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b101a7d002
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
34 lines
1.3 KiB
Dart
34 lines
1.3 KiB
Dart
// Copyright (c) 2011, 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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// @dart = 2.9
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import "package:expect/expect.dart";
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main() {
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// Test that not providing an optional argument goes to the end.
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Expect.equals("".substring(0), "");
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Expect.throwsRangeError(() => "".substring(1));
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Expect.throwsRangeError(() => "".substring(-1));
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Expect.equals("abc".substring(0), "abc");
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Expect.equals("abc".substring(1), "bc");
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Expect.equals("abc".substring(2), "c");
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Expect.equals("abc".substring(3), "");
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Expect.throwsRangeError(() => "abc".substring(4));
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Expect.throwsRangeError(() => "abc".substring(-1));
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// Test that providing null goes to the end.
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Expect.equals("".substring(0, null), "");
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Expect.throwsRangeError(() => "".substring(1, null));
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Expect.throwsRangeError(() => "".substring(-1, null));
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Expect.equals("abc".substring(0, null), "abc");
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Expect.equals("abc".substring(1, null), "bc");
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Expect.equals("abc".substring(2, null), "c");
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Expect.equals("abc".substring(3, null), "");
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Expect.throwsRangeError(() => "abc".substring(4, null));
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Expect.throwsRangeError(() => "abc".substring(-1, null));
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}
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