mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-11-26 19:42:23 +00:00
Merge pull request #1943 from nspcc-dev/itoa-overload
Add Itoa/Atoi overloads, add string-related methods to Std contract
This commit is contained in:
Roman Khimov
GitHub
commit
c47fb6743e
4 changed files with 477 additions and 25 deletions
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@ -225,7 +225,15 @@ func TestNativeHelpersCompile(t *testing.T) {
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{"base58Encode", []string{"[]byte{1, 2, 3}"}},
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{"base58Decode", []string{"[]byte{1, 2, 3}"}},
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{"itoa", []string{"4", "10"}},
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{"itoa10", []string{"4"}},
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{"atoi", []string{`"4"`, "10"}},
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{"atoi10", []string{`"4"`}},
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{"memoryCompare", []string{"[]byte{1}", "[]byte{2}"}},
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{"memorySearch", []string{"[]byte{1}", "[]byte{2}"}},
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{"memorySearchIndex", []string{"[]byte{1}", "[]byte{2}", "3"}},
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{"memorySearchLastIndex", []string{"[]byte{1}", "[]byte{2}", "3"}},
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{"stringSplit", []string{`"a,b"`, `","`}},
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{"stringSplitNonEmpty", []string{`"a,b"`, `","`}},
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})
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}
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@ -239,10 +247,33 @@ func runNativeTestCases(t *testing.T, ctr interop.ContractMD, name string, testC
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})
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}
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func runNativeTestCase(t *testing.T, ctr interop.ContractMD, name, method string, params ...string) {
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md, ok := ctr.GetMethod(strings.TrimSuffix(method, "WithData"), len(params))
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require.True(t, ok)
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func getMethod(t *testing.T, ctr interop.ContractMD, name string, params []string) interop.MethodAndPrice {
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paramLen := len(params)
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switch {
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case name == "itoa10" || name == "atoi10":
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name = name[:4]
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case strings.HasPrefix(name, "memorySearch"):
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if strings.HasSuffix(name, "LastIndex") {
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paramLen += 1 // true should be appended inside of an interop
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}
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name = "memorySearch"
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case strings.HasPrefix(name, "stringSplit"):
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if strings.HasSuffix(name, "NonEmpty") {
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paramLen += 1 // true should be appended inside of an interop
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}
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name = "stringSplit"
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default:
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name = strings.TrimSuffix(name, "WithData")
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}
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md, ok := ctr.GetMethod(name, paramLen)
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require.True(t, ok)
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return md
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}
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func runNativeTestCase(t *testing.T, ctr interop.ContractMD, name, method string, params ...string) {
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md := getMethod(t, ctr, method, params)
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isVoid := md.MD.ReturnType == smartcontract.VoidType
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srcTmpl := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/native/%s"
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@ -1,6 +1,7 @@
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package native
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import (
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"bytes"
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"encoding/base64"
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"encoding/hex"
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"errors"
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@ -22,13 +23,20 @@ type Std struct {
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interop.ContractMD
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}
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const stdContractID = -2
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const (
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stdContractID = -2
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// stdMaxInputLength is the maximum input length for string-related methods.
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stdMaxInputLength = 1024
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)
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var (
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// ErrInvalidBase is returned when base is invalid.
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ErrInvalidBase = errors.New("invalid base")
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// ErrInvalidFormat is returned when string is not a number.
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ErrInvalidFormat = errors.New("invalid format")
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// ErrTooBigInput is returned when input exceeds size limit.
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ErrTooBigInput = errors.New("input is too big")
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)
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func newStd() *Std {
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@ -61,30 +69,80 @@ func newStd() *Std {
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md = newMethodAndPrice(s.itoa, 1<<12, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("itoa", smartcontract.StringType,
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manifest.NewParameter("value", smartcontract.IntegerType))
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md = newMethodAndPrice(s.itoa10, 1<<12, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("atoi", smartcontract.IntegerType,
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manifest.NewParameter("value", smartcontract.StringType),
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manifest.NewParameter("base", smartcontract.IntegerType))
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md = newMethodAndPrice(s.atoi, 1<<12, callflag.NoneFlag)
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md = newMethodAndPrice(s.atoi, 1<<6, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("atoi", smartcontract.IntegerType,
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manifest.NewParameter("value", smartcontract.StringType))
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md = newMethodAndPrice(s.atoi10, 1<<6, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("base64Encode", smartcontract.StringType,
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manifest.NewParameter("data", smartcontract.ByteArrayType))
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md = newMethodAndPrice(s.base64Encode, 1<<12, callflag.NoneFlag)
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md = newMethodAndPrice(s.base64Encode, 1<<5, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("base64Decode", smartcontract.ByteArrayType,
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manifest.NewParameter("s", smartcontract.StringType))
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md = newMethodAndPrice(s.base64Decode, 1<<12, callflag.NoneFlag)
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md = newMethodAndPrice(s.base64Decode, 1<<5, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("base58Encode", smartcontract.StringType,
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manifest.NewParameter("data", smartcontract.ByteArrayType))
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md = newMethodAndPrice(s.base58Encode, 1<<12, callflag.NoneFlag)
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md = newMethodAndPrice(s.base58Encode, 1<<13, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("base58Decode", smartcontract.ByteArrayType,
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manifest.NewParameter("s", smartcontract.StringType))
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md = newMethodAndPrice(s.base58Decode, 1<<12, callflag.NoneFlag)
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md = newMethodAndPrice(s.base58Decode, 1<<10, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("memoryCompare", smartcontract.IntegerType,
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manifest.NewParameter("str1", smartcontract.ByteArrayType),
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manifest.NewParameter("str2", smartcontract.ByteArrayType))
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md = newMethodAndPrice(s.memoryCompare, 1<<5, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("memorySearch", smartcontract.IntegerType,
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manifest.NewParameter("mem", smartcontract.ByteArrayType),
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manifest.NewParameter("value", smartcontract.ByteArrayType))
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md = newMethodAndPrice(s.memorySearch2, 1<<6, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("memorySearch", smartcontract.IntegerType,
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manifest.NewParameter("mem", smartcontract.ByteArrayType),
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manifest.NewParameter("value", smartcontract.ByteArrayType),
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manifest.NewParameter("start", smartcontract.IntegerType))
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md = newMethodAndPrice(s.memorySearch3, 1<<6, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("memorySearch", smartcontract.IntegerType,
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manifest.NewParameter("mem", smartcontract.ByteArrayType),
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manifest.NewParameter("value", smartcontract.ByteArrayType),
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manifest.NewParameter("start", smartcontract.IntegerType),
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manifest.NewParameter("backward", smartcontract.BoolType))
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md = newMethodAndPrice(s.memorySearch4, 1<<6, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("stringSplit", smartcontract.ArrayType,
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manifest.NewParameter("str", smartcontract.StringType),
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manifest.NewParameter("separator", smartcontract.StringType))
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md = newMethodAndPrice(s.stringSplit2, 1<<8, callflag.NoneFlag)
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s.AddMethod(md, desc)
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desc = newDescriptor("stringSplit", smartcontract.ArrayType,
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manifest.NewParameter("str", smartcontract.StringType),
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manifest.NewParameter("separator", smartcontract.StringType),
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manifest.NewParameter("removeEmptyEntries", smartcontract.BoolType))
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md = newMethodAndPrice(s.stringSplit3, 1<<8, callflag.NoneFlag)
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s.AddMethod(md, desc)
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return s
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@ -142,6 +200,11 @@ func (s *Std) jsonDeserialize(_ *interop.Context, args []stackitem.Item) stackit
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return item
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}
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func (s *Std) itoa10(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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num := toBigInt(args[0])
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return stackitem.NewByteArray([]byte(num.Text(10)))
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}
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func (s *Std) itoa(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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num := toBigInt(args[0])
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base := toBigInt(args[1])
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@ -170,8 +233,22 @@ func (s *Std) itoa(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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return stackitem.NewByteArray([]byte(str))
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}
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func (s *Std) atoi10(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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num := s.toLimitedString(args[0])
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res := s.atoi10Aux(num)
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return stackitem.NewBigInteger(res)
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}
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func (s *Std) atoi10Aux(num string) *big.Int {
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bi, ok := new(big.Int).SetString(num, 10)
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if !ok {
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panic(ErrInvalidFormat)
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}
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return bi
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}
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func (s *Std) atoi(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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num := toString(args[0])
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num := s.toLimitedString(args[0])
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base := toBigInt(args[1])
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if !base.IsInt64() {
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panic(ErrInvalidBase)
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@ -179,11 +256,7 @@ func (s *Std) atoi(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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var bi *big.Int
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switch b := base.Int64(); b {
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case 10:
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var ok bool
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bi, ok = new(big.Int).SetString(num, int(b))
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if !ok {
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panic(ErrInvalidFormat)
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}
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bi = s.atoi10Aux(num)
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case 16:
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changed := len(num)%2 != 0
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if changed {
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@ -213,17 +286,14 @@ func reverse(b []byte) {
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}
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func (s *Std) base64Encode(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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src, err := args[0].TryBytes()
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if err != nil {
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panic(err)
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}
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src := s.toLimitedBytes(args[0])
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result := base64.StdEncoding.EncodeToString(src)
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return stackitem.NewByteArray([]byte(result))
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}
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func (s *Std) base64Decode(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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src := toString(args[0])
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src := s.toLimitedString(args[0])
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result, err := base64.StdEncoding.DecodeString(src)
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if err != nil {
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panic(err)
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@ -233,17 +303,14 @@ func (s *Std) base64Decode(_ *interop.Context, args []stackitem.Item) stackitem.
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}
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func (s *Std) base58Encode(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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src, err := args[0].TryBytes()
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if err != nil {
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panic(err)
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}
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src := s.toLimitedBytes(args[0])
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result := base58.Encode(src)
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return stackitem.NewByteArray([]byte(result))
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}
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func (s *Std) base58Decode(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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src := toString(args[0])
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src := s.toLimitedString(args[0])
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result, err := base58.Decode(src)
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if err != nil {
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panic(err)
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@ -252,6 +319,85 @@ func (s *Std) base58Decode(_ *interop.Context, args []stackitem.Item) stackitem.
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return stackitem.NewByteArray(result)
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}
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func (s *Std) memoryCompare(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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s1 := s.toLimitedBytes(args[0])
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s2 := s.toLimitedBytes(args[1])
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return stackitem.NewBigInteger(big.NewInt(int64(bytes.Compare(s1, s2))))
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}
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func (s *Std) memorySearch2(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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mem := s.toLimitedBytes(args[0])
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val := s.toLimitedBytes(args[1])
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index := s.memorySearchAux(mem, val, 0, false)
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return stackitem.NewBigInteger(big.NewInt(int64(index)))
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}
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func (s *Std) memorySearch3(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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mem := s.toLimitedBytes(args[0])
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val := s.toLimitedBytes(args[1])
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start := toUint32(args[2])
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index := s.memorySearchAux(mem, val, int(start), false)
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return stackitem.NewBigInteger(big.NewInt(int64(index)))
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}
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func (s *Std) memorySearch4(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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mem := s.toLimitedBytes(args[0])
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val := s.toLimitedBytes(args[1])
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start := toUint32(args[2])
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backward, err := args[3].TryBool()
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if err != nil {
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panic(err)
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}
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index := s.memorySearchAux(mem, val, int(start), backward)
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return stackitem.NewBigInteger(big.NewInt(int64(index)))
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}
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func (s *Std) memorySearchAux(mem, val []byte, start int, backward bool) int {
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if backward {
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if start > len(mem) { // panic in case if cap(mem) > len(mem) for some reasons
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panic("invalid start index")
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}
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return bytes.LastIndex(mem[:start], val)
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}
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index := bytes.Index(mem[start:], val)
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if index < 0 {
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return -1
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}
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return index + start
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}
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func (s *Std) stringSplit2(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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str := s.toLimitedString(args[0])
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sep := toString(args[1])
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return stackitem.NewArray(s.stringSplitAux(str, sep, false))
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}
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func (s *Std) stringSplit3(_ *interop.Context, args []stackitem.Item) stackitem.Item {
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str := s.toLimitedString(args[0])
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sep := toString(args[1])
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removeEmpty, err := args[2].TryBool()
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if err != nil {
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panic(err)
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}
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return stackitem.NewArray(s.stringSplitAux(str, sep, removeEmpty))
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}
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func (s *Std) stringSplitAux(str, sep string, removeEmpty bool) []stackitem.Item {
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var result []stackitem.Item
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arr := strings.Split(str, sep)
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for i := range arr {
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if !removeEmpty || len(arr[i]) != 0 {
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result = append(result, stackitem.Make(arr[i]))
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}
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}
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return result
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}
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// Metadata implements Contract interface.
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func (s *Std) Metadata() *interop.ContractMD {
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return &s.ContractMD
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@ -271,3 +417,22 @@ func (s *Std) OnPersist(ic *interop.Context) error {
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func (s *Std) PostPersist(ic *interop.Context) error {
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return nil
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}
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func (s *Std) toLimitedBytes(item stackitem.Item) []byte {
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src, err := item.TryBytes()
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if err != nil {
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panic(err)
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}
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if len(src) > stdMaxInputLength {
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panic(ErrTooBigInput)
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}
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return src
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}
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func (s *Std) toLimitedString(item stackitem.Item) string {
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src := toString(item)
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if len(src) > stdMaxInputLength {
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panic(ErrTooBigInput)
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}
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return src
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}
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@ -5,6 +5,7 @@ import (
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"encoding/hex"
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"math"
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"math/big"
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"strings"
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"testing"
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"github.com/mr-tron/base58"
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@ -49,6 +50,18 @@ func TestStdLibItoaAtoi(t *testing.T) {
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actual = s.atoi(ic, []stackitem.Item{stackitem.Make(tc.result), stackitem.Make(tc.base)})
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})
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require.Equal(t, stackitem.Make(tc.num), actual)
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if tc.base.Int64() == 10 {
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require.NotPanics(t, func() {
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actual = s.itoa10(ic, []stackitem.Item{stackitem.Make(tc.num)})
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})
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require.Equal(t, stackitem.Make(tc.result), actual)
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require.NotPanics(t, func() {
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actual = s.atoi10(ic, []stackitem.Item{stackitem.Make(tc.result)})
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})
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require.Equal(t, stackitem.Make(tc.num), actual)
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}
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}
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t.Run("-1", func(t *testing.T) {
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@ -90,6 +103,7 @@ func TestStdLibItoaAtoi(t *testing.T) {
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{"1_000", big.NewInt(10), ErrInvalidFormat},
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{"FE", big.NewInt(10), ErrInvalidFormat},
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{"XD", big.NewInt(16), ErrInvalidFormat},
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{strings.Repeat("0", stdMaxInputLength+1), big.NewInt(10), ErrTooBigInput},
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}
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for _, tc := range testCases {
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@ -152,18 +166,28 @@ func TestStdLibEncodeDecode(t *testing.T) {
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ic := &interop.Context{VM: vm.New()}
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var actual stackitem.Item
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bigInputArgs := []stackitem.Item{stackitem.Make(strings.Repeat("6", stdMaxInputLength+1))}
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t.Run("Encode64", func(t *testing.T) {
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require.NotPanics(t, func() {
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actual = s.base64Encode(ic, []stackitem.Item{stackitem.Make(original)})
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})
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require.Equal(t, stackitem.Make(encoded64), actual)
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})
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t.Run("Encode64/error", func(t *testing.T) {
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require.PanicsWithError(t, ErrTooBigInput.Error(),
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||||
func() { s.base64Encode(ic, bigInputArgs) })
|
||||
})
|
||||
t.Run("Encode58", func(t *testing.T) {
|
||||
require.NotPanics(t, func() {
|
||||
actual = s.base58Encode(ic, []stackitem.Item{stackitem.Make(original)})
|
||||
})
|
||||
require.Equal(t, stackitem.Make(encoded58), actual)
|
||||
})
|
||||
t.Run("Encode58/error", func(t *testing.T) {
|
||||
require.PanicsWithError(t, ErrTooBigInput.Error(),
|
||||
func() { s.base58Encode(ic, bigInputArgs) })
|
||||
})
|
||||
t.Run("Decode64/positive", func(t *testing.T) {
|
||||
require.NotPanics(t, func() {
|
||||
actual = s.base64Decode(ic, []stackitem.Item{stackitem.Make(encoded64)})
|
||||
|
|
@ -177,6 +201,8 @@ func TestStdLibEncodeDecode(t *testing.T) {
|
|||
require.Panics(t, func() {
|
||||
_ = s.base64Decode(ic, []stackitem.Item{stackitem.NewInterop(nil)})
|
||||
})
|
||||
require.PanicsWithError(t, ErrTooBigInput.Error(),
|
||||
func() { s.base64Decode(ic, bigInputArgs) })
|
||||
})
|
||||
t.Run("Decode58/positive", func(t *testing.T) {
|
||||
require.NotPanics(t, func() {
|
||||
|
|
@ -191,6 +217,8 @@ func TestStdLibEncodeDecode(t *testing.T) {
|
|||
require.Panics(t, func() {
|
||||
_ = s.base58Decode(ic, []stackitem.Item{stackitem.NewInterop(nil)})
|
||||
})
|
||||
require.PanicsWithError(t, ErrTooBigInput.Error(),
|
||||
func() { s.base58Decode(ic, bigInputArgs) })
|
||||
})
|
||||
}
|
||||
|
||||
|
|
@ -326,3 +354,174 @@ func TestStdLibSerializeDeserialize(t *testing.T) {
|
|||
})
|
||||
})
|
||||
}
|
||||
|
||||
func TestMemoryCompare(t *testing.T) {
|
||||
s := newStd()
|
||||
ic := &interop.Context{VM: vm.New()}
|
||||
|
||||
check := func(t *testing.T, result int64, s1, s2 string) {
|
||||
actual := s.memoryCompare(ic, []stackitem.Item{stackitem.Make(s1), stackitem.Make(s2)})
|
||||
require.Equal(t, big.NewInt(result), actual.Value())
|
||||
}
|
||||
|
||||
check(t, -1, "a", "ab")
|
||||
check(t, 1, "ab", "a")
|
||||
check(t, 0, "ab", "ab")
|
||||
check(t, -1, "", "a")
|
||||
check(t, 0, "", "")
|
||||
|
||||
t.Run("C# compatibility", func(t *testing.T) {
|
||||
// These tests are taken from C# node.
|
||||
check(t, -1, "abc", "c")
|
||||
check(t, -1, "abc", "d")
|
||||
check(t, 0, "abc", "abc")
|
||||
check(t, -1, "abc", "abcd")
|
||||
})
|
||||
|
||||
t.Run("big arguments", func(t *testing.T) {
|
||||
s1 := stackitem.Make(strings.Repeat("x", stdMaxInputLength+1))
|
||||
s2 := stackitem.Make("xxx")
|
||||
|
||||
require.PanicsWithError(t, ErrTooBigInput.Error(),
|
||||
func() { s.memoryCompare(ic, []stackitem.Item{s1, s2}) })
|
||||
|
||||
require.PanicsWithError(t, ErrTooBigInput.Error(),
|
||||
func() { s.memoryCompare(ic, []stackitem.Item{s2, s1}) })
|
||||
})
|
||||
}
|
||||
|
||||
func TestMemorySearch(t *testing.T) {
|
||||
s := newStd()
|
||||
ic := &interop.Context{VM: vm.New()}
|
||||
|
||||
check := func(t *testing.T, result int64, args ...interface{}) {
|
||||
items := make([]stackitem.Item, len(args))
|
||||
for i := range args {
|
||||
items[i] = stackitem.Make(args[i])
|
||||
}
|
||||
|
||||
var actual stackitem.Item
|
||||
switch len(items) {
|
||||
case 2:
|
||||
actual = s.memorySearch2(ic, items)
|
||||
case 3:
|
||||
actual = s.memorySearch3(ic, items)
|
||||
case 4:
|
||||
actual = s.memorySearch4(ic, items)
|
||||
default:
|
||||
panic("invalid args length")
|
||||
}
|
||||
require.Equal(t, big.NewInt(result), actual.Value())
|
||||
}
|
||||
|
||||
t.Run("C# compatibility", func(t *testing.T) {
|
||||
// These tests are taken from C# node.
|
||||
check(t, 2, "abc", "c", 0)
|
||||
check(t, 2, "abc", "c", 1)
|
||||
check(t, 2, "abc", "c", 2)
|
||||
check(t, -1, "abc", "c", 3)
|
||||
check(t, -1, "abc", "d", 0)
|
||||
|
||||
check(t, 2, "abc", "c", 0, false)
|
||||
check(t, 2, "abc", "c", 1, false)
|
||||
check(t, 2, "abc", "c", 2, false)
|
||||
check(t, -1, "abc", "c", 3, false)
|
||||
check(t, -1, "abc", "d", 0, false)
|
||||
|
||||
check(t, -1, "abc", "c", 0, true)
|
||||
check(t, -1, "abc", "c", 1, true)
|
||||
check(t, -1, "abc", "c", 2, true)
|
||||
check(t, 2, "abc", "c", 3, true)
|
||||
check(t, -1, "abc", "d", 0, true)
|
||||
})
|
||||
|
||||
t.Run("boundary indices", func(t *testing.T) {
|
||||
arg := stackitem.Make("aaa")
|
||||
require.Panics(t, func() {
|
||||
s.memorySearch3(ic, []stackitem.Item{arg, arg, stackitem.Make(-1)})
|
||||
})
|
||||
require.Panics(t, func() {
|
||||
s.memorySearch3(ic, []stackitem.Item{arg, arg, stackitem.Make(4)})
|
||||
})
|
||||
t.Run("still in capacity", func(t *testing.T) {
|
||||
require.Panics(t, func() {
|
||||
arr := stackitem.NewByteArray(make([]byte, 5, 10))
|
||||
s.memorySearch3(ic, []stackitem.Item{arr, arg, stackitem.Make(7)})
|
||||
})
|
||||
require.Panics(t, func() {
|
||||
arr := stackitem.NewByteArray(make([]byte, 5, 10))
|
||||
s.memorySearch4(ic, []stackitem.Item{arr, arg,
|
||||
stackitem.Make(7), stackitem.Make(true)})
|
||||
})
|
||||
})
|
||||
})
|
||||
|
||||
t.Run("big arguments", func(t *testing.T) {
|
||||
s1 := stackitem.Make(strings.Repeat("x", stdMaxInputLength+1))
|
||||
s2 := stackitem.Make("xxx")
|
||||
start := stackitem.Make(1)
|
||||
b := stackitem.Make(true)
|
||||
|
||||
require.PanicsWithError(t, ErrTooBigInput.Error(),
|
||||
func() { s.memorySearch2(ic, []stackitem.Item{s1, s2}) })
|
||||
|
||||
require.PanicsWithError(t, ErrTooBigInput.Error(),
|
||||
func() { s.memorySearch2(ic, []stackitem.Item{s2, s1}) })
|
||||
|
||||
require.PanicsWithError(t, ErrTooBigInput.Error(),
|
||||
func() { s.memorySearch3(ic, []stackitem.Item{s1, s2, start}) })
|
||||
|
||||
require.PanicsWithError(t, ErrTooBigInput.Error(),
|
||||
func() { s.memorySearch3(ic, []stackitem.Item{s2, s1, start}) })
|
||||
|
||||
require.PanicsWithError(t, ErrTooBigInput.Error(),
|
||||
func() { s.memorySearch4(ic, []stackitem.Item{s1, s2, start, b}) })
|
||||
|
||||
require.PanicsWithError(t, ErrTooBigInput.Error(),
|
||||
func() { s.memorySearch4(ic, []stackitem.Item{s2, s1, start, b}) })
|
||||
})
|
||||
}
|
||||
|
||||
func TestStringSplit(t *testing.T) {
|
||||
s := newStd()
|
||||
ic := &interop.Context{VM: vm.New()}
|
||||
|
||||
check := func(t *testing.T, result []string, str, sep string, remove interface{}) {
|
||||
args := []stackitem.Item{stackitem.Make(str), stackitem.Make(sep)}
|
||||
var actual stackitem.Item
|
||||
if remove == nil {
|
||||
actual = s.stringSplit2(ic, args)
|
||||
} else {
|
||||
args = append(args, stackitem.NewBool(remove.(bool)))
|
||||
actual = s.stringSplit3(ic, args)
|
||||
}
|
||||
|
||||
arr, ok := actual.Value().([]stackitem.Item)
|
||||
require.True(t, ok)
|
||||
require.Equal(t, len(result), len(arr))
|
||||
for i := range result {
|
||||
require.Equal(t, stackitem.Make(result[i]), arr[i])
|
||||
}
|
||||
}
|
||||
|
||||
check(t, []string{"a", "b", "c"}, "abc", "", nil)
|
||||
check(t, []string{"a", "b", "c"}, "abc", "", true)
|
||||
check(t, []string{"a", "c", "", "", "d"}, "abcbbbd", "b", nil)
|
||||
check(t, []string{"a", "c", "", "", "d"}, "abcbbbd", "b", false)
|
||||
check(t, []string{"a", "c", "d"}, "abcbbbd", "b", true)
|
||||
check(t, []string{""}, "", "abc", nil)
|
||||
check(t, []string{}, "", "abc", true)
|
||||
|
||||
t.Run("C# compatibility", func(t *testing.T) {
|
||||
// These tests are taken from C# node.
|
||||
check(t, []string{"a", "b"}, "a,b", ",", nil)
|
||||
})
|
||||
|
||||
t.Run("big arguments", func(t *testing.T) {
|
||||
s1 := stackitem.Make(strings.Repeat("x", stdMaxInputLength+1))
|
||||
s2 := stackitem.Make("xxx")
|
||||
|
||||
require.PanicsWithError(t, ErrTooBigInput.Error(),
|
||||
func() { s.stringSplit2(ic, []stackitem.Item{s1, s2}) })
|
||||
})
|
||||
}
|
||||
|
|
|
|||
|
|
@ -93,9 +93,66 @@ func Itoa(num int, base int) string {
|
|||
num, base).(string)
|
||||
}
|
||||
|
||||
// Itoa10 converts num in a base 10 to string.
|
||||
// It uses `itoa` method of StdLib native contract.
|
||||
func Itoa10(num int) string {
|
||||
return contract.Call(interop.Hash160(Hash), "itoa", contract.NoneFlag,
|
||||
num).(string)
|
||||
}
|
||||
|
||||
// Atoi converts string to a number in a given base. Base should be either 10 or 16.
|
||||
// It uses `atoi` method of StdLib native contract.
|
||||
func Atoi(s string, base int) int {
|
||||
return contract.Call(interop.Hash160(Hash), "atoi", contract.NoneFlag,
|
||||
s, base).(int)
|
||||
}
|
||||
|
||||
// Atoi10 converts string to a number in a base 10.
|
||||
// It uses `atoi` method of StdLib native contract.
|
||||
func Atoi10(s string) int {
|
||||
return contract.Call(interop.Hash160(Hash), "atoi", contract.NoneFlag,
|
||||
s).(int)
|
||||
}
|
||||
|
||||
// MemoryCompare is similar to bytes.Compare:
|
||||
// The result will be 0 if a==b, -1 if a < b, and +1 if a > b.
|
||||
// It uses `memoryCompare` method of StdLib native contract.
|
||||
func MemoryCompare(s1, s2 []byte) int {
|
||||
return contract.Call(interop.Hash160(Hash), "memoryCompare", contract.NoneFlag,
|
||||
s1, s2).(int)
|
||||
}
|
||||
|
||||
// MemorySearch returns index of the first occurrence of val in mem.
|
||||
// If not found, -1 is returned. It uses `memorySearch` method of StdLib native contract.
|
||||
func MemorySearch(mem, pattern []byte) int {
|
||||
return contract.Call(interop.Hash160(Hash), "memorySearch", contract.NoneFlag,
|
||||
mem, pattern).(int)
|
||||
}
|
||||
|
||||
// MemorySearchIndex returns index of the first occurrence of val in mem starting from start.
|
||||
// If not found, -1 is returned. It uses `memorySearch` method of StdLib native contract.
|
||||
func MemorySearchIndex(mem, pattern []byte, start int) int {
|
||||
return contract.Call(interop.Hash160(Hash), "memorySearch", contract.NoneFlag,
|
||||
mem, pattern, start).(int)
|
||||
}
|
||||
|
||||
// MemorySearchLastIndex returns index of the last occurrence of val in mem ending before start.
|
||||
// If not found, -1 is returned. It uses `memorySearch` method of StdLib native contract.
|
||||
func MemorySearchLastIndex(mem, pattern []byte, start int) int {
|
||||
return contract.Call(interop.Hash160(Hash), "memorySearch", contract.NoneFlag,
|
||||
mem, pattern, start, true).(int)
|
||||
}
|
||||
|
||||
// StringSplit splits s by occurrences of sep.
|
||||
// It uses `stringSplit` method of StdLib native contract.
|
||||
func StringSplit(s, sep string) []string {
|
||||
return contract.Call(interop.Hash160(Hash), "stringSplit", contract.NoneFlag,
|
||||
s, sep).([]string)
|
||||
}
|
||||
|
||||
// StringSplitNonEmpty splits s by occurrences of sep and returns a list of non-empty items.
|
||||
// It uses `stringSplit` method of StdLib native contract.
|
||||
func StringSplitNonEmpty(s, sep string) []string {
|
||||
return contract.Call(interop.Hash160(Hash), "stringSplit", contract.NoneFlag,
|
||||
s, sep, true).([]string)
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue