import { expect, use } from "chai"
import sinon from "sinon"
import sinonChai from "sinon-chai"

import { fetcher, http } from "@/api/common"

use(sinonChai)

describe("Fetch API wrapper", () => {
  const url = "http://localhost"
  let fetchStub: sinon.SinonStubbedMember<any>

  beforeEach(() => {
    fetchStub = sinon.stub(fetcher, "fetch")
  })

  afterEach(() => {
    sinon.restore()
  })

  it("Should set defaults", async () => {
    await http(url)
    expect(fetchStub).to.have.been.calledWith(url, {
      credentials: "same-origin",
    })
  })

  it("Should merge request parameters with defaults", async () => {
    await http(url, { method: "POST" })
    expect(fetchStub).to.have.been.calledWith(url, {
      credentials: "same-origin",
      method: "POST",
    })
  })

  it("Should add Authorization header", async () => {
    await http(url, {
      method: "POST",
      headers: { "Content-Type": "text/plain" },
      authToken: "123",
    })
    expect(fetchStub).to.have.been.calledWith(url, {
      credentials: "same-origin",
      headers: {
        Authorization: "Bearer 123",
        "Content-Type": "text/plain",
      },
      method: "POST",
    })
  })

  it("Should send JSON data", async () => {
    await http(url, {
      method: "POST",
      json: { key: "value" },
      authToken: "123",
    })
    expect(fetchStub).to.have.been.calledWith(url, {
      body: '{"key":"value"}',
      credentials: "same-origin",
      headers: {
        Authorization: "Bearer 123",
        "Content-Type": "application/json",
      },
      method: "POST",
    })
  })
})