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246 lines
9.6 KiB
246 lines
9.6 KiB
// Copyright 2006-2008 the V8 project authors. All rights reserved.
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#include <stdlib.h>
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#include "v8.h"
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#include "platform.h"
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#include "cctest.h"
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using namespace v8::internal;
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TEST(Hex) {
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CHECK_EQ(0.0, StringToDouble("0x0", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(0.0, StringToDouble("0X0", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(1.0, StringToDouble("0x1", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(16.0, StringToDouble("0x10", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(255.0, StringToDouble("0xff", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(175.0, StringToDouble("0xAF", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(0.0, StringToDouble("0x0", ALLOW_HEX));
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CHECK_EQ(0.0, StringToDouble("0X0", ALLOW_HEX));
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CHECK_EQ(1.0, StringToDouble("0x1", ALLOW_HEX));
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CHECK_EQ(16.0, StringToDouble("0x10", ALLOW_HEX));
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CHECK_EQ(255.0, StringToDouble("0xff", ALLOW_HEX));
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CHECK_EQ(175.0, StringToDouble("0xAF", ALLOW_HEX));
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}
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TEST(Octal) {
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CHECK_EQ(0.0, StringToDouble("0", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(0.0, StringToDouble("00", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(1.0, StringToDouble("01", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(7.0, StringToDouble("07", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(8.0, StringToDouble("010", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(63.0, StringToDouble("077", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(0.0, StringToDouble("0", ALLOW_HEX));
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CHECK_EQ(0.0, StringToDouble("00", ALLOW_HEX));
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CHECK_EQ(1.0, StringToDouble("01", ALLOW_HEX));
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CHECK_EQ(7.0, StringToDouble("07", ALLOW_HEX));
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CHECK_EQ(10.0, StringToDouble("010", ALLOW_HEX));
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CHECK_EQ(77.0, StringToDouble("077", ALLOW_HEX));
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const double x = 010000000000; // Power of 2, no rounding errors.
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CHECK_EQ(x * x * x * x * x, StringToDouble("01" "0000000000" "0000000000"
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"0000000000" "0000000000" "0000000000", ALLOW_OCTALS));
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}
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TEST(MalformedOctal) {
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CHECK_EQ(8.0, StringToDouble("08", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(81.0, StringToDouble("081", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(78.0, StringToDouble("078", ALLOW_HEX | ALLOW_OCTALS));
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CHECK(isnan(StringToDouble("07.7", ALLOW_HEX | ALLOW_OCTALS)));
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CHECK(isnan(StringToDouble("07.8", ALLOW_HEX | ALLOW_OCTALS)));
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CHECK(isnan(StringToDouble("07e8", ALLOW_HEX | ALLOW_OCTALS)));
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CHECK(isnan(StringToDouble("07e7", ALLOW_HEX | ALLOW_OCTALS)));
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CHECK_EQ(8.7, StringToDouble("08.7", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(8e7, StringToDouble("08e7", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(0.001, StringToDouble("0.001", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(0.713, StringToDouble("0.713", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(8.0, StringToDouble("08", ALLOW_HEX));
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CHECK_EQ(81.0, StringToDouble("081", ALLOW_HEX));
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CHECK_EQ(78.0, StringToDouble("078", ALLOW_HEX));
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CHECK_EQ(7.7, StringToDouble("07.7", ALLOW_HEX));
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CHECK_EQ(7.8, StringToDouble("07.8", ALLOW_HEX));
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CHECK_EQ(7e8, StringToDouble("07e8", ALLOW_HEX));
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CHECK_EQ(7e7, StringToDouble("07e7", ALLOW_HEX));
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CHECK_EQ(8.7, StringToDouble("08.7", ALLOW_HEX));
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CHECK_EQ(8e7, StringToDouble("08e7", ALLOW_HEX));
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CHECK_EQ(0.001, StringToDouble("0.001", ALLOW_HEX));
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CHECK_EQ(0.713, StringToDouble("0.713", ALLOW_HEX));
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}
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TEST(TrailingJunk) {
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CHECK_EQ(8.0, StringToDouble("8q", ALLOW_TRAILING_JUNK));
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CHECK_EQ(63.0, StringToDouble("077qqq", ALLOW_OCTALS | ALLOW_TRAILING_JUNK));
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CHECK_EQ(10.0, StringToDouble("10e", ALLOW_OCTALS | ALLOW_TRAILING_JUNK));
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CHECK_EQ(10.0, StringToDouble("10e-", ALLOW_OCTALS | ALLOW_TRAILING_JUNK));
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}
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TEST(NonStrDecimalLiteral) {
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CHECK(isnan(StringToDouble(" ", NO_FLAGS, OS::nan_value())));
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CHECK(isnan(StringToDouble("", NO_FLAGS, OS::nan_value())));
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CHECK(isnan(StringToDouble(" ", NO_FLAGS, OS::nan_value())));
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CHECK_EQ(0.0, StringToDouble("", NO_FLAGS));
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CHECK_EQ(0.0, StringToDouble(" ", NO_FLAGS));
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}
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TEST(IntegerStrLiteral) {
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CHECK_EQ(0.0, StringToDouble("0.0", NO_FLAGS));
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CHECK_EQ(0.0, StringToDouble("0", NO_FLAGS));
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CHECK_EQ(0.0, StringToDouble("00", NO_FLAGS));
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CHECK_EQ(0.0, StringToDouble("000", NO_FLAGS));
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CHECK_EQ(1.0, StringToDouble("1", NO_FLAGS));
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CHECK_EQ(-1.0, StringToDouble("-1", NO_FLAGS));
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CHECK_EQ(-1.0, StringToDouble(" - 1 ", NO_FLAGS));
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CHECK_EQ(1.0, StringToDouble(" + 1 ", NO_FLAGS));
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CHECK_EQ(0.0, StringToDouble("0e0", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(0.0, StringToDouble("0e1", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(0.0, StringToDouble("0e-1", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(0.0, StringToDouble("0e-100000", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(0.0, StringToDouble("0e+100000", ALLOW_HEX | ALLOW_OCTALS));
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CHECK_EQ(0.0, StringToDouble("0.", ALLOW_HEX | ALLOW_OCTALS));
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}
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TEST(LongNumberStr) {
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CHECK_EQ(1e10, StringToDouble("1" "0000000000", NO_FLAGS));
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CHECK_EQ(1e20, StringToDouble("1" "0000000000" "0000000000", NO_FLAGS));
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CHECK_EQ(1e60, StringToDouble("1" "0000000000" "0000000000" "0000000000"
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"0000000000" "0000000000" "0000000000", NO_FLAGS));
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CHECK_EQ(1e-2, StringToDouble("." "0" "1", NO_FLAGS));
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CHECK_EQ(1e-11, StringToDouble("." "0000000000" "1", NO_FLAGS));
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CHECK_EQ(1e-21, StringToDouble("." "0000000000" "0000000000" "1", NO_FLAGS));
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CHECK_EQ(1e-61, StringToDouble("." "0000000000" "0000000000" "0000000000"
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"0000000000" "0000000000" "0000000000" "1", NO_FLAGS));
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// x = 24414062505131248.0 and y = 24414062505131252.0 are representable in
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// double. Check chat z = (x + y) / 2 is rounded to x...
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CHECK_EQ(24414062505131248.0,
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StringToDouble("24414062505131250.0", NO_FLAGS));
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// ... and z = (x + y) / 2 + delta is rounded to y.
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CHECK_EQ(24414062505131252.0,
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StringToDouble("24414062505131250.000000001", NO_FLAGS));
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}
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TEST(MaximumSignificantDigits) {
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char num[] =
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"4.4501477170144020250819966727949918635852426585926051135169509"
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"122872622312493126406953054127118942431783801370080830523154578"
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"251545303238277269592368457430440993619708911874715081505094180"
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"604803751173783204118519353387964161152051487413083163272520124"
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"606023105869053620631175265621765214646643181420505164043632222"
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"668006474326056011713528291579642227455489682133472873831754840"
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"341397809846934151055619529382191981473003234105366170879223151"
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"087335413188049110555339027884856781219017754500629806224571029"
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"581637117459456877330110324211689177656713705497387108207822477"
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"584250967061891687062782163335299376138075114200886249979505279"
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"101870966346394401564490729731565935244123171539810221213221201"
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"847003580761626016356864581135848683152156368691976240370422601"
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"6998291015625000000000000000000000000000000000e-308";
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CHECK_EQ(4.4501477170144017780491e-308, StringToDouble(num, NO_FLAGS));
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// Changes the result of strtod (at least in glibc implementation).
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num[sizeof(num) - 8] = '1';
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CHECK_EQ(4.4501477170144022721148e-308, StringToDouble(num, NO_FLAGS));
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}
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TEST(MinimumExponent) {
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// Same test but with different point-position.
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char num[] =
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"445014771701440202508199667279499186358524265859260511351695091"
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"228726223124931264069530541271189424317838013700808305231545782"
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"515453032382772695923684574304409936197089118747150815050941806"
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"048037511737832041185193533879641611520514874130831632725201246"
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"060231058690536206311752656217652146466431814205051640436322226"
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"680064743260560117135282915796422274554896821334728738317548403"
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"413978098469341510556195293821919814730032341053661708792231510"
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"873354131880491105553390278848567812190177545006298062245710295"
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"816371174594568773301103242116891776567137054973871082078224775"
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"842509670618916870627821633352993761380751142008862499795052791"
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"018709663463944015644907297315659352441231715398102212132212018"
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"470035807616260163568645811358486831521563686919762403704226016"
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"998291015625000000000000000000000000000000000e-1108";
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CHECK_EQ(4.4501477170144017780491e-308, StringToDouble(num, NO_FLAGS));
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// Changes the result of strtod (at least in glibc implementation).
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num[sizeof(num) - 8] = '1';
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CHECK_EQ(4.4501477170144022721148e-308, StringToDouble(num, NO_FLAGS));
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}
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TEST(MaximumExponent) {
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char num[] = "0.16e309";
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CHECK_EQ(1.59999999999999997765e+308, StringToDouble(num, NO_FLAGS));
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}
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TEST(ExponentNumberStr) {
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CHECK_EQ(1e1, StringToDouble("1e1", NO_FLAGS));
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CHECK_EQ(1e1, StringToDouble("1e+1", NO_FLAGS));
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CHECK_EQ(1e-1, StringToDouble("1e-1", NO_FLAGS));
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CHECK_EQ(1e100, StringToDouble("1e+100", NO_FLAGS));
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CHECK_EQ(1e-100, StringToDouble("1e-100", NO_FLAGS));
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CHECK_EQ(1e-106, StringToDouble(".000001e-100", NO_FLAGS));
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}
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class OneBit1: public BitField<uint32_t, 0, 1> {};
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class OneBit2: public BitField<uint32_t, 7, 1> {};
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class EightBit1: public BitField<uint32_t, 0, 8> {};
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class EightBit2: public BitField<uint32_t, 13, 8> {};
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TEST(BitField) {
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uint32_t x;
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// One bit bit field can hold values 0 and 1.
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CHECK(!OneBit1::is_valid(static_cast<uint32_t>(-1)));
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CHECK(!OneBit2::is_valid(static_cast<uint32_t>(-1)));
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for (int i = 0; i < 2; i++) {
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CHECK(OneBit1::is_valid(i));
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x = OneBit1::encode(i);
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CHECK_EQ(i, OneBit1::decode(x));
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CHECK(OneBit2::is_valid(i));
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x = OneBit2::encode(i);
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CHECK_EQ(i, OneBit2::decode(x));
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}
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CHECK(!OneBit1::is_valid(2));
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CHECK(!OneBit2::is_valid(2));
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// Eight bit bit field can hold values from 0 tp 255.
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CHECK(!EightBit1::is_valid(static_cast<uint32_t>(-1)));
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CHECK(!EightBit2::is_valid(static_cast<uint32_t>(-1)));
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for (int i = 0; i < 256; i++) {
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CHECK(EightBit1::is_valid(i));
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x = EightBit1::encode(i);
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CHECK_EQ(i, EightBit1::decode(x));
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CHECK(EightBit2::is_valid(i));
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x = EightBit2::encode(i);
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CHECK_EQ(i, EightBit2::decode(x));
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}
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CHECK(!EightBit1::is_valid(256));
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CHECK(!EightBit2::is_valid(256));
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}
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