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104 lines
3.8 KiB
TypeScript
104 lines
3.8 KiB
TypeScript
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
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import { test, testPerm, assert, assertEquals } from "./test_util.ts";
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testPerm({ read: true, write: true }, function linkSyncSuccess(): void {
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const testDir = Deno.makeTempDirSync();
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const oldData = "Hardlink";
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const oldName = testDir + "/oldname";
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const newName = testDir + "/newname";
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Deno.writeFileSync(oldName, new TextEncoder().encode(oldData));
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// Create the hard link.
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Deno.linkSync(oldName, newName);
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// We should expect reading the same content.
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const newData = new TextDecoder().decode(Deno.readFileSync(newName));
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assertEquals(oldData, newData);
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// Writing to newname also affects oldname.
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const newData2 = "Modified";
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Deno.writeFileSync(newName, new TextEncoder().encode(newData2));
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assertEquals(newData2, new TextDecoder().decode(Deno.readFileSync(oldName)));
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// Writing to oldname also affects newname.
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const newData3 = "ModifiedAgain";
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Deno.writeFileSync(oldName, new TextEncoder().encode(newData3));
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assertEquals(newData3, new TextDecoder().decode(Deno.readFileSync(newName)));
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// Remove oldname. File still accessible through newname.
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Deno.removeSync(oldName);
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const newNameStat = Deno.statSync(newName);
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assert(newNameStat.isFile());
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assert(!newNameStat.isSymlink()); // Not a symlink.
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assertEquals(newData3, new TextDecoder().decode(Deno.readFileSync(newName)));
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});
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testPerm({ read: true, write: true }, function linkSyncExists(): void {
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const testDir = Deno.makeTempDirSync();
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const oldName = testDir + "/oldname";
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const newName = testDir + "/newname";
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Deno.writeFileSync(oldName, new TextEncoder().encode("oldName"));
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// newname is already created.
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Deno.writeFileSync(newName, new TextEncoder().encode("newName"));
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let err;
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try {
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Deno.linkSync(oldName, newName);
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} catch (e) {
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err = e;
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}
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assert(!!err);
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assertEquals(err.kind, Deno.ErrorKind.AlreadyExists);
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assertEquals(err.name, "AlreadyExists");
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});
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testPerm({ read: true, write: true }, function linkSyncNotFound(): void {
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const testDir = Deno.makeTempDirSync();
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const oldName = testDir + "/oldname";
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const newName = testDir + "/newname";
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let err;
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try {
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Deno.linkSync(oldName, newName);
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} catch (e) {
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err = e;
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}
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assert(!!err);
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assertEquals(err.kind, Deno.ErrorKind.NotFound);
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assertEquals(err.name, "NotFound");
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});
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test(function linkSyncPerm(): void {
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let err;
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try {
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Deno.linkSync("oldbaddir", "newbaddir");
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} catch (e) {
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err = e;
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}
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assertEquals(err.kind, Deno.ErrorKind.PermissionDenied);
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assertEquals(err.name, "PermissionDenied");
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});
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testPerm({ read: true, write: true }, async function linkSuccess(): Promise<
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void
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> {
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const testDir = Deno.makeTempDirSync();
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const oldData = "Hardlink";
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const oldName = testDir + "/oldname";
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const newName = testDir + "/newname";
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Deno.writeFileSync(oldName, new TextEncoder().encode(oldData));
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// Create the hard link.
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await Deno.link(oldName, newName);
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// We should expect reading the same content.
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const newData = new TextDecoder().decode(Deno.readFileSync(newName));
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assertEquals(oldData, newData);
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// Writing to newname also affects oldname.
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const newData2 = "Modified";
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Deno.writeFileSync(newName, new TextEncoder().encode(newData2));
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assertEquals(newData2, new TextDecoder().decode(Deno.readFileSync(oldName)));
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// Writing to oldname also affects newname.
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const newData3 = "ModifiedAgain";
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Deno.writeFileSync(oldName, new TextEncoder().encode(newData3));
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assertEquals(newData3, new TextDecoder().decode(Deno.readFileSync(newName)));
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// Remove oldname. File still accessible through newname.
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Deno.removeSync(oldName);
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const newNameStat = Deno.statSync(newName);
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assert(newNameStat.isFile());
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assert(!newNameStat.isSymlink()); // Not a symlink.
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assertEquals(newData3, new TextDecoder().decode(Deno.readFileSync(newName)));
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});
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