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denoland-deno/std/fs/copy_test.ts
2020-05-19 00:46:02 +02:00

514 lines
14 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import {
assertEquals,
assertThrows,
assertThrowsAsync,
assert,
} from "../testing/asserts.ts";
import * as path from "../path/mod.ts";
import { copy, copySync } from "./copy.ts";
import { exists, existsSync } from "./exists.ts";
import { ensureDir, ensureDirSync } from "./ensure_dir.ts";
import { ensureFile, ensureFileSync } from "./ensure_file.ts";
import { ensureSymlink, ensureSymlinkSync } from "./ensure_symlink.ts";
const testdataDir = path.resolve("fs", "testdata");
function testCopy(name: string, cb: (tempDir: string) => Promise<void>): void {
Deno.test({
name,
async fn(): Promise<void> {
const tempDir = await Deno.makeTempDir({
prefix: "deno_std_copy_async_test_",
});
await cb(tempDir);
await Deno.remove(tempDir, { recursive: true });
},
});
}
function testCopySync(name: string, cb: (tempDir: string) => void): void {
Deno.test({
name,
fn: (): void => {
const tempDir = Deno.makeTempDirSync({
prefix: "deno_std_copy_sync_test_",
});
cb(tempDir);
Deno.removeSync(tempDir, { recursive: true });
},
});
}
testCopy(
"[fs] copy file if it does no exist",
async (tempDir: string): Promise<void> => {
const srcFile = path.join(testdataDir, "copy_file_not_exists.txt");
const destFile = path.join(tempDir, "copy_file_not_exists_1.txt");
await assertThrowsAsync(
async (): Promise<void> => {
await copy(srcFile, destFile);
}
);
}
);
testCopy(
"[fs] copy if src and dest are the same paths",
async (tempDir: string): Promise<void> => {
const srcFile = path.join(tempDir, "copy_file_same.txt");
const destFile = path.join(tempDir, "copy_file_same.txt");
await assertThrowsAsync(
async (): Promise<void> => {
await copy(srcFile, destFile);
},
Error,
"Source and destination cannot be the same."
);
}
);
testCopy(
"[fs] copy file",
async (tempDir: string): Promise<void> => {
const srcFile = path.join(testdataDir, "copy_file.txt");
const destFile = path.join(tempDir, "copy_file_copy.txt");
const srcContent = new TextDecoder().decode(await Deno.readFile(srcFile));
assertEquals(
await exists(srcFile),
true,
`source should exist before copy`
);
assertEquals(
await exists(destFile),
false,
"destination should not exist before copy"
);
await copy(srcFile, destFile);
assertEquals(await exists(srcFile), true, "source should exist after copy");
assertEquals(
await exists(destFile),
true,
"destination should exist before copy"
);
const destContent = new TextDecoder().decode(await Deno.readFile(destFile));
assertEquals(
srcContent,
destContent,
"source and destination should have the same content"
);
// Copy again and it should throw an error.
await assertThrowsAsync(
async (): Promise<void> => {
await copy(srcFile, destFile);
},
Error,
`'${destFile}' already exists.`
);
// Modify destination file.
await Deno.writeFile(destFile, new TextEncoder().encode("txt copy"));
assertEquals(
new TextDecoder().decode(await Deno.readFile(destFile)),
"txt copy"
);
// Copy again with overwrite option.
await copy(srcFile, destFile, { overwrite: true });
// Make sure the file has been overwritten.
assertEquals(
new TextDecoder().decode(await Deno.readFile(destFile)),
"txt"
);
}
);
testCopy(
"[fs] copy with preserve timestamps",
async (tempDir: string): Promise<void> => {
const srcFile = path.join(testdataDir, "copy_file.txt");
const destFile = path.join(tempDir, "copy_file_copy.txt");
const srcStatInfo = await Deno.stat(srcFile);
assert(srcStatInfo.atime instanceof Date);
assert(srcStatInfo.mtime instanceof Date);
// Copy with overwrite and preserve timestamps options.
await copy(srcFile, destFile, {
overwrite: true,
preserveTimestamps: true,
});
const destStatInfo = await Deno.stat(destFile);
assert(destStatInfo.atime instanceof Date);
assert(destStatInfo.mtime instanceof Date);
assertEquals(destStatInfo.atime, srcStatInfo.atime);
assertEquals(destStatInfo.mtime, srcStatInfo.mtime);
}
);
testCopy(
"[fs] copy directory to its subdirectory",
async (tempDir: string): Promise<void> => {
const srcDir = path.join(tempDir, "parent");
const destDir = path.join(srcDir, "child");
await ensureDir(srcDir);
await assertThrowsAsync(
async (): Promise<void> => {
await copy(srcDir, destDir);
},
Error,
`Cannot copy '${srcDir}' to a subdirectory of itself, '${destDir}'.`
);
}
);
testCopy(
"[fs] copy directory and destination exist and not a directory",
async (tempDir: string): Promise<void> => {
const srcDir = path.join(tempDir, "parent");
const destDir = path.join(tempDir, "child.txt");
await ensureDir(srcDir);
await ensureFile(destDir);
await assertThrowsAsync(
async (): Promise<void> => {
await copy(srcDir, destDir);
},
Error,
`Cannot overwrite non-directory '${destDir}' with directory '${srcDir}'.`
);
}
);
testCopy(
"[fs] copy directory",
async (tempDir: string): Promise<void> => {
const srcDir = path.join(testdataDir, "copy_dir");
const destDir = path.join(tempDir, "copy_dir");
const srcFile = path.join(srcDir, "0.txt");
const destFile = path.join(destDir, "0.txt");
const srcNestFile = path.join(srcDir, "nest", "0.txt");
const destNestFile = path.join(destDir, "nest", "0.txt");
await copy(srcDir, destDir);
assertEquals(await exists(destFile), true);
assertEquals(await exists(destNestFile), true);
// After copy. The source and destination should have the same content.
assertEquals(
new TextDecoder().decode(await Deno.readFile(srcFile)),
new TextDecoder().decode(await Deno.readFile(destFile))
);
assertEquals(
new TextDecoder().decode(await Deno.readFile(srcNestFile)),
new TextDecoder().decode(await Deno.readFile(destNestFile))
);
// Copy again without overwrite option and it should throw an error.
await assertThrowsAsync(
async (): Promise<void> => {
await copy(srcDir, destDir);
},
Error,
`'${destDir}' already exists.`
);
// Modify the file in the destination directory.
await Deno.writeFile(destNestFile, new TextEncoder().encode("nest copy"));
assertEquals(
new TextDecoder().decode(await Deno.readFile(destNestFile)),
"nest copy"
);
// Copy again with overwrite option.
await copy(srcDir, destDir, { overwrite: true });
// Make sure the file has been overwritten.
assertEquals(
new TextDecoder().decode(await Deno.readFile(destNestFile)),
"nest"
);
}
);
testCopy(
"[fs] copy symlink file",
async (tempDir: string): Promise<void> => {
const dir = path.join(testdataDir, "copy_dir_link_file");
const srcLink = path.join(dir, "0.txt");
const destLink = path.join(tempDir, "0_copy.txt");
assert(
(await Deno.lstat(srcLink)).isSymlink,
`'${srcLink}' should be symlink type`
);
await copy(srcLink, destLink);
const statInfo = await Deno.lstat(destLink);
assert(statInfo.isSymlink, `'${destLink}' should be symlink type`);
}
);
testCopy(
"[fs] copy symlink directory",
async (tempDir: string): Promise<void> => {
const srcDir = path.join(testdataDir, "copy_dir");
const srcLink = path.join(tempDir, "copy_dir_link");
const destLink = path.join(tempDir, "copy_dir_link_copy");
await ensureSymlink(srcDir, srcLink);
assert(
(await Deno.lstat(srcLink)).isSymlink,
`'${srcLink}' should be symlink type`
);
await copy(srcLink, destLink);
const statInfo = await Deno.lstat(destLink);
assert(statInfo.isSymlink);
}
);
testCopySync(
"[fs] copy file synchronously if it does not exist",
(tempDir: string): void => {
const srcFile = path.join(testdataDir, "copy_file_not_exists_sync.txt");
const destFile = path.join(tempDir, "copy_file_not_exists_1_sync.txt");
assertThrows((): void => {
copySync(srcFile, destFile);
});
}
);
testCopySync(
"[fs] copy synchronously with preserve timestamps",
(tempDir: string): void => {
const srcFile = path.join(testdataDir, "copy_file.txt");
const destFile = path.join(tempDir, "copy_file_copy.txt");
const srcStatInfo = Deno.statSync(srcFile);
assert(srcStatInfo.atime instanceof Date);
assert(srcStatInfo.mtime instanceof Date);
// Copy with overwrite and preserve timestamps options.
copySync(srcFile, destFile, {
overwrite: true,
preserveTimestamps: true,
});
const destStatInfo = Deno.statSync(destFile);
assert(destStatInfo.atime instanceof Date);
assert(destStatInfo.mtime instanceof Date);
// TODO: Activate test when https://github.com/denoland/deno/issues/2411
// is fixed
// assertEquals(destStatInfo.atime, srcStatInfo.atime);
// assertEquals(destStatInfo.mtime, srcStatInfo.mtime);
}
);
testCopySync(
"[fs] copy synchronously if src and dest are the same paths",
(): void => {
const srcFile = path.join(testdataDir, "copy_file_same_sync.txt");
assertThrows(
(): void => {
copySync(srcFile, srcFile);
},
Error,
"Source and destination cannot be the same."
);
}
);
testCopySync("[fs] copy file synchronously", (tempDir: string): void => {
const srcFile = path.join(testdataDir, "copy_file.txt");
const destFile = path.join(tempDir, "copy_file_copy_sync.txt");
const srcContent = new TextDecoder().decode(Deno.readFileSync(srcFile));
assertEquals(existsSync(srcFile), true);
assertEquals(existsSync(destFile), false);
copySync(srcFile, destFile);
assertEquals(existsSync(srcFile), true);
assertEquals(existsSync(destFile), true);
const destContent = new TextDecoder().decode(Deno.readFileSync(destFile));
assertEquals(srcContent, destContent);
// Copy again without overwrite option and it should throw an error.
assertThrows(
(): void => {
copySync(srcFile, destFile);
},
Error,
`'${destFile}' already exists.`
);
// Modify destination file.
Deno.writeFileSync(destFile, new TextEncoder().encode("txt copy"));
assertEquals(
new TextDecoder().decode(Deno.readFileSync(destFile)),
"txt copy"
);
// Copy again with overwrite option.
copySync(srcFile, destFile, { overwrite: true });
// Make sure the file has been overwritten.
assertEquals(new TextDecoder().decode(Deno.readFileSync(destFile)), "txt");
});
testCopySync(
"[fs] copy directory synchronously to its subdirectory",
(tempDir: string): void => {
const srcDir = path.join(tempDir, "parent");
const destDir = path.join(srcDir, "child");
ensureDirSync(srcDir);
assertThrows(
(): void => {
copySync(srcDir, destDir);
},
Error,
`Cannot copy '${srcDir}' to a subdirectory of itself, '${destDir}'.`
);
}
);
testCopySync(
"[fs] copy directory synchronously, and destination exist and not a " +
"directory",
(tempDir: string): void => {
const srcDir = path.join(tempDir, "parent_sync");
const destDir = path.join(tempDir, "child.txt");
ensureDirSync(srcDir);
ensureFileSync(destDir);
assertThrows(
(): void => {
copySync(srcDir, destDir);
},
Error,
`Cannot overwrite non-directory '${destDir}' with directory '${srcDir}'.`
);
}
);
testCopySync("[fs] copy directory synchronously", (tempDir: string): void => {
const srcDir = path.join(testdataDir, "copy_dir");
const destDir = path.join(tempDir, "copy_dir_copy_sync");
const srcFile = path.join(srcDir, "0.txt");
const destFile = path.join(destDir, "0.txt");
const srcNestFile = path.join(srcDir, "nest", "0.txt");
const destNestFile = path.join(destDir, "nest", "0.txt");
copySync(srcDir, destDir);
assertEquals(existsSync(destFile), true);
assertEquals(existsSync(destNestFile), true);
// After copy. The source and destination should have the same content.
assertEquals(
new TextDecoder().decode(Deno.readFileSync(srcFile)),
new TextDecoder().decode(Deno.readFileSync(destFile))
);
assertEquals(
new TextDecoder().decode(Deno.readFileSync(srcNestFile)),
new TextDecoder().decode(Deno.readFileSync(destNestFile))
);
// Copy again without overwrite option and it should throw an error.
assertThrows(
(): void => {
copySync(srcDir, destDir);
},
Error,
`'${destDir}' already exists.`
);
// Modify the file in the destination directory.
Deno.writeFileSync(destNestFile, new TextEncoder().encode("nest copy"));
assertEquals(
new TextDecoder().decode(Deno.readFileSync(destNestFile)),
"nest copy"
);
// Copy again with overwrite option.
copySync(srcDir, destDir, { overwrite: true });
// Make sure the file has been overwritten.
assertEquals(
new TextDecoder().decode(Deno.readFileSync(destNestFile)),
"nest"
);
});
testCopySync(
"[fs] copy symlink file synchronously",
(tempDir: string): void => {
const dir = path.join(testdataDir, "copy_dir_link_file");
const srcLink = path.join(dir, "0.txt");
const destLink = path.join(tempDir, "0_copy.txt");
assert(
Deno.lstatSync(srcLink).isSymlink,
`'${srcLink}' should be symlink type`
);
copySync(srcLink, destLink);
const statInfo = Deno.lstatSync(destLink);
assert(statInfo.isSymlink, `'${destLink}' should be symlink type`);
}
);
testCopySync(
"[fs] copy symlink directory synchronously",
(tempDir: string): void => {
const originDir = path.join(testdataDir, "copy_dir");
const srcLink = path.join(tempDir, "copy_dir_link");
const destLink = path.join(tempDir, "copy_dir_link_copy");
ensureSymlinkSync(originDir, srcLink);
assert(
Deno.lstatSync(srcLink).isSymlink,
`'${srcLink}' should be symlink type`
);
copySync(srcLink, destLink);
const statInfo = Deno.lstatSync(destLink);
assert(statInfo.isSymlink);
}
);