ARCHIVE/rippled
1
0
Fork 0
mirror of https://github.com/XRPLF/rippled.git synced 2026-04-29 15:37:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

Step 2 cont. Refactor the to_string(Number) test

Browse Source
This commit is contained in:
Ed Hennis
2025-11-14 12:40:54 -05:00
parent 4cf22b50de
commit 6f1fe5047b
1 changed files with 53 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

79
src/test/basics/Number_test.cpp
View File

@@ -100,44 +100,71 @@ public:
auto const scale = Number::getMantissaScale();
BEAST_EXPECT(to_string(Number(-2, 0)) == "-2");
BEAST_EXPECT(to_string(Number(0, 0)) == "0");
BEAST_EXPECT(to_string(Number(2, 0)) == "2");
BEAST_EXPECT(to_string(Number(25, -3)) == "0.025");
BEAST_EXPECT(to_string(Number(-25, -3)) == "-0.025");
BEAST_EXPECT(to_string(Number(25, 1)) == "250");
BEAST_EXPECT(to_string(Number(-25, 1)) == "-250");
auto test = [this](Number const& n, std::string const& expected) {
auto const result = to_string(n);
std::stringstream ss;
ss << "to_string(" << result << "). Expected: " << expected;
log << ss.str() << std::endl;
BEAST_EXPECTS(result == expected, ss.str());
};
test(Number(-2, 0), "-2");
test(Number(0, 0), "0");
test(Number(2, 0), "2");
test(Number(25, -3), "0.025");
test(Number(-25, -3), "-0.025");
test(Number(25, 1), "250");
test(Number(-25, 1), "-250");
switch (scale)
{
case Number::small:
BEAST_EXPECT(to_string(Number(2, 20)) == "2000000000000000e5");
BEAST_EXPECT(
to_string(Number(-2, -20)) == "-2000000000000000e-35");
test(Number(2, 20), "2000000000000000e5");
test(Number(-2, -20), "-2000000000000000e-35");
// Test the edges
// ((exponent < -(25)) || (exponent > -(5)))))
BEAST_EXPECT(to_string(Number(2, -10)) == "0.0000000002");
BEAST_EXPECT(
to_string(Number(2, -11)) == "2000000000000000e-26");
test(Number(2, -10), "0.0000000002");
test(Number(2, -11), "2000000000000000e-26");
BEAST_EXPECT(to_string(Number(-2, 10)) == "-20000000000");
BEAST_EXPECT(
to_string(Number(-2, 11)) == "-2000000000000000e-4");
test(Number(-2, 10), "-20000000000");
test(Number(-2, 11), "-2000000000000000e-4");
test(Number::min(), "1000000000000000e-32768");
test(Number::max(), "9999999999999999e32768");
test(Number::lowest(), "-9999999999999999e32768");
{
NumberRoundModeGuard mg(Number::downward);
test(
Number{
numberuint128(9'999'999'999'999'999) * 1000 + 999,
-3},
"9999999999999999");
}
break;
case Number::large:
BEAST_EXPECT(
to_string(Number(2, 20)) == "2000000000000000000e2");
BEAST_EXPECT(
to_string(Number(-2, -20)) == "-2000000000000000000e-38");
test(Number(2, 20), "2000000000000000000e2");
test(Number(-2, -20), "-2000000000000000000e-38");
// Test the edges
// ((exponent < -(28)) || (exponent > -(8)))))
BEAST_EXPECT(to_string(Number(2, -10)) == "0.0000000002");
BEAST_EXPECT(
to_string(Number(2, -11)) == "2000000000000000000e-29");
test(Number(2, -10), "0.0000000002");
test(Number(2, -11), "2000000000000000000e-29");
BEAST_EXPECT(to_string(Number(-2, 10)) == "-20000000000");
BEAST_EXPECT(
to_string(Number(-2, 11)) == "-2000000000000000000e-7");
test(Number(-2, 10), "-20000000000");
test(Number(-2, 11), "-2000000000000000000e-7");
test(Number::min(), "1000000000000000000e-32768");
test(Number::max(), "9999999999999999999e32768");
test(Number::lowest(), "-9999999999999999999e32768");
{
NumberRoundModeGuard mg(Number::downward);
test(
Number{
numberuint128(9'999'999'999'999'999) * 1000 + 999,
0},
"9999999999999999999");
}
break;
break;
default:
BEAST_EXPECT(false);