neo-go/pkg/compiler/for_test.go
Evgenii Stratonikov 3831aec53f vm: make NewBigInteger accept *big.Int
It creates big.Int internally anyway, so this is the most flexible way.
2020-04-16 15:54:58 +03:00

773 lines
11 KiB
Go

package compiler_test
import (
"fmt"
"math/big"
"strings"
"testing"
"github.com/nspcc-dev/neo-go/pkg/compiler"
"github.com/nspcc-dev/neo-go/pkg/vm"
"github.com/stretchr/testify/require"
)
func TestEntryPointWithMethod(t *testing.T) {
src := `
package foo
func Main(op string) int {
if op == "a" {
return 1
}
return 0
}
`
evalWithArgs(t, src, []byte("a"), nil, big.NewInt(1))
}
func TestEntryPointWithArgs(t *testing.T) {
src := `
package foo
func Main(args []interface{}) int {
return 2 + args[1].(int)
}
`
args := []vm.StackItem{vm.NewBigIntegerItem(big.NewInt(0)), vm.NewBigIntegerItem(big.NewInt(1))}
evalWithArgs(t, src, nil, args, big.NewInt(3))
}
func TestEntryPointWithMethodAndArgs(t *testing.T) {
src := `
package foo
func Main(method string, args []interface{}) int {
if method == "foobar" {
return 2 + args[1].(int)
}
return 0
}
`
args := []vm.StackItem{vm.NewBigIntegerItem(big.NewInt(0)), vm.NewBigIntegerItem(big.NewInt(1))}
evalWithArgs(t, src, []byte("foobar"), args, big.NewInt(3))
}
func TestArrayFieldInStruct(t *testing.T) {
src := `
package foo
type Bar struct {
arr []int
}
func Main() int {
b := Bar{
arr: []int{0, 1, 2},
}
x := b.arr[2]
return x + 2
}
`
eval(t, src, big.NewInt(4))
}
func TestArrayItemGetIndexBinaryExpr(t *testing.T) {
src := `
package foo
func Main() int {
x := 1
y := []int{0, 1, 2}
return y[x + 1]
}
`
eval(t, src, big.NewInt(2))
}
func TestArrayItemGetIndexIdent(t *testing.T) {
src := `
package foo
func Main() int {
x := 1
y := []int{0, 1, 2}
return y[x]
}
`
eval(t, src, big.NewInt(1))
}
func TestArrayItemBinExpr(t *testing.T) {
src := `
package foo
func Main() int {
x := []int{0, 1, 2}
return x[1] + 10
}
`
eval(t, src, big.NewInt(11))
}
func TestArrayItemReturn(t *testing.T) {
src := `
package foo
func Main() int {
arr := []int{0, 1, 2}
return arr[1]
}
`
eval(t, src, big.NewInt(1))
}
func TestArrayItemAssign(t *testing.T) {
src := `
package foo
func Main() int {
arr := []int{1, 2, 3}
y := arr[0]
return y
}
`
eval(t, src, big.NewInt(1))
}
func TestStringArray(t *testing.T) {
src := `
package foo
func Main() []string {
x := []string{"foo", "bar", "foobar"}
return x
}
`
eval(t, src, []vm.StackItem{
vm.NewByteArrayItem([]byte("foo")),
vm.NewByteArrayItem([]byte("bar")),
vm.NewByteArrayItem([]byte("foobar")),
})
}
func TestIntArray(t *testing.T) {
src := `
package foo
func Main() []int {
arr := []int{1, 2, 3}
return arr
}
`
eval(t, src, []vm.StackItem{
vm.NewBigIntegerItem(big.NewInt(1)),
vm.NewBigIntegerItem(big.NewInt(2)),
vm.NewBigIntegerItem(big.NewInt(3)),
})
}
func TestArrayLen(t *testing.T) {
src := `
package foo
func Main() int {
arr := []int{0, 1, 2}
return len(arr)
}
`
eval(t, src, big.NewInt(3))
}
func TestStringLen(t *testing.T) {
src := `
package foo
func Main() int {
str := "this is medium sized string"
return len(str)
}
`
eval(t, src, big.NewInt(27))
}
func TestByteArrayLen(t *testing.T) {
src := `
package foo
func Main() int {
b := []byte{0x00, 0x01, 0x2}
return len(b)
}
`
eval(t, src, big.NewInt(3))
}
func TestSimpleString(t *testing.T) {
src := `
package foo
func Main() string {
x := "NEO"
return x
}
`
eval(t, src, vm.NewByteArrayItem([]byte("NEO")).Value())
}
func TestBoolAssign(t *testing.T) {
src := `
package foo
func Main() bool {
x := true
return x
}
`
eval(t, src, big.NewInt(1))
}
func TestBoolCompare(t *testing.T) {
src := `
package foo
func Main() int {
x := true
if x {
return 10
}
return 0
}
`
eval(t, src, big.NewInt(10))
}
func TestBoolCompareVerbose(t *testing.T) {
src := `
package foo
func Main() int {
x := true
if x == true {
return 10
}
return 0
}
`
eval(t, src, big.NewInt(10))
}
func TestUnaryExpr(t *testing.T) {
src := `
package foo
func Main() bool {
x := false
return !x
}
`
eval(t, src, true)
}
func TestIfUnaryInvertPass(t *testing.T) {
src := `
package foo
func Main() int {
x := false
if !x {
return 10
}
return 0
}
`
eval(t, src, big.NewInt(10))
}
func TestIfUnaryInvert(t *testing.T) {
src := `
package foo
func Main() int {
x := true
if !x {
return 10
}
return 0
}
`
eval(t, src, []byte{})
}
func TestAppendByte(t *testing.T) {
src := `
package foo
func Main() []byte {
arr := []byte{0x00, 0x01, 0x02}
arr = append(arr, 0x03)
arr = append(arr, 0x04)
arr = append(arr, 0x05)
arr = append(arr, 0x06)
return arr
}
`
eval(t, src, []uint8{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06})
}
func TestAppendByteToEmpty(t *testing.T) {
src := `
package foo
func Main() []byte {
out := []byte{}
out = append(out, 1)
out = append(out, 2)
return out
}`
eval(t, src, []byte{1, 2})
}
func TestAppendString(t *testing.T) {
src := `
package foo
func Main() string {
arr := []string{"a", "b", "c"}
arr = append(arr, "d")
return arr[3]
}
`
eval(t, src, vm.NewByteArrayItem([]byte("d")).Value())
}
func TestAppendInt(t *testing.T) {
src := `
package foo
func Main() int {
arr := []int{0, 1, 2}
arr = append(arr, 3)
return arr[3]
}
`
eval(t, src, big.NewInt(3))
}
func TestClassicForLoop(t *testing.T) {
src := `
package foo
func Main() int {
x := 0
for i := 0; i < 10; i++ {
x = i
}
return x
}
`
eval(t, src, big.NewInt(9))
}
func TestInc(t *testing.T) {
src := `
package foo
func Main() int {
x := 0
x++
return x
}
`
eval(t, src, big.NewInt(1))
}
func TestDec(t *testing.T) {
src := `
package foo
func Main() int {
x := 2
x--
return x
}
`
eval(t, src, big.NewInt(1))
}
func TestForLoopEmpty(t *testing.T) {
src := `
package foo
func Main() int {
x := 0
for {
x++
if x == 2 {
break
}
}
return x
}
`
eval(t, src, big.NewInt(2))
}
func TestForLoopBigIter(t *testing.T) {
src := `
package foo
func Main() int {
x := 0
for i := 0; i < 100000; i++ {
x = i
}
return x
}
`
eval(t, src, big.NewInt(99999))
}
func TestForLoopNoInit(t *testing.T) {
src := `
package foo
func Main() int {
i := 0
for ; i < 10; i++ {
}
return i
}
`
eval(t, src, big.NewInt(10))
}
func TestForLoopNoPost(t *testing.T) {
src := `
package foo
func Main() int {
i := 0
for i < 10 {
i++
}
return i
}
`
eval(t, src, big.NewInt(10))
}
func TestForLoopRange(t *testing.T) {
src := `
package foo
func Main() int {
sum := 0
arr := []int{1, 2, 3}
for i := range arr {
sum += arr[i]
}
return sum
}`
eval(t, src, big.NewInt(6))
}
func TestForLoopRangeGlobalIndex(t *testing.T) {
src := `
package foo
func Main() int {
sum := 0
i := 0
arr := []int{1, 2, 3}
for i = range arr {
sum += arr[i]
}
return sum + i
}`
eval(t, src, big.NewInt(8))
}
func TestForLoopRangeChangeVariable(t *testing.T) {
src := `
package foo
func Main() int {
sum := 0
arr := []int{1, 2, 3}
for i := range arr {
sum += arr[i]
i++
sum += i
}
return sum
}`
eval(t, src, big.NewInt(12))
}
func TestForLoopBreak(t *testing.T) {
src := `
package foo
func Main() int {
var i int
for i < 10 {
i++
if i == 5 {
break
}
}
return i
}`
eval(t, src, big.NewInt(5))
}
func TestForLoopBreakLabel(t *testing.T) {
src := `
package foo
func Main() int {
var i int
loop:
for i < 10 {
i++
if i == 5 {
break loop
}
}
return i
}`
eval(t, src, big.NewInt(5))
}
func TestForLoopNestedBreak(t *testing.T) {
src := `
package foo
func Main() int {
var i int
for i < 10 {
i++
for j := 0; j < 2; j++ {
i++
if i == 5 {
break
}
}
}
return i
}`
eval(t, src, big.NewInt(11))
}
func TestForLoopNestedBreakLabel(t *testing.T) {
src := `
package foo
func Main() int {
var i int
loop:
for i < 10 {
i++
for j := 0; j < 2; j++ {
if i == 5 {
break loop
}
i++
}
}
return i
}`
eval(t, src, big.NewInt(5))
}
func TestForLoopContinue(t *testing.T) {
src := `
package foo
func Main() int {
var i, j int
for i < 10 {
i++
if i >= 5 {
continue
}
j++
}
return j
}`
eval(t, src, big.NewInt(4))
}
func TestForLoopContinueLabel(t *testing.T) {
src := `
package foo
func Main() int {
var i, j int
loop:
for i < 10 {
i++
if i >= 5 {
continue loop
}
j++
}
return j
}`
eval(t, src, big.NewInt(4))
}
func TestForLoopNestedContinue(t *testing.T) {
src := `
package foo
func Main() int {
var i, k int
for i < 10 {
i++
for j := 0; j < 3; j++ {
if j >= 2 {
continue
}
k++
}
}
return k
}`
eval(t, src, big.NewInt(20))
}
func TestForLoopNestedContinueLabel(t *testing.T) {
src := `
package foo
func Main() int {
var i int
loop:
for ; i < 10; i += 10 {
i++
for j := 0; j < 4; j++ {
if i == 5 {
continue loop
}
i++
}
}
return i
}`
eval(t, src, big.NewInt(15))
}
func TestForLoopRangeBreak(t *testing.T) {
src := `
package foo
func Main() int {
var i int
arr := []int{1, 2, 3}
for i = range arr {
if arr[i] == 2 {
break
}
}
return i
}`
eval(t, src, big.NewInt(1))
}
func TestForLoopRangeNestedBreak(t *testing.T) {
src := `
package foo
func Main() int {
k := 5
arr := []int{1, 2, 3}
urr := []int{4, 5, 6, 7}
loop:
for range arr {
k++
for j := range urr {
k++
if j == 3 {
break loop
}
}
}
return k
}`
eval(t, src, big.NewInt(10))
}
func TestForLoopRangeContinue(t *testing.T) {
src := `
package foo
func Main() int {
i := 6
arr := []int{1, 2, 3}
for j := range arr {
if arr[j] < 2 {
continue
}
i++
}
return i
}`
eval(t, src, big.NewInt(8))
}
func TestForLoopRangeNoVariable(t *testing.T) {
src := `
package foo
func Main() int {
sum := 0
arr := []int{1, 2, 3}
for range arr {
sum += 1
}
return sum
}`
eval(t, src, big.NewInt(3))
}
func TestForLoopRangeCompilerError(t *testing.T) {
src := `
package foo
func f(a int) int { return 0 }
func Main() int {
arr := []int{1, 2, 3}
for _, v := range arr {
f(v)
}
return 0
}`
_, err := compiler.Compile(strings.NewReader(src))
require.Error(t, err)
}
func TestForLoopComplexConditions(t *testing.T) {
src := `
package foo
func Main() int {
var ok bool
_ = ok
i := 0
j := 0
%s
for %s {
i++
j++
%s
}
return i
}`
tests := []struct {
Name string
Cond string
Assign string
Result int64
}{
{Cond: "i < 3 && j < 2", Result: 2},
{Cond: "i < 3 || j < 2", Result: 3},
{Cond: "i < 3 && (j < 2 || i < 1)", Result: 2},
{Cond: "i < 3 && (j < 2 && i < 1)", Result: 1},
{Cond: "(i < 1 || j < 3) && (i < 3 || j < 1)", Result: 3},
{Cond: "(i < 2 && j < 4) || (i < 4 && j < 2)", Result: 2},
{Cond: "ok", Assign: "ok = i < 3 && j < 2", Result: 2},
{Cond: "ok", Assign: "ok = i < 3 || j < 2", Result: 3},
{Cond: "ok", Assign: "ok = i < 3 && (j < 2 || i < 1)", Result: 2},
{Cond: "ok", Assign: "ok = i < 3 && (j < 2 && i < 1)", Result: 1},
{Cond: "ok", Assign: "ok = (i < 1 || j < 3) && (i < 3 || j < 1)", Result: 3},
{Cond: "ok", Assign: "ok = (i < 2 && j < 4) || (i < 4 && j < 2)", Result: 2},
}
for _, tc := range tests {
name := tc.Cond
if tc.Assign != "" {
name = tc.Assign
}
t.Run(name, func(t *testing.T) {
s := fmt.Sprintf(src, tc.Assign, tc.Cond, tc.Assign)
eval(t, s, big.NewInt(tc.Result))
})
}
}