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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 library Int32test; | 5 library Int32test; |
6 | 6 |
7 import 'package:fixnum/fixnum.dart'; | 7 import 'package:fixnum/fixnum.dart'; |
8 import 'package:unittest/unittest.dart'; | 8 import 'package:unittest/unittest.dart'; |
9 | 9 |
10 void main() { | 10 void main() { |
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50 expect(Int32.MAX_VALUE.bitLength, 31); | 50 expect(Int32.MAX_VALUE.bitLength, 31); |
51 expect(Int32.MIN_VALUE.bitLength, 31); | 51 expect(Int32.MIN_VALUE.bitLength, 31); |
52 }); | 52 }); |
53 }); | 53 }); |
54 | 54 |
55 group("arithmetic operators", () { | 55 group("arithmetic operators", () { |
56 Int32 n1 = new Int32(1234); | 56 Int32 n1 = new Int32(1234); |
57 Int32 n2 = new Int32(9876); | 57 Int32 n2 = new Int32(9876); |
58 Int32 n3 = new Int32(-1234); | 58 Int32 n3 = new Int32(-1234); |
59 Int32 n4 = new Int32(-9876); | 59 Int32 n4 = new Int32(-9876); |
60 Int32 n5 = new Int32(0x12345678); | |
61 Int32 n6 = new Int32(0x22222222); | |
62 | 60 |
63 test("+", () { | 61 test("+", () { |
64 expect(n1 + n2, new Int32(11110)); | 62 expect(n1 + n2, new Int32(11110)); |
65 expect(n3 + n2, new Int32(8642)); | 63 expect(n3 + n2, new Int32(8642)); |
66 expect(n3 + n4, new Int32(-11110)); | 64 expect(n3 + n4, new Int32(-11110)); |
67 expect(n3 + new Int64(1), new Int64(-1233)); | 65 expect(n3 + new Int64(1), new Int64(-1233)); |
68 expect(Int32.MAX_VALUE + 1, Int32.MIN_VALUE); | 66 expect(Int32.MAX_VALUE + 1, Int32.MIN_VALUE); |
69 expect(() => new Int32(17) + null, throws); | 67 expect(() => new Int32(17) + null, throws); |
70 }); | 68 }); |
71 | 69 |
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310 }); | 308 }); |
311 | 309 |
312 group("conversions", () { | 310 group("conversions", () { |
313 test("toSigned", () { | 311 test("toSigned", () { |
314 expect(Int32.ONE.toSigned(2), Int32.ONE); | 312 expect(Int32.ONE.toSigned(2), Int32.ONE); |
315 expect(Int32.ONE.toSigned(1), -Int32.ONE); | 313 expect(Int32.ONE.toSigned(1), -Int32.ONE); |
316 expect(Int32.MAX_VALUE.toSigned(32), Int32.MAX_VALUE); | 314 expect(Int32.MAX_VALUE.toSigned(32), Int32.MAX_VALUE); |
317 expect(Int32.MIN_VALUE.toSigned(32), Int32.MIN_VALUE); | 315 expect(Int32.MIN_VALUE.toSigned(32), Int32.MIN_VALUE); |
318 expect(Int32.MAX_VALUE.toSigned(31), -Int32.ONE); | 316 expect(Int32.MAX_VALUE.toSigned(31), -Int32.ONE); |
319 expect(Int32.MIN_VALUE.toSigned(31), Int32.ZERO); | 317 expect(Int32.MIN_VALUE.toSigned(31), Int32.ZERO); |
320 expect(() => Int32.ONE.toSigned(0), throws); | 318 expect(() => Int32.ONE.toSigned(0), throwsRangeError); |
321 expect(() => Int32.ONE.toSigned(33), throws); | 319 expect(() => Int32.ONE.toSigned(33), throwsRangeError); |
322 }); | 320 }); |
323 test("toUnsigned", () { | 321 test("toUnsigned", () { |
324 expect(Int32.ONE.toUnsigned(1), Int32.ONE); | 322 expect(Int32.ONE.toUnsigned(1), Int32.ONE); |
325 expect(Int32.ONE.toUnsigned(0), Int32.ZERO); | 323 expect(Int32.ONE.toUnsigned(0), Int32.ZERO); |
326 expect(Int32.MAX_VALUE.toUnsigned(32), Int32.MAX_VALUE); | 324 expect(Int32.MAX_VALUE.toUnsigned(32), Int32.MAX_VALUE); |
327 expect(Int32.MIN_VALUE.toUnsigned(32), Int32.MIN_VALUE); | 325 expect(Int32.MIN_VALUE.toUnsigned(32), Int32.MIN_VALUE); |
328 expect(Int32.MAX_VALUE.toUnsigned(31), Int32.MAX_VALUE); | 326 expect(Int32.MAX_VALUE.toUnsigned(31), Int32.MAX_VALUE); |
329 expect(Int32.MIN_VALUE.toUnsigned(31), Int32.ZERO); | 327 expect(Int32.MIN_VALUE.toUnsigned(31), Int32.ZERO); |
330 expect(() => Int32.ONE.toUnsigned(-1), throws); | 328 expect(() => Int32.ONE.toUnsigned(-1), throwsRangeError); |
331 expect(() => Int32.ONE.toUnsigned(33), throws); | 329 expect(() => Int32.ONE.toUnsigned(33), throwsRangeError); |
332 }); | 330 }); |
333 test("toDouble", () { | 331 test("toDouble", () { |
334 expect(new Int32(17).toDouble(), same(17.0)); | 332 expect(new Int32(17).toDouble(), same(17.0)); |
335 expect(new Int32(-17).toDouble(), same(-17.0)); | 333 expect(new Int32(-17).toDouble(), same(-17.0)); |
336 }); | 334 }); |
337 test("toInt", () { | 335 test("toInt", () { |
338 expect(new Int32(17).toInt(), 17); | 336 expect(new Int32(17).toInt(), 17); |
339 expect(new Int32(-17).toInt(), -17); | 337 expect(new Int32(-17).toInt(), -17); |
340 }); | 338 }); |
341 test("toInt32", () { | 339 test("toInt32", () { |
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420 expect(new Int32(-1).shiftRightUnsigned(8).toHexString(), "ffffff"); | 418 expect(new Int32(-1).shiftRightUnsigned(8).toHexString(), "ffffff"); |
421 }); | 419 }); |
422 }); | 420 }); |
423 | 421 |
424 group("toRadixString", () { | 422 group("toRadixString", () { |
425 test("returns base n string representation", () { | 423 test("returns base n string representation", () { |
426 expect(new Int32(123456789).toRadixString(5), "223101104124"); | 424 expect(new Int32(123456789).toRadixString(5), "223101104124"); |
427 }); | 425 }); |
428 }); | 426 }); |
429 } | 427 } |
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