Johnni Winther
b5c4b6f3d7
Closes #50985 Change-Id: I04e407414eb6dafe6451f2bb37653670cbbc2466 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/278905 Reviewed-by: Jens Johansen <jensj@google.com> Commit-Queue: Johnni Winther <johnniwinther@google.com>
60 lines
1.7 KiB
Dart
60 lines
1.7 KiB
Dart
// Copyright (c) 2023, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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test(o, [expectedRest]) {
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switch (o) {
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case [0, 1, ...]:
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return 0;
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case [0, ..., 1]:
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return 1;
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case [0, 2, ... var rest]:
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expect(expectedRest, rest);
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return 2;
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case [0, ... var rest, 2]:
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expect(expectedRest, rest);
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return 3;
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case [0, 4, ... var rest, 2, 3]:
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expect(expectedRest, rest);
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return 4;
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case [0, 5, ... [1, ... var rest, 2], 2, 3]:
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expect(expectedRest, rest);
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return 5;
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}
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}
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main() {
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expect(0, test([0, 1]));
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expect(0, test([0, 1, 2]));
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expect(1, test([0, 2, 1]));
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expect(1, test([0, 2, 3, 1]));
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expect(2, test([0, 2], []));
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expect(2, test([0, 2, 2], [2]));
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expect(2, test([0, 2, 3], [3]));
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expect(2, test([0, 2, 3, 4], [3, 4]));
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expect(3, test([0, 3, 4, 2], [3, 4]));
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expect(3, test([0, 3, 4, 5, 2], [3, 4, 5]));
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expect(4, test([0, 4, 2, 3], []));
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expect(4, test([0, 4, 2, 2, 3], [2]));
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expect(4, test([0, 4, 2, 3, 2, 3], [2, 3]));
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expect(null, test([0, 5, 3, 2, 3]));
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expect(null, test([0, 5, [], 2, 3]));
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expect(null, test([0, 5, [0, 1], 2, 3]));
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expect(5, test([0, 5, 1, 2, 2, 3], []));
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expect(5, test([0, 5, 1, 3, 2, 2, 3], [3]));
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}
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expect(expected, actual) {
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if (expected is List && actual is List) {
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if (expected.length == actual.length) {
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for (int i = 0; i < expected.length; i++) {
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if (expected[i] != actual[i]) {
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throw 'Expected ${expected[i]}, actual ${actual[i]} @ index $i';
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}
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}
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return;
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}
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}
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if (expected != actual) throw 'Expected $expected, actual $actual';
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}
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