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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
import { testPerm, assert, assertEqual } from "./test_util.ts";
import * as deno from "deno";
function readFileString(filename: string): string {
const dataRead = deno.readFileSync(filename);
const dec = new TextDecoder("utf-8");
return dec.decode(dataRead);
}
function writeFileString(filename: string, s: string) {
const enc = new TextEncoder();
const data = enc.encode(s);
deno.writeFileSync(filename, data, 0o666);
}
function assertSameContent(filename1: string, filename2: string) {
const data1 = deno.readFileSync(filename1);
const data2 = deno.readFileSync(filename2);
assertEqual(data1, data2);
}
testPerm({ write: true }, function copyFileSyncSuccess() {
const tempDir = deno.makeTempDirSync();
const fromFilename = tempDir + "/from.txt";
const toFilename = tempDir + "/to.txt";
writeFileString(fromFilename, "Hello world!");
deno.copyFileSync(fromFilename, toFilename);
// No change to original file
assertEqual(readFileString(fromFilename), "Hello world!");
// Original == Dest
assertSameContent(fromFilename, toFilename);
});
testPerm({ write: true }, function copyFileSyncFailure() {
const tempDir = deno.makeTempDirSync();
const fromFilename = tempDir + "/from.txt";
const toFilename = tempDir + "/to.txt";
// We skip initial writing here, from.txt does not exist
let err;
try {
deno.copyFileSync(fromFilename, toFilename);
} catch (e) {
err = e;
}
assert(!!err);
assertEqual(err.kind, deno.ErrorKind.NotFound);
assertEqual(err.name, "NotFound");
});
testPerm({ write: true }, function copyFileSyncOverwrite() {
const tempDir = deno.makeTempDirSync();
const fromFilename = tempDir + "/from.txt";
const toFilename = tempDir + "/to.txt";
writeFileString(fromFilename, "Hello world!");
// Make Dest exist and have different content
writeFileString(toFilename, "Goodbye!");
deno.copyFileSync(fromFilename, toFilename);
// No change to original file
assertEqual(readFileString(fromFilename), "Hello world!");
// Original == Dest
assertSameContent(fromFilename, toFilename);
});
testPerm({ write: false }, function copyFileSyncPerm() {
let err;
try {
deno.copyFileSync("/from.txt", "/to.txt");
} catch (e) {
err = e;
}
assert(!!err);
assertEqual(err.kind, deno.ErrorKind.PermissionDenied);
assertEqual(err.name, "PermissionDenied");
});
testPerm({ write: true }, async function copyFileSuccess() {
const tempDir = deno.makeTempDirSync();
const fromFilename = tempDir + "/from.txt";
const toFilename = tempDir + "/to.txt";
writeFileString(fromFilename, "Hello world!");
await deno.copyFile(fromFilename, toFilename);
// No change to original file
assertEqual(readFileString(fromFilename), "Hello world!");
// Original == Dest
assertSameContent(fromFilename, toFilename);
});
testPerm({ write: true }, async function copyFileFailure() {
const tempDir = deno.makeTempDirSync();
const fromFilename = tempDir + "/from.txt";
const toFilename = tempDir + "/to.txt";
// We skip initial writing here, from.txt does not exist
let err;
try {
await deno.copyFile(fromFilename, toFilename);
} catch (e) {
err = e;
}
assert(!!err);
assertEqual(err.kind, deno.ErrorKind.NotFound);
assertEqual(err.name, "NotFound");
});
testPerm({ write: true }, async function copyFileOverwrite() {
const tempDir = deno.makeTempDirSync();
const fromFilename = tempDir + "/from.txt";
const toFilename = tempDir + "/to.txt";
writeFileString(fromFilename, "Hello world!");
// Make Dest exist and have different content
writeFileString(toFilename, "Goodbye!");
await deno.copyFile(fromFilename, toFilename);
// No change to original file
assertEqual(readFileString(fromFilename), "Hello world!");
// Original == Dest
assertSameContent(fromFilename, toFilename);
});
testPerm({ write: false }, async function copyFilePerm() {
let err;
try {
await deno.copyFile("/from.txt", "/to.txt");
} catch (e) {
err = e;
}
assert(!!err);
assertEqual(err.kind, deno.ErrorKind.PermissionDenied);
assertEqual(err.name, "PermissionDenied");
});
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