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![Asher Gomez](/assets/img/avatar_default.png)
This PR: 1. Replaces `@test_util/std`-prefixed imports with `@std`. 2. Adds `@std/` import map entries to a few `deno.json` files.
124 lines
3 KiB
TypeScript
124 lines
3 KiB
TypeScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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import { assertEquals, assertThrows, fail } from "@std/assert/mod.ts";
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import { ftruncate, ftruncateSync } from "node:fs";
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Deno.test({
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name: "ASYNC: no callback function results in Error",
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fn() {
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assertThrows(
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() => {
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// @ts-expect-error Argument of type 'number' is not assignable to parameter of type 'NoParamCallback'
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ftruncate(123, 0);
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},
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Error,
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"No callback function supplied",
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);
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},
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});
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Deno.test({
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name: "ASYNC: truncate entire file contents",
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async fn() {
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const filePath = Deno.makeTempFileSync();
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await Deno.writeTextFile(filePath, "hello world");
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using file = await Deno.open(filePath, {
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read: true,
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write: true,
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create: true,
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});
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await new Promise<void>((resolve, reject) => {
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ftruncate(file.rid, (err: Error | null) => {
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if (err !== null) reject();
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else resolve();
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});
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})
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.then(
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() => {
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const fileInfo: Deno.FileInfo = Deno.lstatSync(filePath);
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assertEquals(fileInfo.size, 0);
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},
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() => {
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fail("No error expected");
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},
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)
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.finally(() => {
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Deno.removeSync(filePath);
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});
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},
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});
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Deno.test({
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name: "ASYNC: truncate file to a size of precisely len bytes",
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async fn() {
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const filePath = Deno.makeTempFileSync();
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await Deno.writeTextFile(filePath, "hello world");
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using file = await Deno.open(filePath, {
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read: true,
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write: true,
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create: true,
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});
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await new Promise<void>((resolve, reject) => {
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ftruncate(file.rid, 3, (err: Error | null) => {
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if (err !== null) reject();
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else resolve();
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});
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})
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.then(
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() => {
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const fileInfo: Deno.FileInfo = Deno.lstatSync(filePath);
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assertEquals(fileInfo.size, 3);
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},
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() => {
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fail("No error expected");
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},
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)
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.finally(() => {
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Deno.removeSync(filePath);
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});
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},
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});
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Deno.test({
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name: "SYNC: truncate entire file contents",
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fn() {
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const filePath = Deno.makeTempFileSync();
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Deno.writeFileSync(filePath, new TextEncoder().encode("hello world"));
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using file = Deno.openSync(filePath, {
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read: true,
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write: true,
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create: true,
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});
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try {
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ftruncateSync(file.rid);
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const fileInfo: Deno.FileInfo = Deno.lstatSync(filePath);
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assertEquals(fileInfo.size, 0);
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} finally {
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Deno.removeSync(filePath);
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}
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},
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});
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Deno.test({
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name: "SYNC: truncate file to a size of precisely len bytes",
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fn() {
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const filePath = Deno.makeTempFileSync();
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Deno.writeFileSync(filePath, new TextEncoder().encode("hello world"));
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using file = Deno.openSync(filePath, {
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read: true,
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write: true,
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create: true,
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});
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try {
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ftruncateSync(file.rid, 3);
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const fileInfo: Deno.FileInfo = Deno.lstatSync(filePath);
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assertEquals(fileInfo.size, 3);
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} finally {
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Deno.removeSync(filePath);
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}
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},
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});
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