/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// This tests that session restore component does restore the right <select> option.
// Session store should not rely only on previous user's selectedIndex, it should
// check its value as well.

function test() {
  /** Tests selected options **/
  requestLongerTimeout(2);
  waitForExplicitFinish();

  let testTabCount = 0;
  let formData = [
  // default case
    { },

  // new format
    // index doesn't match value (testing an option in between (two))
    { id: { "select_id": {"selectedIndex": 0, "value": "val2"} } },
    // index doesn't match value (testing an invalid value)
    { id: { "select_id": {"selectedIndex": 4, "value": "val8"} } },
    // index doesn't match value (testing an invalid index)
    { id: { "select_id": {"selectedIndex": 8, "value": "val5"} } },
    // index and value match position zero
    { id: { "select_id": {"selectedIndex": 0, "value": "val0"} }, xpath: {} },
    // index doesn't match value (testing the last option (seven))
    { id: {}, "xpath": { "/xhtml:html/xhtml:body/xhtml:select[@name='select_name']": {"selectedIndex": 1, "value": "val7"} } },
    // index and value match the default option "selectedIndex":3,"value":"val3"
    { xpath: { "/xhtml:html/xhtml:body/xhtml:select[@name='select_name']": {"selectedIndex": 3, "value": "val3"} } },
    // index matches default option however it doesn't match value
    { id: { "select_id": {"selectedIndex": 3, "value": "val4"} } },
  ];

  let expectedValues = [
    null,   // default value
    "val2",
    null,   // default value (invalid value)
    "val5", // value is still valid (even it has an invalid index)
    "val0",
    "val7",
    null,
    "val4",
  ];
  let callback = function() {
    testTabCount--;
    if (testTabCount == 0) {
      finish();
    }
  };

  for (let i = 0; i < formData.length; i++) {
    testTabCount++;
    testTabRestoreData(formData[i], expectedValues[i], callback);
  }
}

function testTabRestoreData(aFormData, aExpectedValue, aCallback) {
  let testURL =
    getRootDirectory(gTestPath) + "browser_662743_sample.html";
  let tab = BrowserTestUtils.addTab(gBrowser, testURL);

  aFormData.url = testURL;
  let tabState = { entries: [{ url: testURL, triggeringPrincipal_base64 }], formdata: aFormData };

  promiseBrowserLoaded(tab.linkedBrowser).then(() => {
    promiseTabState(tab, tabState).then(() => {
      // Flush to make sure we have the latest form data.
      return TabStateFlusher.flush(tab.linkedBrowser);
    }).then(() => {
      let doc = tab.linkedBrowser.contentDocument;
      let select = doc.getElementById("select_id");
      let value = select.options[select.selectedIndex].value;
      let restoredTabState = JSON.parse(ss.getTabState(tab));

      // If aExpectedValue=null we don't expect any form data to be collected.
      if (!aExpectedValue) {
        ok(!restoredTabState.hasOwnProperty("formdata"), "no formdata collected");
        gBrowser.removeTab(tab);
        aCallback();
        return;
      }

      // test select options values
      is(value, aExpectedValue,
        "Select Option by selectedIndex &/or value has been restored correctly");

      let restoredFormData = restoredTabState.formdata;
      let selectIdFormData = restoredFormData.id.select_id;
      value = restoredFormData.id.select_id.value;

      // test format
      ok("id" in restoredFormData || "xpath" in restoredFormData,
        "FormData format is valid");
      // test format
      ok("selectedIndex" in selectIdFormData && "value" in selectIdFormData,
        "select format is valid");
       // test set collection values
      is(value, aExpectedValue,
        "Collection has been saved correctly");

      // clean up
      gBrowser.removeTab(tab);

      aCallback();
    });
  });
}
