mirror of
https://github.com/luxfi/node.git
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zeekay
7cf87b230b
The module already called itself github.com/luxfi/node while containing no node in Go: cmd/luxd was twenty-one lines that printed the size of a few types, and the Go column of the matrix measured a VM plugin. A repo that fetches the thing it claims to be has not replaced it, so the Go sources move in — 1515 files, the daemon and everything under it — and the build reaches outside this module for nothing. Rust and C++ sit beside it unchanged and are still measured against it by the differential. That is the point of one repo: the reference implementation and the two ports are the same checkout, so parity is a thing you can run rather than a thing you assert. Verified: builds, and the closure carries no lux-private — checked at build time rather than believed. The daemon starts twelve chains on a local network (P X C Q Z A B G K M F, plus D through its plugin) and reports healthy.
118 lines
2.6 KiB
Go
118 lines
2.6 KiB
Go
// Copyright (C) 2019-2025, Lux Industries Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package math
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import (
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"math"
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"testing"
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"github.com/stretchr/testify/require"
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)
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const maxUint64 uint64 = math.MaxUint64
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func TestMaxUint(t *testing.T) {
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require := require.New(t)
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require.Equal(uint(math.MaxUint), MaxUint[uint]())
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require.Equal(uint8(math.MaxUint8), MaxUint[uint8]())
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require.Equal(uint16(math.MaxUint16), MaxUint[uint16]())
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require.Equal(uint32(math.MaxUint32), MaxUint[uint32]())
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require.Equal(uint64(math.MaxUint64), MaxUint[uint64]())
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require.Equal(uintptr(math.MaxUint), MaxUint[uintptr]())
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}
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func TestAdd(t *testing.T) {
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require := require.New(t)
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sum, err := Add(0, maxUint64)
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require.NoError(err)
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require.Equal(maxUint64, sum)
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sum, err = Add(maxUint64, 0)
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require.NoError(err)
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require.Equal(maxUint64, sum)
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sum, err = Add(uint64(1<<62), uint64(1<<62))
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require.NoError(err)
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require.Equal(uint64(1<<63), sum)
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_, err = Add(1, maxUint64)
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require.ErrorIs(err, ErrOverflow)
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_, err = Add(maxUint64, 1)
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require.ErrorIs(err, ErrOverflow)
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_, err = Add(maxUint64, maxUint64)
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require.ErrorIs(err, ErrOverflow)
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}
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func TestSub(t *testing.T) {
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require := require.New(t)
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got, err := Sub(uint64(2), uint64(1))
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require.NoError(err)
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require.Equal(uint64(1), got)
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got, err = Sub(uint64(2), uint64(2))
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require.NoError(err)
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require.Zero(got)
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got, err = Sub(maxUint64, maxUint64)
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require.NoError(err)
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require.Zero(got)
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got, err = Sub(uint64(3), uint64(2))
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require.NoError(err)
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require.Equal(uint64(1), got)
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_, err = Sub(uint64(1), uint64(2))
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require.ErrorIs(err, ErrUnderflow)
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_, err = Sub(maxUint64-1, maxUint64)
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require.ErrorIs(err, ErrUnderflow)
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}
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func TestMul(t *testing.T) {
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require := require.New(t)
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got, err := Mul(0, maxUint64)
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require.NoError(err)
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require.Zero(got)
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got, err = Mul(maxUint64, 0)
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require.NoError(err)
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require.Zero(got)
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got, err = Mul(uint64(1), uint64(3))
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require.NoError(err)
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require.Equal(uint64(3), got)
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got, err = Mul(uint64(3), uint64(1))
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require.NoError(err)
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require.Equal(uint64(3), got)
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got, err = Mul(uint64(2), uint64(3))
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require.NoError(err)
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require.Equal(uint64(6), got)
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got, err = Mul(maxUint64, 0)
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require.NoError(err)
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require.Zero(got)
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_, err = Mul(maxUint64-1, 2)
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require.ErrorIs(err, ErrOverflow)
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}
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func TestAbsDiff(t *testing.T) {
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require := require.New(t)
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require.Equal(maxUint64, AbsDiff(0, maxUint64))
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require.Equal(maxUint64, AbsDiff(maxUint64, 0))
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require.Equal(uint64(2), AbsDiff(uint64(3), uint64(1)))
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require.Equal(uint64(2), AbsDiff(uint64(1), uint64(3)))
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require.Zero(AbsDiff(uint64(1), uint64(1)))
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require.Zero(AbsDiff(uint64(0), uint64(0)))
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}
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