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test: improve lib/internal/webstreams/readablestream.js coverage #42823

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Merged
nodejs-github-bot merged 3 commits into from
May 5, 2022
Merged

test: improve lib/internal/webstreams/readablestream.js coverage #42823

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a933ea9
test: improve `lib/internal/webstreams/readablestream.js` coverage
fossamagna Apr 22, 2022
293c6fc
test: change that checking only the `code` property
fossamagna Apr 22, 2022
84e8749
test: check that promises of `assert.rejects` is resolved
fossamagna Apr 22, 2022
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test: improve lib/internal/webstreams/readablestream.js coverage
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@fossamagna
fossamagna committed Apr 22, 2022
commit a933ea98861816373d9fa235e2659ec6b714391c
21 changes: 21 additions & 0 deletions test/parallel/test-whatwg-readablebytestream.js
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,9 @@ const {
defaultReader.releaseLock();
const byobReader = r.getReader({ mode: 'byob' });
assert(byobReader instanceof ReadableStreamBYOBReader);
assert.match(
inspect(byobReader, { depth: 0 }),
/ReadableStreamBYOBReader/);
}

class Source {
Expand Down Expand Up @@ -209,9 +212,11 @@ class Source {
reader.releaseLock();
assert.rejects(reader.read(new Uint8Array(10)), {
code: 'ERR_INVALID_STATE',
message: 'Invalid state: The reader is not attached to a stream',

@aduh95 aduh95 Apr 22, 2022 •
edited
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We should not test error messages, see #42813

Suggested change
message: 'Invalid state: The reader is not attached to a stream',

@fossamagna fossamagna Apr 22, 2022

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@aduh95 Thanks, I change that checking only the code property.

});
assert.rejects(reader.cancel(), {
code: 'ERR_INVALID_STATE',
message: 'Invalid state: The reader is not attached to a stream',
});
}

Expand All @@ -227,9 +232,25 @@ class Source {
controller.close();
assert.throws(() => controller.enqueue(new Uint8Array(10)), {
code: 'ERR_INVALID_STATE',
message: 'Invalid state: ReadableStream is already closed',
});
assert.throws(() => controller.close(), {
code: 'ERR_INVALID_STATE',
message: 'Invalid state: ReadableStream is already closed',
});
}

{
let controller;
new ReadableStream({
type: 'bytes',
start(c) { controller = c; }
});
controller.enqueue(new Uint8Array(10));
controller.close();
assert.throws(() => controller.enqueue(new Uint8Array(10)), {
code: 'ERR_INVALID_STATE',
message: 'Invalid state: Controller is already closed',
});
}

Expand Down
22 changes: 22 additions & 0 deletions test/parallel/test-whatwg-readablestream.js
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Expand Up @@ -32,6 +32,7 @@ const {
readableStreamDefaultControllerCanCloseOrEnqueue,
readableByteStreamControllerClose,
readableByteStreamControllerRespond,
readableStreamReaderGenericRelease,
} = require('internal/webstreams/readablestream');

const {
Expand Down Expand Up @@ -371,6 +372,24 @@ assert.throws(() => {
});
}

{
const stream = new ReadableStream();
const iterable = stream.values();
readableStreamReaderGenericRelease(stream[kState].reader);
assert.rejects(iterable.next(), {
code: 'ERR_INVALID_STATE',
});

@aduh95 aduh95 Apr 22, 2022

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Suggested change
});
}).then(common.mustCall());

}

{
const stream = new ReadableStream();
const iterable = stream.values();
readableStreamReaderGenericRelease(stream[kState].reader);
assert.rejects(iterable.return(), {
code: 'ERR_INVALID_STATE',
});

@aduh95 aduh95 Apr 22, 2022

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Suggested change
});
}).then(common.mustCall());

}

{
const stream = new ReadableStream({
start(controller) {
Expand Down Expand Up @@ -1357,6 +1376,9 @@ class Source {
assert.throws(() => ReadableStream.prototype.tee.call({}), {
code: 'ERR_INVALID_THIS',
});
assert.throws(() => ReadableStream.prototype.values.call({}), {
code: 'ERR_INVALID_THIS',
});
assert.throws(() => ReadableStream.prototype[kTransfer].call({}), {
code: 'ERR_INVALID_THIS',
});
Expand Down