"use strict";

add_task(function* sameCaseAsMatch() {
  yield runTest("moz");
});

add_task(function* differentCaseFromMatch() {
  yield runTest("MOZ");
});

function* runTest(searchStr) {
  let matches = [
    "mozilla.org",
    "example.com",
  ];
  let result = new AutoCompleteResultBase(matches);
  result.defaultIndex = 0;

  let search = new AutoCompleteSearchBase("search", result);
  registerAutoCompleteSearch(search);

  let input = new AutoCompleteInputBase([search.name]);
  input.completeSelectedIndex = true;
  input.completeDefaultIndex = true;

  // Start off with the search string in the input.  The selection must be
  // collapsed and the caret must be at the end to trigger autofill below.
  input.textValue = searchStr;
  input.selectTextRange(searchStr.length, searchStr.length);
  Assert.equal(input.selectionStart, searchStr.length,
               "Selection should start at the end of the input");
  Assert.equal(input.selectionEnd, searchStr.length,
               "Selection should end at the end of the input");

  let controller = Cc["@mozilla.org/autocomplete/controller;1"].
                   createInstance(Ci.nsIAutoCompleteController);
  controller.input = input;
  input.controller = controller;

  // Start a search.
  yield new Promise(resolve => {
    controller.startSearch(searchStr);
    input.onSearchComplete = () => {
      // The first match should have autofilled, but the case of the search
      // string should be preserved.
      let expectedValue = searchStr + matches[0].substr(searchStr.length);
      Assert.equal(input.textValue, expectedValue,
                   "Should have autofilled");
      Assert.equal(input.selectionStart, searchStr.length,
                   "Selection should start after search string");
      Assert.equal(input.selectionEnd, expectedValue.length,
                   "Selection should end at the end of the input");
      resolve();
    };
  });

  // Key down to select the second match in the popup.
  controller.handleKeyNavigation(Ci.nsIDOMKeyEvent.DOM_VK_DOWN);
  let expectedValue = matches[1];
  Assert.equal(input.textValue, expectedValue,
               "Should have filled second match");
  Assert.equal(input.selectionStart, expectedValue.length,
               "Selection should start at the end of the input");
  Assert.equal(input.selectionEnd, expectedValue.length,
               "Selection should end at the end of the input");

  // Key up to select the first match again.  The input should be restored
  // exactly as it was when the first match was autofilled above: the search
  // string's case should be preserved, and the selection should be preserved.
  controller.handleKeyNavigation(Ci.nsIDOMKeyEvent.DOM_VK_UP);
  expectedValue = searchStr + matches[0].substr(searchStr.length);
  Assert.equal(input.textValue, expectedValue,
               "Should have filled first match again");
  Assert.equal(input.selectionStart, searchStr.length,
               "Selection should start after search string again");
  Assert.equal(input.selectionEnd, expectedValue.length,
               "Selection should end at the end of the input again");
}