Jacob Richman
2dcd56ef43
There are far too many files here to review everyone carefully. Spot checking most of the diffs look good as test code is generally written with less care than application code so lots of ugly formatting get through. If people notice files where the automated formatting bothers them feel free to comment indicating file names and I'll move spaces within comments to make the formatting cleaner and use comments to force block formatting as I have done for other case where formatting looked bad. BUG= R=efortuna@google.com Review-Url: https://codereview.chromium.org/2771453003 .
114 lines
2.9 KiB
Dart
114 lines
2.9 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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// Testing Mints. Note that the tests may not work on 64-bit machines,
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// as Smi's would be used to represent many of the numbers.
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library MediumIntegerTest;
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import "package:expect/expect.dart";
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class MediumIntegerTest {
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static int getMint() {
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return 1234567890123456789;
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}
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static testSmiOverflow() {
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int a = 1073741823;
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int b = 1073741822;
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Expect.equals(2147483645, a + b);
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Expect.equals(1152921501385621506, a * b);
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Expect.equals(-2147483645, -a - b);
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}
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static testMintAdd() {
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// Mint and Smi.
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var a = 1234567890123456789;
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var b = 2;
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Expect.equals(1234567890123456791, a + b);
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Expect.equals(1234567890123456791, b + a);
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a = 9223372036854775807;
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Expect.equals(9223372036854775808, a + 1);
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// Mint and Mint.
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a = 100000000000000001;
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Expect.equals(200000000000000002, a + a);
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a = 9223372036854775800;
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b = 1000000000000000000;
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Expect.equals(10223372036854775800, a + b);
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// Mint and Bigint.
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a = 100000000000000001;
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b = 10000000000000000001;
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Expect.equals(10100000000000000002, a + b);
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// Mint and double.
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a = 100000000000.0;
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b = 100000000000;
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Expect.equals(200000000000.0, a + b);
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Expect.equals(200000000000.0, b + a);
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}
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static testMintSub() {
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// Mint and Smi.
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var a = 1234567890123456789;
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var b = 2;
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Expect.equals(1234567890123456787, a - b);
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a = -9223372036854775808;
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Expect.equals(-9223372036854775809, a - 1);
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// Mint and Mint.
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a = 1234567890123456789;
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b = 1000000000000000000;
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Expect.equals(234567890123456789, a - b);
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a = -9223372036854775808;
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b = 1000000000000000000;
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Expect.equals(-10223372036854775808, a - b);
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}
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static testMintDiv() {
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// Mint and Smi.
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var a = 1234567890123456788;
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var b = 2;
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Expect.equals(617283945061728394.0, a / b);
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}
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static testMintMul() {
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// Mint and Smi.
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var a = 4611686018427387904;
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var b = 10;
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Expect.equals(46116860184273879040, a * b);
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b = 1000000000000000000;
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Expect.equals(4611686018427387904000000000000000000, a * b);
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}
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static testMintAnd(mint) {
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// Issue 1845.
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final int t = 0;
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var res = mint & (t - 1);
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Expect.equals(mint, res);
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}
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static void testMain() {
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Expect.equals(1234567890123456789, getMint());
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testSmiOverflow();
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testMintAdd();
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testMintSub();
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testMintMul();
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testMintDiv();
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testMintAnd(-1925149952);
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testMintAnd(1925149952);
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testMintAnd(0x100000001);
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var a = 100000000000;
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var b = 100000000001;
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Expect.equals(false, a.hashCode == b.hashCode);
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Expect.equals(true, a.hashCode == (b - 1).hashCode);
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}
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}
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main() {
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for (int i = 0; i < 4000; i++) {
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MediumIntegerTest.testMain();
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}
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}
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