pjax/tests/lib/proto/handle-response.js

var tape = require("tape")

var handleReponse = require("../../../lib/proto/handle-response")
var noop = require("../../../lib/util/noop")

var href = "https://example.org/"

var storeEventHandler
var pjaxErrorEventTriggerTest

tape("test events triggered when handleResponse(false) is called", function(t) {
  t.plan(3)

  var pjax = {
    options: {
      test: 1
    }
  }

  var events = []

  storeEventHandler = function(e) {
    events.push(e.type)

    t.equal(e.test, 1)
  }

  document.addEventListener("pjax:complete", storeEventHandler)
  document.addEventListener("pjax:error", storeEventHandler)

  handleReponse.bind(pjax)(false, null)

  t.same(events, ["pjax:complete", "pjax:error"], "calling handleResponse(false) triggers 'pjax:complete' and 'pjax:error'")

  t.end()
})

tape("test when handleResponse() is called normally", function(t) {
  var pjax = {
    options: {
      test: 1
    },
    loadContent: noop,
    state: {}
  }

  var request = {
    getResponseHeader: noop
  }

  handleReponse.bind(pjax)("", request, "href")

  delete window.history.state.uid
  t.same(window.history.state, {
    url: href,
    title: "",
    scrollPos: [0, 0]
  }, "window.history.state is set correctly")
  t.equals(pjax.state.href, "href", "this.state.href is set correctly")
  t.equals(Object.keys(pjax.state.options).length, 2, "this.state.options is set correctly")
  t.same(pjax.state.options.request, request, "this.state.options is set correctly")
  t.equals(pjax.state.options.test, 1, "this.state.options is set correctly")

  t.end()
})

tape("test when handleResponse() is called normally with request.responseURL", function(t) {
  var pjax = {
    options: {},
    loadContent: noop,
    state: {}
  }

  var request = {
    responseURL: href + "1",
    getResponseHeader: noop
  }

  handleReponse.bind(pjax)("", request, "")

  t.equals(pjax.state.href, request.responseURL, "this.state.href is set correctly")

  t.end()
})

tape("test when handleResponse() is called normally with X-PJAX-URL", function(t) {
  var pjax = {
    options: {},
    loadContent: noop,
    state: {}
  }

  var request = {
    getResponseHeader: function(header) {
      if (header === "X-PJAX-URL") {
        return href + "2"
      }
    }
  }

  handleReponse.bind(pjax)("", request, "")

  t.equals(pjax.state.href, href + "2", "this.state.href is set correctly")

  t.end()
})

tape("test when handleResponse() is called normally with X-XHR-Redirected-To", function(t) {
  var pjax = {
    options: {},
    loadContent: noop,
    state: {}
  }

  var request = {
    getResponseHeader: function(header) {
      if (header === "X-XHR-Redirected-To") {
        return href + "3"
      }
    }
  }

  handleReponse.bind(pjax)("", request, "")

  t.equals(pjax.state.href, href + "3", "this.state.href is set correctly")

  t.end()
})

tape("test when handleResponse() is called normally with a hash", function(t) {
  var pjax = {
    options: {},
    loadContent: noop,
    state: {}
  }

  var request = {
    responseURL: href + "2",
    getResponseHeader: noop
  }

  handleReponse.bind(pjax)("", request, href + "1#test")

  t.equals(pjax.state.href, href + "2#test", "this.state.href is set correctly")

  t.end()
})

tape("test try...catch for loadContent() when options.debug is true", function(t) {
  t.plan(2)

  var pjax = {
    options: {},
    loadContent: noop,
    state: {}
  }

  var request = {
    getResponseHeader: noop
  }

  pjax.loadContent = function() {
    throw new Error()
  }
  pjax.options.debug = true

  document.removeEventListener("pjax:error", storeEventHandler)
  pjaxErrorEventTriggerTest = function() {
    t.pass("pjax:error event triggered")
  }
  document.addEventListener("pjax:error", pjaxErrorEventTriggerTest)

  t.throws(function() {
    handleReponse.bind(pjax)("", request, "")
  }, Error, "error is rethrown")

  t.end()
})

tape("test try...catch for loadContent()", function(t) {
  t.plan(2)

  var pjax = {
    options: {},
    loadContent: noop,
    state: {}
  }

  var request = {
    getResponseHeader: noop
  }

  pjax.loadContent = function() {
    throw new Error()
  }
  pjax.latestChance = function() {
    return true
  }
  pjax.options.debug = false

  document.removeEventListener("pjax:error", pjaxErrorEventTriggerTest)

  t.doesNotThrow(function() {
    t.equals(handleReponse.bind(pjax)("", request, ""), true, "this.latestChance() is called")
  }, Error, "error is not thrown")

  t.end()
})