62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
package tests
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import (
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"math"
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"math/big"
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"path"
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"testing"
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"github.com/nspcc-dev/neo-go/pkg/neotest"
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"github.com/stretchr/testify/require"
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)
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const testdataPath = "./testdata"
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func newTestdataInvoker(t *testing.T) *neotest.ContractInvoker {
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e := newExecutor(t)
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ctr := neotest.CompileFile(t, e.CommitteeHash, testdataPath, path.Join(testdataPath, "config.yml"))
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e.DeployContract(t, ctr, nil)
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return e.CommitteeInvoker(ctr.Hash)
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}
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func TestEncodeU64(t *testing.T) {
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// Let's check boundary values for all bit sizes:
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var nums []uint64
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for i := 0; i < 64; i++ {
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if i != 0 {
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nums = append(nums, (1<<i)-1)
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}
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nums = append(nums, 1<<i)
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if i != 63 {
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nums = append(nums, (1<<i)+1)
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}
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}
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c := newTestdataInvoker(t)
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for _, n := range nums {
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v, err := c.TestInvoke(t, "encode", n)
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require.NoError(t, err)
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require.Equal(t, 1, v.Len())
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r := v.Pop().Bytes()
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require.Equal(t, 9, len(r), "got: %x", r)
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v, err = c.TestInvoke(t, "encodeDecode", n)
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require.NoError(t, err)
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require.Equal(t, 1, v.Len())
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require.Equal(t, n, v.Pop().BigInt().Uint64())
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}
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t.Run("bad cases should be handled", func(t *testing.T) {
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x := new(big.Int).SetUint64(math.MaxUint64)
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x.Add(x, big.NewInt(1))
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nums := []*big.Int{x, big.NewInt(-1), big.NewInt(-128)}
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for _, n := range nums {
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v, err := c.TestInvoke(t, "encodeDecode", n)
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require.NoError(t, err)
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require.Equal(t, 0, v.Pop().BigInt().Cmp(n))
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}
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})
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}
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