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dart / sdk.git / 253d42f34a41394ed6885e0e702a1728ad6deeae / . / pkg / fixnum / test / int_64_test.dart
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// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
library int64test;
import 'package:fixnum/fixnum.dart';
import 'package:unittest/unittest.dart';
void main() {
group("arithmetic operators", () {
Int64 n1 = new Int64.fromInt(1234);
Int64 n2 = new Int64.fromInt(9876);
Int64 n3 = new Int64.fromInt(-1234);
Int64 n4 = new Int64.fromInt(-9876);
Int64 n5 = new Int64.fromInts(0x12345678, 0xabcdabcd);
Int64 n6 = new Int64.fromInts(0x77773333, 0x22224444);
test("+", () {
expect(n1 + n2, new Int64.fromInt(11110));
expect(n3 + n2, new Int64.fromInt(8642));
expect(n3 + n4, new Int64.fromInt(-11110));
expect(n5 + n6, new Int64.fromInts(0x89ab89ab, 0xcdeff011));
expect(Int64.MAX_VALUE + 1, Int64.MIN_VALUE);
});
test("-", () {
expect(n1 - n2, new Int64.fromInt(-8642));
expect(n3 - n2, new Int64.fromInt(-11110));
expect(n3 - n4, new Int64.fromInt(8642));
expect(n5 - n6, new Int64.fromInts(0x9abd2345, 0x89ab6789));
expect(Int64.MIN_VALUE - 1, Int64.MAX_VALUE);
});
test("unary -", () {
expect(-n1, new Int64.fromInt(-1234));
expect(-Int64.ZERO, Int64.ZERO);
});
test("*", () {
expect(new Int64.fromInt(1111) * new Int64.fromInt(3),
new Int64.fromInt(3333));
expect(new Int64.fromInt(1111) * new Int64.fromInt(-3),
new Int64.fromInt(-3333));
expect(new Int64.fromInt(-1111) * new Int64.fromInt(3),
new Int64.fromInt(-3333));
expect(new Int64.fromInt(-1111) * new Int64.fromInt(-3),
new Int64.fromInt(3333));
expect(new Int64.fromInt(100) * new Int64.fromInt(0),
new Int64.fromInt(0));
expect(new Int64.fromInts(0x12345678, 0x12345678) *
new Int64.fromInts(0x1234, 0x12345678),
new Int64.fromInts(0x7ff63f7c, 0x1df4d840));
expect(new Int64.fromInts(0xf2345678, 0x12345678) *
new Int64.fromInts(0x1234, 0x12345678),
new Int64.fromInts(0x7ff63f7c, 0x1df4d840));
expect(new Int64.fromInts(0xf2345678, 0x12345678) *
new Int64.fromInts(0xffff1234, 0x12345678),
new Int64.fromInts(0x297e3f7c, 0x1df4d840));
// RHS Int32
expect((new Int64.fromInt(123456789) * new Int32.fromInt(987654321)),
new Int64.fromInts(0x1b13114, 0xfbff5385));
expect((new Int64.fromInt(123456789) * new Int32.fromInt(987654321)),
new Int64.fromInts(0x1b13114, 0xfbff5385));
// Wraparound
expect((new Int64.fromInt(123456789) * new Int64.fromInt(987654321)),
new Int64.fromInts(0x1b13114, 0xfbff5385));
expect(Int64.MIN_VALUE * new Int64.fromInt(2), new Int64.fromInt(0));
expect(Int64.MIN_VALUE * new Int64.fromInt(1), Int64.MIN_VALUE);
expect(Int64.MIN_VALUE * new Int64.fromInt(-1), Int64.MIN_VALUE);
});
test("~/", () {
Int64 deadBeef = new Int64.fromInts(0xDEADBEEF, 0xDEADBEEF);
Int64 ten = new Int64.fromInt(10);
expect(deadBeef ~/ ten, new Int64.fromInts(0xfcaaf97e, 0x63115fe5));
expect(Int64.ONE ~/ Int64.TWO, Int64.ZERO);
expect(Int64.MAX_VALUE ~/ Int64.TWO,
new Int64.fromInts(0x3fffffff, 0xffffffff));
expect(Int64.ZERO ~/ new Int64.fromInt(1000), Int64.ZERO);
expect(Int64.MIN_VALUE ~/ Int64.MIN_VALUE, Int64.ONE);
expect(new Int64.fromInt(1000) ~/ Int64.MIN_VALUE, Int64.ZERO);
expect(Int64.MIN_VALUE ~/ new Int64.fromInt(8192),
new Int64.fromInt(-1125899906842624));
expect(Int64.MIN_VALUE ~/ new Int64.fromInt(8193),
new Int64.fromInt(-1125762484664320));
expect(new Int64.fromInt(-1000) ~/ new Int64.fromInt(8192), Int64.ZERO);
expect(new Int64.fromInt(-1000) ~/ new Int64.fromInt(8193), Int64.ZERO);
expect(new Int64.fromInt(-1000000000) ~/ new Int64.fromInt(8192),
new Int64.fromInt(-122070));
expect(new Int64.fromInt(-1000000000) ~/ new Int64.fromInt(8193),
new Int64.fromInt(-122055));
expect(new Int64.fromInt(1000000000) ~/ new Int64.fromInt(8192),
new Int64.fromInt(122070));
expect(new Int64.fromInt(1000000000) ~/ new Int64.fromInt(8193),
new Int64.fromInt(122055));
expect(Int64.MAX_VALUE ~/ new Int64.fromInts(0x00000000, 0x00000400),
new Int64.fromInts(0x1fffff, 0xffffffff));
expect(Int64.MAX_VALUE ~/ new Int64.fromInts(0x00000000, 0x00040000),
new Int64.fromInts(0x1fff, 0xffffffff));
expect(Int64.MAX_VALUE ~/ new Int64.fromInts(0x00000000, 0x04000000),
new Int64.fromInts(0x1f, 0xffffffff));
expect(Int64.MAX_VALUE ~/ new Int64.fromInts(0x00000004, 0x00000000),
new Int64.fromInt(536870911));
expect(Int64.MAX_VALUE ~/ new Int64.fromInts(0x00000400, 0x00000000),
new Int64.fromInt(2097151));
expect(Int64.MAX_VALUE ~/ new Int64.fromInts(0x00040000, 0x00000000),
new Int64.fromInt(8191));
expect(Int64.MAX_VALUE ~/ new Int64.fromInts(0x04000000, 0x00000000),
new Int64.fromInt(31));
expect(Int64.MAX_VALUE ~/ new Int64.fromInts(0x00000000, 0x00000300),
new Int64.fromInts(0x2AAAAA, 0xAAAAAAAA));
expect(Int64.MAX_VALUE ~/ new Int64.fromInts(0x00000000, 0x30000000),
new Int64.fromInts(0x2, 0xAAAAAAAA));
expect(Int64.MAX_VALUE ~/ new Int64.fromInts(0x00300000, 0x00000000),
new Int64.fromInt(0x2AA));
expect(Int64.MAX_VALUE ~/ new Int64.fromInt(0x123456),
new Int64.fromInts(0x708, 0x002E9501));
expect(Int64.MAX_VALUE % new Int64.fromInt(0x123456),
new Int64.fromInt(0x3BDA9));
expect(new Int64.fromInt(5) ~/ new Int64.fromInt(5),
new Int64.fromInt(1));
expect(new Int64.fromInt(1000) ~/ new Int64.fromInt(3),
new Int64.fromInt(333));
expect(new Int64.fromInt(1000) ~/ new Int64.fromInt(-3),
new Int64.fromInt(-333));
expect(new Int64.fromInt(-1000) ~/ new Int64.fromInt(3),
new Int64.fromInt(-333));
expect(new Int64.fromInt(-1000) ~/ new Int64.fromInt(-3),
new Int64.fromInt(333));
expect(new Int64.fromInt(3) ~/ new Int64.fromInt(1000),
new Int64.fromInt(0));
expect(new Int64.fromInts( 0x12345678, 0x12345678) ~/
new Int64.fromInts(0x0, 0x123),
new Int64.fromInts(0x1003d0, 0xe84f5ae8));
expect(new Int64.fromInts(0x12345678, 0x12345678) ~/
new Int64.fromInts(0x1234, 0x12345678),
new Int64.fromInts(0x0, 0x10003));
expect(new Int64.fromInts(0xf2345678, 0x12345678) ~/
new Int64.fromInts(0x1234, 0x12345678),
new Int64.fromInts(0xffffffff, 0xffff3dfe));
expect(new Int64.fromInts(0xf2345678, 0x12345678) ~/
new Int64.fromInts(0xffff1234, 0x12345678),
new Int64.fromInts(0x0, 0xeda));
expect(new Int64.fromInt(829893893) ~/ new Int32.fromInt(1919),
new Int32.fromInt(432461));
expect(new Int64.fromInt(829893893) ~/ new Int64.fromInt(1919),
new Int32.fromInt(432461));
expect(new Int64.fromInt(829893893) ~/ 1919,
new Int32.fromInt(432461));
expect(() => new Int64.fromInt(1) ~/ new Int64.fromInt(0),
throwsA(new isInstanceOf<IntegerDivisionByZeroException>()));
expect(Int64.MIN_VALUE ~/ new Int64.fromInt(2),
new Int64.fromInts(0xc0000000, 0x00000000));
expect(Int64.MIN_VALUE ~/ new Int64.fromInt(1), Int64.MIN_VALUE);
expect(Int64.MIN_VALUE ~/ new Int64.fromInt(-1), Int64.MIN_VALUE);
expect(() => new Int64.fromInt(17) ~/ Int64.ZERO, throws);
expect(() => new Int64.fromInt(17) ~/ null, throwsArgumentError);
});
test("%", () {
// Define % as Euclidean mod, with positive result for all arguments
expect(Int64.ZERO % new Int64.fromInt(1000), new Int64.fromInt(0));
expect(Int64.MIN_VALUE % Int64.MIN_VALUE, new Int64.fromInt(0));
expect(new Int64.fromInt(1000) % Int64.MIN_VALUE,
new Int64.fromInt(1000));
expect(Int64.MIN_VALUE % new Int64.fromInt(8192), new Int64.fromInt(0));
expect(Int64.MIN_VALUE % new Int64.fromInt(8193),
new Int64.fromInt(6145));
expect(new Int64.fromInt(-1000) % new Int64.fromInt(8192),
new Int64.fromInt(7192));
expect(new Int64.fromInt(-1000) % new Int64.fromInt(8193),
new Int64.fromInt(7193));
expect(new Int64.fromInt(-1000000000) % new Int64.fromInt(8192),
new Int64.fromInt(5632));
expect(new Int64.fromInt(-1000000000) % new Int64.fromInt(8193),
new Int64.fromInt(4808));
expect(new Int64.fromInt(1000000000) % new Int64.fromInt(8192),
new Int64.fromInt(2560));
expect(new Int64.fromInt(1000000000) % new Int64.fromInt(8193),
new Int64.fromInt(3385));
expect(Int64.MAX_VALUE % new Int64.fromInts(0x00000000, 0x00000400),
new Int64.fromInts(0x0, 0x3ff));
expect(Int64.MAX_VALUE % new Int64.fromInts(0x00000000, 0x00040000),
new Int64.fromInts(0x0, 0x3ffff));
expect(Int64.MAX_VALUE % new Int64.fromInts(0x00000000, 0x04000000),
new Int64.fromInts(0x0, 0x3ffffff));
expect(Int64.MAX_VALUE % new Int64.fromInts(0x00000004, 0x00000000),
new Int64.fromInts(0x3, 0xffffffff));
expect(Int64.MAX_VALUE % new Int64.fromInts(0x00000400, 0x00000000),
new Int64.fromInts(0x3ff, 0xffffffff));
expect(Int64.MAX_VALUE % new Int64.fromInts(0x00040000, 0x00000000),
new Int64.fromInts(0x3ffff, 0xffffffff));
expect(Int64.MAX_VALUE % new Int64.fromInts(0x04000000, 0x00000000),
new Int64.fromInts(0x3ffffff, 0xffffffff));
expect(new Int64.fromInt(0x12345678).remainder(new Int64.fromInt(0x22)),
new Int64.fromInt(0x12345678.remainder(0x22)));
expect(new Int64.fromInt(0x12345678).remainder(new Int64.fromInt(-0x22)),
new Int64.fromInt(0x12345678.remainder(-0x22)));
expect(new Int64.fromInt(-0x12345678).remainder(new Int64.fromInt(-0x22)),
new Int64.fromInt(-0x12345678.remainder(-0x22)));
expect(new Int64.fromInt(-0x12345678).remainder(new Int64.fromInt(0x22)),
new Int64.fromInt(-0x12345678.remainder(0x22)));
expect(new Int32.fromInt(0x12345678).remainder(new Int64.fromInt(0x22)),
new Int64.fromInt(0x12345678.remainder(0x22)));
});
});
group("comparison operators", () {
Int64 largeNeg = new Int64.fromInts(0x82341234, 0x0);
Int64 largePos = new Int64.fromInts(0x12341234, 0x0);
Int64 largePosPlusOne = largePos + new Int64.fromInt(1);
test("<", () {
expect(new Int64.fromInt(10) < new Int64.fromInt(11), true);
expect(new Int64.fromInt(10) < new Int64.fromInt(10), false);
expect(new Int64.fromInt(10) < new Int64.fromInt(9), false);
expect(new Int64.fromInt(10) < new Int32.fromInt(11), true);
expect(new Int64.fromInt(10) < new Int32.fromInt(10), false);
expect(new Int64.fromInt(10) < new Int32.fromInt(9), false);
expect(new Int64.fromInt(-10) < new Int64.fromInt(-11), false);
expect(Int64.MIN_VALUE < new Int64.fromInt(0), true);
expect(largeNeg < largePos, true);
expect(largePos < largePosPlusOne, true);
expect(largePos < largePos, false);
expect(largePosPlusOne < largePos, false);
expect(Int64.MIN_VALUE < Int64.MAX_VALUE, true);
expect(Int64.MAX_VALUE < Int64.MIN_VALUE, false);
expect(() => new Int64.fromInt(17) < null, throwsArgumentError);
});
test("<=", () {
expect(new Int64.fromInt(10) <= new Int64.fromInt(11), true);
expect(new Int64.fromInt(10) <= new Int64.fromInt(10), true);
expect(new Int64.fromInt(10) <= new Int64.fromInt(9), false);
expect(new Int64.fromInt(10) <= new Int32.fromInt(11), true);
expect(new Int64.fromInt(10) <= new Int32.fromInt(10), true);
expect(new Int64.fromInt(10) <= new Int64.fromInt(9), false);
expect(new Int64.fromInt(-10) <= new Int64.fromInt(-11), false);
expect(new Int64.fromInt(-10) <= new Int64.fromInt(-10), true);
expect(largeNeg <= largePos, true);
expect(largePos <= largeNeg, false);
expect(largePos <= largePosPlusOne, true);
expect(largePos <= largePos, true);
expect(largePosPlusOne <= largePos, false);
expect(Int64.MIN_VALUE <= Int64.MAX_VALUE, true);
expect(Int64.MAX_VALUE <= Int64.MIN_VALUE, false);
expect(() => new Int64.fromInt(17) <= null, throwsArgumentError);
});
test("==", () {
expect(new Int64.fromInt(10) == new Int64.fromInt(11), false);
expect(new Int64.fromInt(10) == new Int64.fromInt(10), true);
expect(new Int64.fromInt(10) == new Int64.fromInt(9), false);
expect(new Int64.fromInt(10) == new Int32.fromInt(11), false);
expect(new Int64.fromInt(10) == new Int32.fromInt(10), true);
expect(new Int64.fromInt(10) == new Int32.fromInt(9), false);
expect(new Int64.fromInt(-10) == new Int64.fromInt(-10), true);
expect(new Int64.fromInt(-10) != new Int64.fromInt(-10), false);
expect(largePos == largePos, true);
expect(largePos == largePosPlusOne, false);
expect(largePosPlusOne == largePos, false);
expect(Int64.MIN_VALUE == Int64.MAX_VALUE, false);
expect(new Int64.fromInt(17) == new Object(), false);
expect(new Int64.fromInt(17) == null, false);
});
test(">=", () {
expect(new Int64.fromInt(10) >= new Int64.fromInt(11), false);
expect(new Int64.fromInt(10) >= new Int64.fromInt(10), true);
expect(new Int64.fromInt(10) >= new Int64.fromInt(9), true);
expect(new Int64.fromInt(10) >= new Int32.fromInt(11), false);
expect(new Int64.fromInt(10) >= new Int32.fromInt(10), true);
expect(new Int64.fromInt(10) >= new Int32.fromInt(9), true);
expect(new Int64.fromInt(-10) >= new Int64.fromInt(-11), true);
expect(new Int64.fromInt(-10) >= new Int64.fromInt(-10), true);
expect(largePos >= largeNeg, true);
expect(largeNeg >= largePos, false);
expect(largePos >= largePosPlusOne, false);
expect(largePos >= largePos, true);
expect(largePosPlusOne >= largePos, true);
expect(Int64.MIN_VALUE >= Int64.MAX_VALUE, false);
expect(Int64.MAX_VALUE >= Int64.MIN_VALUE, true);
expect(() => new Int64.fromInt(17) >= null, throwsArgumentError);
});
test(">", () {
expect(new Int64.fromInt(10) > new Int64.fromInt(11), false);
expect(new Int64.fromInt(10) > new Int64.fromInt(10), false);
expect(new Int64.fromInt(10) > new Int64.fromInt(9), true);
expect(new Int64.fromInt(10) > new Int32.fromInt(11), false);
expect(new Int64.fromInt(10) > new Int32.fromInt(10), false);
expect(new Int64.fromInt(10) > new Int32.fromInt(9), true);
expect(new Int64.fromInt(-10) > new Int64.fromInt(-11), true);
expect(new Int64.fromInt(10) > new Int64.fromInt(-11), true);
expect(new Int64.fromInt(-10) > new Int64.fromInt(11), false);
expect(largePos > largeNeg, true);
expect(largeNeg > largePos, false);
expect(largePos > largePosPlusOne, false);
expect(largePos > largePos, false);
expect(largePosPlusOne > largePos, true);
expect(new Int64.fromInt(0) > Int64.MIN_VALUE, true);
expect(Int64.MIN_VALUE > Int64.MAX_VALUE, false);
expect(Int64.MAX_VALUE > Int64.MIN_VALUE, true);
expect(() => new Int64.fromInt(17) > null, throwsArgumentError);
});
});
group("bitwise operators", () {
Int64 n1 = new Int64.fromInt(1234);
Int64 n2 = new Int64.fromInt(9876);
Int64 n3 = new Int64.fromInt(-1234);
Int64 n4 = new Int64.fromInt(0x1234) << 32;
Int64 n5 = new Int64.fromInt(0x9876) << 32;
test("&", () {
expect(n1 & n2, new Int64.fromInt(1168));
expect(n3 & n2, new Int64.fromInt(8708));
expect(n4 & n5, new Int64.fromInt(0x1034) << 32);
expect(() => n1 & null, throwsArgumentError);
});
test("|", () {
expect(n1 | n2, new Int64.fromInt(9942));
expect(n3 | n2, new Int64.fromInt(-66));
expect(n4 | n5, new Int64.fromInt(0x9a76) << 32);
expect(() => n1 | null, throwsArgumentError);
});
test("^", () {
expect(n1 ^ n2, new Int64.fromInt(8774));
expect(n3 ^ n2, new Int64.fromInt(-8774));
expect(n4 ^ n5, new Int64.fromInt(0x8a42) << 32);
expect(() => n1 ^ null, throwsArgumentError);
});
test("~", () {
expect(-new Int64.fromInt(1), new Int64.fromInt(-1));
expect(-new Int64.fromInt(-1), new Int64.fromInt(1));
expect(-Int64.MIN_VALUE, Int64.MIN_VALUE);
expect(~n1, new Int64.fromInt(-1235));
expect(~n2, new Int64.fromInt(-9877));
expect(~n3, new Int64.fromInt(1233));
expect(~n4, new Int64.fromInts(0xffffedcb, 0xffffffff));
expect(~n5, new Int64.fromInts(0xffff6789, 0xffffffff));
});
});
group("bitshift operators", () {
test("<<", () {
expect(new Int64.fromInts(0x12341234, 0x45674567) << 10,
new Int64.fromInts(0xd048d115, 0x9d159c00));
expect(new Int64.fromInts(0x92341234, 0x45674567) << 10,
new Int64.fromInts(0xd048d115, 0x9d159c00));
expect(new Int64.fromInt(-1) << 5, new Int64.fromInt(-32));
expect(new Int64.fromInt(-1) << 0, new Int64.fromInt(-1));
expect(() => new Int64.fromInt(17) << -1, throwsArgumentError);
expect(() => new Int64.fromInt(17) << null, throws);
});
test(">>", () {
expect((Int64.MIN_VALUE >> 13).toString(), "-1125899906842624");
expect(new Int64.fromInts(0x12341234, 0x45674567) >> 10,
new Int64.fromInts(0x48d04, 0x8d1159d1));
expect(new Int64.fromInts(0x92341234, 0x45674567) >> 10,
new Int64.fromInts(0xffe48d04, 0x8d1159d1));
expect(new Int64.fromInts(0xFFFFFFF, 0xFFFFFFFF) >> 34,
new Int64.fromInt(67108863));
for (int n = 0; n <= 66; n++) {
expect(new Int64.fromInt(-1) >> n, new Int64.fromInt(-1));
}
expect(new Int64.fromInts(0x72345678, 0x9abcdef0) >> 8,
new Int64.fromInts(0x00723456, 0x789abcde));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0) >> 16,
new Int64.fromInts(0x00007234, 0x56789abc));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0) >> 24,
new Int64.fromInts(0x00000072, 0x3456789a));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0) >> 28,
new Int64.fromInts(0x00000007, 0x23456789));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0) >> 32,
new Int64.fromInts(0x00000000, 0x72345678));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0) >> 36,
new Int64.fromInts(0x00000000, 0x07234567));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0) >> 40,
new Int64.fromInts(0x00000000, 0x00723456));
expect(new Int64.fromInts(0x72345678, 0x9abcde00) >> 44,
new Int64.fromInts(0x00000000, 0x00072345));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0) >> 48,
new Int64.fromInts(0x00000000, 0x00007234));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0) >> 8,
new Int64.fromInts(0xff923456, 0x789abcde));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0) >> 16,
new Int64.fromInts(0xffff9234, 0x56789abc));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0) >> 24,
new Int64.fromInts(0xffffff92, 0x3456789a));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0) >> 28,
new Int64.fromInts(0xfffffff9, 0x23456789));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0) >> 32,
new Int64.fromInts(0xffffffff, 0x92345678));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0) >> 36,
new Int64.fromInts(0xffffffff, 0xf9234567));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0) >> 40,
new Int64.fromInts(0xffffffff, 0xff923456));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0) >> 44,
new Int64.fromInts(0xffffffff, 0xfff92345));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0) >> 48,
new Int64.fromInts(0xffffffff, 0xffff9234));
expect(() => new Int64.fromInt(17) >> -1, throwsArgumentError);
expect(() => new Int64.fromInt(17) >> null, throws);
});
test("shiftRightUnsigned", () {
expect(new Int64.fromInts(0x12341234, 0x45674567).shiftRightUnsigned(10),
new Int64.fromInts(0x48d04, 0x8d1159d1));
expect(new Int64.fromInts(0x92341234, 0x45674567).shiftRightUnsigned(10),
new Int64.fromInts(0x248d04, 0x8d1159d1));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0).shiftRightUnsigned(8),
new Int64.fromInts(0x00723456, 0x789abcde));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0).shiftRightUnsigned(16),
new Int64.fromInts(0x00007234, 0x56789abc));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0).shiftRightUnsigned(24),
new Int64.fromInts(0x00000072, 0x3456789a));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0).shiftRightUnsigned(28),
new Int64.fromInts(0x00000007, 0x23456789));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0).shiftRightUnsigned(32),
new Int64.fromInts(0x00000000, 0x72345678));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0).shiftRightUnsigned(36),
new Int64.fromInts(0x00000000, 0x07234567));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0).shiftRightUnsigned(40),
new Int64.fromInts(0x00000000, 0x00723456));
expect(new Int64.fromInts(0x72345678, 0x9abcde00).shiftRightUnsigned(44),
new Int64.fromInts(0x00000000, 0x00072345));
expect(new Int64.fromInts(0x72345678, 0x9abcdef0).shiftRightUnsigned(48),
new Int64.fromInts(0x00000000, 0x00007234));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0).shiftRightUnsigned(8),
new Int64.fromInts(0x00923456, 0x789abcde));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0).shiftRightUnsigned(16),
new Int64.fromInts(0x00009234, 0x56789abc));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0).shiftRightUnsigned(24),
new Int64.fromInts(0x00000092, 0x3456789a));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0).shiftRightUnsigned(28),
new Int64.fromInts(0x00000009, 0x23456789));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0).shiftRightUnsigned(32),
new Int64.fromInts(0x00000000, 0x92345678));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0).shiftRightUnsigned(36),
new Int64.fromInts(0x00000000, 0x09234567));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0).shiftRightUnsigned(40),
new Int64.fromInts(0x00000000, 0x00923456));
expect(new Int64.fromInts(0x92345678, 0x9abcdef0).shiftRightUnsigned(44),
new Int64.fromInts(0x00000000, 0x00092345));
expect(new Int64.fromInts(0x00000000, 0x00009234),
new Int64.fromInts(0x92345678, 0x9abcdef0).shiftRightUnsigned(48));
expect(() => new Int64.fromInt(17).shiftRightUnsigned(-1),
throwsArgumentError);
expect(() => new Int64.fromInt(17).shiftRightUnsigned(null), throws);
});
test("overflow", () {
expect((new Int64.fromInt(1) << 63) >> 1,
-new Int64.fromInts(0x40000000, 0x00000000));
expect((new Int64.fromInt(-1) << 32) << 32, new Int64.fromInt(0));
expect(Int64.MIN_VALUE << 0, Int64.MIN_VALUE);
expect(Int64.MIN_VALUE << 1, new Int64.fromInt(0));
expect((-new Int64.fromInts(8, 0)) >> 1,
new Int64.fromInts(0xfffffffc, 0x00000000));
expect((-new Int64.fromInts(8, 0)).shiftRightUnsigned(1),
new Int64.fromInts(0x7ffffffc, 0x0));
});
});
group("type conversions", () {
test("toInt", () {
expect(new Int64.fromInt(0).toInt(), 0);
expect(new Int64.fromInt(100).toInt(), 100);
expect(new Int64.fromInt(-100).toInt(), -100);
expect(new Int64.fromInt(2147483647).toInt(), 2147483647);
expect(new Int64.fromInt(2147483648).toInt(), 2147483648);
expect(new Int64.fromInt(-2147483647).toInt(), -2147483647);
expect(new Int64.fromInt(-2147483648).toInt(), -2147483648);
expect(new Int64.fromInt(4503599627370495).toInt(), 4503599627370495);
expect(new Int64.fromInt(4503599627370496).toInt(), 4503599627370496);
expect(new Int64.fromInt(-4503599627370495).toInt(), -4503599627370495);
expect(new Int64.fromInt(-4503599627370496).toInt(), -4503599627370496);
});
test("toInt32", () {
expect(new Int64.fromInt(0).toInt32(), new Int32.fromInt(0));
expect(new Int64.fromInt(1).toInt32(), new Int32.fromInt(1));
expect(new Int64.fromInt(-1).toInt32(), new Int32.fromInt(-1));
expect(new Int64.fromInt(2147483647).toInt32(),
new Int32.fromInt(2147483647));
expect(new Int64.fromInt(2147483648).toInt32(),
new Int32.fromInt(-2147483648));
expect(new Int64.fromInt(2147483649).toInt32(),
new Int32.fromInt(-2147483647));
expect(new Int64.fromInt(2147483650).toInt32(),
new Int32.fromInt(-2147483646));
expect(new Int64.fromInt(-2147483648).toInt32(),
new Int32.fromInt(-2147483648));
expect(new Int64.fromInt(-2147483649).toInt32(),
new Int32.fromInt(2147483647));
expect(new Int64.fromInt(-2147483650).toInt32(),
new Int32.fromInt(2147483646));
expect(new Int64.fromInt(-2147483651).toInt32(),
new Int32.fromInt(2147483645));
});
});
test("JavaScript 53-bit integer boundary", () {
Int64 _factorial(Int64 n) {
if (n.isZero) {
return new Int64.fromInt(1);
} else {
return n * _factorial(n - new Int64.fromInt(1));
}
}
Int64 fact18 = _factorial(new Int64.fromInt(18));
Int64 fact17 = _factorial(new Int64.fromInt(17));
expect(fact18 ~/ fact17, new Int64.fromInt(18));
});
test("min, max values", () {
expect(new Int64.fromInt(1) << 63, Int64.MIN_VALUE);
expect(-(Int64.MIN_VALUE + new Int64.fromInt(1)), Int64.MAX_VALUE);
});
group("parse", () {
test("parseRadix10", () {
checkInt(int x) {
expect(Int64.parseRadix('$x', 10), new Int64.fromInt(x));
}
checkInt(0);
checkInt(1);
checkInt(-1);
checkInt(1000);
checkInt(12345678);
checkInt(-12345678);
checkInt(2147483647);
checkInt(2147483648);
checkInt(-2147483647);
checkInt(-2147483648);
checkInt(4294967295);
checkInt(4294967296);
checkInt(-4294967295);
checkInt(-4294967296);
});
test("parseRadix", () {
check(String s, int r, String x) {
expect(Int64.parseRadix(s, r).toString(), x);
}
check('ghoul', 36, '27699213');
check('ghoul', 35, '24769346');
// Min and max value.
check("-9223372036854775808", 10, "-9223372036854775808");
check("9223372036854775807", 10, "9223372036854775807");
// Overflow during parsing.
check("9223372036854775808", 10, "-9223372036854775808");
});
test("parseRadixN", () {
check(String s, int r) {
expect(Int64.parseRadix(s, r).toRadixString(r), s);
}
check("2ppp111222333", 33); // This value & radix requires three chunks.
});
});
group("string representation", () {
test("toString", () {
expect(new Int64.fromInt(0).toString(), "0");
expect(new Int64.fromInt(1).toString(), "1");
expect(new Int64.fromInt(-1).toString(), "-1");
expect(new Int64.fromInt(-10).toString(), "-10");
expect(Int64.MIN_VALUE.toString(), "-9223372036854775808");
expect(Int64.MAX_VALUE.toString(), "9223372036854775807");
int top = 922337201;
int bottom = 967490662;
Int64 fullnum = (new Int64.fromInt(1000000000) * new Int64.fromInt(top)) +
new Int64.fromInt(bottom);
expect(fullnum.toString(), "922337201967490662");
expect((-fullnum).toString(), "-922337201967490662");
expect(new Int64.fromInt(123456789).toString(), "123456789");
});
test("toHexString", () {
Int64 deadbeef12341234 = new Int64.fromInts(0xDEADBEEF, 0x12341234);
expect(Int64.ZERO.toHexString(), "0");
expect(deadbeef12341234.toHexString(), "DEADBEEF12341234");
expect(new Int64.fromInts(0x17678A7, 0xDEF01234).toHexString(),
"17678A7DEF01234");
expect(new Int64.fromInt(123456789).toHexString(), "75BCD15");
});
test("toRadixString", () {
expect(new Int64.fromInt(123456789).toRadixString(5), "223101104124");
expect(Int64.MIN_VALUE.toRadixString(2),
"-1000000000000000000000000000000000000000000000000000000000000000");
expect(Int64.MIN_VALUE.toRadixString(3),
"-2021110011022210012102010021220101220222");
expect(Int64.MIN_VALUE.toRadixString(4),
"-20000000000000000000000000000000");
expect(Int64.MIN_VALUE.toRadixString(5), "-1104332401304422434310311213");
expect(Int64.MIN_VALUE.toRadixString(6), "-1540241003031030222122212");
expect(Int64.MIN_VALUE.toRadixString(7), "-22341010611245052052301");
expect(Int64.MIN_VALUE.toRadixString(8), "-1000000000000000000000");
expect(Int64.MIN_VALUE.toRadixString(9), "-67404283172107811828");
expect(Int64.MIN_VALUE.toRadixString(10), "-9223372036854775808");
expect(Int64.MIN_VALUE.toRadixString(11), "-1728002635214590698");
expect(Int64.MIN_VALUE.toRadixString(12), "-41a792678515120368");
expect(Int64.MIN_VALUE.toRadixString(13), "-10b269549075433c38");
expect(Int64.MIN_VALUE.toRadixString(14), "-4340724c6c71dc7a8");
expect(Int64.MIN_VALUE.toRadixString(15), "-160e2ad3246366808");
expect(Int64.MIN_VALUE.toRadixString(16), "-8000000000000000");
expect(Int64.MAX_VALUE.toRadixString(2),
"111111111111111111111111111111111111111111111111111111111111111");
expect(Int64.MAX_VALUE.toRadixString(3),
"2021110011022210012102010021220101220221");
expect(Int64.MAX_VALUE.toRadixString(4),
"13333333333333333333333333333333");
expect(Int64.MAX_VALUE.toRadixString(5), "1104332401304422434310311212");
expect(Int64.MAX_VALUE.toRadixString(6), "1540241003031030222122211");
expect(Int64.MAX_VALUE.toRadixString(7), "22341010611245052052300");
expect(Int64.MAX_VALUE.toRadixString(8), "777777777777777777777");
expect(Int64.MAX_VALUE.toRadixString(9), "67404283172107811827");
expect(Int64.MAX_VALUE.toRadixString(10), "9223372036854775807");
expect(Int64.MAX_VALUE.toRadixString(11), "1728002635214590697");
expect(Int64.MAX_VALUE.toRadixString(12), "41a792678515120367");
expect(Int64.MAX_VALUE.toRadixString(13), "10b269549075433c37");
expect(Int64.MAX_VALUE.toRadixString(14), "4340724c6c71dc7a7");
expect(Int64.MAX_VALUE.toRadixString(15), "160e2ad3246366807");
expect(Int64.MAX_VALUE.toRadixString(16), "7fffffffffffffff");
});
});
}