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c42a9d7370
A major API change was that asserts are imported from testing/asserts.ts now rather than testing/mod.ts and assertEqual as renamed to assertEquals to conform to what is most common in JavaScript.
204 lines
7 KiB
TypeScript
204 lines
7 KiB
TypeScript
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
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import { testPerm, assert, assertEquals } from "./test_util.ts";
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testPerm({ read: true, write: true }, function writeFileSyncSuccess() {
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const enc = new TextEncoder();
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const data = enc.encode("Hello");
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const filename = Deno.makeTempDirSync() + "/test.txt";
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Deno.writeFileSync(filename, data);
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const dataRead = Deno.readFileSync(filename);
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const dec = new TextDecoder("utf-8");
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const actual = dec.decode(dataRead);
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assertEquals("Hello", actual);
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});
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testPerm({ write: true }, function writeFileSyncFail() {
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const enc = new TextEncoder();
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const data = enc.encode("Hello");
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const filename = "/baddir/test.txt";
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// The following should fail because /baddir doesn't exist (hopefully).
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let caughtError = false;
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try {
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Deno.writeFileSync(filename, data);
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} catch (e) {
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caughtError = true;
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assertEquals(e.kind, Deno.ErrorKind.NotFound);
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assertEquals(e.name, "NotFound");
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}
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assert(caughtError);
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});
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testPerm({ write: false }, function writeFileSyncPerm() {
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const enc = new TextEncoder();
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const data = enc.encode("Hello");
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const filename = "/baddir/test.txt";
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// The following should fail due to no write permission
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let caughtError = false;
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try {
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Deno.writeFileSync(filename, data);
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} catch (e) {
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caughtError = true;
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assertEquals(e.kind, Deno.ErrorKind.PermissionDenied);
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assertEquals(e.name, "PermissionDenied");
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}
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assert(caughtError);
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});
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testPerm({ read: true, write: true }, function writeFileSyncUpdatePerm() {
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if (Deno.build.os !== "win") {
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const enc = new TextEncoder();
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const data = enc.encode("Hello");
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const filename = Deno.makeTempDirSync() + "/test.txt";
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Deno.writeFileSync(filename, data, { perm: 0o755 });
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assertEquals(Deno.statSync(filename).mode & 0o777, 0o755);
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Deno.writeFileSync(filename, data, { perm: 0o666 });
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assertEquals(Deno.statSync(filename).mode & 0o777, 0o666);
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}
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});
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testPerm({ read: true, write: true }, function writeFileSyncCreate() {
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const enc = new TextEncoder();
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const data = enc.encode("Hello");
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const filename = Deno.makeTempDirSync() + "/test.txt";
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let caughtError = false;
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// if create turned off, the file won't be created
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try {
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Deno.writeFileSync(filename, data, { create: false });
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} catch (e) {
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caughtError = true;
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assertEquals(e.kind, Deno.ErrorKind.NotFound);
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assertEquals(e.name, "NotFound");
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}
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assert(caughtError);
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// Turn on create, should have no error
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Deno.writeFileSync(filename, data, { create: true });
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Deno.writeFileSync(filename, data, { create: false });
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const dataRead = Deno.readFileSync(filename);
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const dec = new TextDecoder("utf-8");
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const actual = dec.decode(dataRead);
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assertEquals("Hello", actual);
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});
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testPerm({ read: true, write: true }, function writeFileSyncAppend() {
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const enc = new TextEncoder();
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const data = enc.encode("Hello");
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const filename = Deno.makeTempDirSync() + "/test.txt";
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Deno.writeFileSync(filename, data);
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Deno.writeFileSync(filename, data, { append: true });
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let dataRead = Deno.readFileSync(filename);
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const dec = new TextDecoder("utf-8");
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let actual = dec.decode(dataRead);
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assertEquals("HelloHello", actual);
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// Now attempt overwrite
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Deno.writeFileSync(filename, data, { append: false });
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dataRead = Deno.readFileSync(filename);
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actual = dec.decode(dataRead);
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assertEquals("Hello", actual);
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// append not set should also overwrite
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Deno.writeFileSync(filename, data);
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dataRead = Deno.readFileSync(filename);
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actual = dec.decode(dataRead);
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assertEquals("Hello", actual);
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});
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testPerm({ read: true, write: true }, async function writeFileSuccess() {
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const enc = new TextEncoder();
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const data = enc.encode("Hello");
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const filename = Deno.makeTempDirSync() + "/test.txt";
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await Deno.writeFile(filename, data);
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const dataRead = Deno.readFileSync(filename);
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const dec = new TextDecoder("utf-8");
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const actual = dec.decode(dataRead);
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assertEquals("Hello", actual);
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});
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testPerm({ read: true, write: true }, async function writeFileNotFound() {
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const enc = new TextEncoder();
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const data = enc.encode("Hello");
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const filename = "/baddir/test.txt";
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// The following should fail because /baddir doesn't exist (hopefully).
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let caughtError = false;
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try {
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await Deno.writeFile(filename, data);
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} catch (e) {
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caughtError = true;
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assertEquals(e.kind, Deno.ErrorKind.NotFound);
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assertEquals(e.name, "NotFound");
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}
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assert(caughtError);
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});
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testPerm({ read: true, write: false }, async function writeFilePerm() {
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const enc = new TextEncoder();
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const data = enc.encode("Hello");
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const filename = "/baddir/test.txt";
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// The following should fail due to no write permission
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let caughtError = false;
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try {
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await Deno.writeFile(filename, data);
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} catch (e) {
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caughtError = true;
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assertEquals(e.kind, Deno.ErrorKind.PermissionDenied);
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assertEquals(e.name, "PermissionDenied");
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}
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assert(caughtError);
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});
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testPerm({ read: true, write: true }, async function writeFileUpdatePerm() {
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if (Deno.build.os !== "win") {
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const enc = new TextEncoder();
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const data = enc.encode("Hello");
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const filename = Deno.makeTempDirSync() + "/test.txt";
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await Deno.writeFile(filename, data, { perm: 0o755 });
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assertEquals(Deno.statSync(filename).mode & 0o777, 0o755);
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await Deno.writeFile(filename, data, { perm: 0o666 });
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assertEquals(Deno.statSync(filename).mode & 0o777, 0o666);
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}
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});
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testPerm({ read: true, write: true }, async function writeFileCreate() {
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const enc = new TextEncoder();
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const data = enc.encode("Hello");
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const filename = Deno.makeTempDirSync() + "/test.txt";
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let caughtError = false;
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// if create turned off, the file won't be created
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try {
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await Deno.writeFile(filename, data, { create: false });
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} catch (e) {
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caughtError = true;
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assertEquals(e.kind, Deno.ErrorKind.NotFound);
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assertEquals(e.name, "NotFound");
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}
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assert(caughtError);
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// Turn on create, should have no error
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await Deno.writeFile(filename, data, { create: true });
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await Deno.writeFile(filename, data, { create: false });
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const dataRead = Deno.readFileSync(filename);
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const dec = new TextDecoder("utf-8");
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const actual = dec.decode(dataRead);
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assertEquals("Hello", actual);
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});
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testPerm({ read: true, write: true }, async function writeFileAppend() {
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const enc = new TextEncoder();
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const data = enc.encode("Hello");
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const filename = Deno.makeTempDirSync() + "/test.txt";
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await Deno.writeFile(filename, data);
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await Deno.writeFile(filename, data, { append: true });
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let dataRead = Deno.readFileSync(filename);
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const dec = new TextDecoder("utf-8");
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let actual = dec.decode(dataRead);
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assertEquals("HelloHello", actual);
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// Now attempt overwrite
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await Deno.writeFile(filename, data, { append: false });
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dataRead = Deno.readFileSync(filename);
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actual = dec.decode(dataRead);
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assertEquals("Hello", actual);
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// append not set should also overwrite
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await Deno.writeFile(filename, data);
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dataRead = Deno.readFileSync(filename);
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actual = dec.decode(dataRead);
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assertEquals("Hello", actual);
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});
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