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Tests/LibWeb: Add TransformStream transform callback test

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This test proves the ability of TransformStream to execute to execute
caller supplied code in the transform callback that can transform
incoming chunks, and have access to TransformStreamDefaultController.
This commit is contained in:
Kenneth Myhra
2023-07-13 23:29:01 +02:00
committed by Andreas Kling
parent 1faca5ed9f
commit 74fdf59941
Notes: sideshowbarker 2024-07-17 06:24:08 +09:00 
Author: https://github.com/kennethmyhra
Commit: https://github.com/SerenityOS/serenity/commit/74fdf59941
Pull-request: https://github.com/SerenityOS/serenity/pull/19998
Reviewed-by: https://github.com/awesomekling
Reviewed-by: https://github.com/shannonbooth
2 changed files with 25 additions and 0 deletions
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Tests/LibWeb/Text/input/Streams/TransformStream-transform-callback.html Normal file
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<script src="../include.js"></script>
<script>
test(() => {
const {writable, readable} = new TransformStream({
transform(chunk, controller) {
controller.enqueue(chunk.toUpperCase());
}
});
const writer = writable.getWriter();
writer.write("Hello, world!");
writer.close();
const reader = readable.getReader();
reader.read().then(function processText({done, value}) {
println(`Done: ${done}`);
if (done)
return;
println(value);
reader.read().then(processText);
});
});
</script>