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authorYoshiya Hinosawa <stibium121@gmail.com>2023-02-21 00:35:04 +0900
committerGitHub <noreply@github.com>2023-02-20 16:35:04 +0100
commit6915a9b7a701dde0e1078867961c9a91811c1850 (patch)
treee6822f2b8400c7c7941d3cb9ace59842389b5bc9 /cli/tests/node_compat/test/parallel/test-stream-readable-needReadable.js
parenta1cd2a5915c13f6a9b8eafa3807e143a02616bc1 (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.js106
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);
+ }));
+ }));
+ }));
+}));