var tape = require("tape")

var abortRequest = require("../../lib/abort-request.js")
var sendRequest = require("../../lib/send-request.js")

// Polyfill responseURL property into XMLHttpRequest if it doesn't exist,
// just for the purposes of this test
// This polyfill is not complete; it won't show the updated location if a
// redirection occurred, but it's fine for our purposes.
if (!("responseURL" in XMLHttpRequest.prototype)) {
  var nativeOpen = XMLHttpRequest.prototype.open
  XMLHttpRequest.prototype.open = function(method, url) {
    this.responseURL = url
    return nativeOpen.apply(this, arguments)
  }
}

tape("test aborting xhr request", function(t) {
  var requestCacheBust = sendRequest.bind({
    options: {
      cacheBust: true,
    },
  })

  t.test("- pending request is aborted", function(t) {
    var r = requestCacheBust("https://httpbin.org/delay/10", {}, function() {})
    t.equal(r.readyState, 1, "xhr readyState is '1' (SENT)")
    abortRequest(r)
    t.equal(r.readyState, 0, "xhr readyState is '0' (ABORTED)")
    t.equal(r.status, 0, "xhr HTTP status is '0' (ABORTED)")
    t.equal(r.responseText, "", "xhr response is empty")
    t.end()
  })
  t.test("- request is not aborted if it has already completed", function(t) {
    var r = requestCacheBust("https://httpbin.org/get", {}, function() {
      abortRequest(r)
      t.equal(r.readyState, 4, "xhr readyState is '4' (DONE)")
      t.equal(r.status, 200, "xhr HTTP status is '200' (OK)")
      t.end()
    })
  })
  t.test("- request is not aborted if it is undefined", function(t) {
    var r
    try {
      abortRequest(r)
    }
    catch (e) {
      t.fail("aborting an undefined request threw an error")
    }
    t.equal(typeof r, "undefined", "undefined xhr was ignored")
    t.end()
  })
  t.end()
})