1 files changed, 100 insertions, 0 deletions
diff --git a/toolkit/components/autocomplete/tests/unit/test_badDefaultIndex.js b/toolkit/components/autocomplete/tests/unit/test_badDefaultIndex.js
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+++ b/toolkit/components/autocomplete/tests/unit/test_badDefaultIndex.js
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * A results that wants to defaultComplete to 0, but it has no matches,
+ * though it notifies SUCCESS to the controller.
+ */
+function AutoCompleteNoMatchResult() {
+  this.defaultIndex = 0;
+}
+AutoCompleteNoMatchResult.prototype = Object.create(
+  AutoCompleteResultBase.prototype
+);
+
+/**
+ * A results that wants to defaultComplete to an index greater than the number
+ * of matches.
+ */
+function AutoCompleteBadIndexResult(aValues, aDefaultIndex) {
+  Assert.ok(aValues.length <= aDefaultIndex);
+  this._values = aValues;
+  this.defaultIndex = aDefaultIndex;
+}
+AutoCompleteBadIndexResult.prototype = Object.create(
+  AutoCompleteResultBase.prototype
+);
+
+add_test(function autocomplete_noMatch_success() {
+  const INPUT_STR = "moz";
+
+  let searchNoMatch = new AutoCompleteSearchBase(
+    "searchNoMatch",
+    new AutoCompleteNoMatchResult()
+  );
+  registerAutoCompleteSearch(searchNoMatch);
+
+  // Make an AutoCompleteInput that uses our search and confirms results.
+  let input = new AutoCompleteInputBase([searchNoMatch.name]);
+  input.completeDefaultIndex = true;
+  input.textValue = INPUT_STR;
+
+  // Caret must be at the end for autoFill to happen.
+  let strLen = INPUT_STR.length;
+  input.selectTextRange(strLen, strLen);
+  Assert.equal(input.selectionStart, strLen);
+  Assert.equal(input.selectionEnd, strLen);
+
+  let controller = Cc["@mozilla.org/autocomplete/controller;1"].getService(
+    Ci.nsIAutoCompleteController
+  );
+  controller.input = input;
+  controller.startSearch(INPUT_STR);
+
+  input.onSearchComplete = function () {
+    // Should not try to autoFill to an empty value.
+    Assert.equal(input.textValue, "moz");
+
+    // Clean up.
+    unregisterAutoCompleteSearch(searchNoMatch);
+    run_next_test();
+  };
+});
+
+add_test(function autocomplete_defaultIndex_exceeds_matchCount() {
+  const INPUT_STR = "moz";
+
+  // Result returning matches, but a bad defaultIndex.
+  let searchBadIndex = new AutoCompleteSearchBase(
+    "searchBadIndex",
+    new AutoCompleteBadIndexResult(["mozillaTest"], 1)
+  );
+  registerAutoCompleteSearch(searchBadIndex);
+
+  // Make an AutoCompleteInput that uses our search and confirms results.
+  let input = new AutoCompleteInputBase([searchBadIndex.name]);
+  input.completeDefaultIndex = true;
+  input.textValue = INPUT_STR;
+
+  // Caret must be at the end for autoFill to happen.
+  let strLen = INPUT_STR.length;
+  input.selectTextRange(strLen, strLen);
+  Assert.equal(input.selectionStart, strLen);
+  Assert.equal(input.selectionEnd, strLen);
+
+  let controller = Cc["@mozilla.org/autocomplete/controller;1"].getService(
+    Ci.nsIAutoCompleteController
+  );
+  controller.input = input;
+  controller.startSearch(INPUT_STR);
+
+  input.onSearchComplete = function () {
+    // Should not try to autoFill to an empty value.
+    Assert.equal(input.textValue, "moz");
+
+    // Clean up.
+    unregisterAutoCompleteSearch(searchBadIndex);
+    run_next_test();
+  };
+});