webview_javascript_test.go RawHistoryFolder

1package cef
2
3import (
4	"context"
5	"testing"
6
7	purecef "github.com/bnema/purego-cef/cef"
8	cefmocks "github.com/bnema/purego-cef/cef/mocks"
9	"github.com/stretchr/testify/require"
10)
11
12func TestWebViewRunJavaScript_PostsExecutionToCefUIThread(t *testing.T) {
13	browser := cefmocks.NewMockBrowser(t)
14	frame := cefmocks.NewMockFrame(t)
15	const script = "document.body.dataset.dumber = '1'"
16
17	oldTask := cefNewTask
18	oldPost := cefPostTask
19	defer func() {
20		cefNewTask = oldTask
21		cefPostTask = oldPost
22	}()
23	cefNewTask = func(task purecef.Task) purecef.Task { return task }
24
25	var scheduled purecef.Task
26	cefPostTask = func(threadID purecef.ThreadID, task purecef.Task) int32 {
27		require.Equal(t, purecef.ThreadIDTidUi, threadID)
28		require.NotNil(t, task)
29		scheduled = task
30		return 1
31	}
32
33	wv := &WebView{ctx: context.Background(), engine: &Engine{}, browser: browser}
34	wv.RunJavaScript(context.Background(), script)
35
36	require.NotNil(t, scheduled)
37	browser.EXPECT().GetMainFrame().Return(frame).Once()
38	frame.EXPECT().ExecuteJavaScript(script, "", int32(0)).Once()
39	scheduled.Execute()
40}