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denoland-deno/std/fs/ensure_link_test.ts

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2020-01-02 15:13:47 -05:00
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
// TODO(axetroy): Add test for Windows once symlink is implemented for Windows.
import {
assertEquals,
assertThrows,
assertThrowsAsync,
} from "../testing/asserts.ts";
import * as path from "../path/mod.ts";
import { ensureLink, ensureLinkSync } from "./ensure_link.ts";
const testdataDir = path.resolve("fs", "testdata");
Deno.test("ensureLinkIfItNotExist", async function (): Promise<void> {
const srcDir = path.join(testdataDir, "ensure_link_1");
const destDir = path.join(testdataDir, "ensure_link_1_2");
const testFile = path.join(srcDir, "test.txt");
const linkFile = path.join(destDir, "link.txt");
await assertThrowsAsync(
async (): Promise<void> => {
await ensureLink(testFile, linkFile);
}
);
await Deno.remove(destDir, { recursive: true });
});
Deno.test("ensureLinkSyncIfItNotExist", function (): void {
const testDir = path.join(testdataDir, "ensure_link_2");
const testFile = path.join(testDir, "test.txt");
const linkFile = path.join(testDir, "link.txt");
assertThrows((): void => {
ensureLinkSync(testFile, linkFile);
});
Deno.removeSync(testDir, { recursive: true });
});
Deno.test("ensureLinkIfItExist", async function (): Promise<void> {
const testDir = path.join(testdataDir, "ensure_link_3");
const testFile = path.join(testDir, "test.txt");
const linkFile = path.join(testDir, "link.txt");
await Deno.mkdir(testDir, { recursive: true });
await Deno.writeFile(testFile, new Uint8Array());
await ensureLink(testFile, linkFile);
const srcStat = await Deno.lstat(testFile);
const linkStat = await Deno.lstat(linkFile);
assertEquals(srcStat.isFile, true);
assertEquals(linkStat.isFile, true);
// har link success. try to change one of them. they should be change both.
// let's change origin file.
await Deno.writeFile(testFile, new TextEncoder().encode("123"));
const testFileContent1 = new TextDecoder().decode(
await Deno.readFile(testFile)
);
const linkFileContent1 = new TextDecoder().decode(
await Deno.readFile(testFile)
);
assertEquals(testFileContent1, "123");
assertEquals(testFileContent1, linkFileContent1);
// let's change link file.
await Deno.writeFile(testFile, new TextEncoder().encode("abc"));
const testFileContent2 = new TextDecoder().decode(
await Deno.readFile(testFile)
);
const linkFileContent2 = new TextDecoder().decode(
await Deno.readFile(testFile)
);
assertEquals(testFileContent2, "abc");
assertEquals(testFileContent2, linkFileContent2);
await Deno.remove(testDir, { recursive: true });
});
Deno.test("ensureLinkSyncIfItExist", function (): void {
const testDir = path.join(testdataDir, "ensure_link_4");
const testFile = path.join(testDir, "test.txt");
const linkFile = path.join(testDir, "link.txt");
Deno.mkdirSync(testDir, { recursive: true });
Deno.writeFileSync(testFile, new Uint8Array());
ensureLinkSync(testFile, linkFile);
const srcStat = Deno.lstatSync(testFile);
const linkStat = Deno.lstatSync(linkFile);
assertEquals(srcStat.isFile, true);
assertEquals(linkStat.isFile, true);
// har link success. try to change one of them. they should be change both.
// let's change origin file.
Deno.writeFileSync(testFile, new TextEncoder().encode("123"));
const testFileContent1 = new TextDecoder().decode(
Deno.readFileSync(testFile)
);
const linkFileContent1 = new TextDecoder().decode(
Deno.readFileSync(testFile)
);
assertEquals(testFileContent1, "123");
assertEquals(testFileContent1, linkFileContent1);
// let's change link file.
Deno.writeFileSync(testFile, new TextEncoder().encode("abc"));
const testFileContent2 = new TextDecoder().decode(
Deno.readFileSync(testFile)
);
const linkFileContent2 = new TextDecoder().decode(
Deno.readFileSync(testFile)
);
assertEquals(testFileContent2, "abc");
assertEquals(testFileContent2, linkFileContent2);
Deno.removeSync(testDir, { recursive: true });
});
Deno.test("ensureLinkDirectoryIfItExist", async function (): Promise<void> {
const testDir = path.join(testdataDir, "ensure_link_origin_3");
const linkDir = path.join(testdataDir, "ensure_link_link_3");
const testFile = path.join(testDir, "test.txt");
await Deno.mkdir(testDir, { recursive: true });
await Deno.writeFile(testFile, new Uint8Array());
await assertThrowsAsync(
async (): Promise<void> => {
await ensureLink(testDir, linkDir);
}
// "Operation not permitted (os error 1)" // throw an local matching test
// "Access is denied. (os error 5)" // throw in CI
);
Deno.removeSync(testDir, { recursive: true });
});
Deno.test("ensureLinkSyncDirectoryIfItExist", function (): void {
const testDir = path.join(testdataDir, "ensure_link_origin_3");
const linkDir = path.join(testdataDir, "ensure_link_link_3");
const testFile = path.join(testDir, "test.txt");
Deno.mkdirSync(testDir, { recursive: true });
Deno.writeFileSync(testFile, new Uint8Array());
assertThrows(
(): void => {
ensureLinkSync(testDir, linkDir);
}
// "Operation not permitted (os error 1)" // throw an local matching test
// "Access is denied. (os error 5)" // throw in CI
);
Deno.removeSync(testDir, { recursive: true });
});