[🐛 Bug]: browser.execute breaks when declaring functions #13444
Description
Have you read the Contributing Guidelines on issues?
- I have read the Contributing Guidelines on issues.
WebdriverIO Version
9.0.7
Node.js Version
v20.13.1
Mode
WDIO Testrunner
Which capabilities are you using?
{
browserName: 'chrome'
}What happened?
When using browser.execute with a script that declares a function, the script gets transformed in such a way that no longer runs inside a browser. This works fine in v8.
For example:
browser.execute(() => {
function fn() {}
});The above gets transformed, and the script that's injected onto the page becomes:
((...args) => {
function callFunction(f, args) {
const deserializedThis = args.shift();
const deserializedArgs = args;
return f.apply(deserializedThis, deserializedArgs);
}
return callFunction((
()=>{function fn(){}__name(fn,"fn")}
), args);
})__name doesn't exist, so it throws an error.
What is your expected behavior?
It should work.
How to reproduce the bug.
I've made a minimal reproducible example at https://github.com/Dinnerbone/wdio-bug-repro/
The actual test that breaks is https://github.com/Dinnerbone/wdio-bug-repro/blob/main/test/specs/test.e2e.ts
This was generated with npx create-wdio@latest just moments ago, the only change is that test.
Relevant log output
[0-0] 2024-08-23T18:20:53.484Z INFO webdriver: BIDI COMMAND script.callFunction {"functionDeclaration":"<Function[53 bytes]>","awaitPromise":false,"arguments":[],"target":{"context":"29984D43E1634C4142BF795BC9F87764"}}
[0-0] AssertionError in "Javascript execution.works"
AssertionError [ERR_ASSERTION]: {
error: {
columnNumber: 28,
exception: {
type: 'error'
},
lineNumber: 6,
message: 'ReferenceError: __name is not defined',
stackTrace: {
callFrames: [
{
columnNumber: 28,
functionName: '',
lineNumber: 6,
url: ''
},
{
columnNumber: 17,
functionName: 'callFunction',
lineNumber: 3,
url: ''
},
{
columnNumber: 13,
functionName: '',
... == 'Success!'
at Context.<anonymous> (C:\Users\Dinnerbone\workspace\personal\wdio-bug\test\specs\test.e2e.ts:13:16)
at Context.executeAsync (C:\Users\Dinnerbone\workspace\personal\wdio-bug\node_modules\@wdio\utils\build\index.js:1488:20)
at Context.testFrameworkFnWrapper (C:\Users\Dinnerbone\workspace\personal\wdio-bug\node_modules\@wdio\utils\build\index.js:1559:14)
Code of Conduct
- I agree to follow this project's Code of Conduct
Is there an existing issue for this?
- I have searched the existing issues