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unwrap: provide ArrayOfUint160

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It's a popular type as well.
This commit is contained in:
Roman Khimov 2022-08-19 10:36:44 +03:00
parent 8cd4948e06
commit d0702c2cf9
2 changed files with 39 additions and 0 deletions
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22
pkg/rpcclient/unwrap/unwrap.go
View file

@ -195,6 +195,28 @@ func ArrayOfBytes(r *result.Invoke, err error) ([][]byte, error) {
return res, nil
}
// ArrayOfUint160 checks the result for correct state (HALT) and then extracts a
// slice of util.Uint160 from the returned stack item.
func ArrayOfUint160(r *result.Invoke, err error) ([]util.Uint160, error) {
a, err := Array(r, err)
if err != nil {
return nil, err
}
res := make([]util.Uint160, len(a))
for i := range a {
b, err := a[i].TryBytes()
if err != nil {
return nil, fmt.Errorf("element %d is not a byte string: %w", i, err)
}
u, err := util.Uint160DecodeBytesBE(b)
if err != nil {
return nil, fmt.Errorf("element %d is not a uint160: %w", i, err)
}
res[i] = u
}
return res, nil
}
// ArrayOfPublicKeys checks the result for correct state (HALT) and then
// extracts a slice of public keys from the returned stack item.
func ArrayOfPublicKeys(r *result.Invoke, err error) (keys.PublicKeys, error) {

17
pkg/rpcclient/unwrap/unwrap_test.go
View file

@ -231,6 +231,23 @@ func TestArrayOfBytes(t *testing.T) {
require.Equal(t, []byte("some"), a[0])
}
func TestArrayOfUint160(t *testing.T) {
_, err := ArrayOfUint160(&result.Invoke{State: "HALT", Stack: []stackitem.Item{stackitem.Make(42)}}, nil)
require.Error(t, err)
_, err = ArrayOfUint160(&result.Invoke{State: "HALT", Stack: []stackitem.Item{stackitem.Make([]stackitem.Item{stackitem.Make([]stackitem.Item{})})}}, nil)
require.Error(t, err)
_, err = ArrayOfUint160(&result.Invoke{State: "HALT", Stack: []stackitem.Item{stackitem.Make([]stackitem.Item{stackitem.Make([]byte("some"))})}}, nil)
require.Error(t, err)
u160 := util.Uint160{1, 2, 3}
uints, err := ArrayOfUint160(&result.Invoke{State: "HALT", Stack: []stackitem.Item{stackitem.Make([]stackitem.Item{stackitem.Make(u160.BytesBE())})}}, nil)
require.NoError(t, err)
require.Equal(t, 1, len(uints))
require.Equal(t, u160, uints[0])
}
func TestArrayOfPublicKeys(t *testing.T) {
_, err := ArrayOfPublicKeys(&result.Invoke{State: "HALT", Stack: []stackitem.Item{stackitem.Make(42)}}, nil)
require.Error(t, err)