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8d96dffa41
Rewrite "testPerm" helper function used for testing of internal runtime code. It's been renamed to "unitTest" and provides API that is extensible in the future by accepting optional "UnitTestOptions" argument. "test" helper was also removed and replaced by overloaded version of "unitTest" that takes only function argument. "UnitTestOptions" currently supports "perms" and "skip" options, where former works exactly as first argument to "testPerm" did, while the latter allows to conditionally skip tests.
80 lines
2.3 KiB
TypeScript
80 lines
2.3 KiB
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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import { unitTest, assertEquals, assert } from "./test_util.ts";
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function readDataSync(name: string): string {
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const data = Deno.readFileSync(name);
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const decoder = new TextDecoder("utf-8");
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const text = decoder.decode(data);
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return text;
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}
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async function readData(name: string): Promise<string> {
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const data = await Deno.readFile(name);
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const decoder = new TextDecoder("utf-8");
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const text = decoder.decode(data);
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return text;
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}
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unitTest(
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{ perms: { read: true, write: true } },
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function truncateSyncSuccess(): void {
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const enc = new TextEncoder();
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const d = enc.encode("Hello");
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const filename = Deno.makeTempDirSync() + "/test_truncateSync.txt";
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Deno.writeFileSync(filename, d);
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Deno.truncateSync(filename, 20);
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let data = readDataSync(filename);
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assertEquals(data.length, 20);
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Deno.truncateSync(filename, 5);
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data = readDataSync(filename);
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assertEquals(data.length, 5);
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Deno.truncateSync(filename, -5);
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data = readDataSync(filename);
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assertEquals(data.length, 0);
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Deno.removeSync(filename);
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}
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);
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unitTest(
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{ perms: { read: true, write: true } },
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async function truncateSuccess(): Promise<void> {
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const enc = new TextEncoder();
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const d = enc.encode("Hello");
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const filename = Deno.makeTempDirSync() + "/test_truncate.txt";
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await Deno.writeFile(filename, d);
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await Deno.truncate(filename, 20);
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let data = await readData(filename);
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assertEquals(data.length, 20);
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await Deno.truncate(filename, 5);
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data = await readData(filename);
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assertEquals(data.length, 5);
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await Deno.truncate(filename, -5);
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data = await readData(filename);
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assertEquals(data.length, 0);
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await Deno.remove(filename);
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}
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);
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unitTest({ perms: { write: false } }, function truncateSyncPerm(): void {
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let err;
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try {
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Deno.mkdirSync("/test_truncateSyncPermission.txt");
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} catch (e) {
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err = e;
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}
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assert(err instanceof Deno.errors.PermissionDenied);
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assertEquals(err.name, "PermissionDenied");
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});
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unitTest({ perms: { write: false } }, async function truncatePerm(): Promise<
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void
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> {
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let err;
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try {
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await Deno.mkdir("/test_truncatePermission.txt");
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} catch (e) {
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err = e;
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}
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assert(err instanceof Deno.errors.PermissionDenied);
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assertEquals(err.name, "PermissionDenied");
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});
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