
    };
}

loadData() {
   const statusUrl = '../../../assets/data.json';
   return this.httpClient.get(statusUrl);
}

test.ts Receiving cannot find module because of require issue stated above.

it('should load status data from local json', fakeAsync(() => {
    const jsonUrl = '../../../assets/status.json';
    const data = require(jsonUrl);
    const request = httpMock.expectOne(jsonUrl);
    request.flush(data);
    expect(component.status).toEqual(data);
  }));

Answer 1

This was solved by making it equal any kind of object:

it('should load status data from local json', fakeAsync(() => {
    const jsonUrl = '../../../assets/greyhound.status.json';
    const data = [];

    const request = httpMock.expectOne(jsonUrl);
    request.flush(data);
    expect(component.raceStatuses).toEqual(data);
  }));