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Diffstat (limited to 'js/compatibility_tests/v3.0.0/binary/arith_test.js')
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1 files changed, 355 insertions, 0 deletions
diff --git a/js/compatibility_tests/v3.0.0/binary/arith_test.js b/js/compatibility_tests/v3.0.0/binary/arith_test.js new file mode 100644 index 00000000..89796bf7 --- /dev/null +++ b/js/compatibility_tests/v3.0.0/binary/arith_test.js @@ -0,0 +1,355 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// https://developers.google.com/protocol-buffers/ +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +/** + * @fileoverview Test cases for Int64-manipulation functions. + * + * Test suite is written using Jasmine -- see http://jasmine.github.io/ + * + * @author cfallin@google.com (Chris Fallin) + */ + +goog.require('goog.testing.asserts'); +goog.require('jspb.arith.Int64'); +goog.require('jspb.arith.UInt64'); + + +describe('binaryArithTest', function() { + /** + * Tests comparison operations. + */ + it('testCompare', function() { + var a = new jspb.arith.UInt64(1234, 5678); + var b = new jspb.arith.UInt64(1234, 5678); + assertEquals(a.cmp(b), 0); + assertEquals(b.cmp(a), 0); + b.lo -= 1; + assertEquals(a.cmp(b), 1); + assertEquals(b.cmp(a), -1); + b.lo += 2; + assertEquals(a.cmp(b), -1); + assertEquals(b.cmp(a), 1); + b.lo = a.lo; + b.hi = a.hi - 1; + assertEquals(a.cmp(b), 1); + assertEquals(b.cmp(a), -1); + + assertEquals(a.zero(), false); + assertEquals(a.msb(), false); + assertEquals(a.lsb(), false); + a.hi = 0; + a.lo = 0; + assertEquals(a.zero(), true); + a.hi = 0x80000000; + assertEquals(a.zero(), false); + assertEquals(a.msb(), true); + a.lo = 0x00000001; + assertEquals(a.lsb(), true); + }); + + + /** + * Tests shifts. + */ + it('testShifts', function() { + var a = new jspb.arith.UInt64(1, 0); + assertEquals(a.lo, 1); + assertEquals(a.hi, 0); + var orig = a; + a = a.leftShift(); + assertEquals(orig.lo, 1); // original unmodified. + assertEquals(orig.hi, 0); + assertEquals(a.lo, 2); + assertEquals(a.hi, 0); + a = a.leftShift(); + assertEquals(a.lo, 4); + assertEquals(a.hi, 0); + for (var i = 0; i < 29; i++) { + a = a.leftShift(); + } + assertEquals(a.lo, 0x80000000); + assertEquals(a.hi, 0); + a = a.leftShift(); + assertEquals(a.lo, 0); + assertEquals(a.hi, 1); + a = a.leftShift(); + assertEquals(a.lo, 0); + assertEquals(a.hi, 2); + a = a.rightShift(); + a = a.rightShift(); + assertEquals(a.lo, 0x80000000); + assertEquals(a.hi, 0); + a = a.rightShift(); + assertEquals(a.lo, 0x40000000); + assertEquals(a.hi, 0); + }); + + + /** + * Tests additions. + */ + it('testAdd', function() { + var a = new jspb.arith.UInt64(/* lo = */ 0x89abcdef, + /* hi = */ 0x01234567); + var b = new jspb.arith.UInt64(/* lo = */ 0xff52ab91, + /* hi = */ 0x92fa2123); + // Addition with carry. + var c = a.add(b); + assertEquals(a.lo, 0x89abcdef); // originals unmodified. + assertEquals(a.hi, 0x01234567); + assertEquals(b.lo, 0xff52ab91); + assertEquals(b.hi, 0x92fa2123); + assertEquals(c.lo, 0x88fe7980); + assertEquals(c.hi, 0x941d668b); + + // Simple addition without carry. + a.lo = 2; + a.hi = 0; + b.lo = 3; + b.hi = 0; + c = a.add(b); + assertEquals(c.lo, 5); + assertEquals(c.hi, 0); + }); + + + /** + * Test subtractions. + */ + it('testSub', function() { + var kLength = 10; + var hiValues = [0x1682ef32, + 0x583902f7, + 0xb62f5955, + 0x6ea99bbf, + 0x25a39c20, + 0x0700a08b, + 0x00f7304d, + 0x91a5b5af, + 0x89077fd2, + 0xe09e347c]; + var loValues = [0xe1538b18, + 0xbeacd556, + 0x74100758, + 0x96e3cb26, + 0x56c37c3f, + 0xe00b3f7d, + 0x859f25d7, + 0xc2ee614a, + 0xe1d21cd7, + 0x30aae6a4]; + for (var i = 0; i < kLength; i++) { + for (var j = 0; j < kLength; j++) { + var a = new jspb.arith.UInt64(loValues[i], hiValues[j]); + var b = new jspb.arith.UInt64(loValues[j], hiValues[i]); + var c = a.add(b).sub(b); + assertEquals(c.hi, a.hi); + assertEquals(c.lo, a.lo); + } + } + }); + + + /** + * Tests 32-by-32 multiplication. + */ + it('testMul32x32', function() { + var testData = [ + // a b low(a*b) high(a*b) + [0xc0abe2f8, 0x1607898a, 0x5de711b0, 0x109471b8], + [0x915eb3cb, 0x4fb66d0e, 0xbd0d441a, 0x2d43d0bc], + [0xfe4efe70, 0x80b48c37, 0xbcddea10, 0x7fdada0c], + [0xe222fd4a, 0xe43d524a, 0xd5e0eb64, 0xc99d549c], + [0xd171f469, 0xb94ebd01, 0x4be17969, 0x979bc4fa], + [0x829cc1df, 0xe2598b38, 0xf4157dc8, 0x737c12ad], + [0xf10c3767, 0x8382881e, 0x942b3612, 0x7bd428b8], + [0xb0f6dd24, 0x232597e1, 0x079c98a4, 0x184bbce7], + [0xfcdb05a7, 0x902f55bc, 0x636199a4, 0x8e69f412], + [0x0dd0bfa9, 0x916e27b1, 0x6e2542d9, 0x07d92e65] + ]; + + for (var i = 0; i < testData.length; i++) { + var a = testData[i][0] >>> 0; + var b = testData[i][1] >>> 0; + var cLow = testData[i][2] >>> 0; + var cHigh = testData[i][3] >>> 0; + var c = jspb.arith.UInt64.mul32x32(a, b); + assertEquals(c.lo, cLow); + assertEquals(c.hi, cHigh); + } + }); + + + /** + * Tests 64-by-32 multiplication. + */ + it('testMul', function() { + // 64x32 bits produces 96 bits of product. The multiplication function under + // test truncates the top 32 bits, so we compare against a 64-bit expected + // product. + var testData = [ + // low(a) high(a) low(a*b) high(a*b) + [0xec10955b, 0x360eb168, 0x4b7f3f5b, 0xbfcb7c59, 0x9517da5f], + [0x42b000fc, 0x9d101642, 0x6fa1ab72, 0x2584c438, 0x6a9e6d2b], + [0xf42d4fb4, 0xae366403, 0xa65a1000, 0x92434000, 0x1ff978df], + [0x17e2f56b, 0x25487693, 0xf13f98c7, 0x73794e2d, 0xa96b0c6a], + [0x492f241f, 0x76c0eb67, 0x7377ac44, 0xd4336c3c, 0xfc4b1ebe], + [0xd6b92321, 0xe184fa48, 0xd6e76904, 0x93141584, 0xcbf44da1], + [0x4bf007ea, 0x968c0a9e, 0xf5e4026a, 0x4fdb1ae4, 0x61b9fb7d], + [0x10a83be7, 0x2d685ba6, 0xc9e5fb7f, 0x2ad43499, 0x3742473d], + [0x2f261829, 0x1aca681a, 0x3d3494e3, 0x8213205b, 0x283719f8], + [0xe4f2ce21, 0x2e74b7bd, 0xd801b38b, 0xbc17feeb, 0xc6c44e0f] + ]; + + for (var i = 0; i < testData.length; i++) { + var a = new jspb.arith.UInt64(testData[i][0], testData[i][1]); + var prod = a.mul(testData[i][2]); + assertEquals(prod.lo, testData[i][3]); + assertEquals(prod.hi, testData[i][4]); + } + }); + + + /** + * Tests 64-div-by-32 division. + */ + it('testDiv', function() { + // Compute a/b, yielding quot = a/b and rem = a%b. + var testData = [ + // --- divisors in (0, 2^32-1) to test full divisor range + // low(a) high(a) b low(quot) high(quot) rem + [0x712443f1, 0xe85cefcc, 0xc1a7050b, 0x332c79ad, 0x00000001, 0x92ffa882], + [0x11912915, 0xb2699eb5, 0x30467cbe, 0xb21b4be4, 0x00000003, 0x283465dd], + [0x0d917982, 0x201f2a6e, 0x3f35bf03, 0x8217c8e4, 0x00000000, 0x153402d6], + [0xa072c108, 0x74020c96, 0xc60568fd, 0x95f9613e, 0x00000000, 0x3f4676c2], + [0xd845d5d8, 0xcdd235c4, 0x20426475, 0x6154e78b, 0x00000006, 0x202fb751], + [0xa4dbf71f, 0x9e90465e, 0xf08e022f, 0xa8be947f, 0x00000000, 0xbe43b5ce], + [0x3dbe627f, 0xa791f4b9, 0x28a5bd89, 0x1f5dfe93, 0x00000004, 0x02bf9ed4], + [0x5c1c53ee, 0xccf5102e, 0x198576e7, 0x07e3ae31, 0x00000008, 0x02ea8fb7], + [0xfef1e581, 0x04714067, 0xca6540c1, 0x059e73ec, 0x00000000, 0x31658095], + [0x1e2dd90c, 0x13dd6667, 0x8b2184c3, 0x248d1a42, 0x00000000, 0x4ca6d0c6], + // --- divisors in (0, 2^16-1) to test larger quotient high-words + // low(a) high(a) b low(quot) high(quot) rem + [0x86722b47, 0x2cd57c9a, 0x00003123, 0x2ae41b7a, 0x0000e995, 0x00000f99], + [0x1dd7884c, 0xf5e839bc, 0x00009eeb, 0x5c886242, 0x00018c21, 0x000099b6], + [0x5c53d625, 0x899fc7e5, 0x000087d7, 0xd625007a, 0x0001035c, 0x000019af], + [0x6932d932, 0x9d0a5488, 0x000051fb, 0x9d976143, 0x0001ea63, 0x00004981], + [0x4d18bb85, 0x0c92fb31, 0x00001d9f, 0x03265ab4, 0x00006cac, 0x000001b9], + [0xbe756768, 0xdea67ccb, 0x00008a03, 0x58add442, 0x00019cff, 0x000056a2], + [0xe2466f9a, 0x2521f114, 0x0000c350, 0xa0c0860d, 0x000030ab, 0x0000a48a], + [0xf00ddad1, 0xe2f5446a, 0x00002cfc, 0x762697a6, 0x00050b96, 0x00000b69], + [0xa879152a, 0x0a70e0a5, 0x00007cdf, 0xb44151b3, 0x00001567, 0x0000363d], + [0x7179a74c, 0x46083fff, 0x0000253c, 0x4d39ba6e, 0x0001e17f, 0x00000f84] + ]; + + for (var i = 0; i < testData.length; i++) { + var a = new jspb.arith.UInt64(testData[i][0], testData[i][1]); + var result = a.div(testData[i][2]); + var quotient = result[0]; + var remainder = result[1]; + assertEquals(quotient.lo, testData[i][3]); + assertEquals(quotient.hi, testData[i][4]); + assertEquals(remainder.lo, testData[i][5]); + } + }); + + + /** + * Tests .toString() and .fromString(). + */ + it('testStrings', function() { + var testData = [ + [0x5e84c935, 0xcae33d0e, '14619595947299359029'], + [0x62b3b8b8, 0x93480544, '10612738313170434232'], + [0x319bfb13, 0xc01c4172, '13843011313344445203'], + [0x5b8a65fb, 0xa5885b31, '11927883880638080507'], + [0x6bdb80f1, 0xb0d1b16b, '12741159895737008369'], + [0x4b82b442, 0x2e0d8c97, '3318463081876730946'], + [0x780d5208, 0x7d76752c, '9040542135845999112'], + [0x2e46800f, 0x0993778d, '690026616168284175'], + [0xf00a7e32, 0xcd8e3931, '14811839111111540274'], + [0x1baeccd6, 0x923048c4, '10533999535534820566'], + [0x03669d29, 0xbff3ab72, '13831587386756603177'], + [0x2526073e, 0x01affc81, '121593346566522686'], + [0xc24244e0, 0xd7f40d0e, '15561076969511732448'], + [0xc56a341e, 0xa68b66a7, '12000798502816461854'], + [0x8738d64d, 0xbfe78604, '13828168534871037517'], + [0x5baff03b, 0xd7572aea, '15516918227177304123'], + [0x4a843d8a, 0x864e132b, '9677693725920476554'], + [0x25b4e94d, 0x22b54dc6, '2500990681505655117'], + [0x6bbe664b, 0x55a5cc0e, '6171563226690381387'], + [0xee916c81, 0xb00aabb3, '12685140089732426881'] + ]; + + for (var i = 0; i < testData.length; i++) { + var a = new jspb.arith.UInt64(testData[i][0], testData[i][1]); + var roundtrip = jspb.arith.UInt64.fromString(a.toString()); + assertEquals(roundtrip.lo, a.lo); + assertEquals(roundtrip.hi, a.hi); + assertEquals(a.toString(), testData[i][2]); + } + }); + + + /** + * Tests signed Int64s. These are built on UInt64s, so we only need to test + * the explicit overrides: .toString() and .fromString(). + */ + it('testSignedInt64', function() { + var testStrings = [ + '-7847499644178593666', + '3771946501229139523', + '2872856549054995060', + '-5780049594274350904', + '3383785956695105201', + '2973055184857072610', + '-3879428459215627206', + '4589812431064156631', + '8484075557333689940', + '1075325817098092407', + '-4346697501012292314', + '2488620459718316637', + '6112655187423520672', + '-3655278273928612104', + '3439154019435803196', + '1004112478843763757', + '-6587790776614368413', + '664320065099714586', + '4760412909973292912', + '-7911903989602274672' + ]; + + for (var i = 0; i < testStrings.length; i++) { + var roundtrip = + jspb.arith.Int64.fromString(testStrings[i]).toString(); + assertEquals(roundtrip, testStrings[i]); + } + }); +}); |