Migrated test block 14 to Dart 2.0.

tests/corelib_strong/list_removeat_test.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import "package:expect/expect.dart";
-import 'dart:collection';
-
-class MyList extends ListBase {
-  List list;
-  MyList(this.list);
-
-  get length => list.length;
-  set length(val) {
-    list.length = val;
-  }
-
-  operator [](index) => list[index];
-  operator []=(index, val) => list[index] = val;
-
-  String toString() => "[" + join(", ") + "]";
-}
-
-// l1 must be a modifiable list with 5 elements from 0 to 4.
-void testModifiableList(l1) {
-  bool checkedMode = false;
-  assert(checkedMode = true);
-
-  // Index must be integer and in range.
-  Expect.throws(() {
-    l1.removeAt(-1);
-  }, (e) => e is RangeError, "negative");
-  Expect.throws(() {
-    l1.removeAt(5);
-  }, (e) => e is RangeError, "too large");
-  Expect.throws(() {
-    l1.removeAt(null);
-  }, (e) => e is ArgumentError, "too large");
-  Expect.throws(() {
-    l1.removeAt("1");
-  }, (e) => (checkedMode ? e is TypeError : e is ArgumentError), "string");
-  Expect.throws(() {
-    l1.removeAt(1.5);
-  }, (e) => (checkedMode ? e is TypeError : e is ArgumentError), "double");
-
-  Expect.equals(2, l1.removeAt(2), "l1-remove2");
-  Expect.equals(1, l1[1], "l1-1[1]");
-
-  Expect.equals(3, l1[2], "l1-1[2]");
-  Expect.equals(4, l1[3], "l1-1[3]");
-  Expect.equals(4, l1.length, "length-1");
-
-  Expect.equals(0, l1.removeAt(0), "l1-remove0");
-  Expect.equals(1, l1[0], "l1-2[0]");
-  Expect.equals(3, l1[1], "l1-2[1]");
-  Expect.equals(4, l1[2], "l1-2[2]");
-  Expect.equals(3, l1.length, "length-2");
-}
-
-void main() {
-  // Normal modifiable list.
-  testModifiableList([0, 1, 2, 3, 4]);
-  testModifiableList(new MyList([0, 1, 2, 3, 4]));
-
-  // Fixed size list.
-  var l2 = new List(5);
-  for (var i = 0; i < 5; i++) l2[i] = i;
-  Expect.throws(() {
-    l2.removeAt(2);
-  }, (e) => e is UnsupportedError, "fixed-length");
-
-  // Unmodifiable list.
-  var l3 = const [0, 1, 2, 3, 4];
-  Expect.throws(() {
-    l3.removeAt(2);
-  }, (e) => e is UnsupportedError, "unmodifiable");
-
-  // Empty list is not special.
-  var l4 = [];
-  Expect.throws(() {
-    l4.removeAt(0);
-  }, (e) => e is RangeError, "empty");
-}