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7b83636800
This commit adds the syscall/js package, which is used by the wasm architecture to access the WebAssembly host environment (and the operating system through it). Currently, web browsers and Node.js are supported hosts, which is why the API is based on JavaScript APIs. There is no common API standardized in the WebAssembly ecosystem yet. This package is experimental. Its current scope is only to allow tests to run, but not yet to provide a comprehensive API for users. Updates #18892 Change-Id: I236ea10a70d95cdd50562212f2c18c3db5009230 Reviewed-on: https://go-review.googlesource.com/109195 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
128 lines
3 KiB
Go
128 lines
3 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build js,wasm
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package js_test
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import (
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"syscall/js"
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"testing"
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)
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var dummys = js.Global.Call("eval", `({
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someBool: true,
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someString: "abc\u1234",
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someInt: 42,
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someFloat: 42.123,
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someArray: [41, 42, 43],
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add: function(a, b) {
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return a + b;
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},
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})`)
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func TestBool(t *testing.T) {
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want := true
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o := dummys.Get("someBool")
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if got := o.Bool(); got != want {
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t.Errorf("got %#v, want %#v", got, want)
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}
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dummys.Set("otherBool", want)
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if got := dummys.Get("otherBool").Bool(); got != want {
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t.Errorf("got %#v, want %#v", got, want)
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}
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}
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func TestString(t *testing.T) {
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want := "abc\u1234"
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o := dummys.Get("someString")
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if got := o.String(); got != want {
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t.Errorf("got %#v, want %#v", got, want)
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}
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dummys.Set("otherString", want)
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if got := dummys.Get("otherString").String(); got != want {
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t.Errorf("got %#v, want %#v", got, want)
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}
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}
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func TestInt(t *testing.T) {
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want := 42
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o := dummys.Get("someInt")
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if got := o.Int(); got != want {
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t.Errorf("got %#v, want %#v", got, want)
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}
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dummys.Set("otherInt", want)
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if got := dummys.Get("otherInt").Int(); got != want {
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t.Errorf("got %#v, want %#v", got, want)
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}
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}
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func TestFloat(t *testing.T) {
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want := 42.123
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o := dummys.Get("someFloat")
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if got := o.Float(); got != want {
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t.Errorf("got %#v, want %#v", got, want)
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}
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dummys.Set("otherFloat", want)
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if got := dummys.Get("otherFloat").Float(); got != want {
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t.Errorf("got %#v, want %#v", got, want)
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}
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}
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func TestUndefined(t *testing.T) {
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dummys.Set("test", js.Undefined)
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if dummys == js.Undefined || dummys.Get("test") != js.Undefined || dummys.Get("xyz") != js.Undefined {
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t.Errorf("js.Undefined expected")
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}
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}
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func TestNull(t *testing.T) {
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dummys.Set("test1", nil)
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dummys.Set("test2", js.Null)
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if dummys == js.Null || dummys.Get("test1") != js.Null || dummys.Get("test2") != js.Null {
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t.Errorf("js.Null expected")
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}
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}
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func TestLength(t *testing.T) {
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if got := dummys.Get("someArray").Length(); got != 3 {
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t.Errorf("got %#v, want %#v", got, 3)
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}
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}
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func TestIndex(t *testing.T) {
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if got := dummys.Get("someArray").Index(1).Int(); got != 42 {
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t.Errorf("got %#v, want %#v", got, 42)
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}
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}
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func TestSetIndex(t *testing.T) {
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dummys.Get("someArray").SetIndex(2, 99)
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if got := dummys.Get("someArray").Index(2).Int(); got != 99 {
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t.Errorf("got %#v, want %#v", got, 99)
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}
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}
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func TestCall(t *testing.T) {
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var i int64 = 40
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if got := dummys.Call("add", i, 2).Int(); got != 42 {
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t.Errorf("got %#v, want %#v", got, 42)
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}
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if got := dummys.Call("add", js.Global.Call("eval", "40"), 2).Int(); got != 42 {
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t.Errorf("got %#v, want %#v", got, 42)
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}
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}
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func TestInvoke(t *testing.T) {
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var i int64 = 40
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if got := dummys.Get("add").Invoke(i, 2).Int(); got != 42 {
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t.Errorf("got %#v, want %#v", got, 42)
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}
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}
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func TestNew(t *testing.T) {
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if got := js.Global.Get("Array").New(42).Length(); got != 42 {
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t.Errorf("got %#v, want %#v", got, 42)
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}
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}
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