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builtin_set_test.go
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builtin_set_test.go
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package goja
import (
"fmt"
"strings"
"testing"
)
func TestSetEvilIterator(t *testing.T) {
const SCRIPT = `
var o = {};
o[Symbol.iterator] = function() {
return {
next: function() {
if (!this.flag) {
this.flag = true;
return {};
}
return {done: true};
}
}
}
new Set(o);
undefined;
`
testScript(SCRIPT, _undefined, t)
}
func ExampleRuntime_ExportTo_setToMap() {
vm := New()
s, err := vm.RunString(`
new Set([1, 2, 3])
`)
if err != nil {
panic(err)
}
m := make(map[int]struct{})
err = vm.ExportTo(s, &m)
if err != nil {
panic(err)
}
fmt.Println(m)
// Output: map[1:{} 2:{} 3:{}]
}
func ExampleRuntime_ExportTo_setToSlice() {
vm := New()
s, err := vm.RunString(`
new Set([1, 2, 3])
`)
if err != nil {
panic(err)
}
var a []int
err = vm.ExportTo(s, &a)
if err != nil {
panic(err)
}
fmt.Println(a)
// Output: [1 2 3]
}
func TestSetExportToSliceCircular(t *testing.T) {
vm := New()
s, err := vm.RunString(`
let s = new Set();
s.add(s);
s;
`)
if err != nil {
t.Fatal(err)
}
var a []Value
err = vm.ExportTo(s, &a)
if err != nil {
t.Fatal(err)
}
if len(a) != 1 {
t.Fatalf("len: %d", len(a))
}
if a[0] != s {
t.Fatalf("a: %v", a)
}
}
func TestSetExportToArrayMismatchedLengths(t *testing.T) {
vm := New()
s, err := vm.RunString(`
new Set([1, 2])
`)
if err != nil {
panic(err)
}
var s1 [3]int
err = vm.ExportTo(s, &s1)
if err == nil {
t.Fatal("expected error")
}
if msg := err.Error(); !strings.Contains(msg, "lengths mismatch") {
t.Fatalf("unexpected error: %v", err)
}
}
func TestSetExportToNilMap(t *testing.T) {
vm := New()
var m map[int]interface{}
res, err := vm.RunString("new Set([1])")
if err != nil {
t.Fatal(err)
}
err = vm.ExportTo(res, &m)
if err != nil {
t.Fatal(err)
}
if len(m) != 1 {
t.Fatal(m)
}
if _, exists := m[1]; !exists {
t.Fatal(m)
}
}
func TestSetExportToNonNilMap(t *testing.T) {
vm := New()
m := map[int]interface{}{
2: true,
}
res, err := vm.RunString("new Set([1])")
if err != nil {
t.Fatal(err)
}
err = vm.ExportTo(res, &m)
if err != nil {
t.Fatal(err)
}
if len(m) != 1 {
t.Fatal(m)
}
if _, exists := m[1]; !exists {
t.Fatal(m)
}
}