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|
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import {
assert,
assertEquals,
assertRejects,
assertThrows,
unreachable,
} from "./test_util.ts";
Deno.test(
{ permissions: { read: true, write: true } },
function writeFileSyncSuccess() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
Deno.writeFileSync(filename, data);
const dataRead = Deno.readFileSync(filename);
const dec = new TextDecoder("utf-8");
const actual = dec.decode(dataRead);
assertEquals(actual, "Hello");
},
);
Deno.test(
{ permissions: { read: true, write: true } },
function writeFileSyncUrl() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const tempDir = Deno.makeTempDirSync();
const fileUrl = new URL(
`file://${Deno.build.os === "windows" ? "/" : ""}${tempDir}/test.txt`,
);
Deno.writeFileSync(fileUrl, data);
const dataRead = Deno.readFileSync(fileUrl);
const dec = new TextDecoder("utf-8");
const actual = dec.decode(dataRead);
assertEquals(actual, "Hello");
Deno.removeSync(tempDir, { recursive: true });
},
);
Deno.test({ permissions: { write: true } }, function writeFileSyncFail() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = "/baddir/test.txt";
// The following should fail because /baddir doesn't exist (hopefully).
assertThrows(() => {
Deno.writeFileSync(filename, data);
}, Deno.errors.NotFound);
});
Deno.test({ permissions: { write: false } }, function writeFileSyncPerm() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = "/baddir/test.txt";
// The following should fail due to no write permission
assertThrows(() => {
Deno.writeFileSync(filename, data);
}, Deno.errors.NotCapable);
});
Deno.test(
{ permissions: { read: true, write: true } },
function writeFileSyncUpdateMode() {
if (Deno.build.os !== "windows") {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
Deno.writeFileSync(filename, data, { mode: 0o755 });
assertEquals(Deno.statSync(filename).mode! & 0o777, 0o755);
Deno.writeFileSync(filename, data, { mode: 0o666 });
assertEquals(Deno.statSync(filename).mode! & 0o777, 0o666);
}
},
);
Deno.test(
{ permissions: { read: true, write: true } },
function writeFileSyncCreate() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
// if create turned off, the file won't be created
assertThrows(() => {
Deno.writeFileSync(filename, data, { create: false });
}, Deno.errors.NotFound);
// Turn on create, should have no error
Deno.writeFileSync(filename, data, { create: true });
Deno.writeFileSync(filename, data, { create: false });
const dataRead = Deno.readFileSync(filename);
const dec = new TextDecoder("utf-8");
const actual = dec.decode(dataRead);
assertEquals(actual, "Hello");
},
);
Deno.test(
{ permissions: { read: true, write: true } },
function writeFileSyncCreateNew() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
Deno.writeFileSync(filename, data, { createNew: true });
assertThrows(() => {
Deno.writeFileSync(filename, data, { createNew: true });
}, Deno.errors.AlreadyExists);
},
);
Deno.test(
{ permissions: { read: true, write: true } },
function writeFileSyncAppend() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
Deno.writeFileSync(filename, data);
Deno.writeFileSync(filename, data, { append: true });
let dataRead = Deno.readFileSync(filename);
const dec = new TextDecoder("utf-8");
let actual = dec.decode(dataRead);
assertEquals(actual, "HelloHello");
// Now attempt overwrite
Deno.writeFileSync(filename, data, { append: false });
dataRead = Deno.readFileSync(filename);
actual = dec.decode(dataRead);
assertEquals(actual, "Hello");
// append not set should also overwrite
Deno.writeFileSync(filename, data);
dataRead = Deno.readFileSync(filename);
actual = dec.decode(dataRead);
assertEquals(actual, "Hello");
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileSuccess() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
await Deno.writeFile(filename, data);
const dataRead = Deno.readFileSync(filename);
const dec = new TextDecoder("utf-8");
const actual = dec.decode(dataRead);
assertEquals(actual, "Hello");
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileUrl() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const tempDir = await Deno.makeTempDir();
const fileUrl = new URL(
`file://${Deno.build.os === "windows" ? "/" : ""}${tempDir}/test.txt`,
);
await Deno.writeFile(fileUrl, data);
const dataRead = Deno.readFileSync(fileUrl);
const dec = new TextDecoder("utf-8");
const actual = dec.decode(dataRead);
assertEquals(actual, "Hello");
Deno.removeSync(tempDir, { recursive: true });
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileNotFound() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = "/baddir/test.txt";
// The following should fail because /baddir doesn't exist (hopefully).
await assertRejects(async () => {
await Deno.writeFile(filename, data);
}, Deno.errors.NotFound);
},
);
Deno.test(
{ permissions: { read: true, write: false } },
async function writeFilePerm() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = "/baddir/test.txt";
// The following should fail due to no write permission
await assertRejects(async () => {
await Deno.writeFile(filename, data);
}, Deno.errors.NotCapable);
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileUpdateMode() {
if (Deno.build.os !== "windows") {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
await Deno.writeFile(filename, data, { mode: 0o755 });
assertEquals(Deno.statSync(filename).mode! & 0o777, 0o755);
await Deno.writeFile(filename, data, { mode: 0o666 });
assertEquals(Deno.statSync(filename).mode! & 0o777, 0o666);
}
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileCreate() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
// if create turned off, the file won't be created
await assertRejects(async () => {
await Deno.writeFile(filename, data, { create: false });
}, Deno.errors.NotFound);
// Turn on create, should have no error
await Deno.writeFile(filename, data, { create: true });
await Deno.writeFile(filename, data, { create: false });
const dataRead = Deno.readFileSync(filename);
const dec = new TextDecoder("utf-8");
const actual = dec.decode(dataRead);
assertEquals(actual, "Hello");
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileCreateNew() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
await Deno.writeFile(filename, data, { createNew: true });
await assertRejects(async () => {
await Deno.writeFile(filename, data, { createNew: true });
}, Deno.errors.AlreadyExists);
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileAppend() {
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
await Deno.writeFile(filename, data);
await Deno.writeFile(filename, data, { append: true });
let dataRead = Deno.readFileSync(filename);
const dec = new TextDecoder("utf-8");
let actual = dec.decode(dataRead);
assertEquals(actual, "HelloHello");
// Now attempt overwrite
await Deno.writeFile(filename, data, { append: false });
dataRead = Deno.readFileSync(filename);
actual = dec.decode(dataRead);
assertEquals(actual, "Hello");
// append not set should also overwrite
await Deno.writeFile(filename, data);
dataRead = Deno.readFileSync(filename);
actual = dec.decode(dataRead);
assertEquals(actual, "Hello");
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileAbortSignal(): Promise<void> {
const ac = new AbortController();
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
queueMicrotask(() => ac.abort());
try {
await Deno.writeFile(filename, data, { signal: ac.signal });
unreachable();
} catch (e) {
assert(e instanceof Error);
assertEquals(e.name, "AbortError");
}
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileAbortSignalReason(): Promise<void> {
const ac = new AbortController();
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
const abortReason = new Error();
queueMicrotask(() => ac.abort(abortReason));
try {
await Deno.writeFile(filename, data, { signal: ac.signal });
unreachable();
} catch (e) {
assertEquals(e, abortReason);
}
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileAbortSignalPrimitiveReason(): Promise<void> {
const ac = new AbortController();
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
queueMicrotask(() => ac.abort("Some string"));
try {
await Deno.writeFile(filename, data, { signal: ac.signal });
unreachable();
} catch (e) {
assertEquals(e, "Some string");
}
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileAbortSignalPreAborted(): Promise<void> {
const ac = new AbortController();
ac.abort();
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
try {
await Deno.writeFile(filename, data, { signal: ac.signal });
unreachable();
} catch (e) {
assert(e instanceof Error);
assertEquals(e.name, "AbortError");
}
assertNotExists(filename);
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileAbortSignalReasonPreAborted(): Promise<void> {
const ac = new AbortController();
const abortReason = new Error();
ac.abort(abortReason);
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
try {
await Deno.writeFile(filename, data, { signal: ac.signal });
unreachable();
} catch (e) {
assertEquals(e, abortReason);
}
assertNotExists(filename);
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileAbortSignalPrimitiveReasonPreAborted(): Promise<
void
> {
const ac = new AbortController();
ac.abort("Some string");
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
try {
await Deno.writeFile(filename, data, { signal: ac.signal });
unreachable();
} catch (e) {
assertEquals(e, "Some string");
}
assertNotExists(filename);
},
);
// Test that AbortController's cancel handle is cleaned-up correctly, and do not leak resources.
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileWithAbortSignalNotCalled() {
const ac = new AbortController();
const enc = new TextEncoder();
const data = enc.encode("Hello");
const filename = Deno.makeTempDirSync() + "/test.txt";
await Deno.writeFile(filename, data, { signal: ac.signal });
const dataRead = Deno.readFileSync(filename);
const dec = new TextDecoder("utf-8");
const actual = dec.decode(dataRead);
assertEquals(actual, "Hello");
},
);
function assertNotExists(filename: string | URL) {
if (pathExists(filename)) {
throw new Error(`The file ${filename} exists.`);
}
}
function pathExists(path: string | URL) {
try {
Deno.statSync(path);
return true;
} catch {
return false;
}
}
Deno.test(
{ permissions: { read: true, write: true } },
async function writeFileStream() {
const stream = new ReadableStream({
pull(controller) {
controller.enqueue(new Uint8Array([1]));
controller.enqueue(new Uint8Array([2]));
controller.close();
},
});
const filename = Deno.makeTempDirSync() + "/test.txt";
await Deno.writeFile(filename, stream);
assertEquals(Deno.readFileSync(filename), new Uint8Array([1, 2]));
},
);
Deno.test(
{ permissions: { read: true, write: true } },
async function overwriteFileWithStream() {
const filename = Deno.makeTempDirSync() + "/test.txt";
await Deno.writeFile(filename, new Uint8Array([1, 2, 3, 4]));
const stream = new ReadableStream({
pull(controller) {
controller.enqueue(new Uint8Array([1]));
controller.enqueue(new Uint8Array([2]));
controller.close();
},
});
await Deno.writeFile(filename, stream);
assertEquals(Deno.readFileSync(filename), new Uint8Array([1, 2]));
},
);
|
