gojs/goja/typedarrays_test.go

545 lines
12 KiB
Go
Raw Permalink Normal View History

2025-11-30 21:28:09 +08:00
package goja
import (
"bytes"
"testing"
)
func TestUint16ArrayObject(t *testing.T) {
vm := New()
buf := vm._newArrayBuffer(vm.global.ArrayBufferPrototype, nil)
buf.data = make([]byte, 16)
if nativeEndian == littleEndian {
buf.data[2] = 0xFE
buf.data[3] = 0xCA
} else {
buf.data[2] = 0xCA
buf.data[3] = 0xFE
}
a := vm.newUint16ArrayObject(buf, 1, 1, nil)
v := a.getIdx(valueInt(0), nil)
if v != valueInt(0xCAFE) {
t.Fatalf("v: %v", v)
}
}
func TestArrayBufferGoWrapper(t *testing.T) {
vm := New()
data := []byte{0xAA, 0xBB}
buf := vm.NewArrayBuffer(data)
vm.Set("buf", buf)
_, err := vm.RunString(`
var a = new Uint8Array(buf);
if (a.length !== 2 || a[0] !== 0xAA || a[1] !== 0xBB) {
throw new Error(a);
}
`)
if err != nil {
t.Fatal(err)
}
ret, err := vm.RunString(`
var b = Uint8Array.of(0xCC, 0xDD);
b.buffer;
`)
if err != nil {
t.Fatal(err)
}
buf1 := ret.Export().(ArrayBuffer)
data1 := buf1.Bytes()
if len(data1) != 2 || data1[0] != 0xCC || data1[1] != 0xDD {
t.Fatal(data1)
}
if buf1.Detached() {
t.Fatal("buf1.Detached() returned true")
}
if !buf1.Detach() {
t.Fatal("buf1.Detach() returned false")
}
if !buf1.Detached() {
t.Fatal("buf1.Detached() returned false")
}
_, err = vm.RunString(`
if (b[0] !== undefined) {
throw new Error("b[0] !== undefined");
}
`)
if err != nil {
t.Fatal(err)
}
}
func TestTypedArrayIdx(t *testing.T) {
const SCRIPT = `
var a = new Uint8Array(1);
// 32-bit integer overflow, should not panic on 32-bit architectures
if (a[4294967297] !== undefined) {
throw new Error("4294967297");
}
// Canonical non-integer
a["Infinity"] = 8;
if (a["Infinity"] !== undefined) {
throw new Error("Infinity");
}
a["NaN"] = 1;
if (a["NaN"] !== undefined) {
throw new Error("NaN");
}
// Non-canonical integer
a["00"] = "00";
if (a["00"] !== "00") {
throw new Error("00");
}
// Non-canonical non-integer
a["1e-3"] = "1e-3";
if (a["1e-3"] !== "1e-3") {
throw new Error("1e-3");
}
if (a["0.001"] !== undefined) {
throw new Error("0.001");
}
// Negative zero
a["-0"] = 88;
if (a["-0"] !== undefined) {
throw new Error("-0");
}
if (a[0] !== 0) {
throw new Error("0");
}
a["9007199254740992"] = 1;
if (a["9007199254740992"] !== undefined) {
throw new Error("9007199254740992");
}
a["-9007199254740992"] = 1;
if (a["-9007199254740992"] !== undefined) {
throw new Error("-9007199254740992");
}
// Safe integer overflow, not canonical (Number("9007199254740993") === 9007199254740992)
a["9007199254740993"] = 1;
if (a["9007199254740993"] !== 1) {
throw new Error("9007199254740993");
}
a["-9007199254740993"] = 1;
if (a["-9007199254740993"] !== 1) {
throw new Error("-9007199254740993");
}
// Safe integer overflow, canonical Number("9007199254740994") == 9007199254740994
a["9007199254740994"] = 1;
if (a["9007199254740994"] !== undefined) {
throw new Error("9007199254740994");
}
a["-9007199254740994"] = 1;
if (a["-9007199254740994"] !== undefined) {
throw new Error("-9007199254740994");
}
`
testScript(SCRIPT, _undefined, t)
}
func TestTypedArraySetDetachedBuffer(t *testing.T) {
const SCRIPT = `
let sample = new Uint8Array([42]);
$DETACHBUFFER(sample.buffer);
sample[0] = 1;
assert.sameValue(sample[0], undefined, 'sample[0] = 1 is undefined');
sample['1.1'] = 1;
assert.sameValue(sample['1.1'], undefined, 'sample[\'1.1\'] = 1 is undefined');
sample['-0'] = 1;
assert.sameValue(sample['-0'], undefined, 'sample[\'-0\'] = 1 is undefined');
sample['-1'] = 1;
assert.sameValue(sample['-1'], undefined, 'sample[\'-1\'] = 1 is undefined');
sample['1'] = 1;
assert.sameValue(sample['1'], undefined, 'sample[\'1\'] = 1 is undefined');
sample['2'] = 1;
assert.sameValue(sample['2'], undefined, 'sample[\'2\'] = 1 is undefined');
`
vm := New()
vm.Set("$DETACHBUFFER", func(buf *ArrayBuffer) {
buf.Detach()
})
vm.testScriptWithTestLib(SCRIPT, _undefined, t)
}
func TestTypedArrayDefinePropDetachedBuffer(t *testing.T) {
const SCRIPT = `
var desc = {
value: 0,
configurable: false,
enumerable: true,
writable: true
};
var obj = {
valueOf: function() {
throw new Error("valueOf() was called");
}
};
let sample = new Uint8Array(42);
$DETACHBUFFER(sample.buffer);
assert.sameValue(
Reflect.defineProperty(sample, "0", desc),
false,
'Reflect.defineProperty(sample, "0", {value: 0, configurable: false, enumerable: true, writable: true} ) must return false'
);
assert.sameValue(
Reflect.defineProperty(sample, "-1", desc),
false,
'Reflect.defineProperty(sample, "-1", {value: 0, configurable: false, enumerable: true, writable: true} ) must return false'
);
assert.sameValue(
Reflect.defineProperty(sample, "1.1", desc),
false,
'Reflect.defineProperty(sample, "1.1", {value: 0, configurable: false, enumerable: true, writable: true} ) must return false'
);
assert.sameValue(
Reflect.defineProperty(sample, "-0", desc),
false,
'Reflect.defineProperty(sample, "-0", {value: 0, configurable: false, enumerable: true, writable: true} ) must return false'
);
assert.sameValue(
Reflect.defineProperty(sample, "2", {
configurable: true,
enumerable: true,
writable: true,
value: obj
}),
false,
'Reflect.defineProperty(sample, "2", {configurable: true, enumerable: true, writable: true, value: obj}) must return false'
);
assert.sameValue(
Reflect.defineProperty(sample, "3", {
configurable: false,
enumerable: false,
writable: true,
value: obj
}),
false,
'Reflect.defineProperty(sample, "3", {configurable: false, enumerable: false, writable: true, value: obj}) must return false'
);
assert.sameValue(
Reflect.defineProperty(sample, "4", {
writable: false,
configurable: false,
enumerable: true,
value: obj
}),
false,
'Reflect.defineProperty("new TA(42)", "4", {writable: false, configurable: false, enumerable: true, value: obj}) must return false'
);
assert.sameValue(
Reflect.defineProperty(sample, "42", desc),
false,
'Reflect.defineProperty(sample, "42", {value: 0, configurable: false, enumerable: true, writable: true} ) must return false'
);
assert.sameValue(
Reflect.defineProperty(sample, "43", desc),
false,
'Reflect.defineProperty(sample, "43", {value: 0, configurable: false, enumerable: true, writable: true} ) must return false'
);
assert.sameValue(
Reflect.defineProperty(sample, "5", {
get: function() {}
}),
false,
'Reflect.defineProperty(sample, "5", {get: function() {}}) must return false'
);
assert.sameValue(
Reflect.defineProperty(sample, "6", {
configurable: false,
enumerable: true,
writable: true
}),
false,
'Reflect.defineProperty(sample, "6", {configurable: false, enumerable: true, writable: true}) must return false'
);
`
vm := New()
vm.Set("$DETACHBUFFER", func(buf *ArrayBuffer) {
buf.Detach()
})
vm.testScriptWithTestLib(SCRIPT, _undefined, t)
}
func TestTypedArrayDefineProperty(t *testing.T) {
const SCRIPT = `
var a = new Uint8Array(1);
assert.throws(TypeError, function() {
Object.defineProperty(a, "1", {value: 1});
});
assert.sameValue(Reflect.defineProperty(a, "1", {value: 1}), false, "1");
assert.throws(TypeError, function() {
Object.defineProperty(a, "Infinity", {value: 8});
});
assert.sameValue(Reflect.defineProperty(a, "Infinity", {value: 8}), false, "Infinity");
Object.defineProperty(a, "test", {value: "passed"});
assert.sameValue(a.test, "passed", "string property");
assert.throws(TypeError, function() {
Object.defineProperty(a, "0", {value: 1, writable: false});
}, "define non-writable");
assert.throws(TypeError, function() {
Object.defineProperty(a, "0", {get() { return 1; }});
}, "define accessor");
var sample = new Uint8Array([42, 42]);
assert.sameValue(
Reflect.defineProperty(sample, "0", {
value: 8,
configurable: true,
enumerable: true,
writable: true
}),
true
);
assert.sameValue(sample[0], 8, "property value was set");
let descriptor0 = Object.getOwnPropertyDescriptor(sample, "0");
assert.sameValue(descriptor0.value, 8);
assert.sameValue(descriptor0.configurable, true, "configurable");
assert.sameValue(descriptor0.enumerable, true);
assert.sameValue(descriptor0.writable, true);
`
testScriptWithTestLib(SCRIPT, _undefined, t)
}
func TestTypedArrayGetInvalidIndex(t *testing.T) {
const SCRIPT = `
var TypedArray = Object.getPrototypeOf(Int8Array);
var proto = TypedArray.prototype;
Object.defineProperty(proto, "1", {
get: function() {
throw new Error("OrdinaryGet was called!");
}
});
var a = new Uint8Array(1);
assert.sameValue(a[1], undefined);
assert.sameValue(a["1"], undefined);
`
testScriptWithTestLib(SCRIPT, _undefined, t)
}
func TestExportArrayBufferToBytes(t *testing.T) {
vm := New()
bb := []byte("test")
ab := vm.NewArrayBuffer(bb)
var b []byte
err := vm.ExportTo(vm.ToValue(ab), &b)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(b, bb) {
t.Fatal("Not equal")
}
err = vm.ExportTo(vm.ToValue(123), &b)
if err == nil {
t.Fatal("expected error")
}
}
func TestTypedArrayExport(t *testing.T) {
vm := New()
t.Run("uint8", func(t *testing.T) {
v, err := vm.RunString("new Uint8Array([1, 2])")
if err != nil {
t.Fatal(err)
}
if a, ok := v.Export().([]uint8); ok {
if len(a) != 2 || a[0] != 1 || a[1] != 2 {
t.Fatal(a)
}
} else {
t.Fatal("Wrong export type")
}
_, err = vm.RunString(`{
let a = new Uint8Array([1, 2]);
if (a[0] !== 1 || a[1] !== 2) {
throw new Error(a);
}
}`)
if err != nil {
t.Fatal(err)
}
})
t.Run("uint8-slice", func(t *testing.T) {
v, err := vm.RunString(`{
const buf = new Uint8Array([1, 2]).buffer;
new Uint8Array(buf, 1, 1);
}`)
if err != nil {
t.Fatal(err)
}
if a, ok := v.Export().([]uint8); ok {
if len(a) != 1 || a[0] != 2 {
t.Fatal(a)
}
} else {
t.Fatal("Wrong export type")
}
_, err = vm.RunString(`{
let a = new Uint8Array([1, 2]);
if (a[0] !== 1 || a[1] !== 2) {
throw new Error(a);
}
}`)
if err != nil {
t.Fatal(err)
}
})
t.Run("int8", func(t *testing.T) {
v, err := vm.RunString("new Int8Array([1, -2])")
if err != nil {
t.Fatal(err)
}
if a, ok := v.Export().([]int8); ok {
if len(a) != 2 || a[0] != 1 || a[1] != -2 {
t.Fatal(a)
}
} else {
t.Fatal("Wrong export type")
}
})
t.Run("uint16", func(t *testing.T) {
v, err := vm.RunString("new Uint16Array([1, 63000])")
if err != nil {
t.Fatal(err)
}
if a, ok := v.Export().([]uint16); ok {
if len(a) != 2 || a[0] != 1 || a[1] != 63000 {
t.Fatal(a)
}
} else {
t.Fatal("Wrong export type")
}
})
t.Run("int16", func(t *testing.T) {
v, err := vm.RunString("new Int16Array([1, -31000])")
if err != nil {
t.Fatal(err)
}
if a, ok := v.Export().([]int16); ok {
if len(a) != 2 || a[0] != 1 || a[1] != -31000 {
t.Fatal(a)
}
} else {
t.Fatal("Wrong export type")
}
})
t.Run("uint32", func(t *testing.T) {
v, err := vm.RunString("new Uint32Array([1, 123456])")
if err != nil {
t.Fatal(err)
}
if a, ok := v.Export().([]uint32); ok {
if len(a) != 2 || a[0] != 1 || a[1] != 123456 {
t.Fatal(a)
}
} else {
t.Fatal("Wrong export type")
}
})
t.Run("int32", func(t *testing.T) {
v, err := vm.RunString("new Int32Array([1, -123456])")
if err != nil {
t.Fatal(err)
}
if a, ok := v.Export().([]int32); ok {
if len(a) != 2 || a[0] != 1 || a[1] != -123456 {
t.Fatal(a)
}
} else {
t.Fatal("Wrong export type")
}
})
t.Run("float32", func(t *testing.T) {
v, err := vm.RunString("new Float32Array([1, -1.23456])")
if err != nil {
t.Fatal(err)
}
if a, ok := v.Export().([]float32); ok {
if len(a) != 2 || a[0] != 1 || a[1] != -1.23456 {
t.Fatal(a)
}
} else {
t.Fatal("Wrong export type")
}
})
t.Run("float64", func(t *testing.T) {
v, err := vm.RunString("new Float64Array([1, -1.23456789])")
if err != nil {
t.Fatal(err)
}
if a, ok := v.Export().([]float64); ok {
if len(a) != 2 || a[0] != 1 || a[1] != -1.23456789 {
t.Fatal(a)
}
} else {
t.Fatal("Wrong export type")
}
})
t.Run("bigint64", func(t *testing.T) {
v, err := vm.RunString("new BigInt64Array([18446744073709551617n, 2n])")
if err != nil {
t.Fatal(err)
}
if a, ok := v.Export().([]int64); ok {
if len(a) != 2 || a[0] != 1 || a[1] != 2 {
t.Fatal(a)
}
} else {
t.Fatal("Wrong export type")
}
})
t.Run("biguint64", func(t *testing.T) {
v, err := vm.RunString("new BigUint64Array([18446744073709551617n, 2n])")
if err != nil {
t.Fatal(err)
}
if a, ok := v.Export().([]uint64); ok {
if len(a) != 2 || a[0] != 1 || a[1] != 2 {
t.Fatal(a)
}
} else {
t.Fatal("Wrong export type")
}
})
}