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'use strict';
const common = require('../common');
const assert = require('assert');
const {
readFileSync,
} = require('fs');
const {
open,
} = require('fs/promises');
const check = readFileSync(__filename, { encoding: 'utf8' });
// Make sure the ReadableStream works...
(async () => {
const dec = new TextDecoder();
const file = await open(__filename);
let data = '';
for await (const chunk of file.readableWebStream())
data += dec.decode(chunk);
assert.strictEqual(check, data);
assert.throws(() => file.readableWebStream(), {
code: 'ERR_INVALID_STATE',
});
await file.close();
})().then(common.mustCall());
// Make sure that acquiring a ReadableStream fails if the
// FileHandle is already closed.
(async () => {
const file = await open(__filename);
await file.close();
assert.throws(() => file.readableWebStream(), {
code: 'ERR_INVALID_STATE',
});
})().then(common.mustCall());
// Make sure that acquiring a ReadableStream fails if the
// FileHandle is already closing.
(async () => {
const file = await open(__filename);
file.close();
assert.throws(() => file.readableWebStream(), {
code: 'ERR_INVALID_STATE',
});
})().then(common.mustCall());
// Make sure the ReadableStream is closed when the underlying
// FileHandle is closed.
(async () => {
const file = await open(__filename);
const readable = file.readableWebStream();
const reader = readable.getReader();
file.close();
await reader.closed;
})().then(common.mustCall());
// Make sure the ReadableStream is closed when the underlying
// FileHandle is closed.
(async () => {
const file = await open(__filename);
const readable = file.readableWebStream();
file.close();
const reader = readable.getReader();
await reader.closed;
})().then(common.mustCall());
// Make sure that the FileHandle is properly marked "in use"
// when a ReadableStream has been acquired for it.
(async () => {
const file = await open(__filename);
file.readableWebStream();
const mc = new MessageChannel();
mc.port1.onmessage = common.mustNotCall();
assert.throws(() => mc.port2.postMessage(file, [file]), {
code: 25,
name: 'DataCloneError',
});
mc.port1.close();
await file.close();
})().then(common.mustCall());
// Make sure 'bytes' stream works
(async () => {
const file = await open(__filename);
const dec = new TextDecoder();
const readable = file.readableWebStream({ type: 'bytes' });
const reader = readable.getReader({ mode: 'byob' });
let data = '';
let result;
do {
const buff = new ArrayBuffer(100);
result = await reader.read(new DataView(buff));
if (result.value !== undefined) {
data += dec.decode(result.value);
assert.ok(result.value.byteLength <= 100);
}
} while (!result.done);
assert.strictEqual(check, data);
assert.throws(() => file.readableWebStream(), {
code: 'ERR_INVALID_STATE',
});
await file.close();
})().then(common.mustCall());
// Make sure that acquiring a ReadableStream 'bytes' stream
// fails if the FileHandle is already closed.
(async () => {
const file = await open(__filename);
await file.close();
assert.throws(() => file.readableWebStream({ type: 'bytes' }), {
code: 'ERR_INVALID_STATE',
});
})().then(common.mustCall());
// Make sure that acquiring a ReadableStream 'bytes' stream
// fails if the FileHandle is already closing.
(async () => {
const file = await open(__filename);
file.close();
assert.throws(() => file.readableWebStream({ type: 'bytes' }), {
code: 'ERR_INVALID_STATE',
});
})().then(common.mustCall());
// Make sure the 'bytes' ReadableStream is closed when the underlying
// FileHandle is closed.
(async () => {
const file = await open(__filename);
const readable = file.readableWebStream({ type: 'bytes' });
const reader = readable.getReader({ mode: 'byob' });
file.close();
await reader.closed;
})().then(common.mustCall());
// Make sure the 'bytes' ReadableStream is closed when the underlying
// FileHandle is closed.
(async () => {
const file = await open(__filename);
const readable = file.readableWebStream({ type: 'bytes' });
file.close();
const reader = readable.getReader({ mode: 'byob' });
await reader.closed;
})().then(common.mustCall());
// Make sure that the FileHandle is properly marked "in use"
// when a 'bytes' ReadableStream has been acquired for it.
(async () => {
const file = await open(__filename);
file.readableWebStream({ type: 'bytes' });
const mc = new MessageChannel();
mc.port1.onmessage = common.mustNotCall();
assert.throws(() => mc.port2.postMessage(file, [file]), {
code: 25,
name: 'DataCloneError',
});
mc.port1.close();
await file.close();
})().then(common.mustCall());
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