mirror of
https://github.com/ethereum/go-ethereum.git
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dc619990f5
* doc: licensing of libevm extensions and modifications * chore: add license headers via linter * chore: `golangci-lint run --fix` * chore: `golangci-lint run --fix` * chore: fix `libevm/libevm.go` header * chore: `s/extensions/additions/` * chore: add missing headers
42 lines
1.4 KiB
Go
42 lines
1.4 KiB
Go
// Copyright 2024 the libevm authors.
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//
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// The libevm additions to go-ethereum are free software: you can redistribute
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// them and/or modify them under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation, either version 3 of the License,
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// or (at your option) any later version.
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//
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// The libevm additions are distributed in the hope that they will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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// General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see
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// <http://www.gnu.org/licenses/>.
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package vm_test
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import (
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"testing"
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"github.com/holiman/uint256"
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"github.com/stretchr/testify/require"
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"github.com/ethereum/go-ethereum/core/vm"
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)
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func TestMutableStack(t *testing.T) {
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s := &vm.Stack{}
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m := vm.MutableStack{Stack: s}
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push := func(u uint64) uint256.Int {
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u256 := uint256.NewInt(u)
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m.Push(u256)
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return *u256
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}
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require.Empty(t, s.Data(), "new stack")
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want := []uint256.Int{push(42), push(314159), push(142857)}
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require.Equalf(t, want, s.Data(), "after pushing %d values to empty stack", len(want))
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require.Equal(t, want[len(want)-1], m.Pop(), "popped value")
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require.Equal(t, want[:len(want)-1], s.Data(), "after popping a single value")
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}
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