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fix #4180: Long.prototype.toFloat64() overflow (#4182)

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This commit is contained in:
litianzhao
2017-02-21 03:20:56 +08:00
committed by Wouter van Oortmerssen
parent 6561c7a31f
commit ebcfbbadf0
2 changed files with 5 additions and 5 deletions
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8
tests/JavaScriptTest.js
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@@ -67,7 +67,7 @@ function main() {
// Tests mutation first. This will verify that we did not trample any other
// part of the byte buffer.
testMutation(fbb.dataBuffer());
testBuffer(fbb.dataBuffer());
test64bit();
@@ -156,7 +156,8 @@ function test64bit() {
var mon2 = MyGame.Example.Monster.endMonster(fbb);
MyGame.Example.Stat.startStat(fbb);
MyGame.Example.Stat.addVal(fbb, new flatbuffers.Long(0x12345678, 0x23456789));
// 2541551405100253985 = 0x87654321(low part) + 0x23456789 * 0x100000000(high part);
MyGame.Example.Stat.addVal(fbb, new flatbuffers.Long(0x87654321, 0x23456789)); // the low part is Uint32
var stat = MyGame.Example.Stat.endStat(fbb);
MyGame.Example.Monster.startMonster(fbb);
@@ -177,8 +178,7 @@ function test64bit() {
var stat = mon.testempty();
assert.strictEqual(stat != null, true);
assert.strictEqual(stat.val() != null, true);
assert.strictEqual(stat.val().low, 0x12345678);
assert.strictEqual(stat.val().high, 0x23456789);
assert.strictEqual(stat.val().toFloat64(), 2541551405100253985);
var mon2 = mon.enemy();
assert.strictEqual(mon2 != null, true);