neo-go/pkg/compiler/debug_test.go

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package compiler
import (
"testing"
"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
"github.com/nspcc-dev/neo-go/pkg/internal/testserdes"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestCodeGen_DebugInfo(t *testing.T) {
src := `package foo
func Main(op string) bool {
var s string
_ = s
res := methodInt(op)
_ = methodString()
_ = methodByteArray()
_ = methodArray()
_ = methodStruct()
return res == 42
}
func methodInt(a string) int {
if a == "get42" {
return 42
}
return 3
}
func methodConcat(a, b string, c string) string{
return a + b + c
}
func methodString() string { return "" }
func methodByteArray() []byte { return nil }
func methodArray() []bool { return nil }
func methodStruct() struct{} { return struct{}{} }
`
info, err := getBuildInfo(src)
require.NoError(t, err)
pkg := info.program.Package(info.initialPackage)
c := newCodegen(info, pkg)
require.NoError(t, c.compile(info, pkg))
buf := c.prog.Bytes()
d := c.emitDebugInfo()
require.NotNil(t, d)
t.Run("return types", func(t *testing.T) {
returnTypes := map[string]string{
"methodInt": "Integer",
"methodConcat": "String",
"methodString": "String", "methodByteArray": "ByteArray",
"methodArray": "Array", "methodStruct": "Struct",
"Main": "Boolean",
}
for i := range d.Methods {
name := d.Methods[i].Name.Name
assert.Equal(t, returnTypes[name], d.Methods[i].ReturnType)
}
})
t.Run("variables", func(t *testing.T) {
vars := map[string][]string{
"Main": {"s,String", "res,Integer"},
}
for i := range d.Methods {
v, ok := vars[d.Methods[i].Name.Name]
if ok {
require.Equal(t, v, d.Methods[i].Variables)
}
}
})
t.Run("param types", func(t *testing.T) {
paramTypes := map[string][]DebugParam{
"methodInt": {{
Name: "a",
Type: "String",
}},
"methodConcat": {
{
Name: "a",
Type: "String",
},
{
Name: "b",
Type: "String",
},
{
Name: "c",
Type: "String",
},
},
"Main": {{
Name: "op",
Type: "String",
}},
}
for i := range d.Methods {
v, ok := paramTypes[d.Methods[i].Name.Name]
if ok {
require.Equal(t, v, d.Methods[i].Parameters)
}
}
})
// basic check that last instruction of every method is indeed RET
for i := range d.Methods {
index := d.Methods[i].Range.End
require.True(t, int(index) < len(buf))
require.EqualValues(t, opcode.RET, buf[index])
}
t.Run("convert to ABI", func(t *testing.T) {
author := "Joe"
email := "Joe@ex.com"
version := "1.0"
title := "MyProj"
description := "Description"
actual := d.convertToABI(buf, &smartcontract.ContractDetails{
Author: author,
Email: email,
Version: version,
ProjectName: title,
Description: description,
HasStorage: true,
HasDynamicInvocation: false,
IsPayable: false,
ReturnType: smartcontract.BoolType,
Parameters: []smartcontract.ParamType{
smartcontract.StringType,
},
})
expected := ABI{
Hash: hash.Hash160(buf),
Metadata: Metadata{
Author: author,
Email: email,
Version: version,
Title: title,
Description: description,
HasStorage: true,
HasDynamicInvocation: false,
IsPayable: false,
},
EntryPoint: mainIdent,
Functions: []Method{
{
Name: mainIdent,
Parameters: []DebugParam{
{
Name: "op",
Type: "String",
},
},
ReturnType: "Boolean",
},
},
Events: []Event{},
}
assert.Equal(t, expected, actual)
})
}
func TestSequencePoints(t *testing.T) {
src := `package foo
func Main(op string) bool {
if op == "123" {
return true
}
return false
}`
info, err := getBuildInfo(src)
require.NoError(t, err)
pkg := info.program.Package(info.initialPackage)
c := newCodegen(info, pkg)
require.NoError(t, c.compile(info, pkg))
d := c.emitDebugInfo()
require.NotNil(t, d)
// Main func has 2 return on 4-th and 6-th lines.
ps := d.Methods[0].SeqPoints
require.Equal(t, 2, len(ps))
require.Equal(t, 4, ps[0].StartLine)
require.Equal(t, 6, ps[1].StartLine)
}
func TestDebugInfo_MarshalJSON(t *testing.T) {
d := &DebugInfo{
EntryPoint: "main",
Documents: []string{"/path/to/file"},
Methods: []MethodDebugInfo{
{
ID: "id1",
Name: DebugMethodName{
Namespace: "default",
Name: "method1",
},
Range: DebugRange{Start: 10, End: 20},
Parameters: []DebugParam{
{"param1", "Integer"},
{"ok", "Boolean"},
},
ReturnType: "ByteArray",
Variables: []string{},
SeqPoints: []DebugSeqPoint{
{
Opcode: 123,
Document: 1,
StartLine: 2,
StartCol: 3,
EndLine: 4,
EndCol: 5,
},
},
},
},
Events: []EventDebugInfo{},
}
testserdes.MarshalUnmarshalJSON(t, d, new(DebugInfo))
}