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Side by Side Diff: tests/corelib/src/SortTest.dart

Issue 10244009: test rename overhaul: step 7 - corelib tests (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 8 years, 7 months ago
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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file.
4
5 // Dart test for sort routines.
6 #library("SortTest.dart");
7 #import("dart:coreimpl");
8 #source("SortHelper.dart");
9
10 main() {
11 var compare = (a, b) => a.compareTo(b);
12 var sort = (list) => DualPivotQuicksort.sort(list, compare);
13 new SortHelper(sort, compare).run();
14
15 compare = (a, b) => -a.compareTo(b);
16 new SortHelper(sort, compare).run();
17
18 compare = (a, b) => a.compareTo(b);
19
20 // Pivot-canditate indices: 7, 15, 22, 29, 37
21 // Test dutch flag partitioning (canditates 2 and 4 are the same).
22 var list = [0, 0, 0, 0, 0, 0, 0, 0/**/, 0, 0, 0, 0, 0, 0, 0,
23 1/**/, 1, 1, 1, 1, 1, 1, 1/**/, 1, 1, 1, 1, 1, 1, 1/**/,
24 2, 2, 2, 2, 2, 2, 2, 2/**/, 2, 2, 2, 2, 2, 2, 2];
25 list.sort(compare);
26 Expect.listEquals(list, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
27 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
28 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]);
29
30 list = [0, 0, 0, 0, 0, 0, 0, 1/**/, 0, 0, 0, 0, 0, 0, 0,
31 0/**/, 1, 1, 1, 1, 1, 1, 0/**/, 1, 1, 1, 1, 1, 1, 0/**/,
32 2/**/, 2, 2, 2, 2, 2, 2, 2/**/, 2, 2, 2, 2, 2, 2, 2];
33 list.sort(compare);
34 Expect.listEquals(list, [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
35 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
36 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]);
37
38 // Pivots: 1 and 8.
39 // The second partition will be big (more than 2/3 of the list), and an
40 // optimization kicks in that removes the pivots from the partition.
41 list = [0, 9, 0, 9, 3, 9, 0, 1/**/, 1, 0, 1, 9, 8, 2, 1,
42 1/**/, 4, 5, 2, 5, 0, 1, 8/**/, 8, 8, 5, 2, 2, 9, 8/**/,
43 8, 4, 4, 1, 5, 3, 2, 8/**/, 5, 1, 2, 8, 5, 6, 8];
44 list.sort(compare);
45 Expect.listEquals(list, [0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
46 2, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 5, 5, 5,
47 6, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9]);
48 }
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