floitsch@google.com
4a7dfd2da3
Review URL: https://codereview.chromium.org//11783009 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@16687 260f80e4-7a28-3924-810f-c04153c831b5
89 lines
3.7 KiB
Dart
89 lines
3.7 KiB
Dart
// Copyright (c) 2012, 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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void main() {
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bool checkedMode = false;
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assert(checkedMode = true);
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for (int i = 0; i < 36 * 36 + 1; i++) {
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for (int r = 2; r <= 36; r++) {
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String radixString = i.toRadixString(r);
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Expect.equals(i, int.parse(radixString, radix: r), "");
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Expect.equals(i, int.parse(" $radixString", radix: r), "");
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Expect.equals(i, int.parse("$radixString ", radix: r), "");
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Expect.equals(i, int.parse(" $radixString ", radix: r), "");
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Expect.equals(i, int.parse("+$radixString", radix: r), "");
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Expect.equals(i, int.parse(" +$radixString", radix: r), "");
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Expect.equals(i, int.parse("+$radixString ", radix: r), "");
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Expect.equals(i, int.parse(" +$radixString ", radix: r), "");
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Expect.equals(-i, int.parse("-$radixString", radix: r), "");
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Expect.equals(-i, int.parse(" -$radixString", radix: r), "");
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Expect.equals(-i, int.parse("-$radixString ", radix: r), "");
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Expect.equals(-i, int.parse(" -$radixString ", radix: r), "");
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}
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}
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// Allow both upper- and lower-case letters.
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Expect.equals(0xABCD, int.parse("ABCD", radix: 16));
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Expect.equals(0xABCD, int.parse("abcd", radix: 16));
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Expect.equals(15628859, int.parse("09azAZ", radix: 36));
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// Allow whitespace before and after the number.
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Expect.equals(1, int.parse(" 1", radix: 2));
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Expect.equals(1, int.parse("1 ", radix: 2));
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Expect.equals(1, int.parse(" 1 ", radix: 2));
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Expect.equals(1, int.parse("\n1", radix: 2));
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Expect.equals(1, int.parse("1\n", radix: 2));
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Expect.equals(1, int.parse("\n1\n", radix: 2));
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Expect.equals(1, int.parse("+1", radix: 2));
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void testFails(String source, int radix) {
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Expect.throws(() { throw int.parse(source, radix: radix,
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onError: (s) { throw "FAIL"; }); },
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(e) => e == "FAIL",
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"$source/$radix");
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Expect.equals(-999, int.parse(source, radix: radix, onError: (s) => -999));
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}
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for (int i = 2; i < 36; i++) {
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testFails(i.toRadixString(36), i);
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}
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testFails("", 2);
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testFails("0x10", 16); // No 0x specially allowed.
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testFails("+ 1", 2); // No space between sign and digits.
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testFails("- 1", 2); // No space between sign and digits.
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testBadTypes(var source, var radix) {
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if (!checkedMode) {
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// No promises on what error is thrown if the type doesn't match.
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// Likely either ArgumentError or NoSuchMethodError.
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Expect.throws(() => int.parse(source, radix: radix, onError: (s) => 0));
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return;
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}
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// In checked mode, it's always a TypeError.
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Expect.throws(() => int.parse(source, radix: radix, onError: (s) => 0),
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(e) => e is TypeError);
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}
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testBadTypes(9, 10);
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testBadTypes(true, 10);
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testBadTypes("0", true);
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testBadTypes("0", "10");
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testBadArguments(String source, int radix) {
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// If the types match, it should be an ArgumentError of some sort.
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Expect.throws(() => int.parse(source, radix: radix, onError: (s) => 0),
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(e) => e is ArgumentError);
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}
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testBadArguments("0", -1);
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testBadArguments("0", 0);
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testBadArguments("0", 1);
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testBadArguments("0", 37);
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// If handleError isn't an unary function, and it's called, it also throws
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// (either TypeError in checked mode, or some failure in unchecked mode).
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Expect.throws(() => int.parse("9", radix: 8, onError: "not a function"));
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Expect.throws(() => int.parse("9", radix: 8, onError: () => 42));
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Expect.throws(() => int.parse("9", radix: 8, onError: (v1, v2) => 42));
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}
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