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author | Yoshiya Hinosawa <stibium121@gmail.com> | 2023-02-21 00:35:04 +0900 |
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committer | GitHub <noreply@github.com> | 2023-02-20 16:35:04 +0100 |
commit | 6915a9b7a701dde0e1078867961c9a91811c1850 (patch) | |
tree | e6822f2b8400c7c7941d3cb9ace59842389b5bc9 /cli/tests/node_compat/test/parallel/test-stream-readable-needReadable.js | |
parent | a1cd2a5915c13f6a9b8eafa3807e143a02616bc1 (diff) |
test(ext/node): more node compat tests (#17827)
This PR adds the remaining ~650 Node.js compat test cases from std/node.
Among these 650 cases, about 130 cases are now failing. These failing
cases are prefixed with `TODO:` in `tests/node_compat/config.json`.
These will be addressed in later PRs.
Diffstat (limited to 'cli/tests/node_compat/test/parallel/test-stream-readable-needReadable.js')
-rw-r--r-- | cli/tests/node_compat/test/parallel/test-stream-readable-needReadable.js | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/cli/tests/node_compat/test/parallel/test-stream-readable-needReadable.js b/cli/tests/node_compat/test/parallel/test-stream-readable-needReadable.js new file mode 100644 index 000000000..49051aed3 --- /dev/null +++ b/cli/tests/node_compat/test/parallel/test-stream-readable-needReadable.js @@ -0,0 +1,106 @@ +// deno-fmt-ignore-file +// deno-lint-ignore-file + +// Copyright Joyent and Node contributors. All rights reserved. MIT license. +// Taken from Node 18.12.1 +// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually + +'use strict'; +const common = require('../common'); +const assert = require('assert'); +const Readable = require('stream').Readable; + +const readable = new Readable({ + read: () => {} +}); + +// Initialized to false. +assert.strictEqual(readable._readableState.needReadable, false); + +readable.on('readable', common.mustCall(() => { + // When the readable event fires, needReadable is reset. + assert.strictEqual(readable._readableState.needReadable, false); + readable.read(); +})); + +// If a readable listener is attached, then a readable event is needed. +assert.strictEqual(readable._readableState.needReadable, true); + +readable.push('foo'); +readable.push(null); + +readable.on('end', common.mustCall(() => { + // No need to emit readable anymore when the stream ends. + assert.strictEqual(readable._readableState.needReadable, false); +})); + +const asyncReadable = new Readable({ + read: () => {} +}); + +asyncReadable.on('readable', common.mustCall(() => { + if (asyncReadable.read() !== null) { + // After each read(), the buffer is empty. + // If the stream doesn't end now, + // then we need to notify the reader on future changes. + assert.strictEqual(asyncReadable._readableState.needReadable, true); + } +}, 2)); + +process.nextTick(common.mustCall(() => { + asyncReadable.push('foooo'); +})); +process.nextTick(common.mustCall(() => { + asyncReadable.push('bar'); +})); +setImmediate(common.mustCall(() => { + asyncReadable.push(null); + assert.strictEqual(asyncReadable._readableState.needReadable, false); +})); + +const flowing = new Readable({ + read: () => {} +}); + +// Notice this must be above the on('data') call. +flowing.push('foooo'); +flowing.push('bar'); +flowing.push('quo'); +process.nextTick(common.mustCall(() => { + flowing.push(null); +})); + +// When the buffer already has enough data, and the stream is +// in flowing mode, there is no need for the readable event. +flowing.on('data', common.mustCall(function(data) { + assert.strictEqual(flowing._readableState.needReadable, false); +}, 3)); + +const slowProducer = new Readable({ + read: () => {} +}); + +slowProducer.on('readable', common.mustCall(() => { + const chunk = slowProducer.read(8); + const state = slowProducer._readableState; + if (chunk === null) { + // The buffer doesn't have enough data, and the stream is not need, + // we need to notify the reader when data arrives. + assert.strictEqual(state.needReadable, true); + } else { + assert.strictEqual(state.needReadable, false); + } +}, 4)); + +process.nextTick(common.mustCall(() => { + slowProducer.push('foo'); + process.nextTick(common.mustCall(() => { + slowProducer.push('foo'); + process.nextTick(common.mustCall(() => { + slowProducer.push('foo'); + process.nextTick(common.mustCall(() => { + slowProducer.push(null); + })); + })); + })); +})); |